Fast-charging battery and fast-charging battery module

Abstract

The present application relates to a fast-charging battery and a fast-charging battery module. The fast-charging battery comprises a housing, a plurality of battery cells, a plurality of groups of first tabs, a heating module and a temperature control assembly. The fast-charging battery module comprises a plurality of fast-charging batteries, wherein the plurality of fast-charging batteries are connected in series and / or in parallel. In the fast-charging battery, the plurality of battery cells are located in the housing, and the plurality of battery cells are sequentially arranged at intervals in the thickness direction thereof; the plurality of groups of first tabs are in one-to-one correspondence with and connected to the plurality of battery cells; the tabs extend out of a same side of the housing and are used for charging and discharging the battery cells; the heating module is connected to the battery cells and is used for heating the battery cells; and the temperature control assembly is connected to the battery cells and is used for controlling the temperature of the battery cells.

Description

Fast charging batteries and their modules Technical Field

[0001] This application relates to the field of power battery technology, and in particular to a fast-charging battery and its module. Background Technology

[0002] With the rapid development of lithium-ion batteries and their large-scale application in new energy vehicles and energy storage, the operating conditions of lithium-ion batteries are becoming increasingly stringent. Not only are they required to operate within the full temperature range, but they also need to be able to charge quickly and stably at high rates.

[0003] In the existing technology, a heating film is attached to the surface of the battery cell, and an insulating film is set on the surface of the heating element to seal the entire heating element, so as to avoid direct contact between the heating element and the battery cell. The insulating film improves the insulation characteristics of the battery, and the tight fit of the heating element achieves overall battery heating, in order to solve the problems of lithium batteries being difficult to operate at low temperatures and slow charging.

[0004] However, because the entire heating element is sealed and the battery cell is located inside the battery, when the temperature of the battery cell rises to a level that affects the charging and discharging efficiency during the charging and discharging process, it is impossible to cool the battery. In other words, it is impossible to control the charging and discharging temperature of the battery within a reasonable range. Furthermore, when the fast charging module activates the heating film function, the heat distribution is uneven, making it impossible to control the charging and discharging temperature of the battery within a reasonable range, which poses a risk of thermal runaway.

[0005] Summary of the Invention

[0006] The purpose of this application is to provide a fast-charging battery and its module to improve at least one of the aforementioned technical problems. This application achieves the above objective through the following technical solution.

[0007] This application provides a fast-charging battery, the fast-charging battery comprising:

[0008] case;

[0009] Multiple battery cells are located inside the housing, and the multiple battery cells are arranged sequentially at intervals along its thickness direction;

[0010] Multiple sets of first tabs are connected to and correspond one-to-one with multiple battery cells. The tabs extend from the same side of the housing and are used to charge and discharge the battery cells.

[0011] A heating module, which is connected to the battery cell, is used to heat the battery cell;

[0012] A temperature control component, which is connected to the battery cell, is used to control the temperature of the battery cell.

[0013] In the actual charging and discharging process of the aforementioned fast-charging battery, when it is initially started and used under low-temperature conditions, the charging and discharging efficiency is low due to the low temperature of the battery and its surroundings. Therefore, the heating module is used to heat the battery cells to improve the charging and discharging efficiency. When the battery temperature rises rapidly or the temperature rises to the point that it affects the battery's charging and discharging efficiency, the temperature control component adjusts the rate of change of the battery cell temperature or directly reduces the temperature of the battery cell to keep the battery cell temperature at the optimal operating temperature, ensuring that the charging and discharging temperature of the battery is controlled within a reasonable range, thereby ensuring the charging and discharging efficiency of the battery cell.

[0014] In one embodiment, the heating module includes a plurality of heating elements, each heating element being connected to at least one of the battery cells, and the battery cell being connected to at least one of the heating elements.

[0015] In this embodiment, a heating element can be connected to only one battery cell, or a heating element can be located between two adjacent battery cells. Along the direction of the battery cell arrangement, a heating element is connected to every two adjacent battery cells at the same time, so that a heating element can heat two battery cells at the same time, saving the number of heating elements, while ensuring the requirement of stable temperature rise of each battery cell.

[0016] In one embodiment, the heating element includes a heating film and a second tab, the heating film being connected to at least one of the battery cells, the battery cells being connected to at least one of the heating films, and the second tab being connected to the heating film for energizing the heating film.

[0017] In one embodiment, the temperature control component includes a plurality of heat sinks located between two adjacent battery cells, a heating element located between two adjacent battery cells, a heating element between two adjacent heat sinks, and a heat sink between two adjacent heating elements.

