Solid-state battery cell with good safety performance and energy storage equipment

Abstract

The invention discloses a solid-state battery cell with good safety performance and energy storage equipment, and relates to the technical field of solid-state batteries. The two positioning plates are mounted on two sides of the inner wall of the battery inner shell; the multiple clamping grooves are formed in the opposite faces of the two positioning plates respectively; the plurality of battery assemblies are respectively arranged between the two corresponding clamping grooves; the plurality of isolation pads are mounted between the opposite surfaces of the two positioning plates; the battery assembly comprises a battery cell body, a buffer sleeve, two elastic sheets and two avoiding openings; the honeycomb silica gel buffer layer is arranged on the side surface of the cell body, the lateral impact force is dispersed by utilizing a honeycomb structure, and the corrugated titanium alloy elastic sheet is attached to the end surface of the cell to adapt to the axial thermal expansion and cold contraction deformation during charging and discharging, so that the impact resistance problem of the brittle electrolyte can be solved in a targeted manner; meanwhile, effective adaptation and protection are realized according to stress differences of different parts of the battery cell, the protection effect is enhanced, and the electrolyte breakage rate is remarkably reduced.

Description

Technical Field

[0001] This invention relates to the field of solid-state battery technology, specifically to a solid-state battery cell with good safety performance and an energy storage device. Background Technology

[0002] Solid-state batteries are a battery technology distinct from the commonly used lithium-ion and lithium-ion polymer batteries. Their core feature is the use of solid electrodes and solid electrolytes. Traditional lithium-ion and lithium-ion polymer batteries rely on liquid electrolytes as ion transport media. However, liquid electrolytes have safety hazards such as easy leakage, volatility, and poor thermal stability. Under extreme conditions such as high temperature, overcharging, and short circuits, they can easily cause thermal runaway, leading to serious safety accidents such as fires or even explosions. In contrast, the solid electrolytes in solid-state batteries are non-flammable, non-corrosive, and non-volatile, fundamentally eliminating the safety risks associated with liquid electrolytes and significantly improving the safety performance of solid-state batteries.

[0003] Chinese patent CN221304861U discloses a solid-state battery cell with good safety performance and an energy storage device. It is equipped with a slot to improve the stability of the cell body installation, an inner shell to protect the cell body, and a temperature sensor to detect the temperature of the cell body surface. When the temperature of the cell body surface exceeds its maximum preset value, the solenoid valve is automatically opened, so that the high-pressure carbon dioxide gas in the high-pressure carbon dioxide gas storage tank enters the outer shell through the gas outlet pipe to achieve the purpose of automatic fire extinguishing.

[0004] The ceramic electrolyte used in existing solid-state batteries has significant brittleness. During transportation, assembly, and vibration caused by equipment start-up and shutdown, it is very easy to crack due to impact. The traditional single buffer pad protection method is not effective and cannot effectively adapt to and protect different parts of the battery cell from different stress conditions. Summary of the Invention

[0005] The purpose of this invention is to provide a solid-state battery cell with good safety performance and an energy storage device to solve the problem that the ceramic electrolyte in existing solid-state batteries is prone to cracking due to vibration and impact during transportation because of its brittle nature.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a solid-state battery cell with good safety performance, comprising a battery inner shell;

[0007] Two positioning plates are installed on both sides of the inner wall of the battery inner shell;

[0008] Multiple slots are respectively opened on the opposite sides of the two positioning plates;

[0009] Multiple battery components are installed between two corresponding card slots;

[0010] Multiple isolation pads are installed between the opposite surfaces of the two positioning plates;

[0011] The battery assembly includes a cell body, a buffer sleeve, two elastic plates, and two clearance openings. The cell body is placed inside the inner shell of the battery, the buffer sleeve is installed on the outer wall of the cell body, the two elastic plates are respectively installed at both ends of the cell body, and the two clearance openings are both opened at one end of the elastic plate on the right side.

[0012] Furthermore, the buffer sleeve includes an outer buffer layer, an inner buffer layer, multiple optical fiber sensors, and multiple metal wires. The inner buffer layer is installed on the inner wall of the outer buffer layer, and the inner wall of the inner buffer layer is fixedly installed with the outer wall of the battery cell body. The multiple optical fiber sensors are embedded between the outer buffer layer and the inner buffer layer, and the multiple metal wires are embedded inside the outer buffer layer.

