Battery, battery pack and energy system

Abstract

The utility model provides a battery, a battery pack and an energy system, and relates to the technical field of batteries. The utility model relates to a plurality of battery modules arranged in sequence, a heat conduction component located between two adjacent battery modules, and a heat dissipation component. The heat conduction component is provided with a protruding part protruding out of the battery module; the heat dissipation component is supported on the plurality of battery modules, the heat dissipation component is in contact with the protruding part, the heat dissipation component is provided with a fluid channel, the fluid channel is used for introducing working fluid, and the working fluid is thermally interacted with the protruding part through the heat dissipation component.

Description

Technical Field

[0001] The embodiments of this specification relate to the technical field of batteries, and more particularly to a battery, a battery pack, and an energy system. Background Art

[0002] Batteries generate heat during operation. This can be dissipated by arranging a heat dissipation structure within the battery module. For example, a heat dissipation member (such as a heat sink) can be placed at the bottom to dissipate heat from the battery module located above. However, heat dissipation through thermal interaction between the bottom of the battery module and the heat sink can easily create a temperature difference between the top and bottom of the battery module, resulting in poor temperature uniformity and reduced module stability. Furthermore, due to the limited area of ​​the bottom of the battery module, the heat dissipation effect is poor. Utility Model Content

[0003] One or more embodiments of the present specification provide a battery, comprising: a plurality of battery modules arranged in sequence, a heat-conducting member located between two adjacent battery modules, and a heat dissipation member; the heat-conducting member has a protrusion protruding from the battery module; the heat dissipation member is supported by the plurality of battery modules, and the heat dissipation member is in contact with the protrusion, and the heat dissipation member is provided with a fluid channel, the fluid channel is used to pass a working fluid, and the working fluid thermally interacts with the protrusion through the heat dissipation member.

[0004] According to the battery according to some embodiments of this specification, the heat dissipation member includes one or more heat dissipation units, and the heat dissipation unit includes a first wall and a second wall directly or indirectly connected to the protrusion.

[0005] According to the battery described in some embodiments of this specification, the battery module has a battery module surface close to the protrusion, and the heat dissipation unit further includes a third wall directly or indirectly connected to the battery module surface.

[0006] According to the battery described in some embodiments of this specification, the heat dissipation unit includes a panel and a heat dissipation groove opened or extended from the panel in a direction away from the battery module, and the protrusion is inserted into the heat dissipation groove; the panel provides the third wall, and the heat dissipation groove provides the first wall and the second wall.

[0007] According to the battery described in some embodiments of this specification, one side of the first wall and the second wall respectively thermally interacts with the protrusion of the heat-conducting component, and the other side of the first wall and the second wall respectively thermally interacts with the working fluid; one side of the third wall thermally interacts with the battery module, and the other side of the third wall thermally interacts with the working fluid.

[0008] According to the battery described in some embodiments of this specification, one or more separators are provided in the fluid channel to divide the fluid channel into multiple regions.

[0009] According to the battery described in some embodiments of this specification, the working fluid is liquid; the battery further includes: a box body, and the heat dissipation component and the box body together form a cavity for the liquid to pass through.

[0010] According to the battery described in some embodiments of this specification, the working fluid is gas; the battery further includes: a fan, which provides the gas to the heat dissipation component, and the heat dissipation component is closed or open on a side facing away from the battery module.

[0011] According to the battery according to some embodiments of this specification, the first wall and / or the second wall is provided with heat dissipation teeth on a surface facing away from the heat-conducting member.

[0012] According to the battery according to some embodiments of this specification, a heat-conducting material is provided between the first wall and the heat-conducting member, and / or between the second wall and the heat-conducting member.

[0013] According to the battery described in some embodiments of the present specification, at least one of the multiple side surfaces of the battery module is provided with the heat dissipation component, the heat-conducting component has the protrusions whose number corresponds to the number of the heat dissipation components, and the protrusions are arranged between the first wall and the second wall of the heat dissipation unit of the heat dissipation component.

[0014] One or more embodiments of this specification provide a battery pack, comprising a plurality of batteries as described above, wherein the plurality of batteries are directly or indirectly connected.