[0018] In one embodiment, the heat sink is connected to the housing, which is a metal casing.

[0019] In one embodiment, the temperature control assembly further includes a first tube, a second tube, and an evaporator;

[0020] One end of the first tube is connected to the interior of the evaporator, and the other end is connected to the second tube. The first tube is partially surrounded by the first electrode tab.

[0021] One end of the second tube is connected to the interior of the evaporator, and the other end is connected to the first tube. The second tube is partially arranged around the end of the battery cell that is away from the first electrode tab along the first direction.

[0022] The evaporator is filled with a heat exchange medium, and the first direction is perpendicular to the thickness direction of the battery cell.

[0023] In this embodiment, the heat exchange medium inside the evaporator reaches the area around the first tab through the first pipe. At the higher-temperature first tab, it absorbs excess heat and evaporates into a gas. Then, it flows through the second pipe to the end of the fast-charging battery opposite the first tab in the first direction, releasing heat and turning into a liquid. It then returns to the evaporator, where it is again transported to the higher-temperature first tab for cyclical cooling. The state transition of the low-boiling-point heat exchange medium in the first and second pipes achieves the overall temperature equalization function of the fast-charging battery. Specifically, a power device, such as a pump, can be added to the evaporator, the first pipe, or the second pipe to provide power for the flow of the heat exchange medium.

[0024] In one embodiment, the vaporization temperature of the heat exchange medium is 30°C to 70°C, and the liquefaction temperature of the heat exchange medium is -108°C to 30°C. This ensures that the heat exchange medium inside the evaporator reaches the area around the first tab through the first pipe, absorbs excess heat at the higher temperature of the first tab, and evaporates into a gas. It then flows through the second pipe to the end of the fast-charging battery opposite to the first tab in the first direction, releasing heat and turning into a liquid. It returns to the evaporator, where it is again transported to the higher temperature of the first tab for cyclical cooling. The state transition of the low-boiling-point heat exchange medium in the first and second pipes achieves the overall temperature balance of the fast-charging battery.

[0025] In one embodiment, the heat exchange medium is one of acetone, diethyl ether, and pentane. The heat exchange medium inside the evaporator reaches the area around the first tab through the first tube, absorbs excess heat at the higher temperature of the first tab, and evaporates into a gas. It then flows through the second tube through the end of the fast-charging battery opposite the first tab in a first direction, releasing heat and turning into a liquid. It returns to the evaporator, where it is again transported to the higher temperature of the first tab for cyclical cooling. The state transition of the low-boiling-point heat exchange medium in the first and second tubes achieves the overall temperature equalization function of the fast-charging battery.

[0026] In one embodiment, the second electrode extends out of the housing at one end opposite to the first electrode in a first direction.

[0027] This application also provides a fast-charging battery module, which includes a plurality of fast-charging batteries;

[0028] Multiple fast-charging batteries are connected in series and / or in parallel.

[0029] In the actual charging and discharging process, when the fast-charging battery module is initially started under low-temperature conditions, the charging and discharging efficiency is low due to the low temperature of the battery and its surroundings. Therefore, a heating module is used to heat the battery cells to improve the charging and discharging efficiency. When the battery temperature rises rapidly or the temperature rises to the point that it affects the battery charging and discharging efficiency, the temperature control component adjusts the rate of change of the battery cell temperature or directly reduces the temperature of the battery cell to keep the battery cell temperature at the optimal operating temperature. This ensures that the charging and discharging temperature of the battery is controlled within a reasonable range, thereby ensuring the charging and discharging efficiency of the fast-charging battery module's battery cells. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

[0031] Figure 1 is a schematic diagram of the structure of a fast-charging battery according to an embodiment.

[0032] Figure 2 is a cross-sectional view of Figure 1.

[0033] Figure 3 is a schematic diagram of the structure of Figure 1 flipped up and down along the first direction.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Fast-charging battery;

[0036] 110. Shell;

[0037] 120. Battery cell;

[0038] 130. First pole ear;

[0039] 140. Heating module; 141. Heating element; 142. Heating film; 143. Second electrode tab;

[0040] 150. Temperature control assembly; 151. Heat sink; 152. First tube; 153. Second tube; 154. Evaporator;

[0041] OX, First Direction. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0045] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0046] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0047] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0048] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0049] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0050] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0051] Referring to Figure 1, Figure 1 shows a structural schematic diagram of a fast-charging battery 100 in one embodiment of this application. The fast-charging battery 100 provided in one embodiment of this application includes: a housing 110, multiple battery cells 120, multiple sets of first tabs 130, a heating module 140, and a temperature control component 150.

