Energy storage devices, energy storage systems, and charging networks

Abstract

The present invention relates to an energy storage device, an energy storage system, and a charging network. The energy storage device comprises a control module (30), a plurality of housings (10), and a plurality of energy units (2), wherein the plurality of housings are arranged along the height direction of the energy storage device, and each of the plurality of housings houses an energy unit. The control module is used to electrically control the energy units in the plurality of housings, wherein the height direction dimensions of at least one of the plurality of housings differ from the height direction dimensions of the other housings.

Description

[Technical Field]

[0001] This disclosure applies to application numbers PCT / CN2024 / 112473, filing date August 15, 2024; application numbers PCT / CN2024 / 112498, filing date August 15, 2024; application numbers PCT / CN2024 / 111558, filing date August 12, 2024; application numbers PCT / CN2024 / 112387, filing date August 15, 2024; application numbers 202421984591.6, filing date August 15, 2024; application numbers PCT / CN2024 / 112558, filing date August 15, 2024; application numbers PCT / CN2024 / 106588, filing date July 19, 2024; application numbers PCT / CN This disclosure is based on the following patent applications, filed 2024 / 104575, filed on 9 July 2024; application number PCT / CN2024 / 086624, filed on 8 April 2024; application number PCT / CN2024 / 104413, filed on 9 July 2024; application number 202322858858.9, filed on 24 October 2023; application number PCT / CN2024 / 086600, filed on 8 April 2024; and application number PCT / CN2024 / 127187, filed on 24 October 2024, which claim priority to the above patent applications, and the entirety of the above patent applications is incorporated by reference in this disclosure.

[0002] This disclosure relates to the battery technology field, and more particularly to energy storage devices, energy storage systems, and charging networks. [Background technology]

[0003] With the rapid development of science and technology, electrical energy has become an indispensable energy source for people's productive lives. To improve the smooth supply of electrical energy and ensure the normal operation of productive life, energy storage devices are necessary. Energy storage devices are devices that cyclically store and release electrical energy. By charging or discharging the energy storage device, electrical energy is stored in the energy storage device, or the stored electrical energy is supplied to electrical equipment. Energy storage devices are widely applied in fields such as industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation, and energy storage power plants.

[0004] In the development of energy storage devices, in addition to improving their performance, reducing the operating costs of these devices is also an important issue that cannot be ignored. Therefore, reducing the operating costs of energy storage devices is a technical issue that requires continuous improvement in energy storage technology. [Overview of the project] [Means for solving the problem]

[0005] In view of this, the embodiments of the present disclosure are expected to provide energy storage devices, energy storage systems, and charging networks that can reduce the cost of using energy storage devices.

[0006] To achieve the above objective, a first embodiment of the embodiments of this disclosure is an energy storage device, Multiple energy units, The energy storage device is arranged along the height direction and comprises multiple enclosures that house the energy units, The system comprises a control module for electrically controlling the energy units within a plurality of the above-mentioned enclosures, The present invention provides an energy storage device in which the dimensions of at least one of the multiple housings along the height direction differ from the dimensions of the other housings along the height direction.

[0007] The energy storage device provided by the embodiments of the present disclosure is configured such that the dimension along the height direction of at least one housing among the plurality of housings is set to be different from the dimension along the height direction of the other housings, which improves the flexibility of the housing capacity, makes it easier to adapt to different needs, and allows other components of the energy storage device other than the energy units to be accommodated in a housing with a relatively large dimension along the height direction. In this way, the energy units accommodated in different housings can be made substantially the same or completely the same, which is advantageous for improving the assembly efficiency of the energy units and reducing costs, and is also advantageous for improving the uniformity of the electric quantity of different housings, thereby being beneficial to improving the performance of the energy storage device.

[0008] In some embodiments, the dimension along the height direction of each of the above housings is not less than one third of the dimension along the height direction of a standard container, and each is smaller than the dimension along the height direction of one of the above standard containers.

[0009] The dimensions of the housings cannot be infinitely reduced. When the dimension along the height direction of each housing is not less than one third of the dimension along the height direction of the standard container, the energy storage device has high manufacturability, high volumetric energy density, and is more convenient for transportation and installation.

[0010] In some embodiments, the dimension along the height direction of each of the above housings is not less than one half of the dimension along the height direction of the standard container, and each is smaller than the dimension along the height direction of one of the above standard containers.

[0011] When the dimension of the casing along the height direction is equal to or more than 1 / 2 of the dimension of a standard container along the height direction, the energy storage apparatus has high manufacturability, high volumetric energy density, and is more convenient for transportation and installation. For example, when the energy storage apparatus includes two stacked casings, a plurality of energy units are arranged in each casing, the dimension of each casing along the height direction is equal to or more than 1 / 2 of the dimension of the standard container along the height direction, and is smaller than the dimension of one standard container along the height direction. After the two casings are stacked, the total height is greater than the height of one standard container, but the total weight of each casing provided with members such as the energy units is relatively low. With such an arrangement, each casing of the energy storage apparatus that is provided with members such as the energy units can be transported independently, and after being stacked at the use site, the electric quantity of the energy storage apparatus is relatively high.

[0012] In some embodiments, the dimension of each of the casings along the height direction is equal to or more than 1 / 3 of the dimension of the standard container along the height direction, and is smaller than 1 / 2 of the dimension of the standard container along the height direction.

[0013] When the dimension of each casing along the height direction is equal to or more than 1 / 3 of the dimension of the standard container along the height direction, the energy storage apparatus has high manufacturability, high volumetric energy density, and is more convenient for transportation and installation. For example, when the energy storage apparatus includes three stacked casings, a plurality of energy units are arranged in each casing, the dimension of each casing along the height direction is equal to or more than 1 / 3 of the dimension of the standard container along the height direction, and is less than 1 / 2 of the dimension of the standard container along the height direction. After the three casings are stacked, the total height is greater than the height of one standard container, but the total weight of each casing provided with members such as the energy units is relatively low. With such an arrangement, each casing of the energy storage apparatus that is provided with members such as the energy units can be transported independently, and after being stacked at the use site, the electric quantity of the energy storage apparatus is relatively high.

[0014] In some embodiments, the sum of the dimensions of multiple housings along the height direction is greater than the sum of the dimensions of one or more standard containers along the height direction.

[0015] By reducing the dimensions of the enclosure, the total weight of the enclosure and its components can be reduced, which is advantageous in improving the problem of overloading during transportation, thereby reducing the transportation cost of the energy storage device and, consequently, the operating cost of the energy storage device. Furthermore, by setting the sum of the dimensions of multiple enclosures along the height direction to be greater than the sum of the dimensions of one or more standard containers along the height direction, it is possible to maximize the dimensions of at least one enclosure along the height direction, thereby maximizing the electrical capacity of the energy storage device while maintaining the transportation weight. On the other hand, this is advantageous in increasing the volume and electrical capacity of the energy storage device, further reducing the operating cost of the energy storage device.

[0016] In some embodiments, there are m enclosures, the sum of the dimensions along the height direction of m1 enclosures out of the m enclosures is less than the sum of the dimensions along the height direction of n standard containers, the sum of the dimensions along the height direction of m1+1 enclosures out of the m enclosures is greater than the sum of the dimensions along the height direction of n standard containers, m is greater than m1, m is 2 or greater, and m1 is n or greater.

[0017] In this embodiment, the sum of the dimensions along the height direction of m1 enclosures is set to be smaller than the sum of the dimensions along the height direction of n standard containers, and m1 ≥ n, meaning that by reducing the dimensions of the enclosures, the total weight of the enclosures and components inside the enclosures can be reduced, which is advantageous in improving the problem of overloading during transport, reducing the transport cost of the energy storage device, and thereby reducing the operating cost of the energy storage device. On the other hand, setting the sum of the dimensions along the height direction of m1+1 enclosures to be larger than the sum of the dimensions along the height direction of n standard containers means that the dimensions along the height direction of at least one enclosure can be made as large as possible, and the amount of electricity in the energy storage device can be increased as much as possible, assuming that it matches the transport weight. On the other hand, this is advantageous in increasing the volume and amount of electricity in the energy storage device, further reducing the operating cost of the energy storage device.

[0018] In some embodiments, m1=1, n=1, or m1=2, n=1, or m1=2, n=2.

[0019] In some embodiments, the height dimension of the above enclosure is h, where 850 mm ≤ h < 2896 mm.

[0020] In this embodiment, by setting the height dimension of the enclosure to 850 mm ≤ h < 2896 mm, it is advantageous to reduce the total weight of the enclosure and its components, and it is possible to maximize the volume and electrical capacity of the energy storage device, thereby reducing the operating cost of the energy storage device.

[0021] In some examples, 1300mm ≤ h ≤ 2400mm.

[0022] This is advantageous in reducing the total weight of the enclosure and its components, and it is possible to maximize the volume and electrical capacity of the energy storage device, further reducing the operating cost of the energy storage device.

[0023] In some embodiments, the dimensions along the length of each housing coincide with the dimensions along the length of the standard container, and the dimensions along the width of each housing coincide with the dimensions along the width of the standard container.

[0024] In this embodiment, by setting the dimensions along the length of each housing to match the dimensions along the length of a standard container, and setting the dimensions along the width of each housing to match the dimensions along the width of a standard container, it is advantageous to match the transport tools and lifting equipment of conventional standard containers, thereby reducing the transport costs of the energy storage device and, consequently, the operating costs of the energy storage device.

[0025] In some embodiments, the height of the other housings, except for the housing at the very top, is the same.

[0026] In this embodiment, by setting the height of the other housings, excluding the topmost housing, to the same level, it becomes possible to use the same housing for the other housings, which is advantageous in improving the versatility of the housings and thereby advantageous in reducing costs.

[0027] In some embodiments, the energy storage device comprises a thermal management module, the enclosure comprises m units, and the thermal management module is used to manage the temperature of multiple energy units in the m enclosures.

[0028] In this embodiment, by installing a thermal management module, the thermal management module can manage the temperature of the energy unit, thereby reducing the risk of the energy unit overheating.

[0029] Furthermore, energy storage devices share a thermal management module, forming a complete system that is advantageous for saving space.

[0030] In some embodiments, there are m enclosures, each of which houses multiple energy units, and the control module is used to electrically control the multiple energy units in the m enclosures.

[0031] In other words, energy storage devices share control modules, forming a complete system, which is advantageous in terms of saving space.

[0032] In some embodiments, the plurality of housings comprises one first housing and at least one second housing, wherein the first housing is located above the second housing, and the thermal management module is located inside the first housing.

[0033] In this embodiment, by installing the thermal management module in the first enclosure at the very top, there are no obstructions above the thermal management module, which is advantageous for heat dissipation of the thermal management module and thereby improves the service life of the energy storage device. At the same time, it is advantageous in reducing the overall center of gravity height of a single enclosure, which is advantageous for transportation safety. Furthermore, the partitioned design from the energy chamber is advantageous in improving the thermal insulation effect of the energy chamber, and at the same time, the thermal management module blocks thermal radiation from the top, reducing the impact of thermal radiation on the inside of the energy chamber.

[0034] In some embodiments, the height of the first housing is greater than the height of the second housing.

[0035] Thus, it is advantageous to increase the space within the enclosure where the thermal management module is housed, thereby reducing the impact of the thermal management module on the volume of the energy unit to be housed; in other words, the enclosure has sufficient space to accommodate both the energy unit and the thermal management module. Furthermore, it allows for the placement of a thermal management module with higher cooling capacity, improving the thermal management capability.

[0036] In some embodiments, the thermal management module comprises a blower and a condenser, the blower and the condenser located at the top of the first housing, and ventilation openings for ventilation of the thermal management module are provided in the top wall and / or side wall of the first housing.

[0037] In this embodiment, the ventilation openings are located on the top wall and / or side wall of the first housing, which is advantageous for heat dissipation of the thermal management module, thereby allowing the thermal management module to have more heat dissipation passages and improving the temperature control effect of the thermal management module.

[0038] In some embodiments, the plurality of housings comprises one first housing and at least one second housing, wherein the first housing is located above the second housing, and the control module comprises a total control module located within the second housing.

[0039] Here, the main control module is located within a second enclosure, making it easier to repair. Furthermore, the mating of one main control module with two primary control modules is advantageous in saving space and reducing costs.

[0040] In some embodiments, the control module comprises two main control modules, each located within the first and second housings, and used to control the input or output of electrical energy to the energy units within the first and second housings, respectively, and both are electrically connected to the total control module.

[0041] Here, by installing the main control module in the first and second enclosures, the connection between the main control module and the energy units in the first and second enclosures is facilitated.

[0042] In some embodiments, the control module comprises a fire extinguishing control module, which is located within the first housing or the second housing and is used to extinguish the energy units located within the first housing and the second housing.

[0043] Using a single fire suppression control module to extinguish fires in both the first and second enclosures is advantageous in saving space and reducing costs.

[0044] In some embodiments, the energy storage device includes a power conversion system, which is housed in the first or second enclosure and electrically connected to the energy units in the multiple enclosures.

[0045] To facilitate rapid on-site installation by the client, at least some of the power conversion systems are housed within a first or second enclosure, allowing the enclosures to be stacked on-site before connection to the PCS is completed. This reduces the amount of on-site assembly work, improves assembly efficiency, and makes it easier for the client to use.

[0046] In some embodiments, at least some of the housings are provided with a first connector electrically connected to the control module, each housing is provided with a second connector electrically connected to a plurality of energy units, and the first connector is used to mate with each of the second connectors.

[0047] In this embodiment, the mating of the first connector with each of the second connectors enables rapid connection between the control module and the energy unit, making the connection between the control module and the energy unit more convenient.

[0048] In some embodiments, the energy storage device comprises a plurality of battery devices, each of which comprises a thermal management member and a plurality of energy units, the thermal management member being used to adjust the temperature of the energy units. At least some of the above-mentioned housings are provided with a third connector, each of the above-mentioned housings is provided with a fourth connector, the third connector communicates with the thermal management module, the fourth connector communicates with the thermal management member, and the third connector is used to mate with each of the fourth connectors.

[0049] In this embodiment, the mating of the third connector and the fourth connector enables rapid communication between the thermal management member and the thermal management module, facilitating the installation of the thermal management module.

[0050] In some embodiments, the thermal management module communicates with a plurality of thermal management members via liquid cooling piping, the liquid cooling piping comprises a main pipe and a plurality of control pipes, the plurality of control pipes are connected in parallel to the main pipe, the main pipe communicates with the thermal management module, the plurality of control pipes communicate with each of the plurality of thermal management members, the main pipe is located above the plurality of battery devices, or the main pipe is located below the plurality of battery devices.

[0051] In this configuration, the main piping is installed above or below multiple battery units, which is advantageous for shortening the liquid cooling piping, thereby contributing to cost reduction and improved cooling efficiency.

[0052] In some embodiments, the energy unit is a battery cell, and the weight of a single energy unit is between 5 kg and 60 kg.

[0053] The energy unit has an appropriate weight, which allows for the placement of a suitable number of energy units within the enclosure, and the energy density is appropriate to meet the transportation demands.

[0054] In some embodiments, the energy storage device includes an energy storage chamber, the energy storage chamber comprises one housing and components installed inside the housing, and the weight of the energy storage chamber is M, where M is 35 tons or less.

[0055] To ensure a single energy storage unit meets the transport limits of several countries, the total weight of the energy storage unit is kept within 35 tons, and the density of the energy storage units is maximized to reduce on-site installation work, while simultaneously improving energy efficiency per unit area and lowering the client's cost investment.

[0056] In some embodiments, the energy storage device comprises an energy storage chamber, the energy storage chamber comprises one housing and components installed inside the housing, the weight of the energy storage chamber is M, the total weight of the energy units inside the housing is M1, and (M1 / M) × 100% ≥ 60%.

[0057] Thus, on the one hand, it is possible to improve the weight ratio of energy units in a unit volume enclosure and increase the amount of electricity in an energy storage device per unit volume. On the other hand, in the transportation process of the energy storage device, a large portion of the transportation is for energy storage capacity, and the energy units are relatively difficult to produce and cannot be completed at the destination. Other structures can be completed at a location relatively close to the destination without requiring or reducing transportation, and after the enclosure is assembled into an energy storage device, it is advantageous in reducing the transportation cost of the assembled energy storage device.

[0058] In some examples, (M1 / M) × 100% ≥ 80%.

[0059] Thus, it is even more advantageous in reducing the transportation costs of assembled energy storage devices.

[0060] In some embodiments, the energy storage device comprises an energy storage chamber, the energy storage chamber comprises one housing and a component installed inside the housing, the weight of the energy storage chamber is M, a plurality of battery devices are installed inside the housing, the battery device comprises a case and a plurality of energy units, the plurality of energy units are housed inside the case, the total weight of the battery device is M2, and 70% ≤ (M2 / M) × 100% ≤ 90%.

[0061] This design allows for a balance between the energy density of the energy storage chamber and the structural strength of the enclosure, resulting in a more practical enclosure.

[0062] In some embodiments, the volume of the enclosure is V, the total volume of the energy unit inside the enclosure is V1, and (V1 / V) × 100% ≥ 30%.

[0063] On the one hand, it is possible to improve the volume ratio of energy units in a unit volume enclosure and increase the amount of electricity per unit volume of energy storage device. On the other hand, in the transportation process of energy storage devices, energy units that contribute more to the amount of energy stored and are relatively difficult to produce and cannot be completed at the destination, while other functional elements of the energy storage device, such as control elements, can be produced relatively close to the destination without requiring or reducing transportation, and it is advantageous to reduce the transportation cost of the assembled energy storage device after the enclosure has been assembled into the energy storage device.

[0064] In some examples, (V1 / V) × 100% ≥ 50%.

[0065] This is even more advantageous in reducing the transportation costs of assembled and formed energy storage devices.

