Battery module

Abstract

The application discloses a battery module, which comprises a plurality of single batteries, and a loop is not formed between the shell of each single battery and two polar opposite pole columns, and there is no short circuit risk, thus the insulating film wrapped outside the shell and the partition plate between adjacent shells can be cancelled, the adjacent shells are in contact with each other, the space utilization of the battery module is improved, the number of components is reduced, and the cost is lowered, and the direct contact between the adjacent shells can also improve the heat transfer efficiency and help heat dissipation.

Description

Technical Field

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

[0002] In related technologies, battery modules include multiple individual cells, each of which needs to be covered with an insulating film to ensure insulation. Separators need to be set between adjacent individual cells to leave space for heat dissipation. Battery modules have low space utilization and a large number of components, which is not conducive to the lightweighting of battery modules and battery packs, and will increase the manufacturing cost of battery modules. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a battery module that can improve the space utilization of the battery module, reduce the number of components, and lower costs.

[0004] The battery module provided in the first aspect of this application includes a first single battery cell, and multiple first single batteries cell are provided. Each first single battery cell includes a housing, two terminals and two insulating members. The two terminals are connected to the two insulating members in a one-to-one correspondence. Both insulating members are connected to the housing. The insulating members are located between the terminals and the housing to insulate the terminals from the housing. Multiple first single batteries cell are stacked sequentially and connected in series or parallel with each other. Adjacent housings are in contact with each other.

[0005] The battery module provided in the first aspect of this application has at least the following beneficial effects: the two terminals of the first single cell are insulated from the casing, multiple first single cells are stacked sequentially and connected in series or parallel, and no circuit is formed between each casing and the two terminals with opposite polarities, so there is no risk of short circuit. Therefore, the insulating film covering the casing and the partition between adjacent casings can be eliminated, allowing adjacent casings to contact each other, thereby improving the space utilization of the battery module, reducing the number of components, and reducing costs. Furthermore, the direct contact between adjacent casings can also improve heat transfer efficiency and help dissipate heat.

[0006] In some embodiments of this application, the insulating element is made of insulating rubber.

[0007] The battery module provided in the second aspect of this application includes a second single battery cell, and multiple second single batteries are provided. Each second single battery cell includes a housing, a positive terminal, a negative terminal, an insulating component, and a conductive component. The negative terminal is connected to the insulating component, and the positive terminal is connected to the conductive component. Both the insulating component and the conductive component are connected to the housing. The insulating component is located between the negative terminal and the housing to insulate the negative terminal from the housing. The conductive component is located between the positive terminal and the housing to electrically connect the positive terminal and the housing. Multiple second single batteries are stacked sequentially and connected in parallel with each other, and adjacent housings are in contact with each other.

[0008] The battery module provided in the second aspect of this application has at least the following beneficial effects: the negative terminal of the second single cell is insulated from the casing, and the positive terminal is electrically connected to the casing. Multiple second single cells are stacked sequentially and connected in parallel. Each negative terminal is connected to each other, and each positive terminal is connected to each other. Each casing does not form a circuit with the two terminals of opposite polarity, so there is no risk of short circuit. Therefore, the insulating film covering the casing and the partition between adjacent casings can be eliminated, allowing adjacent casings to contact each other, thereby improving the space utilization of the battery module, reducing the number of components, and reducing costs. Furthermore, the direct contact between adjacent casings can also improve heat transfer efficiency and help dissipate heat. In addition, each casing is electrically connected to the positive terminal and each casing is positively charged, which can reduce the corrosion of the casing during use.

[0009] In some embodiments of this application, the conductive element is made of conductive rubber, and the insulating element is made of insulating rubber.

[0010] The battery module provided in the third aspect of this application includes a first single-cell battery and a second single-cell battery. The first single-cell battery includes a housing, two terminals, and two insulating members. The two terminals are connected to the two insulating members in a one-to-one correspondence. Both insulating members are connected to the housing, and the insulating members are located between the terminals and the housing. The second single-cell battery includes the housing, a positive terminal, a negative terminal, the insulating member, and a conductive member. The negative terminal is connected to the insulating member, and the positive terminal is connected to the conductive member. Both the insulating member and the conductive member are connected to the housing. The insulating member is located between the negative terminal and the housing to insulate the negative terminal from the housing. The conductive member is located between the positive terminal and the housing to electrically connect the positive terminal and the housing. The first single-cell battery and the second single-cell battery are stacked sequentially and connected in parallel with each other, or the second single-cell battery is connected in series with the first single-cell battery through the negative terminal. Adjacent housings are in contact with each other.