[0052] In the fast-charging battery 100 described above, multiple battery cells 120 are located inside the housing 110, and the multiple battery cells 120 are arranged sequentially at intervals along their thickness direction. Multiple sets of first tabs 130 correspond one-to-one with and are connected to the multiple battery cells 120, with the tabs extending from the same side of the housing 110 for charging and discharging the battery cells 120. A heating module 140 is connected to the battery cells 120 for heating the battery cells 120. A temperature control component 150 is connected to the battery cells 120 for controlling the temperature of the battery cells 120.

[0053] In the actual charging and discharging process, when the fast-charging battery 100 is initially started under low-temperature conditions, the charging and discharging efficiency is low due to the low temperature of the battery and its surroundings. Therefore, the heating module 140 heats up the cell 120 to improve the charging and discharging efficiency. When the battery temperature rises rapidly or the temperature rises to the point that it affects the battery's charging and discharging efficiency, the temperature control component 150 adjusts the rate of temperature change of the cell 120 or directly reduces the temperature of the cell 120 to keep the cell 120 at its optimal operating temperature, ensuring that the charging and discharging temperature of the battery is controlled within a reasonable range, thereby ensuring the charging and discharging efficiency of the cell 120.

[0054] Referring to Figures 1 and 2, in one embodiment, the heating module 140 includes a plurality of heating elements 141, each heating element 141 being connected to at least one battery cell 120, and each battery cell 120 being connected to at least one heating element 141.

[0055] In this embodiment, a heating element 141 may be connected to only one battery cell 120, or a heating element 141 may be located between two adjacent battery cells 120. Along the direction in which the battery cells 120 are arranged, a heating element 141 may be connected to every two adjacent battery cells 120 at the same time, so that a heating element 141 can heat two battery cells 120 at the same time, saving the number of heating elements 141 while ensuring the requirement of stable temperature rise for each battery cell 120.

[0056] Referring to Figures 1 and 2, in one embodiment, the heating element 141 includes a heating film 142 and a second tab 143. The heating film 142 is connected to at least one battery cell 120, and the battery cell 120 is connected to at least one heating film 142. The second tab 143 is connected to the heating film 142 and is used to energize the heating film 142, thereby raising the temperature of the heating film 142 and consequently raising the temperature of the battery cell 120, thus improving the charging and discharging efficiency. When the temperature of the fast-charging battery 100 rises rapidly or rises to a level that affects the charging and discharging efficiency of the fast-charging battery 100, the temperature control component 150 adjusts the rate of temperature change of the battery cell 120 or directly lowers the temperature of the battery cell 120 to keep the temperature of the battery cell 120 of the fast-charging battery 100 at the optimal operating temperature, ensuring that the charging and discharging temperature of the battery is controlled within a reasonable range, thereby ensuring the charging and discharging efficiency of the battery cell 120 of the fast-charging battery 100.

[0057] Referring to Figures 1 and 2, in one embodiment, the temperature control component 150 includes a plurality of heat sinks 151, which are located between two adjacent battery cells 120. A heating element 141 is located between two adjacent battery cells 120. A heating element 141 is located between two adjacent heat sinks 151, and a heat sink 151 is located between two adjacent heating elements 141. This forms a structure in which the battery cell 120, heating film 142, battery cell 120, heat sink 151, battery cell 120, and heating film 142 are arranged in a sequential cycle along the thickness direction of the battery cell 120. This increases the contact area between the heating film 142 and the heat sink 151 and the battery cell 120, thereby improving heating and heat dissipation efficiency, ensuring the temperature stability of the battery cell 120, and saving the heating film 142 and the heat sink 151.

[0058] Referring to Figures 1 and 2, in one embodiment, the heat sink 151 is connected to the housing 110, which is a metal shell. This allows the heat sink 151 to transfer the temperature of the battery cell 120 to the metal shell, and dissipate heat through the metal shell, thereby effectively increasing the overall heat dissipation performance of the fast-charging battery 100. The structure, in which the battery cell 120, heating film 142, battery cell 120, heat sink 151, battery cell 120, and heating film 142 are arranged in a cyclic pattern along the thickness direction of the battery cell 120, increases the contact area between the heating film 142 and the heat sink 151 and the battery cell 120, thereby improving heating and heat dissipation efficiency, ensuring stable temperature of the battery cell 120, and saving on the heating film 142 and heat sink 151. The use of a metal heat sink 151 inside the fast-charging battery 100 increases the overall heat dissipation of the fast-charging battery 100, effectively transferring the heat from the fast-charging battery 100 during high-rate charging to the metal shell 110, and dissipating it through the metal shell 110. It has a heating function and can effectively balance the heat distribution between the bottom of the first tab 130 and the fast charging battery 100.