[0013] Furthermore, the multiple battery components and multiple insulating pads are distributed in an alternating manner. The insulating pads are made of rubber open-cell foam material, the buffer sleeve adopts a rectangular frame integrated structure, and the elastic sheet is made of corrugated titanium alloy material.

[0014] Furthermore, both the outer and inner buffer layers are configured as honeycomb silicone structures. The honeycomb size of the outer buffer layer is larger than that of the inner buffer layer, and their honeycomb directions are orthogonal. The outer buffer layer uses high-hardness silicone, and the inner buffer layer uses low-hardness silicone. Multiple optical fiber sensors are evenly distributed along the four sides of the buffer sleeve.

[0015] An energy storage device further includes: an energy storage housing;

[0016] Multiple shock-absorbing mechanisms are installed on the top and bottom inner walls of the energy storage shell. A heat dissipation mechanism is installed between the tops of the multiple shock-absorbing mechanisms on the lower side. Two ventilation holes are opened on both sides of the top and bottom inner walls of the energy storage shell. Dustproof nets are installed inside the four ventilation holes. Cooling fans are installed on both sides of the top of the energy storage shell. Multiple battery inner shells are provided and are respectively installed at the bottom of the multiple shock-absorbing mechanisms on the upper side. Heat sinks are installed at both ends of the multiple battery inner shells. Temperature and humidity sensors are installed on both sides of the inner walls of the energy storage shell. A protective frame and a controller are installed at one end of the energy storage shell, and the controller is located inside the protective frame. A protective top frame is installed on the top of the energy storage shell. Two solar panels are installed on the top of the protective top frame. A supporting base frame is installed at the bottom of the energy storage shell.

[0017] Furthermore, the shock absorption mechanism includes two shock absorption plates, multiple shock absorbers, two support frames, multiple mounting slots, multiple drying plates, and multiple shock absorption springs. The opposite sides of the two shock absorption plates are respectively installed on the bottom inner wall of the energy storage shell and the bottom end of the heat dissipation mechanism. The multiple shock absorbers are respectively installed at the four corners of the opposite sides of the two shock absorption plates. The two support frames are respectively installed in the middle of the opposite sides of the two shock absorption plates. The multiple mounting slots are respectively opened on the inner walls of the two sides of the two support frames. The multiple drying plates are respectively installed between two corresponding mounting slots. The multiple shock absorption springs are all installed between the opposite sides of the two support frames.

[0018] Furthermore, the heat dissipation mechanism includes a water storage tank, a cooling mechanism, two water inlet pipes, a semiconductor cooling chip, and multiple ventilation pipes. The water storage tank is installed between the tops of multiple shock-absorbing mechanisms on the lower side, the cooling mechanism is installed at the top of the water storage tank, the two water inlet pipes are respectively installed on both sides of the top of the water storage tank, the semiconductor cooling chip is installed in the middle of the bottom inner wall of the water storage tank, and the two ends of the multiple ventilation pipes pass through the inner walls of both sides of the water storage tank and are embedded in the tank.

[0019] Furthermore, the cooling mechanism includes a water pump, a distribution pipe, multiple cooling pipes, and multiple heat-conducting plates. The water pump is installed on the bottom inner wall of the water storage tank, the distribution pipe is installed at the top of the water pump, and the top of the distribution pipe penetrates the top inner wall of the water storage tank. The multiple cooling pipes are all installed at the top of the distribution pipe, and the other ends of the multiple cooling pipes all penetrate the top inner wall of the water storage tank. The multiple heat-conducting plates are respectively inserted and installed on the outer wall of the multiple cooling pipes.

[0020] Furthermore, the cooling fan is located directly above the corresponding ventilation hole, the temperature and humidity sensor and the cooling fan are both electrically connected to the controller, the top of the protective top frame is set with an inverted V-shaped structure, and the solar panel is electrically connected to the battery module composed of the battery cell body through the charging control module.