[0011] The battery module provided in the third aspect of this application has at least the following beneficial effects: the two terminals of the first single cell are insulated from the casing, the negative terminal of the second single cell is insulated from the casing, and the positive terminal is electrically connected to the casing. The first single cell and the second single cell are stacked sequentially and connected in parallel, or the second single cell is connected in series with the first single cell through the negative terminal. The casings of all single cells are connected to the positive terminal of the second single cell, but none of the negative terminals are connected to the casing or any positive terminal. Each casing does not form a circuit with the two terminals of opposite polarity, so there is no risk of short circuit. Therefore, the insulating film covering the casing and the partition between adjacent casings can be eliminated, allowing adjacent casings to contact each other, thereby improving the space utilization of the battery module, reducing the number of components, and reducing costs. Furthermore, the direct contact between adjacent casings can also improve heat transfer efficiency and help dissipate heat. In addition, each casing is electrically connected to the positive terminal, and each casing is positively charged, which can reduce the corrosion of the casing during use.

[0012] The battery module provided in the fourth aspect of this application includes a first battery pack and a second battery pack. The first battery pack includes a first single cell, comprising a housing, two terminals, and two insulating members. The two terminals are connected to the two insulating members in a one-to-one correspondence. Both insulating members are connected to the housing, and the insulating members are located between the terminals and the housing to insulate the terminals from the housing. The second battery pack includes a plurality of second single cells, each second single cell comprising a housing, a positive terminal, a negative terminal, the insulating member, and a conductive member. The negative terminal is connected to the insulating member, and the positive terminal is connected to the conductive member. Both the insulating member and the conductive member are connected to the housing. The insulating member is located between the negative terminal and the housing to insulate the negative terminal from the housing, and the conductive member is located between the positive terminal and the housing to electrically connect the positive terminal and the housing. The plurality of second single cells are stacked sequentially and connected in parallel. One of the negative terminals in the second battery pack is electrically connected to the first battery pack, and adjacent housings are in contact with each other.

[0013] The battery module provided in the fourth aspect of this application has at least the following beneficial effects: In the first battery pack, the two terminals of the first single cell are insulated from the casing, and the casing does not form a circuit with the two terminals of opposite polarity, so there is no risk of short circuit; In the second battery pack, the negative terminal of the second single cell is insulated from the casing, and the positive terminal is electrically connected to the casing. Multiple second single cells are stacked sequentially and connected in parallel. One negative terminal of the second battery pack is electrically connected to the first battery pack. The casings of all single cells are connected to the positive terminals of the second single cells, but none of the negative terminals are connected to the casing or any positive terminal. Each casing does not form a circuit with the two terminals of opposite polarity, so there is no risk of short circuit. Therefore, the insulating film covering the casing and the partition between adjacent casings can be eliminated, allowing adjacent casings to contact each other, thereby improving the space utilization of the battery module, reducing the number of components, and reducing costs. Furthermore, the direct contact between adjacent casings can also improve heat transfer efficiency and help dissipate heat; In addition, each casing is electrically connected to the positive terminal, and each casing is positively charged, which can reduce the corrosion of the casing during use.

[0014] The battery module provided in the fifth aspect of this application includes a first battery pack and a second battery pack. The first battery pack includes a plurality of first individual cells. Each first individual cell includes a housing, two terminals, and two insulating members. The two terminals are connected to the two insulating members in a one-to-one correspondence. Both insulating members are connected to the housing. The insulating members are located between the terminals and the housing to insulate the terminals from the housing. The plurality of first individual cells are stacked sequentially and connected in series or parallel. The second battery pack includes a second individual cell. The second individual cell includes the housing, a positive terminal, a negative terminal, the insulating member, and a conductive member. The negative terminal is connected to the insulating member, and the positive terminal is connected to the conductive member. Both the insulating member and the conductive member are connected to the housing. The insulating member is located between the negative terminal and the housing to insulate the negative terminal from the housing. The conductive member is located between the positive terminal and the housing to electrically connect the positive terminal and the housing. The negative terminal of the second individual cell is electrically connected to the first battery pack, and adjacent housings are in contact with each other.