[0015] One or more embodiments of this specification provide an energy system, comprising one or more batteries as described above, and a load electrical device electrically connected to the one or more batteries.

[0016] The beneficial effects that may be brought about by the embodiments of this specification include but are not limited to: (1) the heat of the battery module is absorbed by the heat-conducting member provided between the battery modules, so that there is a smaller temperature difference between the upper part of the battery module and the lower part of the battery module, so that the temperature of the battery module is uniform, and the performance and life of the battery module are increased; (2) heat dissipation is achieved by the contact between the heat dissipation member and the top surface, bottom surface or side surface of the battery module, and at the same time, heat is dissipated to the large surface of the battery module through the contact between the heat dissipation member and the heat-conducting member, thereby increasing the effective heat dissipation area; (3) heat is dissipated to the heat-conducting member through the first wall and the second wall, and the first wall and the second wall have a larger thermal interaction surface with the cooling fluid, which can transfer the heat of the large surface of the battery module to the heat dissipation member, thereby improving the overall heat dissipation effect of the battery.

[0017] It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other possible beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] This specification will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. The same numbers in the drawings represent the same structures or steps.

[0019] Figure 1 Schematic diagram of a battery module and a heat-conducting component according to some embodiments of this specification.

[0020] Figure 2 It is a schematic diagram of a liquid-cooled heat dissipation component according to some embodiments of this specification.

[0021] Figure 3 It is a schematic diagram of the coordination of the heat-conducting component and the liquid-cooled heat-dissipating component according to some embodiments of this specification.

[0022] Figure 4 It is a cross-sectional schematic diagram of the cooperation between the heat-conducting component and the liquid-cooled heat dissipating component shown in some embodiments of this specification.

[0023] Figure 5 yes Figure 4 A partial enlarged schematic diagram.

[0024] Figure 6 It is a schematic diagram of a liquid-cooled or air-cooled heat dissipation component according to some embodiments of this specification.

[0025] Figure 7 It is a cross-sectional schematic diagram of the cooperation between the heat-conducting component and the air-cooled heat dissipating component shown in some embodiments of this specification.

[0026] Figure 8 yes Figure 7 A partial enlarged schematic diagram.

[0027] Markings in the figure: 1 heat-conducting member; 11 protrusion; 2 battery module; 3 heat dissipation member; 30 heat dissipation unit; 31 first wall; 32 second wall; 33 third wall; 34 fluid channel; 35 panel; 36 heat dissipation groove; 37 partition; 4 box body; 5 fan; 6 heat dissipation teeth; 7 heat-conducting material. DETAILED DESCRIPTION

[0028] To more clearly illustrate the technical solutions of the embodiments of this specification, the embodiments will be described in detail below with reference to the accompanying drawings. Obviously, the following descriptions are some examples or embodiments of this specification, and those skilled in the art can apply the technical solutions or methods disclosed in this specification to other scenarios based on these technical contents without inventive effort.

[0029] It should be understood that the terms "system," "device," "equipment," "portion," and / or "component," "unit," and / or "module" used in this specification are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0030] Unless otherwise specified, technical terms used in this specification to describe components, elements, and the like do not necessarily refer to the singular but may include the plural. Generally speaking, terms such as "include" and "comprising" only indicate the inclusion of the steps, elements, or components specifically identified, and these steps, elements, and components do not constitute an exclusive list. For example, the method or device being described may also include other steps or components.

[0031] In the description of this specification, it should be understood that the descriptions involving directions, such as up, down, front, back, left, and right, and the directions or positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application. In the description of this specification, unless otherwise expressly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above terms in this specification in combination with the specific content of the technical solution.

[0032] Batteries generate heat normally when working. For example, the efficiency of converting chemical energy into electrical energy in fuel cells is about 60% to 80%, and almost all of the remaining energy is converted into heat energy. For example, when the battery is charging, heat is generated due to the increase in current and boiling of the electrolyte. For example, when the battery power decreases, its internal resistance gradually increases, and the power consumed by the internal resistance is converted into heat.