[0021] Furthermore, the water pump and the semiconductor cooling chip are both electrically connected to the controller, the cooling pipe is configured as a serpentine pipe, the heat-conducting plate is installed between the opposite surfaces of two adjacent heat sinks, and a sealing ring is provided at the connection between the ventilation pipe and the water storage tank.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] (1) The present invention utilizes the coordinated work of the battery cell body, buffer sleeve, elastic sheet and clearance opening to set a honeycomb silicone buffer layer on the side of the battery cell body, and uses the honeycomb structure to disperse the lateral impact force. A corrugated titanium alloy elastic sheet is attached to the end face of the battery cell to adapt to the axial thermal expansion and contraction deformation during charging and discharging. This can specifically solve the impact resistance problem of brittle electrolytes. At the same time, it can effectively adapt and protect against the force differences in different parts of the battery cell, strengthen the protection effect, and significantly reduce the electrolyte breakage rate.

[0024] (2) The present invention utilizes the synergistic work of shock-absorbing plates, shock absorbers, support frames, mounting grooves, drying plates and shock-absorbing springs. The shock absorbers arranged at the four corners form a primary buffer, and the two support frames set in the middle and the multiple drying plates installed inside enhance the structural stability and achieve moisture-proof function by absorbing moisture. In addition, multiple shock-absorbing springs form a secondary buffer, effectively absorbing multi-directional vibration energy during transportation and operation, while continuously maintaining the dryness of the working environment of the battery module.

[0025] (3) The present invention utilizes the coordinated operation of a water storage tank, a cooling mechanism, a water inlet pipe, a semiconductor cooling chip, and a ventilation pipe. The semiconductor cooling chip actively cools the cooling water in the water storage tank. The cooling mechanism is driven by a water pump to deliver the cooling water to the serpentine cooling pipe. The heat exchange efficiency is enhanced by a heat-conducting plate. The ventilation pipe runs through both sides of the water storage tank to form an air convection channel. It efficiently absorbs the heat of the battery pack through the circulation of liquid cooling medium and accelerates the discharge of hot air by air cooling, thereby achieving efficient temperature control of the battery pack. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 A structural cross-sectional view of the energy storage casing is provided for embodiments of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0029] Figure 3 A structural cross-sectional view of the battery inner casing is provided for embodiments of the present invention;

[0030] Figure 4 An exploded view of the battery assembly structure is provided for embodiments of the present invention;

[0031] Figure 5 A structural layer diagram of the buffer sleeve is provided for embodiments of the present invention;

[0032] Figure 6 A structural schematic diagram of the shock absorption mechanism is provided for embodiments of the present invention;

[0033] Figure 7 A structural cross-sectional view of the heat dissipation mechanism is provided for embodiments of the present invention;

[0034] Figure 8 A structural cross-sectional view of the cooling mechanism is provided for an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Energy storage outer shell; 2. Battery inner shell; 3. Positioning plate; 4. Card slot; 5. Battery assembly; 6. Insulation pad; 7. Shock absorption mechanism; 8. Heat dissipation mechanism; 9. Ventilation hole; 10. Dustproof net; 11. Cooling fan; 12. Heat sink; 13. Temperature and humidity sensor; 14. Protective frame; 15. Controller; 16. Protective top frame; 17. Solar panel; 18. Support base frame; 51. Battery cell body; 52. Buffer sleeve; 53. Elastic sheet; 54. 521. Buffer opening; 522. Inner buffer layer; 523. Fiber optic sensor; 524. Metal wire; 71. Shock absorber plate; 72. Shock absorber; 73. Support frame; 74. Mounting slot; 75. Drying plate; 76. Shock absorber spring; 81. Water tank; 82. Cooling mechanism; 83. Water inlet pipe; 84. Semiconductor cooling chip; 85. Ventilation pipe; 821. Water pump; 822. Diverter pipe; 823. Cooling pipe; 824. Heat conduction plate. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] As attached Figure 1 To be continued Figure 8 As shown:

[0039] Example 1:

[0040] This invention provides a solid-state battery cell with good safety performance, including a battery inner shell 2, the inner wall of which is coated with a ceramic insulating coating;

[0041] Two positioning plates 3 are installed on both sides of the inner wall of the battery inner shell 2. The positioning plates 3 are made of aluminum alloy honeycomb panel material.

[0042] Multiple slots 4 are respectively opened on the opposite sides of the two positioning plates 3 to ensure the stable installation of the battery assembly 5, and thermally conductive silicone pads are provided in the slots 4.

[0043] Multiple battery components 5 are installed between two corresponding slots 4, and are the core energy storage units of the battery cell.