[0015] The battery module provided in the fifth aspect embodiment of this application has at least the following beneficial effects: In the first battery pack, the two terminals of the first single cell are insulated from the casing, and multiple first single cells are stacked sequentially and connected in series or parallel. Each casing does not form a circuit with the two terminals of opposite polarity, so there is no risk of short circuit. In the second battery pack, the negative terminal of the second single cell is insulated from the casing, the positive terminal is electrically connected to the casing, and the negative terminal is electrically connected to the first battery pack. The casings of all single cells are connected to the positive terminal of the second single cell, but none of the negative terminals are connected to the casing or any positive terminal. Each casing does not form a circuit with the two terminals of opposite polarity, so there is no risk of short circuit. Therefore, the insulating film covering the casing and the partition between adjacent casings can be eliminated, allowing adjacent casings to contact each other, thereby improving the space utilization of the battery module, reducing the number of components, and reducing costs. Furthermore, the direct contact between adjacent casings can also improve heat transfer efficiency and help dissipate heat. In addition, each casing is electrically connected to the positive terminal, and each casing is positively charged, which can reduce the corrosion of the casing during use.

[0016] The battery module provided in the sixth aspect of this application includes a first battery pack and a second battery pack. The first battery pack includes a plurality of first individual cells. Each first individual cell includes a housing, two terminals, and two insulating members. The two terminals are connected to the two insulating members in a one-to-one correspondence. Both insulating members are connected to the housing. The insulating members are located between the terminals and the housing to insulate the terminals from the housing. The plurality of first individual cells are stacked sequentially and connected in series or in parallel. The second battery pack includes a plurality of second individual cells. Each second individual cell includes a housing, a positive terminal, a negative terminal, the insulating member, and a conductive member. The negative terminal is connected to the insulating member, and the positive terminal is connected to the conductive member. Both the insulating member and the conductive member are connected to the housing. The insulating member is located between the negative terminal and the housing to insulate the negative terminal from the housing. The conductive member is located between the positive terminal and the housing to electrically connect the positive terminal and the housing. The plurality of second individual cells are stacked sequentially and connected in parallel. One of the negative terminals in the second battery pack is electrically connected to the first battery pack, and adjacent housings are in contact with each other.

[0017] The battery module provided in the sixth aspect of this application has at least the following beneficial effects: In the first battery pack, the two terminals of the first single cell are insulated from the casing, and multiple first single cells are stacked sequentially and connected in series or parallel. Each casing does not form a circuit with the two terminals of opposite polarities, thus eliminating the risk of a short circuit. In the second battery pack, the negative terminal of the second single cell is insulated from the casing, while the positive terminal is electrically connected to the casing. Multiple second single cells are stacked sequentially and connected in parallel. One negative terminal of the second battery pack is electrically connected to the first battery pack, and the casings of all single cells are connected to the second single cell. The positive terminals are connected, but none of the negative terminals are connected to the casing or any positive terminal. Each casing does not form a circuit with the two terminals of opposite polarity, eliminating the risk of short circuits. Therefore, the insulating film covering the casing and the separator between adjacent casings can be eliminated, allowing adjacent casings to contact each other. This improves the space utilization of the battery module, reduces the number of components, and lowers costs. Furthermore, the direct contact between adjacent casings also improves heat transfer efficiency and helps dissipate heat. In addition, each casing is electrically connected to the positive terminal and carries a positive charge, which reduces casing corrosion during use.

[0018] The battery module provided in the seventh aspect of this application includes a first battery pack and a second battery pack. The first battery pack includes a first single cell, which includes a housing, two terminals, and two insulating members. The two terminals are connected to the two insulating members in a one-to-one correspondence. Both insulating members are connected to the housing, and the insulating members are located between the terminals and the housing to insulate the terminals from the housing. The second battery pack includes the first single cell and a second single cell. The second single cell includes the housing, a positive terminal, a negative terminal, the insulating members, and a conductive member. The electrode is connected to the insulating component, the positive electrode is connected to the conductive component, and both the insulating component and the conductive component are connected to the housing. The insulating component is located between the negative electrode and the housing to insulate the negative electrode from the housing, and the conductive component is located between the positive electrode and the housing to electrically connect the positive electrode and the housing. The first and second individual cells in the second battery pack are stacked sequentially and connected in parallel. One of the negative electrodes or one electrode in the second battery pack is electrically connected to the first battery pack, and adjacent housings are in contact with each other.