[0033] In some embodiments, the battery includes a housing and a battery module. The battery module can be used to store and release electrical energy, for example, by converting chemical energy into electrical energy through chemical reactions. The battery module is composed of multiple battery cells, each of which includes a positive electrode, a negative electrode, a separator, and an electrolyte. The battery module can include an electrode plate, which is electrically connected to the positive and negative electrodes of the battery cell, and outputs and inputs current. The positive and negative electrodes of the battery cell contain active substances and are the sites of chemical reactions; the separator is used to prevent direct contact between the positive and negative electrodes, but allows ion transfer; and the electrolyte acts as an ion transport medium. In some embodiments, the battery can include multiple battery modules. Furthermore, in some embodiments, heat dissipation of the battery module can be implemented by arranging a heat dissipation structure device.

[0034] Specifically, in some relevant embodiments, a heat dissipation member (e.g., a heat sink) can be provided at the bottom to dissipate heat from the battery module located thereon. However, heat dissipation through thermal interaction between the bottom of the battery module and the heat sink can easily create a temperature difference between the top and bottom of the battery module, resulting in poor temperature uniformity and reduced battery module stability. Furthermore, due to the limited area of ​​the bottom of the battery module, the heat dissipation effect is poor.

[0035] In one or more embodiments of the present disclosure, a battery is provided in which a heat conducting member is arranged between battery modules to balance the temperature difference between the upper and lower parts of the battery modules, while the heat conducting member protrudes from the battery modules to obtain a larger heat interaction area. Figure 1 is a schematic diagram of a battery module and a heat-conducting member according to some embodiments of this specification. Figure 2 is a schematic diagram of a liquid-cooled heat dissipation component according to some embodiments of this specification. Figure 3 This is a schematic diagram of the coordination of the heat-conducting component and the liquid-cooled heat-dissipating component according to some embodiments of this specification, see Figures 1 to 3 As shown, in some embodiments, the battery may include: a plurality of battery modules 2 arranged in sequence, a heat-conducting member 1 located between two adjacent battery modules 2, and a heat dissipation member 3, wherein the heat-conducting member 1 has a protrusion 11 protruding from the battery module 2, the heat dissipation member 3 is supported on the plurality of battery modules 2, and the heat dissipation member 3 is in contact with the protrusion 11, and the heat dissipation member 3 is provided with a fluid channel 34, the fluid channel 34 is used to pass a working fluid, and the working fluid thermally interacts with the protrusion 11 through the heat dissipation member 3.

[0036] A portion of the heat-conducting member 1 may be attached to the large surface of the battery module 2 to achieve heat exchange with the battery module 2. In some embodiments, the shape of the heat-conducting member 1 matches the shape of the large surface of the battery module 2. In some embodiments, the heat-conducting member 1 may extend from the upper end of the battery module 2 to the lower end of the battery module 2 (or the heat-conducting member 1 completely covers the large surface of the battery module 2) to ensure a larger contact area between the heat-conducting member 1 and the battery module 2. In some embodiments, the heat-conducting member 1 may uniformly absorb heat from the upper part to the lower part of the battery module 2 to reduce or even avoid the temperature difference between the upper and lower parts of the battery module. In some embodiments, the large surface of the battery module 2 may refer to the two surfaces with the largest area of ​​the battery module 2 (the battery modules 2 may be stacked in sequence based on the large surface). Specifically, the large surface of the battery module 2 in this embodiment may be Figure 1 The left and right sides of the battery module 2.

[0037] In some embodiments, the heat-conducting member 1 may be a plate-like structure, such as a heat-conducting aluminum plate. In some embodiments, a heat-conducting member 1 is provided between two adjacent battery modules 2, and the heat-conducting member 1 has two side surfaces, and the two side surfaces are respectively adhered to the two battery modules 2. Exemplarily, it can be set up that one battery module 2 and one heat-conducting member 1 are stacked alternately in sequence. In other embodiments, two heat-conducting members 1 are provided between two adjacent battery modules 2, and each heat-conducting member 1 is adhered to the battery module 2 on one side thereof, and the two heat-conducting members 1 are adhered to each other or not (for example, directly adhered, or a heat-conducting medium is filled between the two heat-conducting members 1, or a heat-insulating medium is filled between the two heat-conducting members 1, etc.).