[0066] In some embodiments, the volume of the housing is V, and a plurality of battery devices are installed inside the housing. Each battery device comprises a case and a plurality of energy units housed in the case. The total volume of the battery devices is V2, and 50% ≤ (V2 / V) × 100% ≤ 80%.

[0067] This design allows for a balance between the energy density of the energy storage device and the structural strength of the enclosure, resulting in a more practical enclosure.

[0068] In some embodiments, the energy storage device comprises an energy storage chamber, the energy storage chamber comprises a housing and a component installed inside the housing, the energy of the energy storage chamber is E, the length of the housing is a, the width of the housing is b, and the energy is 250 kW / m 2 ≤E / (a×b)≤700KW / m 2 That is the case.

[0069] This design achieves a balance between the energy density and the mass of the casing of the energy storage device, improving its practicality and making it convenient for transportation.

[0070] In several examples, 450 kW / m 2 ≤E / (a×b)≤600KW / m 2 That is the case.

[0071] This allows for further improvement of the energy density and housing mass settings of the energy storage device, facilitating the transportation of the energy storage device.

[0072] In some embodiments, two adjacent housings are connected along the height direction of the housing by welding, locking, locking connections, or fastening members.

[0073] This is advantageous in reducing the risk of mutual movement between two adjacent enclosures after they have been stacked, and is even more advantageous in improving the structural stability of the energy storage device.

[0074] In some embodiments, the plurality of housings comprises a first housing and a second housing, the first housing being located above the second housing, a position limiting pin being installed at the bottom of the first housing, and a position limiting hole being located at the top of the second housing, the position limiting pin being engaged with the position limiting hole.

[0075] The locking mechanism between position-limiting pins and position-limiting holes secures two adjacent housings, achieving the objective of restricting relative movement between the two adjacent housings with a simple structure.

[0076] In some embodiments, a first position limiting member is installed at the bottom of the first housing, a position limiting groove is installed in the first position limiting member, a second position limiting member is installed at the top of the second housing, a position limiting hole is installed in the second position limiting member, and both ends of the position limiting pin are engaged with the position limiting groove and the position limiting hole, respectively.

[0077] The position-restricting pins engage with the position-restricting grooves and position-restricting holes at both ends, thereby fixing two adjacent housings in place and achieving the objective of restricting the relative movement of two adjacent housings with a simple structure.

[0078] In some embodiments, the above housings are m in number, and the energy storage device further comprises a connection mechanism arranged to connect two adjacent above housings along the height direction of the housings. The connection mechanism includes a support member installed between two adjacent housings along the height direction, wherein the sum of the dimensions along the height direction of m1 of the housings and the sum of the dimensions along the height direction of m1-1 support members is smaller than the sum of the dimensions along the height direction of n standard containers, and the sum of the dimensions along the height direction of m1+1 of the housings and the sum of the dimensions along the height direction of m1 support members is larger than the sum of the dimensions along the height direction of n standard containers.

[0079] The enclosures are connected by a connecting mechanism, making the stacking of enclosures more stable. When transporting the enclosures, the sum of the height dimensions of m1 enclosures and the sum of the height dimensions of the support members installed between two adjacent enclosures in m1 is smaller than the sum of the heights of n standard containers. Conversely, the sum of the height dimensions of m1+1 enclosures and the sum of the height dimensions of m1 support members is larger than the sum of the height dimensions of n standard containers. This is advantageous in improving the volume and energy of the energy storage device and further reduces the operating cost of the energy storage device.

[0080] In some embodiments, the standard container is a 20-foot standard container, and the height of the standard container is 2896 mm, 2591 mm, or 2438 mm.

[0081] In some embodiments, the interior of at least a portion of the enclosure includes an energy chamber and a control chamber, the energy chamber is used to house at least one energy unit, at least a portion of the control module and / or at least a portion of the thermal management module are housed in the control chamber, a first door is provided on at least one side of the enclosure along the width direction, and a second door is provided on at least one side of the control chamber and / or piping chamber along the width direction.

[0082] In this embodiment, it is advantageous to reduce land waste, which is required by conventional enclosures to leave a repair passage of 3m or more between adjacent enclosures. By simply leaving a normal paint replenishment repair passage between grid-patterned enclosures, it improves the user's return on land investment and increases the user's energy return per unit area.

[0083] Embodiments of the present disclosure further provide an energy storage system comprising a power converter and the energy storage device, wherein the power converter is used to electrically connect a power generator and the energy storage device.

[0084] Embodiments of the present disclosure further provide a charging network comprising a charging station, the above-described energy storage device or the above-described energy storage system for supplying electrical energy to the charging station. [Brief explanation of the drawing]

[0085] [Figure 1] This is a schematic diagram of the structure of a charging network provided by some embodiments of this disclosure. [Figure 2] This is a schematic diagram of the structure of an energy storage system provided by some embodiments of this disclosure. [Figure 3] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 4] Figure 3 is a schematic diagram of the local structure of the energy storage device. [Figure 5] This is a layout diagram of an energy storage device provided by some embodiments of the present disclosure. [Figure 6] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 7] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 8] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 9] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 10] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 11] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 12] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 13] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 14]This is a schematic diagram of the structure of a control module provided by some embodiments of this disclosure. [Figure 15] This is a schematic diagram showing the structure of two adjacent housings of an energy storage device provided by the embodiments of this disclosure, fitted together. [Figure 16] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 17] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure. [Figure 18] This is a schematic diagram of a partial structure of a battery device provided by some embodiments of this disclosure. [Figure 19] This is a schematic diagram of the structure of an energy storage device provided by some embodiments of this disclosure.

[0086] Explanation of the symbols 1000: Charging network, 2000: Energy storage system, 100: Energy storage device, 100a: Energy storage room, 10: Housing, 101: First partition member, 102: Second partition member, 103: Third partition member, 104: First door, 2: Energy unit, 3: First housing, 31: First position limiting member, 311: Position limiting groove, 4: Second housing, 41: Second position limiting member, 411: Position limiting hole, 42: Position Restriction pin, 43: Support member, 6: First connector, 7: Second connector, 8: Third connector, 9: Fourth connector, 11: Energy room, 12: Control room, 13: Piping room, 14: Ventilation opening, 15: Main unit, 16: Mounting unit, 20: Thermal management module, 30: Control module, 301: Main control module, 302: Power distribution module, 303: Total control module, 304: Fire extinguishing control module, 40: Heat exchange piping, 50: Connection harness, 51: High-voltage harness, 52: Low-voltage harness, 60: Protective cover, 70: Second door, 80: Battery unit, 81: Case, 811: First case, 812: Second case, 82: Thermal management member, 90: Liquid cooling piping, 91: Main piping, 92: Control pipe, 200: Charging station, 300: Power converter, 3000: Power generator. [Modes for carrying out the invention]

[0087] Unless otherwise specified, all embodiments and optional embodiments of this disclosure can be combined to form new technical solutions.

[0088] Unless otherwise specified, all technical features and optional technical features of this disclosure can be combined to form new technical concepts.

[0089] With the development of clean energy, more and more devices use electrical energy as their driving energy, and power batteries that can store even more electrical energy and can be charged and discharged multiple times are rapidly developing, such as lithium-ion batteries. Among these, power batteries are not only applied to energy storage power systems such as hydroelectric, thermal, wind, and solar power plants, but are also widely applied to electric transportation equipment such as electric bicycles, electric motorcycles, and electric vehicles, as well as in many fields such as aerospace.

[0090] In the embodiments of this disclosure, the energy unit may be a secondary battery, which refers to an energy unit that can be used continuously by activating the active material through charging after the energy unit has been discharged.

[0091] The energy unit may be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this disclosure are not limited to these.

[0092] An energy unit typically comprises an electrode assembly. For example, the electrode assembly includes a positive electrode, a negative electrode, and a separator, with the separator placed between the positive and negative electrodes. During the charging and discharging process of the energy unit, active ions (e.g., lithium ions) repeatedly insert into and remove from the positive and negative electrodes. The separator, placed between the positive and negative electrodes, serves to prevent short circuits between them while simultaneously allowing the passage of active ions.

[0093] In some embodiments, the positive electrode may be a positive electrode piece that includes a positive electrode current collector and a positive electrode active material placed on at least one surface of the positive electrode current collector.

[0094] For example, the positive electrode current collector has two opposing surfaces in its thickness direction, and the positive electrode active material is placed on one or both of the two opposing surfaces of the positive electrode current collector.

[0095] As an example, the positive electrode current collector can be made of metal foil, conductive polymer material, carbon material, or composite current collector. For example, the metal foil may include, but is not limited to, stainless steel, copper, aluminum, nickel, titanium, or silver, and may also be made of pure metals, alloys, or surface-treated metals. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by forming a metal material (aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver, and silver alloy, etc.) on a polymer material base (a base material such as polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0096] As an example, the positive electrode active material may include at least one of the following materials: lithium-containing phosphates, lithium transition metal oxides, and modified compounds thereof. However, the disclosure is not limited to these materials, and other conventional materials that can be used as positive electrode active materials for batteries may be used.

[0097] In some embodiments, the negative electrode may be a negative electrode piece that includes a negative electrode current collector.

[0098] As an example, the negative electrode current collector can be made of metal foil, conductive polymer material, carbon material, or composite current collector. For example, the metal foil may include, but is not limited to, stainless steel, copper, aluminum, nickel, titanium, or silver, and can also be made of pure metals, alloys, or surface-treated metals. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector is formed by forming a metal material (copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, silver, and silver alloy, etc.) on a polymer material base (a base material such as polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0099] As an example, the negative electrode piece may include a negative electrode current collector and a negative electrode active material placed on at least one surface of the negative electrode current collector.

[0100] In some embodiments, the material of the positive electrode current collector may be aluminum, and the material of the negative electrode current collector may be copper.

[0101] In some embodiments, the electrode assembly further comprises a separator placed between the positive and negative electrodes.

[0102] In some embodiments, the separator is a separator film. The disclosure does not particularly limit the type of separator film, and any known porous separator film having good chemical and mechanical stability can be selected.

[0103] As an example, the main material of the separator film may be at least one selected from glass fiber, nonwoven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramics. The separator film may be a single-layer film or a multilayer composite film, and there are no particular restrictions. If the separator film is a multilayer composite film, the materials of each layer may be the same or different, and there are no particular restrictions. The separator may be a single component located between the positive and negative electrodes, or it may be attached to the surfaces of the positive and negative electrodes. The surface of the separator film may be coated with an inorganic particle coating, an organic particle coating, or an organic / inorganic composite coating.

[0104] In some embodiments, the separator is a solid electrolyte. The solid electrolyte is placed between the positive and negative electrodes and serves to transport ions and separate the positive and negative electrodes.

[0105] In some embodiments, the energy unit further comprises an electrolyte that plays a role in conducting ions between the positive and negative electrodes. This disclosure is not specifically limited to the type of electrolyte, which can be selected according to the needs. The electrolyte may be in a liquid, gel, or solid state.

[0106] The electrode assembly may have a wound structure, a laminated structure, or a mixed structure of wound and laminated elements.

[0107] In some embodiments, the electrode assembly is a wound structure. The positive electrode piece and the negative electrode piece are wound around the wound structure.

[0108] In some embodiments, the electrode assembly has a layered structure.

[0109] For example, multiple positive and negative electrode pieces can be installed, and these multiple positive and negative electrode pieces are stacked alternately.

[0110] For example, multiple positive electrode pieces can be installed, and the negative electrode pieces can be folded to form multiple folded stages that are stacked and installed, with one positive electrode piece sandwiched between adjacent folded stages.

[0111] As an example, the positive electrode piece and the negative electrode piece are each folded and stacked to form multiple folded sections.

[0112] For example, multiple separators can be installed, each placed between any adjacent positive or negative electrode pieces.

[0113] For example, the separator can be installed in a continuous manner, folded or wound, between any adjacent positive or negative electrode pieces.

[0114] In some embodiments, the shape of the electrode assembly may be cylindrical, flattened, or polygonal prism-shaped.

[0115] In some embodiments, the electrode assembly is provided with tabs from which current can be drawn from the electrode assembly. The tabs include a positive electrode tab and a negative electrode tab.

[0116] In some embodiments, the energy unit may include an outer casing. The outer casing may be a steel casing, an aluminum casing, a plastic shell (e.g., polypropylene), a composite metal shell (e.g., a copper-aluminum composite outer casing), or an aluminum-plastic film, etc. In some embodiments, the outer casing may be a sealed structure or a non-sealed structure. For example, if the outer casing is a non-sealed structure, the outer casing serves to protect the electrode assembly, and a sealed bag for enclosing the electrode assembly and electrolyte is further provided between the outer casing and the electrode assembly. Specifically, the sealed bag may be a bag-shaped insulating material or an aluminum-plastic film. If the outer casing is a sealed structure, it is used to enclose components such as the electrode assembly and electrolyte.

[0117] For example, the energy unit may be a cylindrical energy unit, a prismatic energy unit, a pouch energy unit, or an energy unit of other shape. A prismatic energy unit may include a corneal energy unit, a blade-shaped energy unit, or a polygonal prism battery. A polygonal prism battery may be, for example, a hexagonal prism battery, and the present disclosure is not particularly limited.

[0118] In some embodiments, the outer casing comprises an end cap and a casing, the casing having an opening, and the end cap covering the opening. The casing may have one or more openings. The end cap may have one or more.

[0119] In some embodiments, at least one electrode terminal is provided on the outer casing, and the electrode terminal is electrically connected to the tab. The electrode terminal may be directly connected to the tab or indirectly connected to the tab via a current collector. The electrode terminal may be mounted on the end cap or on the casing.

[0120] In some embodiments, the energy storage device includes an energy storage container, etc.

[0121] As power plants increasingly demand higher area energy density from energy storage devices, the total weight of the enclosure and its components also increases accordingly to improve the amount of electricity they can generate. Energy storage devices must be transported from the production site to the point of use by land and / or sea, and since there are usually weight limits for land and sea transport, a conflict arises between the need to improve energy density and the weight of the energy storage device.

[0122] In view of this, embodiments of the present disclosure provide novel technical proposals applicable to energy storage devices, energy storage systems comprising energy storage devices, and charging networks.

[0123] Energy storage devices can be used in energy storage power plants, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems, etc. Energy storage devices can store electrical energy as needed and output electrical energy at the appropriate time. For example, an energy storage device can store electrical energy when power consumption is low and supply electrical energy to relevant users or electrical equipment when power consumption is peak. The energy storage systems provided by embodiments of this disclosure may be any power system that requires an energy storage device.

[0124] Referring to Figure 1, Figure 1 is a schematic diagram of the structure of a charging network 1000 provided by an embodiment of the present disclosure. An embodiment of the present disclosure provides a charging network 1000 comprising a charging station 200 for charging electrical equipment. The charging network 1000 may further comprise an energy storage device 100 or an energy storage system 2000, the energy storage device 100 being electrically connected to the charging station 200 and used to supply electrical energy to the charging station 200.

[0125] To explain, the charging station 200 and the energy unit 2 in the energy storage device 100 are electrically connected via a cable, and the energy unit 2 can supply the electrical energy it has stored to the charging station 200. The charging station 200 has one or more connectors, which can supply energy to electrical equipment (e.g., a vehicle) by being connected to the electrical equipment. The charging network 1000 utilizes the energy storage device 100, which can effectively improve the reliability of the charging network 1000 and also contribute to improving the flexibility of the charging network 1000's layout.

[0126] The energy storage device 100 may be located inside the charging station 200 (for example, as an integrated storage and charging unit) or outside the charging station 200.

[0127] In a single charging network 1000, there may be one charging station 200, and the energy storage device 100 supplies electrical energy to that one charging station 200. Alternatively, there may be multiple charging stations 200, and the energy storage device 100 supplies electrical energy to multiple charging stations 200.

[0128] The energy storage device 100 may comprise a plurality of housings 10 and a plurality of energy units 2, the plurality of energy units 2 being housed in at least one housing 10, and the energy units 2 being electrically connected to the charging station 200 so that the energy units 2 supply electrical energy to the charging station 200.

[0129] As an example, as shown in Figure 1, the charging network 1000 comprises one energy storage device 100 and two charging stations 200, with the one energy storage device 100 supplying electrical energy to the two charging stations 200.

[0130] Referring to Figure 2, Figure 2 is a schematic diagram of the structure of an energy storage system 2000 provided by one embodiment of the present disclosure. The embodiment of the present disclosure provides an energy storage system 2000. The energy storage system 2000 includes a power converter 300, which can convert the power supplied from the power generator 3000 by electrically connecting the power generator 3000 and the energy storage device 100. After the power converter 300 converts the electrical energy supplied from the power generator 3000 into power, it is introduced into the energy storage device 100 for storage.

[0131] A power converter is used to connect the power generator 3000 and the energy storage device 100. The power generator 3000 is used to generate electrical energy, and the power generator 3000 is used to store the generated electrical energy in the energy storage device 100 using the power converter. The energy storage system 2000 can be adapted to the energy storage device 100 and effectively improve the operational reliability of the energy storage system 2000. In specific implementation, the power generator may be a solar panel, a hydroelectric power generator, a thermal power generator, etc. This disclosure does not limit the specific type of power generator.

[0132] As an example, as shown in Figure 2, the energy storage system 2000 comprises an energy storage device 100 and a power converter 300. The two power generators 3000 each transmit the electrical energy they generate to the power converter 300, which then converts the electrical energy into the energy storage device 100 for storage.

[0133] Referring to Figures 3 to 13, some embodiments of the present disclosure provide an energy storage device 100 comprising a plurality of housings 10 arranged along the height direction of the energy storage device 100.

[0134] The enclosure 10 may be a cabinet or a container, and may have a cavity inside that can accommodate other components of the energy storage device 100. The enclosure 10 may also have a hexahedral structure.