[0019] The battery module provided in the seventh aspect embodiment of this application has at least the following beneficial effects: In the first battery pack, both terminals of the first single cell are insulated from the casing, and the casing and the two terminals with opposite polarities do not form a circuit, so there is no risk of short circuit; In the second battery pack, both terminals of the first single cell are insulated from the casing, the negative terminal of the second single cell is insulated from the casing, and the positive terminal is electrically connected to the casing. The first and second single cells are stacked sequentially and connected in parallel. One negative terminal of the second battery pack is electrically connected to the first battery pack. The casings of all single cells are connected to the casing of the second single cell. The positive terminals of the battery are connected, but none of the negative terminals are connected to the casing or any positive terminal. Each casing does not form a circuit with the two terminals of opposite polarity, eliminating the risk of short circuits. Therefore, the insulating film covering the casing and the separator between adjacent casings can be eliminated, allowing adjacent casings to contact each other. This improves the space utilization of the battery module, reduces the number of components, and lowers costs. Furthermore, the direct contact between adjacent casings also improves heat transfer efficiency and helps dissipate heat. In addition, each casing is electrically connected to the positive terminal and carries a positive charge, which reduces casing corrosion during use.

[0020] The battery module provided in the eighth aspect of this application includes a first battery pack and a second battery pack. The first battery pack includes a plurality of first individual cells. Each first individual cell includes a housing, two terminals, and two insulating members. The two terminals are connected to the two insulating members in a one-to-one correspondence. Both insulating members are connected to the housing. The insulating members are located between the terminals and the housing to insulate the terminals from the housing. The plurality of first individual cells are stacked sequentially and connected in series or parallel. The second battery pack includes the first individual cells and the second individual cells. The second individual cell includes the housing, a positive terminal, a negative terminal, and the... The battery pack includes an insulating component and a conductive component. The negative terminal is connected to the insulating component, and the positive terminal is connected to the conductive component. Both the insulating component and the conductive component are connected to the housing. The insulating component is located between the negative terminal and the housing to insulate the negative terminal from the housing. The conductive component is located between the positive terminal and the housing to electrically connect the positive terminal and the housing. The first and second individual cells in the second battery pack are stacked sequentially and connected in parallel. One of the negative terminals or one of the terminals in the second battery pack is electrically connected to the first battery pack, and adjacent housings are in contact with each other.

[0021] The battery module provided in the first aspect of this application has at least the following beneficial effects: In the first battery pack, the two terminals of the first single cell are insulated from the casing, and multiple first single cells are stacked sequentially and connected in series or parallel. Each casing does not form a circuit with the two terminals of opposite polarities, thus eliminating the risk of a short circuit. In the second battery pack, the two terminals of the first single cell are insulated from the casing, the negative terminal of the second single cell is insulated from the casing, and the positive terminal is electrically connected to the casing. The first and second single cells are stacked sequentially and connected in parallel. One negative terminal of the second battery pack is electrically connected to the first battery pack. All single cells... The battery casings are all connected to the positive terminals of the second individual cells, but none of the negative terminals are connected to the casings or any positive terminals. Each casing does not form a circuit with the two terminals of opposite polarity, eliminating the risk of short circuits. Therefore, the insulating film covering the casing and the separators between adjacent casings can be eliminated, allowing adjacent casings to contact each other. This improves the space utilization of the battery module, reduces the number of components, and lowers costs. Furthermore, the direct contact between adjacent casings also improves heat transfer efficiency and helps dissipate heat. In addition, each casing is electrically connected to the positive terminal and carries a positive charge, which reduces casing corrosion during use.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 A perspective view of a battery module for some embodiments provided in the first or fifth aspect of this application;

[0025] Figure 2 A perspective view of a battery module for some embodiments provided in the first or second aspect of this application;

[0026] Figure 3 A perspective view of a battery module according to some embodiments provided in the fifth, sixth, or eighth aspects of this application;

[0027] Figure 4 A perspective view of a battery module for some embodiments provided in the fourth, fifth, or seventh aspect of this application;

[0028] Figure 5 A perspective view of a battery module according to some embodiments provided in the third aspect of this application;

[0029] Figure 6A perspective view of a first single cell of a battery module provided in some embodiments of the first, third, fourth, fifth, sixth, seventh, or eighth aspects of this application.

[0030] Figure 7 A perspective view of the second cell of a battery module provided in some embodiments of the second, third, fourth, fifth, sixth, seventh, or eighth aspects of this application.