[0044] Multiple isolation pads 6 are installed between the opposite surfaces of the two positioning plates 3 to provide electrical isolation and physical buffering between battery modules;

[0045] The battery assembly 5 includes a cell body 51, a buffer sleeve 52, two elastic sheets 53 and two clearance openings 54. The cell body 51 is placed inside the inner shell 2 of the battery. The buffer sleeve 52 is installed on the outer wall of the cell body 51 to provide side cushioning. The two elastic sheets 53 are respectively installed at both ends of the cell body 51 to adapt to deformation during charging and discharging. The two clearance openings 54 are both opened at one end of the elastic sheet 53 on the right side to facilitate wiring and assembly.

[0046] The buffer sleeve 52 includes an outer buffer layer 521, an inner buffer layer 522, multiple fiber optic sensors 523, and multiple metal wires 524. The inner buffer layer 522 is installed on the inner wall of the outer buffer layer 521, and the inner wall of the inner buffer layer 522 is fixedly installed with the outer wall of the battery cell body 51 to provide tight protection. The multiple fiber optic sensors 523 are embedded between the outer buffer layer 521 and the inner buffer layer 522 to monitor the deformation of the buffer structure in real time. When the deformation exceeds the threshold, an early warning can be triggered. The multiple metal wires 524 are embedded inside the outer buffer layer 521 to enhance the structural strength of the outer buffer layer 521.

[0047] Multiple battery modules 5 and multiple insulating pads 6 are staggered to ensure a safe distance and heat dissipation space between battery modules. The insulating pads 6 are made of rubber open-cell foam material, which provides good insulation, cushioning and breathability. The buffer sleeve 52 adopts a rectangular frame integrated structure, which is convenient for installation and maintenance. The elastic sheet 53 is made of corrugated titanium alloy material, which can adapt to axial thermal expansion and contraction deformation during charging and discharging, and at the same time provides excellent fatigue resistance.

[0048] Both the outer buffer layer 521 and the inner buffer layer 522 are designed with a honeycomb silicone structure. The mechanical advantages of the honeycomb structure are used to disperse the impact force. The honeycomb size of the outer buffer layer 521 is larger than that of the inner buffer layer 522, forming a gradient buffer effect. The honeycomb directions of the two are orthogonal, forming a three-dimensional buffer network to enhance multi-directional impact resistance. The outer buffer layer 521 is made of high-hardness silicone to provide macroscopic impact protection, while the inner buffer layer 522 is made of low-hardness silicone to absorb microscopic vibrations. Multiple fiber optic sensors 523 are evenly distributed along the four sides of the buffer sleeve 52 to ensure all-round deformation monitoring.

[0049] Working principle: The inner shell 2 of the battery provides a closed protective space for the overall structure. The positioning plate 3, through multiple slots 4, limits and fixes multiple battery components 5 to ensure that the battery components 5 do not shift horizontally during use or transportation. At the same time, multiple isolation pads 6 are distributed intermittently with multiple battery components 5. The isolation pads 6 are made of rubber open-pore foam material with both cushioning and shock absorption and ventilation and heat dissipation functions. This not only avoids direct collision between adjacent battery components 5, but also provides a channel for heat dissipation when the cell body 51 is working. In each battery component 5, the buffer sleeve 52 tightly wraps around the cell body 51. On the outer wall, the outer buffer layer 521 adopts a high-hardness honeycomb silicone structure, and the inner buffer layer 522 adopts a low-hardness honeycomb silicone structure. The honeycomb pore size of the outer buffer layer 521 is larger than that of the inner buffer layer 522, and the honeycomb directions of the two are orthogonal, forming a three-dimensional buffer network. When subjected to external impact, the outer buffer layer 521 first resists the strong impact through the high-hardness honeycomb structure, and the inner buffer layer 522 then absorbs the residual vibration through the low-hardness honeycomb structure. The three-dimensional support characteristics of the orthogonal honeycomb structure disperse the lateral impact force. At the same time, multiple metal wires 52 are embedded inside the outer buffer layer 521. 4. To further enhance the structural strength of the buffer sleeve 52 and prevent excessive deformation of the outer buffer layer 521, multiple fiber optic sensors 523 are embedded between the outer buffer layer 521 and the inner buffer layer 522 to monitor the deformation state of the buffer sleeve 52 in real time. When the deformation exceeds a preset threshold, an early warning is triggered, providing timely feedback on impact or stress changes and data support for safety warnings. The corrugated titanium alloy elastic sheets 53 installed at both ends of the cell body 51 can adapt to the thermal expansion and contraction deformation of the cell body 51 during charging and discharging, avoiding cell damage caused by rigid constraints. Two openings are made at one end of the right elastic sheet 53. The 54 clearance openings provide space for the cell tabs or connecting wires to prevent damage from compression. Ultimately, through the synergistic effect of various components, the impact resistance, vibration resistance, and safety monitoring capabilities of solid-state batteries are comprehensively improved while ensuring the normal operation of the cells. This not only addresses the impact resistance issues of brittle electrolytes but also achieves precise adaptation and protection based on the stress differences in different parts of the cell. Especially during transportation, assembly, and vibration environments generated by equipment start-up and shutdown, it can effectively prevent the ceramic electrolyte in the battery cell from cracking due to impact, thereby enhancing the protective effect and significantly reducing the electrolyte breakage rate.