[0135] The enclosure 10 is typically a rectangular parallelepiped structure, with both its length and width parallel to the horizontal plane, and the length of the enclosure 10 parallel to the longest side of its rectangular parallelepiped structure. The height of the enclosure 10 is perpendicular to the ground. Illustratively, as shown in Figures 3 and 5, the length of the enclosure 10 is denoted by X, the width by Y, and the height by Z.

[0136] The multiple enclosures 10 may be understood as being arranged along the height direction of the energy storage device 100, and the multiple enclosures 10 being stacked or connected along the height direction of the enclosures 10.

[0137] Exemplary, the height direction is the length direction, width direction, or height direction of the housing 10. In the embodiments of this disclosure, the height direction is described as the height direction as an example.

[0138] Referring to Figures 3 and 6, the housing 10 in the energy storage device 100 may be any number of two or more. For example, the energy storage device 100 may comprise two housings 10 stacked along the height direction, or it may comprise three housings 10 stacked along the height direction. As an example, the sum of the heights of all the housings 10 stacked along the height direction is less than or equal to the sum of the heights of eight standard containers stacked together.

[0139] The energy storage device 100 further comprises a plurality of energy units 2 for supplying or storing electrical energy.

[0140] Here, the energy unit 2 may be a battery cell, or it may be a battery device 80 in which multiple battery cells are electrically connected.

[0141] Referring to Figure 18, the multiple energy units 2 can constitute a multilayer and / or multi-column battery device 80, each row or column comprising multiple battery devices 80.

[0142] The battery apparatus 80 referred to in the embodiments of this disclosure may comprise one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may comprise a plurality of battery cells connected in series, in parallel, or in series-parallel by a bus member.

[0143] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0144] For example, a battery cell assembly may be a battery module in which multiple battery cells are arranged and fixed together to form a single independent module. For example, a battery module may be formed by bundling multiple battery cells together with cable ties.

[0145] In some embodiments, the battery device 80 may be a battery pack comprising a case 81 and one or more battery cell assemblies housed within the case 81.

[0146] For example, the battery cell assembly may be a battery module, and the battery cell assembly may be housed in the case 81 in such a way that the battery module is fixed inside the case 81.

[0147] As an example, the battery cell assembly may be housed within the case 81 in such a way that multiple battery modules are directly fixed to the case 81.

[0148] As an example, referring to Figure 18, case 81 may comprise a first case 811 and a second case 812. The first case 811 and the second case 812 are engaged to form a sealed space inside case 81, which houses the battery cell assembly. Here, "sealed" means covering or closing, and may be either sealed or not sealed. The first case 811 may be a top cover or a base plate.

[0149] For example, the case 81 may include a top cover, a frame, and a base plate. The top cover and base plate are connected to the frame, respectively, to form a sealed space inside the case 81 that houses the battery cell assembly.

[0150] For example, each of the multiple enclosures 10 houses an energy unit 2.

[0151] Here, the number of energy units 2 housed in each enclosure 10 may be the same or different.

[0152] For example, the energy unit 2 may be a battery module or a battery pack.

[0153] In some embodiments, referring to Figure 4, the energy storage device 100 includes a control module 30 for electrically controlling energy units 2 within a plurality of housings 10.

[0154] In this embodiment, by installing the control module 30, the control module 30 can control the input or output of electrical energy to the energy unit 2, thereby achieving electrical control of the energy unit 2.

[0155] For example, the height dimension of each enclosure 10 is smaller than the height dimension of a standard container.

[0156] In other words, the height dimension of all enclosures 10 is smaller than the height dimension of a standard container.

[0157] Referring to Figures 3 and 6, dimension a along the length of the housing 10 is the distance between the two ends along the length of the housing 10, dimension b along the width of the housing 10 is the distance between the two ends along the width of the housing 10, and dimension h along the height of the housing 10 is the distance between the two ends along the height of the housing 10. Dimensions a, b, and h are the maximum dimensions of the outer profile of the housing 10 in the corresponding directions. The housing 10 may comprise eight corner members and six case walls. The eight corner members are located at the eight corners of the rectangular parallelepiped structure of the housing 10, each protruding from the case wall of the housing 10. The total span of two corner members positioned in the height direction is the height of the housing 10, the total span of two corner members positioned in the length direction is the length of the housing 10, and the total span of two corner members positioned in the width direction is the width of the housing 10. When calculating the dimensions of the housing 10, piping and cables connected to and located outside the housing 10 do not need to be included in the dimensions of the housing 10.

[0158] The dimensions of a standard container may be those of a standard container in transit, for example, 10 feet, 20 feet, 30 feet, 40 feet, or 45 feet, meeting the corresponding standards, with its length, width, and height having the corresponding dimensions. Standard containers may refer to the GB / T1413-2023 Series 1 container classification, dimensions, and rated mass.

[0159] Ten feet can include the following: the length dimension is 2991 mm with a tolerance of 0 mm to 5 mm, the width dimension is 2438 mm with a tolerance of 0 mm to 5 mm, and the height dimension is 2438 mm or less with a tolerance of 0 mm to 5 mm.

[0160] 20 shaku can include the following: the length dimension is 6058 mm with a tolerance of 0 mm to 6 mm, the width dimension is 2438 mm with a tolerance of 0 mm to 5 mm, and the height dimension is 2896 mm, 2591 mm, or 2438 mm or less with a tolerance of 0 mm to 5 mm.

[0161] 30 shaku can include the following: the length dimension is 9125 mm with a tolerance of 0 mm to 10 mm, the width dimension is 2438 mm with a tolerance of 0 mm to 5 mm, and the height dimension is 2896 mm, 2591 mm, or 2438 mm or less with a tolerance of 0 mm to 5 mm.

[0162] A 40-foot unit may include the following: the length dimension is 12192 mm with a tolerance of 0 mm to 10 mm, the width dimension is 2438 mm with a tolerance of 0 mm to 5 mm, and the height dimension is 2896 mm, 2591 mm, or 2438 mm or less with a tolerance of 0 mm to 5 mm.

[0163] A 45-foot unit may include the following: a length dimension of 13716 mm with a tolerance of 0 mm to 10 mm, a width dimension of 2438 mm with a tolerance of 0 mm to 5 mm, and a height dimension of 2591 mm or 2896 mm with a tolerance of 0 mm to 5 mm.

[0164] In the embodiments of this disclosure, for housings 10 of various dimensions, dimensions within ±1%, ±2%, ±3%, ±4%, and ±5% of the dimensions can be considered to be within tolerance.

[0165] By setting the dimensions of the housing 10 along the height direction to be smaller than the dimensions along the height direction of a standard container, the total weight of the housing 10 to which components such as the energy unit 2 are attached can be reduced, which is advantageous in improving the problem of overloading during transportation and reduces the transportation cost of the energy storage device 100.

[0166] For example, the sum of the height dimensions of multiple enclosures 10 is set to be greater than the sum of the height dimensions of one or more standard containers.

[0167] In other words, on the one hand, setting the sum of the dimensions of multiple enclosures 10 along the height direction to be greater than the sum of the dimensions of one or more standard containers along the height direction means that the dimensions of at least one enclosure 10 along the height direction can be made as large as possible, and the amount of electricity of the energy storage device 100 can be increased as much as possible, provided that it is matched to the transport weight. On the other hand, this is advantageous for increasing the volume and amount of electricity of the energy storage device 100, and further reduces the operating cost of the energy storage device 100.

[0168] Of course, in other embodiments, the sum of the dimensions of the multiple housings 10 along the height direction may be equal to the sum of the dimensions of one or more standard containers along the height direction.

[0169] For example, the height dimension of at least one of the multiple housings 10 may differ from the height dimension of the other housings 10, the height dimension of one housing 10 may differ from the height dimension of the other housings 10, and the height dimensions of multiple housings 10 may differ from the height dimension of the other housings 10.

[0170] The height dimension of at least one of the multiple enclosures 10 may differ from the height dimension of the other enclosures 10. The height dimensions of all enclosures 10 may be different, or some enclosures 10 may have the same height dimension.

[0171] The height dimension of at least one of the multiple enclosures 10 differs from the height dimension of the other enclosures 10, and the height dimension of some of the multiple enclosures 10 is not equal to the height dimension of some of the other enclosures 10.

[0172] In this way, the flexibility of the enclosure 10's capacity is improved, making it easier to adapt to different needs.

[0173] By setting the dimensions of at least one of the multiple housings 10 along the height direction to differ from the dimensions of the other housings 10 along the height direction, other components of the energy storage device 100, other than the energy unit 2, can be housed in the housing 10 with relatively large dimensions along the height direction. In this way, the energy unit 2 housed in different housings 10 can be made nearly identical or completely identical, which is advantageous in improving the assembly efficiency of the energy unit 2 and reducing costs, as well as improving the uniformity of the electrical quantities in the different housings 10, thereby improving the performance of the energy storage device 100.

[0174] Exemplary, the energy storage device 100 comprises three housings 10 stacked along the height direction, with the uppermost housing 10 having greater height dimensions than the other housings 10, the three housings 10 having the same height dimensions in at least the area housing the energy unit 2, and the uppermost housing 10 may have a surplus area for housing other components of the energy storage device 100 besides the energy unit 2, thus making the energy units 2 housed in the different housings 10 substantially or completely identical.

[0175] The energy storage device 100 provided by the embodiments of this disclosure can reduce the total weight of the housing 10 and its components by reducing the dimensions of the housing 10, which is advantageous in improving the problem of overloading during transport, reducing the transport cost of the energy storage device 100, and thereby reducing the operating cost of the energy storage device 100. Furthermore, by setting the sum of the dimensions of multiple housings 10 along the height direction to be greater than the sum of the dimensions of one or more standard containers along the height direction, on the one hand, setting the sum of the dimensions of multiple housings 10 along the height direction to be greater than the sum of the dimensions of one or more standard containers along the height direction means that the dimensions of at least one housing 10 along the height direction can be made as large as possible, and the amount of electricity of the energy storage device 100 can be increased as much as possible, provided that it is matched to the transport weight. On the other hand, this is advantageous in increasing the volume and amount of electricity of the energy storage device 100, further reducing the operating cost of the energy storage device 100. Furthermore, by setting the height-direction dimensions of at least one of the multiple housings 10 to differ from those of the other housings 10, the flexibility of the housing capacity 10 is improved, making it easier to adapt to different needs. In addition, other components of the energy storage device 100 other than the energy unit 2 can be housed in housings 10 with relatively large height-direction dimensions. In this way, the energy unit 2 housed in different housings 10 can be made nearly identical or completely identical, which is advantageous in improving the assembly efficiency of the energy unit 2 and reducing costs. It is also advantageous in improving the uniformity of the electrical quantities of the different housings 10, thereby improving the performance of the energy storage device 100.

[0176] In some embodiments, the standard container is a 20-foot standard container, and the height of the standard container is 2896 mm, 2591 mm, or 2438 mm.

[0177] The sum of the dimensions along the height direction of m1 enclosures 10 is less than the height of a standard 20-foot container (2896mm, 2591mm, or 2438mm), and the sum of the dimensions along the height direction of m1+1 enclosures 10 is greater than the height of a standard 20-foot container (2896mm, 2591mm, or 2438mm).

[0178] In some embodiments, the height dimension of each housing 10 is at least one-third of the height dimension of a standard container, and smaller than the height dimension of a single standard container.

[0179] For example, the energy storage device 100 may be installed stacked along the height direction, and may comprise three housings 10 in which the sum of the dimensions of the three housings 10 along the height direction is greater than the dimensions of a single standard container along the height direction.

[0180] Exemplary, the energy storage device 100 may comprise two enclosures 10 that are stacked and installed along the height direction, and whose combined dimensions along the height direction are greater than the dimensions of a single standard container along the height direction.

[0181] The dimensions of the enclosure 10 cannot be made infinitely small, and if the dimensions of the enclosure 10 along the height direction are at least one-third of the dimensions of a standard container along the height direction, the energy storage device 100 is highly manufacturable, has a high volumetric energy density, and is more convenient to transport and install.

[0182] In some embodiments, the height dimension of each housing 10 is at least half the height dimension of a standard container, and smaller than the height dimension of a single standard container.

[0183] If the height dimension of the enclosure 10 is 1 / 2 or more of the height dimension of a standard container, the energy storage device 100 is more manufacturable, has a higher volumetric energy density, and is more convenient to transport and install. For example, if the energy storage device 100 comprises two stacked enclosures 10, multiple energy units 2 are placed inside each enclosure 10, and the height dimension of each enclosure 10 is 1 / 2 or more of the height dimension of a standard container, and less than the height dimension of one standard container. After the two enclosures 10 are stacked, the height is greater than that of one standard container, but the weight of each enclosure 10 containing the energy units 2 and other components is relatively low. In this configuration, each enclosure 10 containing the energy units 2 and other components of the energy storage device 100 can be transported individually, and after being stacked at the site of use, the energy storage device 100 has a relatively high electrical capacity.

[0184] In some embodiments, the height dimension of each housing 10 is at least one-third of the height dimension of a standard container, and less than half of the height dimension of a standard container.

[0185] For example, multiple energy units 2 may be placed in each enclosure 10, multiple energy units 2 may be placed in some of the enclosures 10, energy units 2 may not be placed in some of the other enclosures 10, a control module 30 may be placed in the enclosures 10 that do not have energy units 2, and of course, a control module 30 may be placed in an enclosure 10 that has multiple energy units 2.

[0186] If the height dimension of the enclosure 10 is one-third or more of the height dimension of a standard container, the energy storage device 100 is highly manufacturable, has a high volumetric energy density, and is more convenient to transport and install. For example, if the energy storage device 100 consists of three stacked enclosures 10, multiple energy units 2 are placed inside each enclosure 10, and the height dimension of each enclosure 10 is one-third or more of the height dimension of a standard container, and less than half of the height dimension of a standard container. After the three enclosures 10 are stacked, the height is greater than that of a single standard container, but the weight of each enclosure 10 containing the energy units 2 and other components is relatively low. In this configuration, each enclosure 10 containing the energy units 2 and other components of the energy storage device 100 can be transported individually, and after being stacked at the site of use, the energy storage device 100 has a relatively high electrical capacity.

[0187] Of course, in some other embodiments, only one housing 10 may satisfy the above dimensional requirements, and some other housings 10 may not satisfy the above requirements, for example, some other housings 10 may have the dimensions of a standard container.

[0188] In some embodiments, there are m enclosures 10, the sum of the height dimensions of m1 enclosures 10 is less than the sum of the height dimensions of n standard containers, the sum of the height dimensions of m1+1 enclosures 10 is greater than the sum of the height dimensions of n standard containers, m is greater than m1, m is 2 or greater, and m1 is n or greater.

[0189] Here, the sum of the dimensions along the height direction of m1 enclosures 10 is set to be less than the sum of the dimensions along the height direction of n standard containers, and m1 is greater than or equal to n, that is, the dimension along the height direction of each enclosure 10 is smaller than the dimension along the height direction of one standard container.

[0190] m1+1 of the m enclosures 10 refer to any m1+1 enclosures 10 out of the m enclosures 10. For example, the energy storage device 100 has three enclosures 10, which are a first enclosure 3, a second enclosure 4, and a third enclosure 10. If m1+1 is equal to 2, these two enclosures 10 may be the first enclosure 3 and the third enclosure 10, the first enclosure 3 and the second enclosure 4, or the second enclosure 4 and the third enclosure 10.

[0191] m1+1 may be less than m, and the sum of the height dimensions of m1 of the m enclosures 10 may be less than the sum of the height dimensions of n standard containers, while the sum of the height dimensions of m1+1 of the m enclosures 10 may be greater than the sum of the height dimensions of n standard containers. For example, m is equal to 8, m1+1 is equal to 5, and n is equal to 3, and of these, 5 enclosures 10 may be any 5 enclosures 10 out of 8 enclosures 10.

[0192] Furthermore, m1+1 may be equal to m, and the sum of the height dimensions of m1 of the m enclosures 10 is less than the sum of the height dimensions of n standard containers, while the sum of the height dimensions of m1+1 of the m enclosures 10 is greater than the sum of the height dimensions of n standard containers. For example, m is equal to 2, and the sum of the heights of two enclosures 10 is greater than the height of one standard container.

[0193] It can be understood that m, m1, and n are all positive integers.

[0194] In some examples, m1=1 and n=1.

[0195] The energy storage device 100 may include more than two enclosures 10; for example, the energy storage device 100 may have three, five, or eight enclosures 10. The energy storage device 100 may also have only two enclosures 10.

[0196] By installing the housings 10 such that the height of at least one housing 10 is smaller than the height of one standard container, and the sum of the heights of the two housings 10 stacked together is greater than the height of one standard container, the dimensions of the housings 10 can be reduced, thereby reducing the total weight of the housings 10 to which components such as the energy unit 2 are attached. This is advantageous in improving the problem of overloading during transport and reduces the transport cost of the energy storage device 100. On the other hand, installing the housings 10 such that the sum of the dimensions along the height direction is greater than the dimensions along the height direction of one standard container means that the dimensions along the height direction of at least one housing 10 can be made as large as possible, and the amount of electricity in the energy storage device 100 can be increased as much as possible, provided that it matches the transport weight. This is also advantageous in increasing the volume and amount of electricity in the energy storage device 100, further reducing the operating cost of the energy storage device 100.

[0197] In some examples, m1=2 and n=1.

[0198] By installing the energy storage device 100 such that the height of at least one enclosure 10 is smaller than the height of a standard container, and the sum of the heights of the three stacked enclosures 10 is greater than the height of a standard container, the dimensions of at least one enclosure 10 are reduced, resulting in increased manufacturability, higher volumetric energy density, and easier transport and installation. On the other hand, by installing the energy storage device 100 such that the sum of the dimensions along the height direction is greater than the dimensions along the height direction of a standard container, the electrical capacity of the energy storage device 100 can be increased as much as possible, provided that the transport weight is matched. This is also advantageous in increasing the volume and electrical capacity of the energy storage device 100, further reducing the operating cost of the energy storage device 100.