[0038] In some embodiments, the protrusion 11 of the heat-conducting member 1 can be integrally connected to or formed into one piece with the heat-conducting member 1 (for example, in the form of a stamped or sheared plate). Figure 1 As shown, the heat conducting member 1 may be a plate-shaped structure and the height of the heat conducting member may be greater than the height of the battery module 2, so that the lower end of the heat conducting member 1 protrudes from the battery module 2 to form a protrusion 11. In other embodiments, the width of the protrusion 11 of the heat conducting member 1 (i.e. Figure 1 The width in the front-to-back direction of the heat-conducting member 1 may be greater than or less than the width of the main body of the heat-conducting member 1 (i.e., the portion sandwiched between the two battery modules 2), or the protrusion 11 of the heat-conducting member 1 may have an independent shape (e.g., an arc-shaped plate, a rectangular plate, a trapezoidal plate, or various block-shaped bodies, hollow bodies, etc. connected to the main body of the heat-conducting member 1).

[0039] In some embodiments, the protrusion 11 on the thermally conductive member 1 may have one (eg Figure 1(As shown in the figure) a protrusion 11 protruding from the lower end of the battery module 2 and having a width equal to the width of the thermal conductive member 1. In other embodiments, the thermal conductive member 1 may have multiple protrusions 11, for example, including multiple protrusions 11 protruding from the lower end of the battery module 2. Depending on actual needs, the width of the protrusion 11 may also be designed to be greater than or less than the width of the thermal conductive member 1.

[0040] In some embodiments, the protrusion 11 may extend downward from the lower end of the heat-conducting component 1, or from other positions of the heat-conducting component 1, such as Figure 1 In some embodiments, the plurality of protrusions 11 may be located on the same side or end of the thermally conductive member 1. In other embodiments, the plurality of protrusions 11 may also be located on different sides or ends of the thermally conductive member 1.

[0041] The heat dissipation member 3 can support the battery module 2, absorb heat from the heat-conducting member 1 and dissipate heat. Specifically, the heat-conducting member 1 thermally interacts with the large surface of the battery module 2, and thermally interacts with the heat dissipation member 3 through the protrusion 11. In some embodiments, the heat dissipation member 3 can further directly absorb heat from the battery module 2 and dissipate heat. Specifically, the heat dissipation member directly thermally interacts with the bottom or side of the battery module 2. A working fluid is provided inside the fluid channel 34 of the heat dissipation member 3, and the working fluid removes the heat of the heat dissipation member 3.

[0042] There can be one or more heat dissipation components 3 , and the multiple heat dissipation components 3 can be arranged on the same side or different sides, adjacent sides or opposite sides of the battery module 2 .

[0043] See also Figure 3 As shown, in some embodiments, the heat dissipation component 3 includes one or more heat dissipation units 30. Each heat dissipation unit 30 corresponds to a battery module 2 and the thermally conductive component 1 corresponding to that battery module 2, and is used to dissipate heat from a single battery module 2 and its corresponding thermally conductive component 1. In some embodiments, the heat dissipation units 30 can be interconnected or relatively independent (e.g., with gaps between them). In some embodiments, the heat dissipation units 30 can be directly connected in sequence to form the heat dissipation component 3, or they can be connected to each other via a connecting structure to form the heat dissipation component 3.

[0044] Continue to see Figure 3 As shown, the heat dissipation unit 30 may include a first wall 31 and a second wall 32 directly or indirectly connected to the protrusion 11. In some embodiments, the first wall 31 and the second wall 32 may be directly attached to the protrusion 11. In other embodiments, see Figure 5As shown, thermal conductive material 7 may be provided between the first wall 31 and the thermal conductive member 1 (eg, the protrusion 11 of the thermal conductive member 1), and between the second wall 32 and the thermal conductive member 1 (eg, the protrusion 11 of the thermal conductive member 1). For example, the thermal conductive material 7 may be thermal conductive glue.