[0059] Referring to Figures 1 and 2, in one embodiment, the temperature control assembly 150 further includes a first tube 152, a second tube 153, and an evaporator 154. One end of the first tube 152 communicates with the interior of the evaporator 154, and the other end communicates with the second tube 153. The first tube 152 partially surrounds the first tab 130. One end of the second tube 153 communicates with the interior of the evaporator 154, and the other end communicates with the first tube 152. The second tube 153 partially surrounds the end of the battery cell 120 facing away from the first tab 130 along a first direction OX. The evaporator 154 is filled with a heat exchange medium, and the first direction OX is perpendicular to the thickness direction of the battery cell 120. In this embodiment, the heat exchange medium inside the evaporator 154 reaches the vicinity of the first tab 130 through the first pipe 152. At the higher-temperature first tab 130, it absorbs excess heat and evaporates into a gas. Then, it flows through the second pipe 153 to the end of the fast-charging battery 100 opposite to the first tab 130 in the first direction OX, releasing heat and turning into a liquid. It then returns to the evaporator 154, where it is again transported back to the higher-temperature first tab 130 for cyclic cooling. The state transition of the low-boiling-point heat exchange medium in the first pipe 152 and the second pipe 153 achieves overall temperature equalization of the fast-charging battery 100, preventing heat concentration inside the battery and thus avoiding negative impacts on its charge-discharge cycle performance. Specifically, a power device, such as a pump, can be added to the evaporator 154, the first pipe 152, or the second pipe 153 to provide power for the flow of the heat exchange medium.

[0060] For example, a third pipe can also be added, with one end of the third pipe connected to the second pipe 153 and the other end connected to the first pipe 152. The third pipe can be a straight pipe or a flexible pipe to achieve connection between the first pipe 152 and the second pipe 153 after they are arranged along the first direction OX in a curved layout. By splitting the pipe into three parts, a better pipe layout can be achieved and the circulation path of the heat exchange medium can be optimized.

[0061] For example, the vaporization temperature of the heat exchange medium is 30°C to 70°C, and the liquefaction temperature of the heat exchange medium is -108°C to 30°C. This allows the heat exchange medium inside the evaporator 154 to reach the area around the first tab 130 via the first pipe 152, absorb excess heat at the higher temperature of the first tab 130, and evaporate into gas. Then, it flows through the second pipe 153 to the end of the fast-charging battery 100 opposite to the first tab 130 in the first direction OX, releasing heat and turning into liquid. It then returns to the evaporator 154, where it is again transported to the higher temperature of the first tab 130 for cyclic cooling. The state transition of the low-boiling-point heat exchange medium in the first pipe 152 and the second pipe 153 achieves overall temperature balance in the fast-charging battery 100, preventing heat concentration inside the fast-charging battery 100 and affecting its charge-discharge cycle performance.

[0062] In one embodiment, the heat exchange medium is one of acetone, diethyl ether, and pentane. The heat exchange medium can also be other low-boiling-point liquids. The heat exchange medium, inside the evaporator 154, reaches the area around the first tab 130 via the first pipe 152. At the higher-temperature first tab 130, it absorbs excess heat and evaporates into a gas. Then, it flows through the second pipe 153 through the end of the fast-charging battery 100 opposite to the first tab 130 in the first direction OX, releasing heat and becoming liquid again. It returns to the evaporator 154, where it is again transported to the higher-temperature first tab 130 for cyclic cooling. The state transition of the low-boiling-point heat exchange medium in the first pipe 152 and the second pipe 153 achieves overall temperature equalization of the fast-charging battery 100, preventing heat concentration inside the fast-charging battery 100 and affecting its charge-discharge cycle performance.

[0063] Referring to Figures 1 and 2, in one embodiment, the second tab 143 extends out of the housing 110 along the first direction OX from one end away from the first tab 130, as shown in Figure 3. This allows the first and second sections to extend out of the housing 110 on both sides along the first direction OX, resulting in a neater overall structure. The first tab 130 on one side is used for charging and discharging the cell 120, while the second tab 143 on the other side is used to energize the heating film 142. This ensures that the charging, discharging, and heating circuits of the cell 120 do not interfere with each other, improving the stability of the entire fast-charging battery 100.