[0199] In some examples, m1=2 and n=2.

[0200] By setting the height of at least one enclosure 10 to be smaller than the height of two standard containers, and the sum of the heights of the three stacked enclosures 10 to be greater than the sum of the heights of the two stacked standard containers, the dimensions of at least one enclosure 10 are reduced, resulting in a higher manufacturability of the energy storage device 100, a higher volumetric energy density, and easier transport and installation. On the other hand, by setting the sum of the dimensions along the height direction of the three enclosures 10 to be greater than the dimensions along the height direction of one standard container, the electrical capacity of the energy storage device 100 can be increased as much as possible, provided that it is matched to the transport weight. This is also advantageous in increasing the volume and electrical capacity of the energy storage device 100, and further reduces the operating cost of the energy storage device 100.

[0201] Here, the dimensions of the m enclosures 10 along the height direction may be the same, or the dimensions of the m enclosures 10 along the height direction may be different.

[0202] In some embodiments, referring to Figures 6 to 13, the energy storage device 100 further includes a connection mechanism (not shown) configured to connect two adjacent housings 10 along the height direction of the housing 10. The connection mechanism includes a support member 43 installed between two adjacent housings 10 along the height direction, and the sum of the dimensions along the height direction of m1 housings 10 out of m housings 10 and the sum of the dimensions along the height direction of m1-1 support members 43 is smaller than the sum of the dimensions along the height direction of n standard containers, while the sum of the dimensions along the height direction of m1+1 housings 10 out of m housings 10 and the sum of the dimensions along the height direction of m1 support member 43 is larger than the sum of the dimensions along the height direction of n standard containers.

[0203] Selectively, the housings 10 assembled and transported along the height direction are connected and fixed by support members 43, so that m1 housings 10 constitute the dimensions of n standard containers, and further include the height dimensions of the support members 43 between them. In other words, when support members 43 are installed, the height dimension of some of the m1 housings 10 may be the sum of their own height and the height of the support members 43 connected to them, because the support members 43 connecting the housings 10 along the height direction also occupy a certain amount of the height dimension of the housings 10.

[0204] For example, when m1 housings 10 are assembled and fixed together via support members 43 for transport, the sum of the dimensions of m1 housings 10 along the height direction and the sum of the dimensions of m1-1 support members 43 along the height direction is smaller than the sum of the dimensions of n standard containers along the height direction, while the sum of the dimensions of m1+1 housings 10 along the height direction and the sum of the dimensions of m1 support members 43 along the height direction is larger than the sum of the dimensions of n standard containers along the height direction. Selectively, the number of support members 43 between m1 housings 10 may be less than m1-1, and when these housings 10 are assembled to the dimensions of a standard container, the sum of the dimensions of m1 housings 10 and the sum of the dimensions of the actual support members 43 are included.

[0205] The connecting mechanism allows for greater stability when stacking the housings 10. When transporting the housings 10, the sum of the dimensions along the height direction of m1 housings 10 and the sum of the dimensions along the height direction of the support members 43 installed between two adjacent housings 10 of the m1 housings 10 is smaller than the sum of the heights of n standard containers. Conversely, the sum of the dimensions along the height direction of m1+1 housings 10 and the sum of the dimensions along the height direction of m1 support members 43 is larger than the sum of the dimensions along the height direction of n standard containers. This is advantageous for improving the volume and electrical capacity of the energy storage device 100 and further reduces the operating cost of the energy storage device 100.

[0206] In the embodiment of the present disclosure, the energy storage device 100 uses support members 43 during transport. However, if support members 43 are not required between the housings 10 that constitute the energy storage device 100, then the statement "the sum of the dimensions along the height direction of m1 housings 10 is less than the sum of the dimensions along the height direction of n standard containers, and the sum of the dimensions along the height direction of m1+1 housings 10 is greater than the sum of the dimensions along the height direction of n standard containers" should be understood to include the height of the support members 43 used. In other words, the sum of the dimensions along the height direction of m1 housings 10 is less than the sum of the dimensions along the height direction of n standard containers minus the sum of the heights of the support members 43 used, and the sum of the dimensions along the height direction of m1+1 housings 10 is greater than the sum of the dimensions along the height direction of n standard containers minus the sum of the heights of the support members 43 used. Such a case also belongs to the embodiment of the present disclosure.

[0207] In some embodiments, referring to Figures 3 to 13, the dimensions of each housing 10 along its length coincide with the dimensions of a standard container along its width, and the dimensions of each housing 10 along its width coincide with the dimensions of a standard container along its width.

[0208] In this embodiment, the dimensions of the housing 10 along its length are set to match the dimensions of a standard container along its length, and the dimensions of the housing 10 along its width are set to match the dimensions of a standard container along its width. This is advantageous for aligning with conventional transport tools and lifting equipment for standard containers, thereby reducing the transport costs of the energy storage device 100 and, consequently, the operating costs of the energy storage device 100.

[0209] By setting the dimensions of the enclosure 10 along the height direction to be smaller than the dimensions of a standard container along the height direction, the enclosure 10 does not exceed the height of the enclosure 10 of the corresponding standard container for sea or land transport during transport, thereby improving the convenience of transporting the enclosure 10 and reducing transport costs. The dimensions of the enclosure 10 along the length direction and the dimensions along the width direction of the enclosure 10 both match those of a standard container, which is advantageous for matching the horizontal area occupied by the enclosure 10 during transport with that of a standard container and for aligning with conventional transport tools and lifting equipment for standard containers, thereby reducing the transport costs of the energy storage device 100 and, consequently, the operating costs of the energy storage device 100.

[0210] At the same time, the sum of the height dimensions of m1 out of m enclosures 10 is smaller than the sum of the height dimensions of n standard containers, and the sum of the height dimensions of m1+1 out of m enclosures 10 is larger than the sum of the height dimensions of n standard containers, which is advantageous for improving the volume and electrical capacity of the energy storage device 100, further reducing the operating cost of the energy storage device 100, and by reducing the dimensions of the enclosures 10, the total weight of the enclosures 10 to which components such as the energy unit 2 are attached can be reduced, which is advantageous for improving the problem of overloading during transport and reduces the transport cost of the energy storage device 100. On the other hand, the fact that the sum of the height dimensions of m1+1 out of m enclosures 10 is larger than the sum of the height dimensions of n standard containers means that the height dimensions of at least one enclosure 10 can be made as large as possible, and the electrical capacity of the energy storage device 100 can be improved as much as possible, provided that it matches the transport weight. Furthermore, this is advantageous for improving the volume and electrical capacity of the energy storage device 100, and further reduces the operating cost of the energy storage device 100.

[0211] In some embodiments, the energy storage device 100 includes an energy storage chamber 100a, the energy storage chamber 100a comprises a housing 10 and components installed inside the housing 10, and the weight of the energy storage chamber 100a is M, where M is 35 tons or less.

[0212] The components installed inside the enclosure 10 include, for example, the energy unit 2, connecting pipes, the control module 30, or the thermal management module 20.

[0213] Here, the energy storage chamber 100a refers to an enclosure that can be transported and lifted independently.

[0214] For example, the weight of the energy storage chamber 100a may be any one of the following values: 10 tons, 15 tons, 20 tons, 25 tons, 30 tons, or 35 tons, or any two of the following values.

[0215] During the process of lifting the energy storage chamber 100a, the lifting of the related lifting equipment becomes easier, and the transportation of the energy storage chamber 100a becomes easier.

[0216] To ensure that a single energy storage chamber 100a meets the transport limits of several countries, the total weight of the energy storage chamber 100a is controlled to within 35 tons, and the density of the energy storage chambers 100a is maximized to reduce the amount of work required for on-site installation, while simultaneously improving energy efficiency per unit area and reducing the client's cost investment.

[0217] In this embodiment, the sum of the dimensions of m1 housings 10 along the height direction is set to be smaller than the sum of the dimensions of n standard containers along the height direction, and the sum of the dimensions of m1+1 housings 10 along the height direction is set to be larger than the sum of the dimensions of n standard containers along the height direction, and the weight of the energy storage room 100a is controlled to be within 35 tons. As a result, the energy storage room 100a can be transported and lifted normally in multiple transport scenarios such as land transport and sea transport, and the problem of the energy storage room 100a exceeding the load limit of roads, bridges, lifting equipment, etc., due to its weight being excessive, and the resulting increase in transport costs due to the need to dismantle the energy storage room 100a for transport or to transport specialized equipment, can be avoided to some extent.

[0218] In some embodiments, referring to Figure 3, the height dimension of each housing 10 is h, where 850 mm ≤ h < 2896 mm.

[0219] For example, the height dimension of the enclosure 10 may be any one of the following values ​​or a value between any two of the following values: 850mm, 900mm, 950mm, 1000mm, 1050mm, 1100mm, 1150mm, 1200mm, 1300mm, 1400mm, 1500mm, 1600mm, 1800mm, 2000mm, 2100mm, 2200mm, 2300mm, 2400mm, 2500mm, 2600mm, 2700mm, 2800mm, 2895mm, and the sum of the dimensions along the height direction of m1 enclosures 10 is less than the sum of the dimensions along the height direction of n standard containers, and the sum of the dimensions along the height direction of m1+1 enclosures 10 out of the m enclosures 10 is greater than the sum of the dimensions along the height direction of n standard containers.

[0220] In this embodiment, by setting the height dimension of the housing 10 to 850 mm ≤ h < 2896 mm, it is possible to control the total weight of the housing 10 and its internal components to within 35 tons, and to maximize the volume and electrical capacity of the energy storage device 100, thereby further reducing the operating cost of the energy storage device 100.

[0221] In some embodiments, the height dimension of the housing 10 is h, where 1300mm ≤ h ≤ 2400mm.

[0222] For example, the height dimension of the enclosure 10 may be any one of the following values ​​or a value between any two of the following values: 1300mm, 1350mm, 1400mm, 1450mm, 1500mm, 1550mm, 1600mm, 1650mm, 1700mm, 1750mm, 1800mm, 1850mm, 1900mm, 1950mm, 2000mm, 2050mm, 2100mm, 2150mm, 2200mm, 2250mm, 2300mm, 2350mm, 2400mm, and the sum of the dimensions along the height direction of m1 enclosures 10 is less than the sum of the dimensions along the height direction of n standard containers, and the sum of the dimensions along the height direction of m1+1 enclosures 10 out of the m enclosures 10 is greater than the sum of the dimensions along the height direction of n standard containers.

[0223] The energy storage device 100 provided by the embodiments of this disclosure is installed such that the sum of the height dimensions of m1 housings 10 is smaller than the sum of the height dimensions of n standard containers, and m1 ≥ n, i.e., the height dimensions of the housing 10 are smaller than the height dimensions of one standard container. On the one hand, by reducing the dimensions of the housing 10, the total weight of the housing 10 and its internal components can be made smaller than the weight of one standard container, which allows it to be fitted to standard lifting equipment, i.e., it can be fitted to conventional standard container transport tools, provided that the weight does not exceed transport and road limits, which is advantageous in improving the problem of overloading during transport, reducing the transport cost of the energy storage device 100 and reducing the operating cost of the energy storage device 100. On the other hand, by installing the sum of the height dimensions of m1+1 housings 10 larger than the sum of the height dimensions of n standard containers, it is advantageous in improving the volume and electrical capacity of the energy storage device 100 and further reducing the operating cost of the energy storage device 100.

[0224] In some embodiments, referring to Figure 4, the energy storage device 100 includes a thermal management module 20 for managing the temperatures of multiple energy units 2 of the energy storage device 100.

[0225] In this embodiment, by installing the thermal management module 20, the thermal management module 20 can manage the temperature of the energy unit 2 and reduce the risk of runaway temperature of the energy unit 2.

[0226] In some embodiments, referring to Figure 4, there are m housings 10, each housing multiple energy units 2, and the thermal management module 20 is used to manage the temperature of the multiple energy units 2 in the m housings 10.

[0227] In other words, the energy storage device 100 shares the thermal management module 20, forming a complete system, which is advantageous for saving space.

[0228] In some embodiments, referring to Figure 4, there are m housings 10, each housing multiple energy units 2, and the control module 30 is used to electrically control the multiple energy units 2 in the m housings 10.

[0229] In other words, the energy storage device 100 shares the control module 30, forming a complete system, which is advantageous for saving space.

[0230] In some embodiments, referring to Figure 4, the control module 30 is housed within at least one enclosure 10.

[0231] Here, the control module 30 may be housed in some of the housings 10, or all of the housings 10 may house the control module 30.

[0232] In an embodiment in which control modules 30 are housed in some of the housings 10, the housings 10 without control modules 30 can electrically control the energy unit 2 by the control modules 30 in the other housings 10.

[0233] Exemplary, the energy storage device 100 comprises two housings 10, which are a first housing 3 and a second housing 4, of which a control module 30 is housed in the first housing 3, and multiple energy units 2 are installed in both the first housing 3 and the second housing 4, and the control module 30 of the first housing 3 can electrically control the energy units 2 of the first housing 3 and the second housing 4.

[0234] If each of the housings 10 houses a control module 30, and both the first housing 3 and the second housing 4 are each equipped with multiple energy units 2, then the control modules 30 in all the housings 10 can cooperate to electrically control the multiple energy units 2 in the first housing 3 and the second housing 4, while the control modules 30 in each housing 10 may operate independently, that is, the control module 30 in the first housing 3 electrically controls the multiple energy units 2 in the first housing 3, and the control module 30 in the second housing 4 electrically controls the multiple energy units 2 in the second housing 4.

[0235] In some embodiments, referring to Figure 4, the thermal management module 20 is housed within at least one enclosure 10.

[0236] The thermal management module 20 may be a liquid cooling unit, an air conditioner, a geothermal cooling system, or a seawater cooling system.

[0237] In this case, the thermal management module 20 may be housed in some of the housings 10, or all of the housings 10 may house the thermal management module 20.

[0238] In an embodiment in which some of the housings 10 house a thermal management module 20, the housing 10 without a thermal management module 20 can have the temperature of the energy unit 2 managed by the thermal management module 20 in the other housings 10.

[0239] For example, the energy storage device 100 comprises two housings 10, which are a first housing 3 and a second housing 4, of which the first housing 3 houses a thermal management module 20, while the second housing 4 does not house a thermal management module 20. The thermal management module 20 in the first housing 3 can manage the temperature of the energy units 2 in the first housing 3 and the second housing 4.

[0240] If each enclosure 10 houses a thermal management module 20, and both the first enclosure 3 and the second enclosure 4 are each equipped with multiple energy units 2, then the thermal management modules 20 in all enclosures 10 can cooperate to control the temperature of the multiple energy units 2 in the first enclosure 3 and the second enclosure 4, while the thermal management modules 20 in each enclosure 10 may operate independently, that is, the thermal management module 20 in the first enclosure 3 may control the temperature of the multiple energy units 2 in the first enclosure 3, and the thermal management module 20 in the second enclosure 4 may control the temperature of the multiple energy units 2 in the second enclosure 4.

[0241] For example, if the control module 30 and thermal management module 20 in the first enclosure 3 and the second enclosure 4 can operate independently, the first enclosure 3 and its internal components can be considered as an independent energy storage device 100, and the second enclosure 4 and its internal components can also be considered as an independent energy storage device 100. For example, if the control module 30 and thermal management module 20 in the first enclosure 3 and the second enclosure 4 need to jointly control the energy units 2 in the two enclosures 10, the first enclosure 3 and its internal components and the second enclosure 4 and its internal components can be considered to jointly form a single energy storage device 100. Of course, in this case, it is also possible to operate only some of the energy units 2, for example, by performing electrical and temperature control on the energy unit 2 in the first enclosure 3, causing the energy unit 2 in the first enclosure 3 to input or output electrical energy, while the energy unit 2 in the second enclosure 4 does not output electrical energy, which can be determined by the actual usage needs.

[0242] Due to dimensional issues with the energy unit 2, it may not be possible to completely enclose the housing 10. By installing the control module 30 and / or the thermal management module 20 inside the housing 10, the space inside the housing 10 can be fully utilized, further improving the space utilization rate of the housing 10.

[0243] Furthermore, the control module 30 and / or the thermal management module 20 are mounted on the housing 10, and the piping and wiring of the control module 30 and / or the thermal management module 20 are connected at the time of shipment. This reduces the amount of work required for piping and wiring to install the control module 30 and / or the thermal management module 20 on-site, contributing to a reduction in installation costs.

[0244] Of course, in other embodiments, the control module 30 and / or the thermal management module 20 may be installed outside the housing 10.

[0245] For example, at least some of the control modules 30 are installed outside the housing 10.

[0246] In other words, some control modules 30 may be installed outside the housing 10, some control modules 30 may be installed inside the housing 10, and all control modules 30 may be installed outside the housing 10.

[0247] Here, by installing at least some of the control modules 30 outside the housing 10, the impact of the control modules 30 on the energy unit 2 can be reduced to some extent, and the control modules 30 do not occupy space inside the housing 10. In addition, repair and replacement of the control modules 30 are also easy.

[0248] Here, the control module 30 installed outside the housing 10 may be connected to at least one housing 10, or the control module 30 installed outside the housing 10 may be installed separately from the housing 10 and connected to the housing 10 via connecting wiring or connecting piping.

[0249] For example, at least some of the thermal management modules 20 are installed outside the enclosure 10.

[0250] In other words, some of the thermal management modules 20 may be installed outside the enclosure 10, some may be installed inside the enclosure 10, and all of the thermal management modules 20 may be installed outside the enclosure 10.

[0251] Here, by installing at least some of the thermal management modules 20 outside the enclosure 10, the impact of the thermal management modules 20 on the energy unit 2 can be reduced to some extent, and the thermal management modules 20 do not occupy space inside the enclosure 10. In addition, repair and replacement of the thermal management modules 20 are also easy.