[0045] In some embodiments, the battery module 2 has a module surface close to the protrusion 11. In some embodiments, the module surface of the battery module 2 refers to the smaller surface of the battery module 2 except for the large surface. Figure 1 、 Figure 3 For example, the module surface can be the top surface, bottom surface, front side surface, or rear side surface of the battery module 2. Continuing with the previous example, the heat dissipation member 3 can be arranged on one or more of the top surface, bottom surface, front side surface, and rear side surface of the battery module 2.

[0046] In some embodiments, at least one of the multiple side surfaces of the battery module 2 is provided with a heat dissipation component 3, and the thermal conductive component 1 has a number of protrusions 11 corresponding to the number of heat dissipation components 3, and the protrusions 11 corresponding to the number of heat dissipation components 3 are all arranged between the first wall 31 and the second wall 32 of the heat dissipation unit 30 of the corresponding heat dissipation component 3.

[0047] In some embodiments, the heat dissipation unit 30 further includes a third wall 33 directly or indirectly connected to the surface of the battery module.

[0048] In some embodiments, see Figure 3 As shown, the heat dissipation unit 30 may sequentially include a third wall 33 extending generally horizontally, a first wall 31 extending generally vertically, and a second wall 32 parallel to the first wall 31, wherein a groove bottom is formed between the first wall 31 and the second wall 32. In some embodiments, the third wall 33 corresponds to the battery module 2, the first wall 31 and the groove bottom, and the second wall 32 corresponds to the protrusion 11 of the thermally conductive member 1. In some embodiments, the third wall 33 is directly attached to the battery module 2 or attached via a thermally conductive material (e.g., thermally conductive adhesive), and the protrusion 11 is inserted into the groove formed by the first wall 31, the groove bottom, and the second wall 32.

[0049] See also Figure 2As shown, the heat dissipation unit 30 of the heat dissipation component 3 may include a panel 35 and a heat dissipation groove 36 formed by opening or extending from the panel 35 in a direction away from the battery module 2, and the protrusion 11 may be inserted into the heat dissipation groove 36. In some embodiments, a plurality of heat dissipation grooves 36 are arranged in parallel. Among them, the panel 35 provides a third wall 33, and the heat dissipation groove 36 provides a first wall 31 and a second wall 32. Specifically, the front end and the rear end of the heat dissipation groove 36 may be closed or open. Exemplarily, the heat dissipation groove 36 may include a heat dissipation front side wall and a heat dissipation rear side wall. Exemplarily, the first wall 31 and the second wall 32 in the heat dissipation groove may pass through the front and rear sides of the heat dissipation component 3 and communicate with the external environment.

[0050] In some embodiments, one side of the first wall 31 and the second wall 32 thermally interacts with the protrusion 11 of the heat-conducting component 1, and the other side of the first wall 31 and the second wall 32 thermally interacts with the working fluid; one side of the third wall 33 thermally interacts with the battery module 2, and the other side of the third wall 33 thermally interacts with the working fluid.

[0051] In some embodiments, thermal interaction also occurs between the aforementioned groove bottom, the heat dissipation front sidewall and the heat dissipation rear sidewall of the heat dissipation groove and the protrusion 11 of the heat conducting component 1 .

[0052] See also Figures 2 to 6 As shown, Figures 2 to 5 A heat dissipation component 3 that can be based on liquid cooling is shown. Figure 6 A heat dissipation component that can be based on liquid cooling or air cooling is shown, wherein the working fluid is liquid. In this embodiment, the battery further includes: a box body 4, and the heat dissipation component 3 and the box body 4 together form a cavity for liquid to pass through. In some embodiments, the first wall 31 and the second wall 32 can be connected to the bottom of the box body 4 to divide the cavity into multiple parallel or substantially parallel spaces so that the liquid can pass through the cavity. Figure 4 In other embodiments, the first wall 31 and the second wall 32 may also be configured to form a gap with the bottom of the box body 4 so that the liquid can also flow through the box body 4 in the front-to-back direction or in an S-shaped manner (for example, flowing in two adjacent fluid channels 34). Figure 4 Flows in the left and right directions.