[0050] Example 2:

[0051] An energy storage device, this embodiment is basically the same as the previous embodiment, except that it further includes:

[0052] The energy storage outer shell 1 serves as the overall protective structure for the energy storage device, providing robust support and protection.

[0053] Multiple shock-absorbing mechanisms 7 are installed on the top and bottom inner walls of the energy storage casing 1. A heat dissipation mechanism 8 is installed between the tops of the multiple shock-absorbing mechanisms 7 on the lower side, providing shock absorption and heat dissipation functions during equipment operation. Two ventilation holes 9 are opened on both sides of the top and bottom inner walls of the energy storage casing 1. Dustproof nets 10 are installed inside the four ventilation holes 9 to ensure air circulation and prevent dust from entering. Cooling fans 11 are installed on both sides of the top of the energy storage casing 1 to accelerate the discharge of hot air and maintain the internal temperature balance of the equipment. Multiple battery inner shells 2 are provided and are respectively installed at the bottom of the multiple shock-absorbing mechanisms 7 on the upper side. Multiple batteries Heat sinks 12 are installed at both ends of the inner shell 2 to improve the heat dissipation efficiency of the battery pack. Temperature and humidity sensors 13 are installed on both inner walls of the energy storage outer shell 1. A protective frame 14 and a controller 15 are installed at one end of the energy storage outer shell 1 to monitor environmental data in real time and automatically adjust the equipment operating status. The controller 15 is located inside the protective frame 14. A protective top frame 16 is installed at the top of the energy storage outer shell 1. Two solar panels 17 are installed at the top of the protective top frame 16 to provide additional protection and light energy conversion functions. A support base frame 18 is installed at the bottom of the energy storage outer shell 1 to provide a stable support foundation and effective ventilation.

[0054] The shock absorption mechanism 7 includes two shock absorption plates 71, multiple shock absorbers 72, two support frames 73, multiple mounting slots 74, multiple drying plates 75, and multiple shock absorption springs 76. The opposite sides of the two shock absorption plates 71 are respectively installed on the bottom inner wall of the energy storage shell 1 and the bottom end of the heat dissipation mechanism 8. The multiple shock absorbers 72 are respectively installed at the four corners of the opposite sides of the two shock absorption plates 71 to provide initial shock absorption. The two support frames 73 are respectively installed in the middle of the opposite sides of the two shock absorption plates 71. The multiple mounting slots 74 are respectively opened on the inner walls of the two sides of the two support frames 73. The multiple drying plates 75 are respectively installed between the corresponding two mounting slots 74 to maintain a dry environment inside the equipment and prevent condensation and corrosion. The multiple shock absorption springs 76 are all installed between the opposite sides of the two support frames 73 to provide additional elastic cushioning.

[0055] The cooling fan 11 is located directly above the corresponding ventilation hole 9 to ensure that hot air is discharged smoothly. The temperature and humidity sensor 13 and the cooling fan 11 are both electrically connected to the controller 15 to monitor environmental data in real time and automatically adjust the fan speed to maintain the internal temperature and humidity balance of the equipment. The top of the protective top frame 16 is set with an inverted V-shaped structure to facilitate rainwater drainage and prevent water accumulation. The solar panel 17 is electrically connected to the battery module composed of the battery cell body 51 through the charging control module to realize light energy conversion and electrical energy storage.