[0252] Here, the thermal management module 20 installed outside the housing 10 may be connected to at least one housing 10, or the thermal management module 20 installed outside the housing 10 may be installed separately from the housing 10 and connected to the housing 10 via a connecting line or connecting pipe.

[0253] Of course, the thermal management module 20 may have some of its structure installed outside the housing 10 and other parts of its structure installed inside the housing 10.

[0254] For example, the thermal management module 20 includes a cooling fan installed outside the enclosure 10. For instance, the thermal management module 20 includes a cooling fan and a heat exchanger installed outside the enclosure 10.

[0255] Thus, cooling fans and heat exchangers are advantageous for heat exchange with the outside, thereby improving heat exchange efficiency.

[0256] In some embodiments, the energy storage device 100 does not need to include a thermal management module 20.

[0257] In some embodiments, referring to Figure 14, the control module 30 comprises at least one of the following: a main control module 301, a power distribution module 302, a total control module 303, and a fire extinguishing control module 304.

[0258] Energy unit 2 is electrically connected to the main control module 301. The main control module 301 and the total control module 303 are electrically connected. The main control module 301, the total control module 303, and the fire extinguishing control module 304 are all electrically connected to the power distribution module 302.

[0259] The main control module 301 is used to control the input and output of high-voltage electrical energy to the energy unit 2 within the housing 10. The total control module 303 is used to control the switching operation of the main control module 301 within the housing 10.

[0260] The fire extinguishing control module 304 is used to control the operation of the fire extinguishing element when a fire occurs due to a temperature imbalance in the housing 10. The fire extinguishing element may be a fire extinguisher or the like, and the fire extinguishing element may be installed inside the housing 10.

[0261] The power distribution module 302 is used to electrically connect the main control module 301, the general control module 303 and the fire extinguishing control module 304, thereby facilitating circuit conduction of the main control module 301, the general control module 303 and the fire extinguishing control module 304, and maintaining normal operation of the main control module 301, the general control module 303 and the fire extinguishing control module 304.

[0262] Here, in the embodiment where the energy storage device 100 includes a plurality of control modules 30, the plurality of control modules 30 may be the same or different.

[0263] Exemplarily, each of the housings 10 is provided with a control module 30, that is, the control modules 30 are in one-to-one correspondence with the housings 10, and one control module 30 controls the input and output of electric energy of the energy unit 2 in one housing 10. In this way, the control module 30 is advantageous for realizing electrical control of the energy unit 2.

[0264] Exemplarily, referring to FIG. 6 to FIG. 13, some of the housings 10 are provided with the control modules 30, and the other part of the housings 10 are not provided with the control modules 30, that is, one control module 30 correspondingly controls the input or output of electric energy of the energy units 2 in the plurality of housings 10. For example, when the number of the housings 10 is two, one housing 10 is provided with the control module 30, the other housing 10 is not provided with the control module 30, and the control module 30 correspondingly controls the input or output of electric energy of the energy units 2 in the two housings 10.

[0265] Of course, one housing 10 may have a plurality of control modules 30, one housing 10 is provided with a plurality of energy units 2, the plurality of energy units 2 are connected in series to form a battery group, a plurality of battery clusters are connected in parallel, and one control module 30 correspondingly controls one or a plurality of battery clusters.

[0266] The thermal management module 20 includes, for example, a heat exchange unit which is a liquid cooling unit. Referring to Figure 4, the thermal management module 20 realizes temperature management of the energy unit 2 by performing heat exchange with the energy unit 2 via a heat exchange pipeline 40 (e.g., a liquid cooling pipeline 90), so that the risk of thermal runaway of the energy unit 2 can be reduced.

[0267] Exemplarily, each housing 10 is provided with a thermal management module 20, that is, the thermal management modules 20 are in one-to-one correspondence with the housings 10, and one thermal management module 20 correspondingly manages the temperature of the energy unit 2 in one housing 10.

[0268] Exemplarily, referring to Figures 6 to 13, part of the housings 10 are provided with the thermal management module 20, and the other part of the housings 10 are not provided with the thermal management module 20, that is, one thermal management module 20 correspondingly manages the temperature of the energy units 2 in the plurality of housings 10. For example, when the number of the housings 10 is two, one housing 10 is provided with the thermal management module 20, the other housing 10 is not provided with the thermal management module 20, and the thermal management module 20 can perform heat exchange with the energy units 2 in the two housings 10 via the heat exchange pipeline 40 (e.g., the liquid cooling pipeline 90), that is, the thermal management module 20 can correspondingly manage the temperature of the energy units 2 in the two housings 10.

[0269] In some embodiments, the plurality of housings 10 includes one first housing 3 and at least one second housing 4, the first housing 3 is located above the second housing 4, and the thermal management module 20 is located inside the first housing 3.

[0270] That is, the first housing 3 is located at the top of the energy storage device, and the thermal management module 20 is located inside the first housing 3 at the top.

[0271] Exemplarily, the thermal management module 20 is located at the top of the first housing 3.

[0272] In this embodiment, by installing the thermal management module 20 at the top of the first housing 3, there are no obstructions above the thermal management module 20, which is advantageous for heat dissipation of the thermal management module 20 and thereby improves the service life of the energy storage device 100. At the same time, it is advantageous to reduce the overall center of gravity height of the single housing 10, which is advantageous for transportation safety. Furthermore, the partitioned design from the energy chamber 11 is advantageous for improving the heat insulation effect of the energy chamber 11, and at the same time, the thermal management module 20 blocks heat radiation from the top, reducing the impact of heat radiation on the inside of the energy chamber 11.

[0273] In some embodiments, the height dimension of the housing 10 containing the thermal management module 20 is greater than the height dimension of other housings 10.

[0274] In other words, the height of the first enclosure 3 is greater than the height of the second enclosure 4.

[0275] Thus, it is advantageous to increase the space within the housing 10 that houses the thermal management module 20, thereby reducing the impact of the thermal management module 20 on the housing volume of the energy unit 2. In other words, the housing 10 has sufficient space to accommodate both the energy unit 2 and the thermal management module 20. Furthermore, a thermal management module 20 with a higher cooling capacity can be installed, improving the thermal management capability.

[0276] In some embodiments, the thermal management module 20 comprises a blower and a condenser, the blower and condenser located at the top of a first housing 3, and ventilation openings 14 for ventilation of the thermal management module 20 are provided in the top wall and / or side wall of the first housing 3.

[0277] Exemplary, the thermal management module 20 includes a coolant cycle circuit and a refrigerant circulation circuit, with the thermal management member 82 constituting part of the coolant cycle circuit and the condenser constituting part of the refrigerant circulation circuit. The thermal management module 20 and the energy unit 2 are independent of each other, reducing the risk of mutual interference between the thermal management module 20 and the energy unit 2.

[0278] The coolant flows in a cycle through the coolant cycle circuit, circulates through the thermal management member 82, exchanges heat with the energy unit 2, and cools the energy unit 2. After exchanging heat with the energy unit 2, the coolant further circulates through the evaporator and exchanges heat with the evaporator, exchanging the amount of heat exchanged from the energy unit 2 with the evaporator, and lowering the temperature of the coolant.

[0279] A condenser is a component that exchanges heat with the refrigerant flowing through it.

[0280] The evaporator is installed in both the coolant cycle circuit and the refrigerant circulation circuit. Inside the evaporator, there are coolant flow paths that are involved in forming the coolant cycle circuit and allowing the coolant to flow through it, and refrigerant flow paths that are involved in forming the refrigerant circulation circuit and allowing the refrigerant to flow through it. The coolant flow paths and refrigerant flow paths are not connected to each other in order to prevent the coolant and refrigerant from mixing. In the evaporator, the coolant can exchange heat with the refrigerant, and in particular, the heat of the coolant can be exchanged with the refrigerant, thereby allowing the evaporator to cool the coolant flowing through it.

[0281] For example, a fan is used to dissipate heat from a condenser.

[0282] Here, a ventilation opening 14 may be installed in the top wall of the first housing 3, and the entire top wall of housing 10 may be open to form one ventilation opening 14. Alternatively, a part of the top wall of housing 10 may be open to form one ventilation opening 14. For example, an opening may be installed on one side along the longitudinal direction of the top wall of housing 10, and a part of the top wall of housing 10 may form a ventilation opening 14.

[0283] For example, the ventilation openings 14 on the top wall of the housing 10 may be used for exhaust, and the ventilation openings 14 on the side walls of the housing 10 may be used for intake.

[0284] In this embodiment, the ventilation opening 14 is located in the top wall and / or side wall of the first housing 3, which is beneficial to heat dissipation of the thermal management module 20, so that the thermal management module 20 can have more heat dissipation paths, and the temperature control effect of the thermal management module 20 is improved.

[0285] In some embodiments, referring to FIG. 3 to FIG. 13, at least a portion of the interior of the housing 10 has an energy chamber 11 and a control chamber 12. The energy chamber 11 is used to accommodate at least one energy unit 2, and at least a portion of the control module 30 and / or at least a portion of the thermal management module 20 is accommodated in the control chamber 12.

[0286] Here, that at least a portion of the control module 30 and / or at least a portion of the thermal management module 20 is accommodated in the control chamber 12 means that at least a portion of the control module 30 may be accommodated in the control chamber 12, at least a portion of the thermal management module 20 may be accommodated in the control chamber 12, or at least a portion of the control module 30 and at least a portion of the thermal management module 20 may both be accommodated in the control chamber 12.

[0287] Exemplarily, a part of the control module 30 and / or a part of the thermal management module 20 may be accommodated in the control chamber 12 inside the housing 10, another part of the control module 30 and / or another part of the thermal management module 20 may be disposed outside the housing 10, and all of the control module 30 and / or all of the thermal management module 20 may be accommodated in the control chamber 12 inside the housing 10.

[0288] Exemplarily, in an embodiment where a plurality of housings 10 each have a control chamber 12 inside, the control modules 30 in all the housings 10 may work in cooperation, and the control module 30 in each housing 10 may operate independently.

[0289] Exemplarily, in an embodiment where a plurality of housings 10 each have a thermal management module 20 inside, the thermal management modules 20 in all the housings 10 may work in cooperation, and the thermal management module 20 in each housing 10 may operate independently.

[0290] In this embodiment, by installing the energy chamber 11 and the control chamber 12 inside at least a portion of the housing 10, and by installing at least a portion of the control modules 30 and / or at least a portion of the thermal management modules 20 inside the housing 10, the space inside the housing 10 can be utilized to the fullest extent, and the space utilization rate of the housing 10 can be further improved.

[0291] In some embodiments, at least some of the housings 10 include a first partition member 101 installed between the energy chamber 11 and the control chamber 12, and the energy chamber 11 and the control chamber 12 share the first partition member 101.

[0292] Here, the first partition member 101 may include a metal plate.

[0293] Here, the first partition member 101 is advantageous in improving the structural strength of the housing 10, and is also advantageous in improving the sealing performance and heat retention performance of the energy chamber 11.

[0294] A heat exchange pipe 40 and a connecting harness 50 are drilled in the first partition member 101, and the connecting harness 50 includes a high-pressure harness 51 and / or a low-pressure harness 52. The thermal management module 20 in the control room 12 can exchange heat with the energy unit 2 in the energy room 11 via the heat exchange pipe 40 (e.g., a liquid-cooling pipe 90), and the control module 30 in the control room 12 can electrically control the energy unit 2 in the energy room 11 via the connecting harness 50.

[0295] For example, when the heat exchange piping 40 and the connecting harness 50 penetrate the first partition member 101, the penetration location can be sealed.

[0296] For example, the interior of the first partition member 101 is filled with an insulating medium.

[0297] Here, the insulating medium may be any of several insulating materials, such as insulating cotton.

[0298] The insulating medium is advantageous not only for improving the structural strength of the first partition member 101, but also for providing flame retardancy and heat retention effects, thereby reducing heat dissipation from the energy chamber 11 and the influence of external heat on the energy unit 2 inside the energy chamber 11.

[0299] In some embodiments, the housing 10 comprises a plurality of control rooms 12, each of which may house a control module 30 and a thermal management module 20. Alternatively, each of the control rooms 12 may house a control module 30, or each of the control rooms 12 may house a thermal management module 20.

[0300] In some embodiments, there are multiple control rooms 12, and the first partition member 101 may be installed between adjacent control rooms 12, and adjacent control rooms 12 share the first partition member 101.

[0301] For example, the first partition member 101 separates the thermal management module 20 and the control module 30, reducing the risk of interference between the thermal management module 20 and the control module 30, thereby improving the reliability of the energy storage device 100.

[0302] The thermal management module 20 and the control module 30 are separated by a first partition member 101. The first partition member 101 can separate the thermal management module 20 and the control module 30, thereby reducing interference between the thermal management module 20 and the control module 30. In other words, it can reduce electromagnetic interference between the high-voltage circuit and the low-voltage circuit, and also reduce the impact of external rainfall and sunlight on the control module 30.

[0303] There are multiple ways in which the energy room 11 and the control room 12 can be arranged.

[0304] In some embodiments, at least some of the control rooms 12 and energy rooms 11 are arranged along the height direction of the housing 10.

[0305] Here, some of the control rooms 12 and energy rooms 11 may be arranged along the height direction of the housing 10, or all of the control rooms 12 and energy rooms 11 may be arranged along the height direction of the housing 10.

[0306] For example, the control room 12 is installed above the energy room 11, and in this way, the components inside the control room 12 can block the heat radiation from the top, thereby reducing the impact of heat radiation on the inside of the energy room 11.

[0307] Exemplary, at least some of the control rooms 12 and energy rooms 11 are arranged along the length of the housing 10.

[0308] Here, some of the control rooms 12 and energy rooms 11 may be arranged along the length of the housing 10, or all of the control rooms 12 and energy rooms 11 may be arranged along the length of the housing 10.

[0309] By placing the control room 12 at the end of the housing 10, the use of space inside the housing 10 can be maximized, and the control room 12 and the energy room 11 can be placed closer together, which is advantageous in improving the compactness of the structure.

[0310] In some embodiments, referring to Figures 3 and 4, a thermal management module 20 is housed in at least some of the control rooms 12, and the thermal management module 20 is located at the top of the uppermost housing 10.

[0311] In this embodiment, the thermal management module 20 is located at the top of the uppermost housing 10, and since there is no obstruction above the thermal management module 20, it is advantageous for heat dissipation of the thermal management module 20, thereby improving the service life of the energy storage device 100. At the same time, it is advantageous for reducing the overall center of gravity height of the single housing 10, which is advantageous for transportation safety. Furthermore, the partitioned design from the energy chamber 11 is advantageous for improving the heat insulation effect of the energy chamber 11, and at the same time, the thermal management module 20 blocks heat radiation from the top, reducing the impact of heat radiation on the inside of the energy chamber 11.

[0312] In some embodiments, referring to Figures 6 and 7, a control module 30 is housed in at least some of the control rooms 12. The control module 30 and the energy room 11 are arranged along the height direction of the housing 10.

[0313] In other words, the control module 30 may be located above the energy chamber 11, below the energy chamber 11, or midway between the two energy chambers 11 in the height direction.

[0314] For example, if there are two housings 10, the control module 30 is installed on top of the lower housing 10, that is, above the energy chamber 11 of the lower housing 10. This ensures that the height of the control unit meets ergonomic requirements, allowing maintenance personnel to stand on one side of the housing 10 and reach out to access the control unit's operating handle, facilitating repairs and inspections. Furthermore, controlling the top of the control chamber 12 is advantageous in shortening the length of the high-voltage harness 51 and low-voltage harness 52 between it and the upper housing 10, thereby reducing costs.

[0315] In some embodiments, referring to Figures 8 and 9, a control module 30 is housed in at least some of the control rooms 12. The control module 30 and the energy room 11 are arranged along the longitudinal direction of the housing 10.

[0316] In other words, the control module 30 may be located at the left end of the energy chamber 11, at the right end of the energy chamber 11, or midway between the two energy chambers 11 in the longitudinal direction.

[0317] In some embodiments, referring to Figures 3 to 13, the energy storage device 100 is used to include a piping chamber 13 that houses at least some of the connecting piping between the control module 30, the thermal management module 20, and the energy unit 2.

[0318] For example, the connecting piping may include liquid cooling piping 90, high-pressure harness 51, low-pressure harness 52, fire extinguishing piping, water fire extinguishing piping, etc.

[0319] The piping chamber 13 is used to house at least some of the connecting piping between the control module 30, the thermal management module 20, and the energy unit 2. That is, the connecting pipes and / or connecting wires between the control module 30, the thermal management module 20, and the energy unit 2 may be partially or entirely drilled into the piping chamber 13.

[0320] Of course, the piping room 13 may also be used to house other components of the energy storage device 100, such as the fire suppression control module 304.

[0321] For example, the high-pressure harness 51 and low-pressure harness 52 connected to the piping room 13, the energy room 11, and the control room 12 are all connected via connectors mounted on the bulkhead, the piping connections between the piping room 13 and the energy room 11 are connected via liquid-cooled fittings, and all interfaces penetrating the walls are sealed.

[0322] In this embodiment, the energy storage device 100 is equipped with a piping room 13 to accommodate at least a portion of the connecting piping between the control module 30, the thermal management module 20, and the energy unit 2, thereby simplifying wiring and piping, making the layout of the connecting piping rational, and facilitating repair and replacement.

[0323] In some embodiments, referring to Figures 6 to 9, each housing 10 is equipped with a piping chamber 13, that is, each housing 10 is equipped with one piping chamber 13, and of course, a single housing 10 may be equipped with multiple piping chambers 13, and at least some of the connecting piping between the control module 30, the thermal management module 20 and the energy unit 2 within a single housing 10 may be housed in the corresponding piping chamber 13, thus simplifying wiring and piping, making the layout of connecting piping rational and facilitating repair and replacement.