[0053] In some embodiments, one or more partitions 37 are provided within the fluid channel 34 to divide the fluid channel into multiple regions. In some embodiments, the ends of the partitions 37 may be connected to the front and rear sidewalls of the box body 4, or to one of the front and rear sidewalls of the box body 4, or there may be a gap between the ends of the partitions 37 and both the front and rear sidewalls of the box body 4. In some embodiments, the partitions 37 can impart an S-shaped flow direction to the liquid.

[0054] In some embodiments, one partition 37 may be arranged between two adjacent heat dissipation units 30 , or multiple partitions 37 may be arranged.

[0055] In some embodiments, the first wall 31 and / or the second wall 32 may be provided with heat dissipation teeth 6 (eg, Figure 6 ), so as to increase the contact area between the first wall 31 and / or the second wall 32 and the liquid. Exemplarily, the heat dissipation teeth 6 may include a plurality of parallel strip structures, which may be perpendicular to the first wall 31 and / or the second wall 32 and along the length direction of the first wall 31 and / or the second wall 32 (for example, Figure 5 The front-to-back direction) of the

[0056] See also Figures 6 to 8 As shown, a heat dissipation component 3 that can be based on air cooling is shown, wherein the working fluid is gas. In this embodiment, the battery further includes: a fan 5, which provides gas to the heat dissipation component 3, and the heat dissipation component 3 is closed or open on the side facing away from the battery module 2. Figure 8 As shown, in some embodiments, the fan 5 may be arranged opposite to the first wall 31 and the second wall 32 of the heat dissipation component 3 .

[0057] In some embodiments, one or more partitions 37 are provided within the fluid channel 34 to divide the fluid channel 34 into multiple regions. In some embodiments, the partitions 37 divide the fluid channel 34 into multiple independent partitions, each of which has a first wall 31 and a second wall 32. In some embodiments, each partition is independently equipped with a fan 5.

[0058] In some embodiments, one partition 37 may be arranged between two adjacent heat dissipation units 30 , or multiple partitions 37 may be arranged.

[0059] In some embodiments, the first wall 31 and / or the second wall 32 may be provided with heat dissipation teeth 6 on the surface facing away from the heat conducting member 1 to increase the contact area between the first wall 31 and / or the second wall 32 and the gas. Exemplarily, the heat dissipation teeth 6 may include a plurality of parallel strip structures, which may be perpendicular to the first wall 31 and / or the second wall 32 and extend along the length direction of the first wall 31 and / or the second wall 32 (for example, Figure 8 The front-to-back direction) of the

[0060] In some embodiments, the battery may further include end plates disposed at both ends of the battery modules 2 and the thermally conductive components 1, steel rings, plastic-steel belts, etc. for fixing the battery modules 2 and the thermally conductive components 1 together.

[0061] In some embodiments, the battery further comprises a housing having a receiving cavity, wherein the battery assembly comprising the plurality of battery modules 2, the thermally conductive member 1, the housing 4, and the heat dissipation member 3 is received within the receiving cavity. The battery further comprises a battery management system (BMS) secured within the receiving cavity. The BMS is electrically connected to the plurality of battery modules 2 and is responsible for managing the current input and output of the plurality of battery modules 2.

[0062] In some embodiments, the box body is provided with components such as a current interface, a signal line interface, an explosion-proof valve, and a master control switch. The current interface is responsible for inputting and outputting current to the multiple battery modules, the signal line interface is responsible for communication between the battery management system and external electronic equipment, and the explosion-proof valve is responsible for relieving the pressure when the air pressure in the box body exceeds the rated value. The master control switch is responsible for powering on and off the entire battery. The box body can also be provided with a fluid interface, which is connected to the interface on the box body 4 and is responsible for introducing the cooling working fluid into the fluid channel 34 enclosed by the box body 4 and the heat dissipation component 3. Of course, vents can also be provided on the box body, and the fan 5 is ventilated with the external space corresponding to the vents on the box body. The battery module and the fluid channel are separated into two isolated spaces to ensure that the battery module is in a sealed space for protection.