[0056] Working principle: The energy storage shell 1 provides outer protection for the entire device. The bottom support frame 18 ensures the stability of the device and ensures good ventilation. The top protective frame 16 adopts an inverted V-shaped structure, which not only provides a mounting carrier for the two solar panels 17, but also guides rainwater flow to avoid water accumulation and erosion. The solar panels 17 convert light energy into electrical energy through the charging control module and stably deliver it to the battery module composed of the cell body 51 to achieve photovoltaic energy supplementation and improve the device's endurance. In the shock absorption mechanism 7, the shock absorber 72 forms a primary buffer, and together with multiple shock-absorbing springs 76, it forms a secondary buffer, forming a double shock absorption structure, which can effectively absorb multi-directional vibration energy during the transportation or use of the device and prevent damage to the battery module 5. The two support frames 73 set in the middle not only enhance the structural stability of the shock absorption mechanism 7, but also the multiple drying plates 75 installed inside can absorb the energy storage external... The moisture inside the casing 1 is kept dry to prevent the battery cell 51 from getting damp. At the same time, the temperature and humidity sensors 13 on both sides of the inner wall of the energy storage casing 1 monitor the internal temperature and humidity data in real time and transmit the signals to the controller 15 in the protective frame 14. When the temperature exceeds the preset threshold, the controller 15 starts the cooling fans 11 on both sides of the top of the energy storage casing 1. The cooling fans 11 are set with ventilation holes 9 and work with the dustproof net 10 in the ventilation holes 9 to achieve air circulation. At the same time, the heat sinks 12 at both ends of the battery inner casing 2 quickly conduct the heat generated by the operation of the battery cell 51 and carry away the heat through airflow, forming an intelligent heat dissipation system that combines conductive heat dissipation and forced air cooling. Ultimately, this ensures the stability of the internal environment of the equipment, thereby improving the energy storage equipment's resistance to vibration, resistance to harsh environments, and energy utilization efficiency, achieving long-term stable operation, and significantly enhancing its reliability under complex working conditions.

[0057] Example 3:

[0058] An energy storage device, this embodiment is basically the same as the previous embodiment, the difference being that the heat dissipation mechanism 8 includes a water tank 81, a cooling mechanism 82, two water inlet pipes 83, a semiconductor cooling chip 84, and multiple ventilation pipes 85. The water tank 81 is installed between the tops of multiple shock-absorbing mechanisms 7 on the lower side, providing a basis for cooling water storage and circulation. The cooling mechanism 82 is installed on the top of the water tank 81, responsible for the circulation and heat exchange of the cooling water. The two water inlet pipes 83 are respectively installed on both sides of the top of the water tank 81. The semiconductor cooling chip 84 is installed in the middle of the bottom inner wall of the water tank 81 to continuously cool the cooling water and improve heat dissipation efficiency. The two ends of the multiple ventilation pipes 85 pass through the inner walls of both sides of the water tank 81 and are embedded, accelerating the discharge of hot air from the surface of the cooling water and also enabling the circulation of air inside the energy storage shell 1.

[0059] The cooling mechanism 82 includes a water pump 821, a distribution pipe 822, multiple cooling pipes 823, and multiple heat-conducting plates 824. The water pump 821 is installed on the bottom inner wall of the water storage tank 81 and is responsible for delivering low-temperature cooling water to the cooling pipes 823. The distribution pipe 822 is installed at the top of the water pump 821, and the top of the distribution pipe 822 penetrates the top inner wall of the water storage tank 81. The multiple cooling pipes 823 are all installed at the top of the distribution pipe 822, and the other end of the multiple cooling pipes 823 penetrates the top inner wall of the water storage tank 81, forming a cooling water circulation path. The multiple heat-conducting plates 824 are respectively inserted and installed on the outer wall of the multiple cooling pipes 823. The heat-conducting plates 824 are made of copper, and the surface of the heat-conducting plates 824 is coated with thermal grease and closely adheres to the heat sink 12, which can improve heat exchange efficiency and quickly conduct the heat of the battery pack to the cooling water.

[0060] Both the water pump 821 and the semiconductor cooling chip 84 are electrically connected to the controller 15. The cooling water flow and cooling power are dynamically adjusted according to the feedback data of the temperature and humidity sensor 13. The cooling pipe 823 is set as a serpentine pipe to increase the heat exchange area and improve the heat exchange efficiency. The heat conduction plate 824 is installed between the opposite surfaces of two adjacent heat sinks 12 to form an efficient heat conduction channel, which quickly transfers the heat of the battery pack to the cooling pipe 823. A sealing ring is provided at the connection between the ventilation pipe 85 and the water storage tank 81 to prevent cooling water leakage and ensure stable operation of the system.