[0324] In some embodiments, a piping chamber 13 is installed in some of the housings 10, while a piping chamber 13 is not installed in some of the other housings 10.

[0325] Some enclosures 10 are equipped with a piping room 13, while others are not. In other words, one piping room 13 accommodates at least some of the connecting piping between the control module 30, thermal management module 20, and energy unit 2 in multiple enclosures 10. For example, if there are two enclosures 10, one enclosure 10 is equipped with a piping room 13, while the other enclosure 10 is not. This means that the piping room 13 accommodates at least some of the connecting piping between the control module 30, thermal management module 20, and energy unit 2 in the two enclosures 10.

[0326] In some embodiments, referring to Figures 10 to 13, at least some of the housings 10 have an energy chamber 11 and a control chamber 12 inside, the energy chamber 11 is used to house at least one energy unit 2, at least some control modules 30 and / or at least some thermal management modules 20 are housed in the control chamber 12, a piping chamber 13 is installed inside the housing 10, and the piping chamber 13 and the energy chamber 11 are arranged along the length of the housing 10.

[0327] In other words, the piping chamber 13 may be located at the left end of the energy chamber 11, at the right end of the energy chamber 11, or midway along the length of the two energy chambers 11.

[0328] Of course, in embodiments having a control room 12, the piping room 13 and the energy room 11 may be arranged along the length of the housing 10 or along the height of the housing 10.

[0329] In another embodiment, referring to Figure 16, the piping chamber 13 is installed outside the housing 10, and exemplary, by installing a protective cover 60, the piping chamber 13 is located inside the protective cover 60, or the piping chamber 13 is confined by the protective cover 60 and the housing 10.

[0330] One thing to explain is that in an embodiment where the piping chamber 13 is installed outside the housing 10, the piping chamber 13 does not belong to the housing 10, and therefore the dimensions of the piping chamber 13 are not calculated within the dimensions of the housing 10.

[0331] In some embodiments, referring to Figures 6 to 9, at least some of the housings 10 are provided with a second partition member 102 installed between the energy chamber 11 and the piping chamber 13, and the energy chamber 11 and the piping chamber 13 share the second partition member 102.

[0332] Here, the second partition member 102 may include a metal plate.

[0333] Here, the second partition member 102 is advantageous in improving the structural strength of the housing 10, and is also advantageous in improving the sealing performance and heat retention performance of the energy chamber 11.

[0334] In some embodiments, referring to Figures 9 and 12, at least some of the housings 10 are provided with a third partition member 103 installed between the piping room 13 and at least some of the control rooms 12, and the piping room 13 and at least some of the control rooms 12 share the third partition member 103.

[0335] Here, the third partition member 103 may include a metal plate.

[0336] Here, the third partition member 103 is advantageous in improving the structural strength of the housing 10, and is also advantageous in improving the sealing performance and heat retention performance of some of the control rooms 12.

[0337] For example, the control room 12 housing the thermal management module 20 may be in communication with the piping room 13, thereby connecting the energy room 11 to the control room 12 housing the thermal management module 20 via the piping room 13.

[0338] For example, the control room 12, which houses the control module 30, may be isolated from the piping room 13.

[0339] In some embodiments, referring to Figure 4, the energy room 11, the control room 12, and the piping room 13 are each fitted with a first door 104, and the first doors 104 of the energy room 11, the control room 12, and the piping room 13 are all located on the front side of the housing 10.

[0340] In this embodiment, by installing the first doors 104 of the energy room 11, control room 12, and piping room 13 on the front side of the housing 10, inspections can be performed through each of the first doors 104. This reduces the land waste that conventional housings 10 require reserving repair passages of 3m or more between adjacent housings 10, and improves the user's land investment return and energy return per unit area by simply reserving normal paint replenishment and repair passages between the grid-patterned housings 10.

[0341] In some embodiments, referring to Figure 17, at least some of the housing 10 have an energy chamber 11 and a control chamber 12 inside, the energy chamber 11 is used to house at least one energy unit 2, at least some control modules 30 and / or at least some thermal management modules 20 are housed in the control chamber 12, a first door 104 is installed on at least one side along the width direction of the housing 10, and a second door 70 is installed on at least one side along the width direction of the control chamber 12 and / or piping chamber 13.

[0342] Here, the second door 70 may be an inspection door, and by installing an inspection door, it is easy to inspect the energy storage device 100 through the inspection door.

[0343] Inspection doors may be installed in the energy room 11, the control room 12, and the piping room 13.

[0344] In some embodiments, referring to Figure 17, a second door 70 is installed on at least one side along the width direction of the control room 12 and / or piping room 13.

[0345] In other words, the enclosure 10 may have a second door 70 installed on at least one side in the width direction, or it may have a second door 70 installed on both sides in the width direction, so that the enclosure 10 can have a second door 70 installed in the area of ​​at least a portion of the control room 12 and / or at least a portion of the piping room 13.

[0346] For example, a second door 70 is installed on the right side of the upper enclosure 10, the right side of the control room 12, and the right side of the lower enclosure 10. By opening the second door 70, the liquid cooling piping 90, high-pressure harness 51, and low-pressure harness 52 can be inspected.

[0347] In this embodiment, the conventional housing 10 is advantageous in reducing land waste, which would otherwise require a repair passage of 3m or more between adjacent housings 10. By simply leaving a normal paint replenishment repair passage between the grid-patterned housings 10, the user's return on land investment and the user's energy return per unit area are improved.

[0348] In some embodiments, referring to Figures 6 to 13 and 19, the height of the top housing 10 is greater than the height of the other housings 10, and at least some of the thermal management modules 20 are housed in the top housing 10.

[0349] Here, some of the thermal management modules 20 may be housed in the uppermost housing 10, or all of the thermal management modules 20 may be housed in the uppermost housing 10.

[0350] Here, by positioning the uppermost housing 10 to accommodate at least some of the thermal management modules 20, the thermal management modules 20 can be located at the top of the energy storage device 100, and since there are no obstructions above the thermal management modules 20, this is further advantageous for heat dissipation of the thermal management modules 20.

[0351] By setting the height of the topmost housing 10 to be greater than the height of the other housings 10, it is advantageous to increase the space within the housing 10 in which the thermal management module 20 is housed, thereby reducing the impact of the thermal management module 20 on the housing volume of the energy unit 2, and it is advantageous to improve the versatility of the energy unit 2 by providing substantially the same or completely the same space for housing the energy unit 2 in different housings 10.

[0352] For example, the energy storage device 100 may be installed stacked along the height direction, and may have three housings 10 in which the height of the top housing 10 is greater than the heights of the two housings 10 below it.

[0353] Exemplary, the energy storage device 100 may be installed stacked along the height direction and comprise two housings 10, the upper housing 10 having a height greater than the lower housing 10.

[0354] In this embodiment, by positioning the top housing 10 to accommodate at least some of the thermal management modules 20, it is advantageous for heat dissipation of the thermal management modules 20, allowing the thermal management modules 20 to have more heat dissipation passages and improving the temperature control effect of the thermal management modules 20. At the same time, it is advantageous to lower the overall center of gravity height of the single energy storage chamber 100a, which is advantageous for transport safety. In addition, the thermal management modules 20 block thermal radiation from the top, reducing the impact of thermal radiation on the inside of the energy chamber 11. Furthermore, by setting the height of the top housing 10 to be greater than the height of the other housings 10, it is advantageous to increase the space inside the housing 10 in which the thermal management modules 20 are housed, thereby reducing the impact of the thermal management modules 20 on the housing volume of the energy unit 2. That is, the housing 10 has sufficient space to house the energy unit 2 and the thermal management modules 20, and a thermal management module 20 with a higher cooling capacity can be placed, improving the thermal management capacity. Furthermore, the ability to house the energy unit 2 within different housings 10, each housing having substantially the same or completely identical space, is advantageous in improving the versatility of the energy unit 2 portion, improving the assembly efficiency of the energy unit 2 and reducing costs, as well as improving the uniformity of the electrical quantities in the different housings 10, thereby improving the performance of the energy storage device 100.

[0355] In some embodiments, referring to Figures 6 to 13 and 19, the heights of the housings 10 other than the top housing 10 are the same.

[0356] For example, the energy storage device 100 may be installed stacked along the height direction, and may comprise three housings 10 such that the height of the top housing 10 is greater than the heights of the two housings 10 below it, and the heights of the two housings 10 below it are the same.

[0357] In this embodiment, by setting the height of the other housings 10, excluding the top housing 10, to be the same, it becomes possible to use the same housing 10 for the other housings 10, which is advantageous in improving the versatility of the housings 10 and thereby advantageous in reducing costs.

[0358] Of course, in other embodiments, the energy storage device 100 may be installed stacked along the height direction, and may have three housings 10 in which the height of the top housing 10 is greater than the heights of the two housings 10 below it, and the heights of the two housings 10 below it are different.

[0359] In some embodiments, referring to Figures 6 to 13 and 19, the multiple housings 10 comprise a first housing housing 3 and at least one second housing 4, the first housing 3 being located above the second housing 4, the second housing 4 comprising a main body 15, the first housing 3 comprising the main body 15 and a mounting portion 16 installed above the main body 15, at least some of the thermal management modules 20 being housed in the mounting portion 16, and the main body 15 being used to house at least one energy unit 2.

[0360] Here, one first enclosure 3 and at least one second enclosure 4 are stacked and installed along the height direction, with the height of the first enclosure 3 being greater than the height of the second enclosure 4.

[0361] Here, both the first housing 3 and the second housing 4 have a main body 15 for housing at least one energy unit 2, which is advantageous in improving the versatility of the main body 15 of the first housing 3 and the second housing 4, improving the assembly efficiency of the energy unit 2 and reducing costs, and improving the uniformity of the electrical quantities of the different housings 10, thereby improving the performance of the energy storage device 100.

[0362] The first housing 3 further includes a mounting section 16 installed above the main body 15, and at least some of the thermal management modules 20 are housed in the mounting section 16. That is, the first housing 3 has a mounting section 16 that houses at least some of the thermal management modules 20 compared to the second housing 4. In this way, the space inside the first housing 3 is increased and used to house the thermal management modules 20, thereby reducing the impact of the thermal management modules 20 on the volume of the main body 15. That is, the first housing 3 has sufficient space to house the energy unit 2 and the thermal management modules 20, and can accommodate thermal management modules 20 with higher cooling capacity, thereby improving thermal management capabilities. In addition, the installation of the mounting section 16 above the main body 15 is advantageous for heat dissipation of the thermal management modules 20, allowing the thermal management modules 20 to have more heat dissipation passages and improving the temperature control effect of the thermal management modules 20. At the same time, it is advantageous to lower the overall center of gravity height of the single energy storage chamber 100a, which is advantageous for transport safety. Furthermore, the thermal management module 20 blocks thermal radiation from the top, reducing the impact of thermal radiation on the inside of the energy chamber 11.

[0363] In some embodiments, referring to Figures 6 to 13 and 19, the main body 15 has an energy chamber 11 and a control chamber 12 inside, the energy chamber 11 is used to house at least one energy unit 2, and at least some control modules 30 and / or at least some thermal management modules 20 are housed in the control chamber 12.

[0364] Here, "at least some of the control modules 30 and / or at least some of the thermal management modules 20 are housed in the control room 12" means that at least some of the control modules 30 may be housed in the control room 12, at least some of the thermal management modules 20 may be housed in the control room 12, or at least some of the control modules 30 and at least some of the thermal management modules 20 may be housed in the control room 12.

[0365] For example, all thermal management modules 20 may be housed in the mounting section 16, or some thermal management modules 20 may be housed in the mounting section 16 and other some thermal management modules 20 may be housed in the control chamber 12 of the main unit 15.

[0366] In this embodiment, by installing the energy chamber 11 and the control chamber 12 inside the main body 15, and by installing at least some of the control modules 30 and / or at least some of the thermal management modules 20 inside the control chamber 12, the space inside the housing 10 can be utilized to the fullest extent, and the space utilization rate of the housing 10 can be further improved.

[0367] In some embodiments, as shown in Figures 6 to 13, the main body 15 has an additional piping chamber 13 inside.

[0368] In some embodiments, referring to Figures 6 to 13 and 19, at least some of the thermal management modules 20 are housed in the control chamber 12 of the first housing 3, and at least some of the control modules 30 are housed in the control chamber 12 of the second housing 4.

[0369] At least some of the control modules 30 may be housed in the control room 12 of the second housing 4, all of the control modules 30 may be housed in the control room 12 of the second housing 4, or some of the control modules 30 may be housed in the control room 12 of the second housing 4 and other some of the control modules 30 may be housed in the control room 12 of the first housing 3.

[0370] For example, the thermal management module 20 includes a blower, a compressor, an evaporator, a condenser, and the like.

[0371] Here, some assemblies (such as fans) of the thermal management module 20 are housed in the mounting section 16, and some assemblies (such as compressors, evaporators, and condensers) of the thermal management module 20 are housed in the first housing 3 or the second housing 4, thereby electrically connecting the power conversion system to the energy units located within the first and second housings.

[0372] In this embodiment, by housing some assemblies (such as fans) of the thermal management module 20 in the mounting section 16, heat dissipation from the thermal management module 20 is promoted, the thermal management module 20 has more heat dissipation passages, the temperature control effect of the thermal management module 20 is improved, and the power consumption of the secondary source of the thermal management module 20 is reduced. Furthermore, by housing some assemblies (such as compressors, evaporators, and condensers) of the thermal management module 20 in the control chamber 12 of the first housing 3, the overall height of the first housing 3 is reduced, the center of gravity is lowered, and the space utilization rate within the first housing 3 is improved, making the structural layout more rational.

[0373] In some embodiments, referring to Figures 6 to 13 and 19, the energy storage device 100 includes a power conversion system housed in a first housing 3 or a second housing 4, and electrically connected to the energy units in the first housing 3 and the second housing 4.

[0374] A Power Conversion System (PCS) can control the charging and discharging process of a battery, perform AC / DC conversion, and supply power directly to an AC load when there is no power grid. A PCS consists of a DC / AC bidirectional converter, a control unit, etc. The PCS controller receives background control commands via communication and controls the converter to charge or discharge the battery based on the code and magnitude of the power command, thereby adjusting the active and reactive power of the power grid. The PCS controller communicates with the Battery Management System (BMS) via a CAN interface to acquire status information of the battery group and can implement protective charging and discharging for the batteries.

[0375] In this configuration, some of the control modules 30 may be housed in the control room 12 of the first housing 3, while other control modules 30 may be housed in the control room 12 of the second housing 4.

[0376] Here, some of the power conversion systems may be housed in the control room 12 of the second housing 4, while other power conversion systems may be housed in the control room 12 of the first housing 3.

[0377] To facilitate rapid on-site installation by the client, at least some of the power conversion systems are housed in the control room 12 of the second enclosure 4, allowing connection to the PCS to be completed after the enclosure 10 is stacked on-site. This reduces the amount of on-site assembly work, improves assembly efficiency, and makes it easier for the client to use.

[0378] In some embodiments, referring to Figures 6 to 13, the multiple housings 10 comprise a first housing 3 and a second housing 4, the first housing 3 being located above the second housing 4, at least the first housing 3 housing multiple energy units 2, the thermal management module 20 being installed inside the first housing 3 and located on top of the multiple energy units 2, and the control module 30 being installed in the first housing 3 and / or the second housing 4.

[0379] The first enclosure 3 and the second enclosure 4 are stacked in the height direction, with the first enclosure 3 positioned above the second enclosure 4.

[0380] The fact that the control module 30 is installed in the first housing 3 and / or the second housing 4 means that the control module 30 may be installed in the first housing 3, or in the second housing 4, or in both the first housing 3 and the second housing 4.

[0381] Because the first housing 3 is positioned above the second housing 4, the thermal management module 20 can be positioned at the top of the energy storage device 100, and since there is no obstruction above the thermal management module 20, it is even more advantageous for heat dissipation of the thermal management module 20. In addition, the thermal management module 20 and the control module 30 can be further separated, and interference between the thermal management module 20 and the control module 30 can be reduced.

[0382] In this embodiment, by housing the thermal management module 20 in the control chamber 12 of the upper-located first housing 3 and the control module 30 in the control chamber 12 of the lower-located second housing 4, interference between the thermal management module 20 and the control module 30 can be reduced. Furthermore, the thermal management module 20 is located in the upper first housing 3, which is advantageous for heat dissipation of the thermal management module 20. This allows the thermal management module 20 to have more heat dissipation passages, improving the temperature control effect of the thermal management module 20. At the same time, it is advantageous to lower the overall center of gravity height of the single energy storage chamber 100a, which is advantageous for transport safety. In addition, the partitioned design from the energy chamber 11 is advantageous for improving the heat insulation effect of the energy chamber 11, and at the same time, the thermal management module 20 blocks heat radiation from the top, reducing the impact of heat radiation on the inside of the energy chamber 11.

[0383] In some other embodiments, the thermal management module 20 may be further installed at the bottom of the first housing 3 and / or at the bottom of the second housing 4 and / or at the top of the second housing 4.

[0384] Exemplary, the first enclosure 3 comprises an energy chamber 11, a piping chamber 13, and a control chamber 12 housing a thermal management module 20. The energy chamber 11 is isolated from the piping chamber 13 and the control chamber 12 housing the thermal management module 20, while the control chamber 12 housing the thermal management module 20 communicates with the piping chamber 13. The energy chamber 11 is connected to the control chamber 12 housing the thermal management module 20 on the upper level via the piping chamber 13, and simultaneously connected to the lower enclosure 10. The energy chamber 11 houses an energy unit 2, connecting piping between the energy units 2, connecting harnesses 50 between the energy units 2, liquid cooling main piping 91, fire extinguishing sensors, etc. The piping chamber 13 comprises liquid cooling piping 90 penetrating the wall, a high-pressure harness 51, a low-pressure harness 52, fire extinguishing piping, water fire extinguishing piping, etc. The control room 12, which houses the thermal management module 20, is equipped with a liquid cooling unit and its fixing bracket, and ventilation openings 14 for ventilation of the thermal management module 20 are installed in the top wall and / or side wall of the control room 12 that houses the thermal management module 20.