[0063] One or more embodiments of the present specification provide a battery pack comprising a plurality of batteries, which are directly or indirectly connected. The battery pack comprises a high-voltage control box, which is connected to the plurality of batteries to manage the current output and input of the plurality of batteries.

[0064] One or more embodiments of this specification provide an energy system, which includes one or more batteries and a load electrical device electrically connected to the one or more batteries. It is understandable that the energy system may include one of the batteries, a charging device and a load electrical device. When the energy system is applied to a boat, the energy system may also include a marine propeller connected to the battery, the battery is responsible for supplying power to the marine propeller, the load electrical device may be an electrical device on the boat, and the battery may also supply power to the electrical device on the boat. The charging device may be a photovoltaic charging device or a wind power charging device. In other embodiments, the energy system may also include the battery pack, and the energy system supplies power to the load electrical device on the boat and to the marine propeller on the boat through the battery pack.

[0065] While the basic concepts have been described above, it will be apparent to those skilled in the art that the detailed disclosure is merely illustrative and does not limit this specification. Although not explicitly stated herein, various modifications, improvements, and revisions to this specification may be made by those skilled in the art. Such modifications, improvements, and revisions are taught in this specification and remain within the spirit and scope of the exemplary embodiments of this specification.

Claims

1. A battery, characterized in that: include: A plurality of battery modules arranged in sequence, a heat-conducting member located between two adjacent battery modules, and a heat-dissipating member; The heat conducting member has a protruding portion protruding from the battery module; The heat dissipation component is supported by the plurality of battery modules and is in contact with the protrusion. The heat dissipation component is provided with a fluid channel for allowing a working fluid to pass therethrough. The working fluid thermally interacts with the protrusion through the heat dissipation component.

2. The battery according to claim 1, characterized in that The heat dissipation member includes one or more heat dissipation units, and the heat dissipation unit includes a first wall and a second wall directly or indirectly connected to the protrusion.

3. The battery according to claim 2, characterized in that The battery module has a battery module surface close to the protrusion, and the heat dissipation unit further includes a third wall directly or indirectly connected to the battery module surface.

4. The battery according to claim 3, characterized in that The heat dissipation unit includes a panel and a heat dissipation groove formed by opening or extending from the panel in a direction away from the battery module, and the protrusion is inserted into the heat dissipation groove; The panel provides the third wall, and the heat dissipation groove provides the first wall and the second wall.

5. The battery according to claim 4, characterized in that One side of the first wall and the second wall respectively thermally interacts with the protrusion of the heat conductive member, and the other side of the first wall and the second wall respectively thermally interacts with the working fluid; One side of the third wall thermally interacts with the battery module, and the other side of the third wall thermally interacts with the working fluid.

6. The battery according to claim 3, characterized in that One or more partitions are provided in the fluid channel to divide the fluid channel into multiple areas.

7. The battery according to claim 1, characterized in that The working fluid is a liquid; The battery further includes a box body, wherein the heat dissipation member and the box body together form a cavity for the liquid to pass through.

8. The battery according to claim 1, characterized in that The working fluid is gas; The battery further includes a fan that provides the gas to the heat dissipation component. The heat dissipation component is closed or open on a side facing away from the battery module.

9. The battery according to claim 2, characterized in that The first wall and / or the second wall is provided with heat dissipation teeth on a surface facing away from the heat conducting component.

10. The battery according to claim 2, characterized in that A heat conducting material is provided between the first wall and the heat conducting component, and / or between the second wall and the heat conducting component.

11. The battery according to any one of claims 2 to 6, 9 and 10, characterized in that: The heat dissipation member is provided on at least one of the plurality of side surfaces of the battery module. The heat conductive member includes the protrusions whose number corresponds to the number of the heat dissipation members. The protrusions are provided between the first wall and the second wall of the heat dissipation unit of the heat dissipation member.

12. A battery pack, characterized in that: The invention comprises a plurality of batteries according to any one of claims 1 to 11, wherein the plurality of batteries are directly or indirectly connected.

13. An energy system, characterized in that: The invention comprises one or more batteries according to any one of claims 1 to 11, and a load electrical device electrically connected to the one or more batteries.

Images