[0061] Working principle: The water tank 81 is replenished with coolant through the inlet pipe 83. The semiconductor cooling chip 84 is activated by the controller 15 to continuously reduce the temperature of the coolant in the tank. The water pump 821 pumps the cooled coolant into the distribution pipe 822, which then distributes it to multiple serpentine cooling pipes 823. Multiple heat-conducting plates 824, which are installed on the outer wall of the cooling pipes 823, are tightly attached to the opposite surfaces of the heat sinks 12 at both ends of the adjacent battery inner shell 2, quickly conducting the heat generated by the cell body 51 during operation. The heat is then carried away by the coolant in the cooling pipes 823. Through the extended heat exchange path of the serpentine cooling pipes 823 and the high-efficiency heat conduction characteristics of the heat-conducting plates 824, the heat exchange efficiency is enhanced, achieving precise liquid cooling. At the same time, multiple ventilation pipes 85 embedded in the inner walls on both sides of the water storage tank 81 form a horizontal ventilation channel. Together with the heat dissipation fan 11 and ventilation holes 9 at the top of the energy storage shell 1, they accelerate the internal air circulation and further dissipate the residual heat after liquid cooling, thus constructing a composite heat dissipation system that combines conductive heat dissipation, liquid cooling and forced air cooling. This composite heat dissipation system absorbs the core heat of the battery pack through the circulation of liquid cooling medium, and then combines it with air cooling to accelerate the discharge of hot air, achieving efficient temperature control that combines heat absorption and heat dissipation. This ensures that the battery cell body 51 operates within the optimal temperature range, thereby significantly improving the high-temperature adaptability, heat dissipation efficiency and operational stability of the energy storage device, and meeting the long-term reliable operation requirements under high load conditions.

[0062] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A solid-state battery cell with good safety performance, characterized in that, include: Battery inner casing (2); Two positioning plates (3) are installed on both sides of the inner wall of the battery inner shell (2); Multiple slots (4) are respectively opened on the opposite sides of the two positioning plates (3); Multiple battery components (5) are respectively installed between two corresponding slots (4); Multiple isolation pads (6) are installed between the opposite surfaces of the two positioning plates (3); The battery assembly (5) includes a cell body (51), a buffer sleeve (52), two elastic sheets (53) and two clearance openings (54). The cell body (51) is placed inside the battery inner shell (2). The buffer sleeve (52) is installed on the outer wall of the cell body (51). The two elastic sheets (53) are respectively installed at both ends of the cell body (51). The two clearance openings (54) are both opened at one end of the elastic sheet (53) on the right side.

2. The solid-state battery cell with good safety performance according to claim 1, characterized in that, The buffer sleeve (52) includes an outer buffer layer (521), an inner buffer layer (522), multiple fiber optic sensors (523), and multiple metal wires (524). The inner buffer layer (522) is installed on the inner wall of the outer buffer layer (521), and the inner wall of the inner buffer layer (522) is fixedly installed with the outer wall of the battery cell body (51). The multiple fiber optic sensors (523) are embedded between the outer buffer layer (521) and the inner buffer layer (522), and the multiple metal wires (524) are embedded inside the outer buffer layer (521).

3. A solid-state battery cell with good safety performance according to claim 1, characterized in that, The multiple battery components (5) and multiple insulating pads (6) are interleaved. The insulating pads (6) are made of rubber open-cell foam material. The buffer sleeve (52) adopts a rectangular frame integrated structure. The elastic sheet (53) is made of corrugated titanium alloy material.

4. A solid-state battery cell with good safety performance according to claim 2, characterized in that, Both the outer buffer layer (521) and the inner buffer layer (522) are configured as honeycomb silicone structures. The honeycomb size of the outer buffer layer (521) is larger than that of the inner buffer layer (522), and their honeycomb directions are orthogonal. The outer buffer layer (521) is made of high-hardness silicone, and the inner buffer layer (522) is made of low-hardness silicone. Multiple optical fiber sensors (523) are evenly distributed along the four sides of the buffer sleeve (52).