[0385] Exemplary, the second enclosure 4 comprises an energy room 11, a piping room 13, and a control room 12 housing a control module 30, with the energy room 11, the piping room 13, and the control room 12 housing the control module 30 being isolated from each other. The energy room 11 is connected to the upper control room 12, the piping of the first enclosure 3, and external high-voltage harnesses 51 and low-voltage harnesses 52 through the piping room 13. The energy room 11 comprises an energy unit 2, connecting piping between the energy units 2, a liquid-cooling main piping 91, connecting harnesses 50 between the energy units 2, and fire extinguishing sensors, etc. The control room 12 comprises a main control box and a power distribution control box. The piping room 13 includes a connecting harness 50 between the control room 12 and the energy room 11, a high-pressure harness 51 and a low-pressure harness 52 connected to the upper energy room 11, piping and harnesses connected to the upper unit, a fire extinguishing control system, fire extinguishing piping, a high-pressure harness 51 and a low-pressure harness 52 connected to the external PCS and EMS, and water fire extinguishing piping, etc.

[0386] To facilitate rapid installation at the client's site, the control module 30 and thermal management module 20 are integrated inside the housing 10. This allows the housing 10 to be stacked on-site before connecting to the PCS and EMS, which reduces the amount of on-site assembly work, improves assembly efficiency, and makes it easier for the client to use.

[0387] An Energy Management System (EMS) is a collection of software and hardware for monitoring, controlling, analyzing, and optimizing energy systems. It achieves efficient management and optimized energy allocation by providing real-time monitoring and smart control over each segment of energy production, distribution, and consumption.

[0388] Exemplary, the control module 30 is located within a first housing 3 and a second housing 4, and comprises two main control modules 301 for controlling the input or output of electrical energy to the energy units 2 within the first housing 3 and the second housing 4, respectively, and the two main control modules 301 are electrically connected to a total control module 303.

[0389] The main control module 301 is used to control the input and output of high-voltage electrical energy to the energy unit 2 within the housing 10.

[0390] Here, by installing the main control module 301 inside the first housing 3 and the second housing 4, the connection between the main control module 301 and the energy units 2 inside the first housing 3 and the second housing 4 is facilitated.

[0391] Exemplary, the control module 30 includes a total control module 303 located within a second housing.

[0392] The total control module 303 is used to control the opening and closing operation of the main control module 301 located within the housing 10.

[0393] Here, the total control module 303 is located within the second enclosure, making it easy to repair. Furthermore, the mating of one total control module 303 with two main control modules 301 is advantageous in saving space and reducing costs.

[0394] For example, the control module 30 is located within the first housing 3 or the second housing 4 and includes a fire suppression control module 304 for extinguishing the energy units 2 within the first housing 3 and the second housing 4.

[0395] Here, the first housing 3 and the second housing 4 are equipped with fire extinguishing sensors, fire extinguishing pipes, etc., and are used in combination with the fire extinguishing control module 304.

[0396] A single fire suppression control module 304 can suppress fires in the energy units 2 within the first enclosure 3 and the second enclosure 4, which is advantageous in saving space and reducing costs.

[0397] In some embodiments, referring to Figure 13, the control module 30 is installed inside the second housing 4 and is located on top of the multiple energy units 2 of the second housing 4.

[0398] In this embodiment, the control module 30 is installed inside the second housing 4 and positioned at the top of the multiple energy units 2 of the second housing 4. This ensures that the height of the operating section meets ergonomic requirements, allowing maintenance personnel to reach the control unit's operating handle while standing on one side of the housing 10, facilitating repairs and inspections. Simultaneously, the placement of the control room 12 at the top shortens the length of the high-voltage harness 51 and low-voltage harness 52 connecting it to the upper housing 10, thereby reducing costs. It also lowers the overall center of gravity of the single housing 10, improving transportation safety.

[0399] In some other embodiments, the control module 30 may be further installed on the bottom or side of the first housing 3 and / or on the bottom of the second housing 4 and / or on the top of the second housing 4.

[0400] In some embodiments, referring to Figure 4, at least some of the housings 10 are provided with a first connector 6 that is electrically connected to a control module 30, and each housing 10 is provided with a second connector 7 that is electrically connected to an energy unit 2, and the first connector 6 is used to mate with each of the second connectors 7.

[0401] The fact that at least some of the housings 10 are equipped with the first connector 6 means that some of the housings 10 may be equipped with the first connector 6 while other housings 10 are not, and all of the housings 10 may be equipped with the first connector 6.

[0402] To achieve mating between the first connector 6 and the second connector 7, the first connector 6 and the second connector 7 may be directly connected, for example, the first connector 6 may be inserted and mated into each of the second connectors 7. In this configuration, the first connector 6 may be fixed to the control room 12 and the second connectors 7 may be movably installed in the housing 10, or the first connector 6 may be movably installed in the control room 12 and the second connectors 7 may be fixedly installed in the housing 10, and the first connector 6 and the second connectors 7 may be movably installed in the control room 12 and the housing 10, respectively. The first connector 6 may be connected in a one-to-one correspondence with the second connectors 7 and may have multiple connection points to realize the connection between the first connector 6 and multiple second connectors 7.

[0403] For example, the first connector 6 is installed, for instance, on the first partition member 101 and / or the third partition member 103 of the control room 12.

[0404] The first connector 6 and the second connector 7 may be connected via a connecting member, which may be a cable. The first connector 6 and the second connector 7 may each be fixed to the housing 10, the first connector 6 may be fixed to the housing 10 and the second connector 7 may be movably installed on the housing 10, the first connector 6 may be movably installed on the housing 10 and the second connector 7 may be fixedly installed on the housing 10, and the first connector 6 and the second connector 7 may each be movably installed on the housing 10.

[0405] For example, the first connector 6 is fixed to the control room 12, and the two second connectors 7 are fixed to the two housings 10, with the first connector 6 and the second connectors 7 connected via a cable. The cable may be a quick-plug cable, with quick connectors at both ends, and the two quick connectors are connected to the first connector 6 and the second connectors 7, respectively.

[0406] In an embodiment in which the first connector 6 and the second connector 7 are connected via a cable, at least a portion of the cable may be drilled inside the housing 10, a portion of the cable may be brought out outside the housing 10, the interface of the first connector 6 may be outside the control room 12 and the entire cable may be outside the control room 12, and furthermore, the interface of the second connector 7 may be outside the housing 10 and the entire cable may be outside the housing 10.

[0407] In this embodiment, the mating of the first connector 6 with each of the second connectors 7 enables a rapid connection between the control module 30 and the energy unit 2, making the connection between the control module 30 and the energy unit 2 more convenient.

[0408] In some embodiments, referring to Figure 4, the energy storage device 100 comprises a plurality of battery devices 80, each battery device 80 comprising a thermal management member 82 for adjusting the temperature of the energy units 2, and a plurality of energy units 2. At least some of the housings 10 are provided with a third connector 8, each housing 10 is provided with a fourth connector 9, the third connector 8 communicates with a thermal management module 20, and the fourth connector 9 communicates with the thermal management member 82. The third connector 8 is used to mate with the fourth connector 9.

[0409] For example, the thermal management member 82 may be plate-shaped or tubular, and a flow path for heating or cooling the energy unit 2 by circulating a fluid is installed inside the thermal management member 82. The fluid may be a refrigerant or a coolant.

[0410] If the battery device 80 is a battery module, the thermal management member 82 may be the base plate, top plate, or side plate of the battery module, or it may be located between adjacent energy units 2.

[0411] If the battery device 80 is a battery pack, referring to Figure 18, the thermal management member 82 may be part of the case 81, or the thermal management member 82 may be located within the housing space of the case 81, and the thermal management member 82 may be located between adjacent energy units 2.

[0412] The fact that at least some of the housings 10 are equipped with the third connector 8 means that some of the housings 10 may be equipped with the third connector 8 while other housings 10 are not, and all of the housings 10 may be equipped with the third connector 8.

[0413] To achieve mating between the third connector 8 and the fourth connector 9, the third connector 8 and the fourth connector 9 may be directly connected, for example, the third connector 8 may be inserted and mated into each of the fourth connectors 9. In this configuration, the third connector 8 may be fixed to the control room 12 and the fourth connector 9 may be movably installed in the housing 10, or the third connector 8 may be movably installed in the control room 12 and the fourth connector 9 may be fixedly installed in the housing 10, and the third connector 8 and the fourth connector 9 may be movably installed in the control room 12 and the housing 10, respectively. The third connector 8 may be connected to the fourth connector 9 in a one-to-one correspondence and may have multiple connection points to enable communication between the third connector 8 and multiple fourth connectors 9.

[0414] For example, the third connector 8 is installed, for instance, on the first partition member 101 and / or the third partition member 103 of the control room 12.

[0415] The third connector 8 and the fourth connector 9 may be connected via a connecting member, which may be a conduit. The third connector 8 and the fourth connector 9 may be fixed to the control room 12 and the housing 10, respectively; the third connector 8 may be fixed to the control room 12 and the fourth connector 9 may be movably installed in the housing 10; the third connector 8 may be movably installed in the control room 12 and the fourth connector 9 may be fixedly installed in the housing 10; the third connector 8 and the fourth connector 9 may be movably installed to the control room 12 and the housing 10, respectively.

[0416] As an example, a third connector 8 is attached to the thermal management module 20, and a fourth connector 9 is attached to each housing 10, with the third connector 8 and the fourth connector 9 communicating via piping. The piping may be quick-plug piping, and each end of the piping has a quick fitting. The first connector 6 and the second connector 7 are also quick-plug fittings, and the two quick fittings at both ends of the piping are connected to the first connector 6 and the second connector 7, respectively.

[0417] In this embodiment, the mating of the third connector 8 and the fourth connector 9 enables rapid communication between the thermal management member 82 and the thermal management module 20, facilitating the installation of the thermal management module 20.

[0418] In some embodiments, the thermal management module 20 communicates with a plurality of thermal management members 82 via liquid cooling piping 90, the liquid cooling piping 90 comprising a main pipe 91 and a plurality of control pipes 92, the plurality of control pipes 92 connected in parallel to the main pipe 91, the main pipe 91 communicating with the thermal management module 20, the plurality of control pipes 92 communicating with each of the plurality of thermal management members 82, the main pipe 91 located above the plurality of battery devices 80, or the main pipe 91 located below the plurality of battery devices 80.

[0419] In an embodiment where the main piping 91 is located above multiple battery devices 80, the liquid coolant is advantageous for cooling the battery devices 80 by flowing from top to bottom through the main piping 91 to multiple control pipes 92.

[0420] In an embodiment where the main piping 91 is located below the multiple battery devices 80, the liquid coolant is advantageous for cooling the battery devices 80 by flowing from bottom to top through the main piping 91 to the multiple control pipes 92.

[0421] Exemplary, the energy storage device 100 comprises two housings 10 in which energy units 2 are housed, and the main piping 91 is located above the two housings 10, or below the two housings 10, or one main piping 91 is located above one housing 10 and the other main piping 91 is located below the other housing 10.

[0422] Here, the main piping 91 is installed above or below the multiple battery devices 80, which is advantageous for shortening the liquid cooling piping 90, thereby contributing to cost reduction and improved cooling efficiency.

[0423] In some embodiments, the energy unit 2 is a battery cell, and the weight of a single energy unit 2 is between 5 kg and 60 kg.

[0424] The weight of a single energy unit 2 may be any one of the following point values, or any two of the following points: 5kg, 10kg, 15kg, 20kg, 25kg, 30kg, 35kg, 40kg, 45kg, 50kg, 55kg, or 60kg. For example, the mass of one energy unit 2 is 30kg.

[0425] The energy unit 2 has an appropriate weight, which allows a suitable amount of energy units 2 to be placed inside the housing 10, and the energy density is appropriate to meet the transport requirements.

[0426] In some embodiments, the energy storage device 100 includes an energy storage chamber 100a, the energy storage chamber 100a comprises a housing 10 and components installed inside the housing 10, the weight of the energy storage chamber 100a is M, the total weight of the energy units 2 inside the housing 10 is M1, and (M1 / M) × 100% ≥ 60%.

[0427] For example, (M1 / M) × 100% could be 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 90%, etc.

[0428] Thus, on the one hand, it is possible to improve the weight ratio of the energy unit 2 in the housing 10 per unit volume and improve the amount of electricity in the energy storage device 100 per unit volume. On the other hand, in the transportation process of the energy storage device 100, the energy unit 2, which contributes more to the amount of energy stored during transportation and is relatively difficult to produce and cannot be completed at the destination, can be produced in a location relatively close to the destination without requiring or reducing transportation, and is advantageous in reducing the transportation cost of the assembled energy storage device 100 after the housing 10 has been assembled into the energy storage device 100.

[0429] In some examples, (M1 / M) × 100% ≥ 80%.

[0430] For example, (M1 / M) × 100% could be 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, or 90%, etc.

[0431] Thus, it is even more advantageous in reducing the transportation costs of the assembled energy storage device 100.

[0432] In some embodiments, the energy storage device 100 includes an energy storage chamber 100a, the energy storage chamber 100a comprises a housing 10 and components installed inside the housing 10, the weight of the energy storage chamber 100a is M, and a plurality of battery devices 80 are installed inside the housing 10, the battery device 80 comprises a case 81 and a plurality of energy units 2 housed in the case 81, the total weight of the battery device 80 is M2, and 70% ≤ (M2 / M) × 100% ≤ 90%.

[0433] (M2 / M)×100% may be any one of the following points: 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, or 90%, or any two of the following points.

[0434] If (M2 / M) × 100% ≥ 70%, the weight ratio of energy units 2 in the enclosure 10 per unit volume can be improved, thereby increasing the energy density of the enclosure 10. If (M2 / M) × 100% ≤ 90%, the structural strength of the enclosure 10 can be maintained. Therefore, if 70% ≤ (M2 / M) × 100% ≤ 90%, both the energy density of the energy storage chamber 100a and the structural strength of the enclosure 10 can be achieved, making the enclosure 10 more practical.

[0435] In some embodiments, the battery devices 80 may be arranged in a row, with the battery devices 80 in each row arranged along the length direction, and the battery devices 80 in each column arranged along the height direction, and each battery device 80 comprises a thermal management member 82 and a plurality of energy units 2. The housing 10 further comprises a third connector 8 and a plurality of fourth connectors 9, the third connector 8 communicating the thermal management module 20 to each of the fourth connectors 9, and each of the fourth connectors 9 communicating the thermal management members 82 of the plurality of battery devices 80 in one column.

[0436] For example, multiple battery devices 80 may be arranged in configurations such as 2 layers and 2 rows, 3 layers and 3 rows, 4 layers and 4 rows, 4 layers and 3 rows, and so on.

[0437] What should be explained is that the multiple battery devices 80 may be arranged in multiple rows, for example, 2, 3, 4, 5, or 6 rows, or in multiple columns, for example, 2, 3, 4, 5, or 6 columns.

[0438] In some embodiments, the volume of the housing 10 is V, the total volume of the energy unit 2 inside the housing 10 is V1, and (V1 / V) × 100% ≥ 30%.

[0439] The energy unit 2 comprises an outer casing, and the volume of the energy unit 2 is the volume of the outer casing. For example, the energy unit 2 is a rectangular shell energy unit 2, and the product of the length, width, and height of the rectangular shell energy unit 2 is the product of the length, width, and height of the outer casing.

[0440] In an embodiment in which the energy unit 2 further comprises electrode terminals, the electrode terminals are installed in an outer casing, with a portion protruding from the outer casing, and the electrode terminals are electrically connected to an electrode assembly. The portion of the electrode terminals protruding from the outer casing is not calculated as part of the volume of the energy unit 2.

[0441] (V1 / V) × 100% may be 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, 55%, 60%, 65%, or 70%, etc.

[0442] On the one hand, the volume ratio of energy units 2 in a unit volume enclosure 10 can be improved, thereby increasing the amount of electricity in a unit volume energy storage device 100. On the other hand, during the transportation process of the energy storage device 100, the energy units 2, which contribute more to the amount of energy stored and are relatively difficult to produce and cannot be completed at the destination, and other functional elements of the energy storage device 100, such as control elements, can be produced relatively close to the destination without needing to be transported or without reducing the amount of transported, and after the enclosure 10 is assembled into the energy storage device 100, it is advantageous to reduce the transportation cost of the assembled energy storage device 100.

[0443] In some examples, (V1 / V) × 100% ≥ 50%.

[0444] (V1 / V) × 100% may be 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 75%, 80%, 85%, or 90%, etc.

[0445] This is even more advantageous in reducing the transportation costs of the assembled and formed energy storage device 100.

[0446] In some embodiments, the volume of the housing 10 is V, multiple battery devices 80 are installed inside the housing 10, each battery device 80 comprises a case 81 and multiple energy units 2, the multiple energy units 2 are housed inside the case 81, the total volume of the battery device 80 is V2, and 50% ≤ (V2 / V) × 100% ≤ 80%.

[0447] The volume of the energy unit 2 is the volume of the case 81. For example, the case 81 has a rectangular parallelepiped structure, and the volume of the energy unit 2 is equal to the product of the length, width and height of the case 81.

[0448] (V2 / V)×100% may be any one point value selected from 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 75% and 80%, or a point value between any two of the foregoing values.

[0449] When (V2 / V)×100% ≧ 50%, the volume ratio of the energy unit 2 in the housing 10 per unit volume can be improved, and the energy density of the energy storage device 100 can be enhanced. When (V2 / V)×100% ≦ 80%, the housing 10 can be provided with structural members of sufficient volume to maintain the structural strength of the housing 10. Therefore, when 50% ≦ (V2 / V)×100% ≦ 80%, both the energy density of the energy storage device 100 and the structural strength of the housing 10 can be achieved, and the practicability of the housing 10 is further improved.