[0064] For example, the housing 110 is a cylindrical housing 110 or a cubic housing 110 with its axis along the first direction OX, or it can be a housing 110 of other shapes. The specific form of the housing 110 will not be described in detail here.

[0065] One embodiment of this application also provides a fast-charging battery module, which includes a plurality of fast-charging batteries 100.

[0066] Multiple fast-charging batteries 100 are connected in series and / or in parallel.

[0067] In the actual charging and discharging process of the aforementioned fast-charging battery module, when it is initially started and used under low-temperature conditions, the charging and discharging efficiency is low due to the low temperature of the battery and its surroundings. Therefore, the heating module 140 heats up the cell 120 to improve the charging and discharging efficiency. When the battery temperature rises rapidly or the temperature rises to the point that it affects the battery charging and discharging efficiency, the temperature control component 150 adjusts the rate of temperature change of the cell 120 or directly reduces the temperature of the cell 120 to keep the cell 120 at its optimal operating temperature, ensuring that the charging and discharging temperature of the battery is controlled within a reasonable range, thereby ensuring the charging and discharging efficiency of the cell 120 of the fast-charging battery module.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fast-charging battery (100), characterized in that, The fast-charging battery (100) includes: Shell (110); Multiple battery cells (120) are located inside the housing (110), and the multiple battery cells (120) are arranged sequentially at intervals along its thickness direction; Multiple sets of first tabs (130) correspond one-to-one with and are connected to multiple battery cells (120). The tabs extend from the same side of the housing (110) and are used to charge and discharge the battery cells (120). A heating module (140) is connected to the battery cell (120) and is used to heat the battery cell (120); Temperature control component (150), which is connected to the battery cell (120), is used to control the temperature of the battery cell (120).

2. The fast-charging battery (100) according to claim 1, characterized in that, The heating module (140) includes a plurality of heating elements (141), each heating element (141) being connected to at least one of the battery cells (120), and each battery cell (120) being connected to at least one of the heating elements (141).

3. The fast-charging battery (100) according to claim 2, characterized in that, The heating element (141) includes a heating film (142) and a second tab (143). The heating film (142) is connected to at least one of the battery cells (120), and the battery cell (120) is connected to at least one of the heating films (142). The second tab (143) is connected to the heating film (142) and is used to energize the heating film (142).

4. The fast-charging battery (100) according to claim 2, characterized in that, The temperature control component (150) includes a plurality of heat sinks (151), the heat sinks (151) being located between two adjacent battery cells (120), the heating element (141) being located between two adjacent battery cells (120), a heating element (141) being located between two adjacent heat sinks (151), and a heat sink (151) being located between two adjacent heating elements (141).

5. The fast-charging battery (100) according to claim 4, characterized in that, The heat sink (151) is connected to the housing (110), which is a metal shell.

6. The fast-charging battery (100) according to claim 1, characterized in that, The temperature control assembly (150) also includes a first tube (152), a second tube (153), and an evaporator (154); One end of the first tube (152) is connected to the interior of the evaporator (154), and the other end is connected to the second tube (153). The first tube (152) is partially surrounded by the first tab (130). One end of the second tube (153) is connected to the interior of the evaporator (154), and the other end is connected to the first tube (152). The second tube (153) is partially arranged around the battery cell (120) along the first direction (OX) away from the first electrode. One end of the ear (130); The evaporator (154) is filled with a heat exchange medium, and the first direction (OX) is perpendicular to the thickness direction of the battery cell (120).

7. The fast-charging battery (100) according to claim 6, characterized in that, The vaporization temperature of the heat exchange medium is 30℃~70℃, and the liquefaction temperature of the heat exchange medium is -108℃~30℃.

8. The fast-charging battery (100) according to claim 6, characterized in that, The heat exchange medium is one of acetone, diethyl ether, and pentane.

9. The fast-charging battery (100) according to claim 3, characterized in that, The second tab (143) extends out of the housing (110) from one end of the first tab (130) along a first direction (OX), which is perpendicular to the thickness direction of the cell (120).

10. A fast-charging battery (100) module, characterized in that, The fast-charging battery (100) module includes a plurality of fast-charging batteries (100) as described in any one of claims 1-9; Multiple fast-charging batteries (100) are connected in series and / or in parallel.

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