5. An energy storage device comprising a solid-state battery cell with good safety performance as described in any one of claims 1-4, characterized in that, Also includes: Energy storage casing (1); Multiple shock-absorbing mechanisms (7) are installed on the top and bottom inner walls of the energy storage shell (1). A heat dissipation mechanism (8) is installed between the top ends of the multiple shock-absorbing mechanisms (7) on the lower side. Two ventilation holes (9) are opened on both sides of the top and bottom inner walls of the energy storage shell (1). Dustproof nets (10) are installed inside the four ventilation holes (9). Heat dissipation fans (11) are installed on both sides of the top of the energy storage shell (1). Multiple battery inner shells (2) are provided and are respectively installed at the bottom ends of the multiple shock-absorbing mechanisms (7) on the upper side. Heat sinks (12) are installed at both ends of the multiple battery inner shells (2). Temperature and humidity sensors (13) are installed on both sides of the inner wall of the energy storage shell (1). A protective frame (14) and a controller (15) are installed at one end of the energy storage shell (1), and the controller (15) is located inside the protective frame (14). A protective top frame (16) is installed at the top of the energy storage shell (1). Two solar panels (17) are installed at the top of the protective top frame (16). A support base frame (18) is installed at the bottom of the energy storage shell (1).

6. An energy storage device according to claim 5, characterized in that, The shock absorption mechanism (7) includes two shock absorption plates (71), multiple shock absorbers (72), two support frames (73), multiple mounting slots (74), multiple drying plates (75), and multiple shock absorption springs (76). The opposite sides of the two shock absorption plates (71) are respectively installed on the bottom inner wall of the energy storage shell (1) and the bottom end of the heat dissipation mechanism (8). The multiple shock absorbers (72) are respectively installed at the four corners of the opposite sides of the two shock absorption plates (71). The two support frames (73) are respectively installed in the middle of the opposite sides of the two shock absorption plates (71). The multiple mounting slots (74) are respectively opened on the inner walls of the two sides of the two support frames (73). The multiple drying plates (75) are respectively installed between the corresponding two mounting slots (74). The multiple shock absorption springs (76) are all installed between the opposite sides of the two support frames (73).

7. An energy storage device according to claim 5, characterized in that, The heat dissipation mechanism (8) includes a water tank (81), a cooling mechanism (82), two water inlet pipes (83), a semiconductor cooling chip (84), and multiple ventilation pipes (85). The water tank (81) is installed between the tops of multiple shock-absorbing mechanisms (7) on the lower side. The cooling mechanism (82) is installed at the top of the water tank (81). The two water inlet pipes (83) are respectively installed on both sides of the top of the water tank (81). The semiconductor cooling chip (84) is installed in the middle of the bottom inner wall of the water tank (81). The two ends of the multiple ventilation pipes (85) pass through the inner walls of both sides of the water tank (81) and are embedded.

8. An energy storage device according to claim 7, characterized in that, The cooling mechanism (82) includes a water pump (821), a distribution pipe (822), multiple cooling pipes (823), and multiple heat-conducting plates (824). The water pump (821) is installed on the bottom inner wall of the water storage tank (81). The distribution pipe (822) is installed on the top of the water pump (821), and the top of the distribution pipe (822) penetrates the top inner wall of the water storage tank (81). The multiple cooling pipes (823) are all installed on the top of the distribution pipe (822), and the other end of the multiple cooling pipes (823) penetrates the top inner wall of the water storage tank (81). The multiple heat-conducting plates (824) are respectively inserted and installed on the outer wall of the multiple cooling pipes (823).

9. An energy storage device according to claim 5, characterized in that, The cooling fan (11) is located directly above the corresponding ventilation hole (9). The temperature and humidity sensor (13) and the cooling fan (11) are both electrically connected to the controller (15). The top of the protective top frame (16) is set with an inverted V-shaped structure. The solar panel (17) is electrically connected to the battery module composed of the battery cell body (51) through the charging control module.

10. An energy storage device according to claim 8, characterized in that, The water pump (821) and the semiconductor cooling chip (84) are both electrically connected to the controller (15). The cooling pipe (823) is configured as a serpentine pipe. The heat-conducting plate (824) is installed between the opposite surfaces of two adjacent heat sinks (12). A sealing ring is provided at the connection between the ventilation pipe (85) and the water storage tank (81).

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