[0450] In some embodiments, referring to FIG. 6, the energy storage device 100 includes an energy storage chamber 100a, the energy storage chamber 100a includes one housing 10 and members disposed inside the housing 10, the energy of the energy storage chamber 100a is E, the dimension of the housing 10 along the length direction of the housing 10 is a, the dimension of the housing 10 along the width direction of the housing 10 is b, and 250KW / m 2 ≦E / (a×b)≦700KW / m 2 .

[0451] E / (a×b) is 250KW / m 2 , 300KW / m 2 , 350KW / m 2 , 400KW / m 2 , 450KW / m 2 , 460KW / m 2 , 470KW / m 2, 480KW / m 2 , 485KW / m 2 , 490KW / m 2 , 495KW / m 2 , 500KW / m 2 , 510KW / m 2 , 550KW / m 2 , 600KW / m 2 , 650KW / m 2 700KW / m 2 It may be any one of the point values ​​or a point value between any two of them.

[0452] Energy E can be obtained from the nameplate of the energy storage device 100.

[0453] E / (a×b)≧250KW / m 2 In this case, the energy storage device 100 can have a relatively large energy density, improving the practicality of the energy storage device 100, and E / (a×b) ≤ 700KW / m 2 In this case, the large mass of housing 10 reduces the risk of crushing other housings 10, and facilitates the transportation of housings 10. Therefore, 250KW / m 2 ≤E / (a×b)≤700KW / m 2 In this case, it is possible to achieve both the energy density of the energy storage device 100 and the mass setting of the housing 10, improving the practicality of the energy storage device 100 and also being advantageous for the transportation of the energy storage device 100.

[0454] In several examples, 450 kW / m 2 ≤E / (a×b)≤600KW / m 2 That is the case.

[0455] E / (a×b) is 450KW / m 2 , 455KW / m 2 , 460KW / m 2 , 465KW / m 2 , 470KW / m 2 , 475KW / m 2 , 480KW / m 2 , 485KW / m 2 , 490KW / m2 , 495KW / m 2 , 500KW / m 2 , 505KW / m 2 , 510KW / m 2 , 515KW / m 2 , 520KW / m 2 , 530KW / m 2 , 540KW / m 2 , 550KW / m 2 , 600KW / m 2 It may be any one of the point values ​​or a point value between any two of them.

[0456] For example, E / (a×b) = 490KW / m 2 This allows for further improvement of the energy density of the energy storage device 100 and the mass setting of the housing 10, thereby facilitating the transportation of the energy storage device 100.

[0457] In some embodiments, two adjacent housings 10 are connected along the height direction of the housing 10 by welding, locking, locking connections, or fastening members.

[0458] The fixing member may be at least one of bolts and nuts, pins, screws, or rivets. Of course, the fixing member may also include a fixing plate or the like to fix and connect two adjacent housings 10 along the height direction.

[0459] For example, two adjacent enclosures 10 are locked together by an intermediate twist lock.

[0460] By installing two adjacent housings 10 connected by a fixing member along the height direction, the fixing member can restrict the position of the two adjacent housings 10 along the height direction, which is advantageous in reducing the risk of the two adjacent housings 10 moving relative to each other after being stacked, and is even more advantageous in improving the structural stability of the energy storage device 100.

[0461] In some embodiments, referring to Figures 6 to 9 and Figure 15, the multiple housings 10 comprise a first housing 3 and a second housing 4, where the first housing 3 is located above the second housing 4, a position limiting pin 42 is installed at the bottom of the first housing 3, and a position limiting hole 411 is located at the top of the second housing 4, with the position limiting pin 42 engaged with the position limiting hole 411.

[0462] The housing 10 comprises a first housing 3 and a second housing 4, where the same housing 10 is the first housing 3 with respect to the lower housing 10 and the second housing 4 with respect to the upper housing 10; that is, one housing 10 may be either the first housing 3 or the second housing 4. In other words, a position limiting pin 42 may be installed at the bottom of one housing 10, and a position limiting hole 411 may be installed at its top.

[0463] In this way, two adjacent housings 10 along the height direction are fixed by the fitting of the position limiting pin 42 and the position limiting hole 411, achieving the objective of restricting the relative movement of the two adjacent housings 10 with a simple structure.

[0464] The position limiting hole 411 at the top of the second housing 4 may also be an opening for lifting the housing 10. In this way, during the lifting stage of the housing 10, the housing 10 is lifted using the opening, and after the lifting of the housing 10 is completed, the opening at the top of the housing 10 is used to engage with the position limiting pin 42 at the bottom of the adjacent upper housing 10, thereby achieving position limiting for the two adjacent housings 10. This is advantageous in simplifying the structure of the housing 10.

[0465] In some embodiments, referring to Figures 6 to 9 and Figure 15, a first position limiting member 31 is installed at the bottom of the first housing 3, and a position limiting groove 311 is installed in the first position limiting member 31. A second position limiting member 41 is installed at the top of the second housing 4, and a position limiting hole 411 is installed in the second position limiting member 41. Both ends of the position limiting pin 42 are engaged with the position limiting groove 311 and the position limiting hole 411, respectively.

[0466] The second position limiting member 41 may be the aforementioned lifting portion, and the position limiting hole 411 may be the aforementioned opening. The position limiting hole 411 may be a hole installed in the first housing 3.

[0467] In this embodiment, as the housings 10 are stacked along the height direction, the upper housing 10 of two adjacent housings 10 fits into the position restriction groove 311 via the position restriction pin 42, and the lower housing 10 of two adjacent housings 10 fits into the position restriction hole 411, thereby achieving the objective of restricting the relative movement of two adjacent housings 10 with a simple structure.

[0468] In this way, the manufacturing process can be easily simplified, and costs can be reduced.

[0469] Embodiments of the present disclosure provide an energy storage device 100 comprising a first housing 3, a second housing 4, a control module 30, a thermal management module 20, and a plurality of energy units 2, wherein the first housing 3 is located above the second housing 4, the second housing 4 comprises a main body 15, the first housing 3 comprises a main body 15 and a mounting portion 16 installed above the main body 15, the thermal management module 20 is housed in the mounting portion 16, and the main body 15 has an energy chamber 11 for housing at least one energy unit 2 and a control chamber 12 for housing at least a portion of the control module 30. The height dimensions of both the first housing 3 and the second housing 4 are at least half the height dimensions of a standard container and are both smaller than the height dimensions of a single standard container, and the sum of the height dimensions of the first housing 3 and the second housing 4 is greater than the height dimensions of a single standard container. The thermal management module 20 in the first housing 3 can control the temperature of multiple energy units 2 in the first housing 3 and multiple energy units 2 in the second housing 4. The control module 30 in the first housing 3 can electrically control multiple energy units 2 in the first housing 3, and the control module 30 in the second housing 4 can electrically control multiple energy units 2 in the second housing 4. By dividing the energy storage device 100 into the first housing 3 and the second housing 4, all components of the energy storage device 100 are housed in the first housing 3 and the second housing 4, respectively. In this way, the dimensions of the housing 10 are reduced, which reduces the total weight of the housing 10 to which components such as the energy units 2 are attached. This is advantageous in improving the problem of overloading during transport and reduces the transport cost of the energy storage device 100. After the first enclosure 3 and the second enclosure 4 are stacked along the height direction, the sum of the height dimensions of the first enclosure 3 and the second enclosure 4 is greater than the height dimension of a single standard container, and assuming it matches the transport weight, the electrical capacity of the energy storage device 100 can be increased as much as possible. On the other hand, this is advantageous in increasing the volume and electrical capacity of the energy storage device 100, and further reduces the operating cost of the energy storage device 100.By integrating all components of the energy storage device 100 inside the housing 10, the housings 10 can be stacked on-site and then connected to the PCS and EMS, which reduces the amount of on-site assembly work, improves assembly efficiency, and makes it easier for clients to use. Furthermore, by setting the height of at least one of the multiple housings 10 to differ from the height of the other housings 10, the flexibility of the housing capacity 10 is improved, making it easier to adapt to different needs. In addition, other components of the energy storage device 100, other than the energy units 2, can be housed in housings 10 with relatively large height dimensions. In this way, the energy units 2 housed in different housings 10 can be made nearly identical or completely identical, which is advantageous in improving the assembly efficiency of the energy units 2, reducing costs, and improving the uniformity of the electrical quantities in different housings 10, thereby improving the performance of the energy storage device 100.

[0470] The foregoing are merely preferred embodiments of the Disclosure and do not limit the Disclosure, and various modifications and changes are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the Disclosure should be included in the claims of the Disclosure.

Claims

1. An energy storage device, Multiple energy units, A plurality of housings arranged along the height direction of the energy storage device, which house the energy units, The system comprises a control module for electrically controlling the energy units within a plurality of housings, Of these, the dimension of at least one of the multiple housings along the height direction is different from the dimension of the other housings along the height direction. Energy storage device.

2. The height dimension of each enclosure is at least one-third of the height dimension of a standard container, and each is smaller than the height dimension of one of the standard containers. The energy storage device according to claim 1.

3. The dimensions of each enclosure along the height direction are all at least half of the dimensions of a standard container along the height direction, and all are smaller than the dimensions of one standard container along the height direction. The energy storage device according to claim 1.

4. The dimensions of each enclosure along the height direction are all at least one-third of the dimensions of the standard container along the height direction, and all are less than half of the dimensions of the standard container along the height direction. The energy storage device according to claim 1 or 2.

5. The sum of the dimensions of the multiple housings along the height direction is greater than the sum of the dimensions of one or more of the standard containers along the height direction. An energy storage device according to any one of claims 1 to 4.

6. The number of enclosures is m, and the sum of the dimensions along the height direction of m1 of the m enclosures is less than the sum of the dimensions along the height direction of n of the standard containers, and the sum of the dimensions along the height direction of m1+1 of the m enclosures is greater than the sum of the dimensions along the height direction of n of the standard containers, m is greater than m1, m is 2 or more, and m1 is 2 or more. An energy storage device according to any one of claims 1 to 5.

7. m1 = 1, n = 1, or m1 = 2, n = 1, or m1 = 2, n = 2. The energy storage device according to claim 6.

8. The height dimension of each enclosure is h, where 850 mm ≤ h < 2896 mm. An energy storage device according to any one of claims 1 to 7.

9. 1300 mm ≤ h ≤ 2400 mm. The energy storage device according to claim 8.

10. The dimensions of each housing along its length coincide with the dimensions of the standard container along its length, and the dimensions of each housing along its width coincide with the dimensions of the standard container along its width. An energy storage device according to any one of claims 1 to 9.

11. The height of the other housings, excluding the housing at the very top, is the same. An energy storage device according to any one of claims 1 to 10.

12. The energy storage device comprises a thermal management module, the housing consists of m units, and the thermal management module is used to manage the temperature of the multiple energy units in the m housings. An energy storage device according to any one of claims 1 to 11.

13. The plurality of housings comprises one first housing and at least one second housing, wherein the first housing is located above the second housing, and the thermal management module is located inside the first housing. The energy storage device according to claim 12.

14. The height of the first enclosure is greater than the height of the second enclosure. The energy storage device according to claim 13.

15. The thermal management module comprises a blower and a condenser, the blower and the condenser being located at the top of the first housing, and ventilation openings for ventilation of the thermal management module are provided in the top wall and / or side wall of the first housing. The energy storage device according to claim 13 or 14.

16. The plurality of housings comprises one first housing and at least one second housing, wherein the first housing is located above the second housing, and the control module comprises a total control module located within the second housing. An energy storage device according to any one of claims 1 to 12.

17. The control module comprises two main control modules, each located within the first and second housings, and used to control the input or output of electrical energy to the energy units within the first and second housings, respectively, and both are electrically connected to the total control module. The energy storage device according to claim 16.

18. The control module comprises a fire extinguishing control module, which is located within the first housing or the second housing and is used to extinguish the energy units within the first housing and the second housing. The energy storage device according to claim 16 or 17.

19. The energy storage device comprises a power conversion system, the power conversion system is housed in the first enclosure or the second enclosure, and the power conversion system is electrically connected to the energy units in the first enclosure and the second enclosure. An energy storage device according to any one of claims 1 to 12.

20. At least some of the housings are provided with a first connector electrically connected to the control module, each housing is provided with a second connector electrically connected to a plurality of energy units, and the first connector is used to mate with each of the second connectors. An energy storage device according to any one of claims 1 to 12.

21. The energy storage device comprises a plurality of battery devices, each of which comprises a thermal management member and a plurality of energy units, the thermal management member being used to adjust the temperature of the energy units. At least some of the housings are provided with a third connector, each housing is provided with a fourth connector, the third connector communicates with the thermal management module, the fourth connector communicates with the thermal management member, and the third connector is used to mate with each of the fourth connectors. An energy storage device according to any one of claims 12 to 15.

22. The thermal management module communicates with a plurality of thermal management members via liquid cooling piping, the liquid cooling piping comprises a main pipe and a plurality of control pipes, the plurality of control pipes are connected in parallel to the main pipe, the main pipe communicates with the thermal management module, the plurality of control pipes communicate with each of the plurality of thermal management members, the main pipe is located above the plurality of battery devices, or the main pipe is located below the plurality of battery devices. The energy storage device according to claim 21.

23. The energy unit is a battery cell, and the weight of a single energy unit is between 5 kg and 60 kg. An energy storage device according to any one of claims 1 to 22.

24. The energy storage device comprises an energy storage chamber, the energy storage chamber comprises one housing and components installed inside the housing, the weight of the energy storage chamber is M, and M is 35 tons or less. An energy storage device according to any one of claims 1 to 23.

25. The energy storage device comprises an energy storage chamber, the energy storage chamber comprises one housing and a component installed inside the housing, the weight of the energy storage chamber is M, the total weight of the energy units inside the housing is M1, and (M1 / M) × 100% ≥ 60%. An energy storage device according to any one of claims 1 to 24.

26. (M1 / M) × 100% ≥ 80% The energy storage device according to claim 25.

27. The energy storage device comprises an energy storage chamber, the energy storage chamber comprises one housing and a component installed inside the housing, the weight of the energy storage chamber is M, a plurality of battery devices are installed inside the housing, the battery device comprises a case and a plurality of energy units, the plurality of energy units are housed inside the case, the total weight of the battery device is M2, and 70% ≤ (M2 / M) × 100% ≤ 90%. An energy storage device according to any one of claims 1 to 26.

28. The volume of the enclosure is V, the total volume of the energy unit inside the enclosure is V1, and (V1 / V) × 100% ≥ 30%. An energy storage device according to any one of claims 1 to 27.

29. (V1 / V) × 100% ≥ 50% The energy storage device according to claim 28.

30. The volume of the housing is V, and a plurality of battery devices are installed inside the housing. Each battery device comprises a case and a plurality of energy units housed in the case. The total volume of the battery devices is V2, and 50% ≤ (V2 / V) × 100% ≤ 80%. An energy storage device according to any one of claims 1 to 29.

31. The energy storage device comprises an energy storage chamber, the energy storage chamber comprises one housing and a member installed inside the housing, the energy of the energy storage chamber is E, the dimension of the housing along the length direction of the housing is a, the dimension of the housing along the width direction of the housing is b, and the energy is 250 kW / m ２ ≦E / (a×b)≦700KW / m ２ That is, An energy storage device according to any one of claims 1 to 30.

32. 450 kW / m ２ ≦E / (a×b)≦600KW / m ２ That is, The energy storage device according to claim 31.

33. Along the height direction of the housing, two adjacent housings are connected by welding, fastening, locking connections, or fixing members. An energy storage device according to any one of claims 1 to 32.

34. The plurality of housings comprises a first housing and a second housing, the first housing being located above the second housing, a position limiting pin being installed at the bottom of the first housing, and a position limiting hole being located at the top of the second housing, the position limiting pin being engaged with the position limiting hole. An energy storage device according to any one of claims 1 to 33.

35. A first position limiting member is installed at the bottom of the first housing, a position limiting groove is installed in the first position limiting member, a second position limiting member is installed at the top of the second housing, the position limiting hole is installed in the second position limiting member, and both ends of the position limiting pin are engaged with the position limiting groove and the position limiting hole, respectively. The energy storage device according to claim 34.

36. The enclosure comprises m units, and the energy storage device further comprises a connection mechanism arranged to connect two adjacent enclosures along the height direction of the enclosure. The connection mechanism includes a support member installed between two adjacent housings along the height direction, wherein the sum of the dimensions along the height direction of m1 of the housings and the sum of the dimensions along the height direction of m1-1 support members is less than the sum of the dimensions along the height direction of n standard containers, and the sum of the dimensions along the height direction of m1+1 of the housings and the sum of the dimensions along the height direction of m1 support members is greater than the sum of the dimensions along the height direction of n standard containers. An energy storage device according to any one of claims 1 to 35.

37. The standard container is a 20-foot standard container, and the height of the standard container is 2896 mm, 2591 mm, or 2438 mm. An energy storage device according to any one of claims 1 to 36.

38. At least a portion of the enclosure has an energy chamber and a control chamber, the energy chamber is used to house at least one of the energy units, at least a portion of the control module and / or at least a portion of the thermal management module are housed in the control chamber, a first door is provided on at least one side along the width direction of the enclosure, and a second door is provided on at least one side along the width direction of the control chamber and / or the piping chamber. An energy storage device according to any one of claims 12 to 15.

39. An energy storage system, The power converter comprises a power generation device and the energy storage device for electrically connecting them, and the energy storage device according to any one of claims 1 to 38. Energy storage system.

40. It is a charging network, The device comprises a charging stand and an energy storage device according to any one of claims 1 to 38 or an energy storage system according to claim 39 for supplying electrical energy to the charging stand. Charging network.

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