[0031] Figure label:

[0032] The first single cell is 100, the casing is 110, the terminal is 120, the insulating component is 130, the conductive component is 140, the positive terminal is 150, the negative terminal is 160, the second single cell is 200, the busbar is 300, the casing is 400, the first battery pack is 10, and the second battery pack is 20. Detailed Implementation

[0033] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0034] In the description of this application, it should be understood that the orientation descriptions, such as up, down, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They 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 orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0036] In the description of this application, the reference to terms such as "one embodiment," "some embodiments," etc., means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] In this application, all the first single cell 100 have the same structure, as shown in the reference. Figure 6The first single-cell battery 100 includes a casing 110, two terminals 120, and two insulating members 130. The two terminals 120 are connected to the two insulating members 130 in a one-to-one correspondence. Both insulating members 130 are connected to the casing 110, and the insulating members 130 are located between the terminals 120 and the casing 110 to insulate the terminals 120 from the casing 110. All second single-cell batteries 200 have the same structure, as shown below. Figure 7 The second single-cell battery 200 includes a casing 110, a positive electrode post 150, a negative electrode post 160, an insulating component 130, and a conductive component 140. The negative electrode post 160 is connected to the insulating component 130, and the positive electrode post 150 is connected to the conductive component 140. Both the insulating component 130 and the conductive component 140 are connected to the casing 110. The insulating component 130 is located between the negative electrode post 160 and the casing 110 to insulate the negative electrode post 160 from the casing 110. The conductive component 140 is located between the positive electrode post 150 and the casing 110 to electrically connect the positive electrode post 150 to the casing 110. The insulating component 130 can be made of insulating rubber, and the conductive component 140 can be made of conductive rubber. The conductivity of the rubber material can be changed by altering the carbon content in the rubber. For example, rubber with a low carbon content or no carbon content is insulating rubber and can be used to make the insulating component 130; rubber with a high carbon content is conductive rubber and can be used to make the conductive component 140. Further details will not be elaborated in the following embodiments.

[0038] The battery module provided in the first aspect of this application includes a first single cell 100. Multiple first single cells 100 are provided, and the multiple first single cells 100 are stacked sequentially and connected in series or in parallel. Adjacent housings 110 are in contact with each other.

[0039] For example, such as Figure 1 and Figure 2 As shown, the battery module includes multiple first individual cells 100, as referenced. Figure 6 The two terminals 120 of the first single cell 100 are insulated from the casing 110, and the casing 110 is not charged. (Refer to...) Figure 1 Multiple first single cells 100 are stacked and connected in series, as shown in the figure. Figure 2 Multiple first-cell batteries 100 are stacked sequentially and connected in parallel. Each casing 110 does not form a circuit with either of the two oppositely polarized terminals 120, eliminating the risk of short circuits. Therefore, the insulating film covering the casing 110 and the separators between adjacent casings 110 can be eliminated, allowing adjacent casings 110 to contact each other. This improves the space utilization of the battery module, reduces the number of components, and lowers costs. Furthermore, the direct contact between adjacent casings 110 also improves heat transfer efficiency and aids in heat dissipation.

[0040] The battery module provided in the second aspect of this application includes a second single cell 200. Multiple second single cells 200 are provided, and the multiple second single cells 200 are stacked sequentially and connected in parallel with each other. Adjacent housings 110 are in contact with each other.

[0041] For example, such as Figure 2 As shown, the battery module includes multiple second individual cells 200, which are stacked sequentially and connected in parallel. Each negative terminal 160 is interconnected, and each positive terminal 150 is interconnected. No circuit is formed between each housing 110 and the positive terminal 150 and negative terminal 160, eliminating the risk of short circuits. Therefore, the insulating film covering the outer surface of the housing 110 and the separator between adjacent housings 110 can be eliminated, allowing adjacent housings 110 to contact each other. This improves the space utilization of the battery module, reduces the number of components, and lowers costs. Furthermore, the direct contact between adjacent housings 110 also improves heat transfer efficiency and aids in heat dissipation. Additionally, refer to... Figure 7 In the second single cell 200, the positive terminal 150 is connected to the conductive component 140, which is connected to the housing 110. The housing 110 is positively charged, which can reduce the corrosion of the housing 110 during use.

[0042] The battery module provided in the third aspect of this application includes a first single cell 100 and a second single cell 200. The first single cell 100 and the second single cell 200 are stacked sequentially and connected in parallel with each other, or the second single cell 200 is connected in series with the first single cell 100 through a negative terminal post 160, and adjacent housings 110 are in contact with each other.

[0043] For example, such as Figure 5As shown, the battery module includes a first single cell 100 and a second single cell 200, which are stacked sequentially. The second single cell 200 is connected in series with the first single cell 100 via a negative terminal 160. All housings 110 are connected to the positive terminal 150 of the second single cell 200. However, none of the negative terminals 160 of the second single cells 200 or the negative terminal 120 of the first single cell 100 are connected to the housings 110 or any of the positive terminals 150 or 120 of the first single cell 100. No circuit is formed between each housing 110 and the two terminals 120 with opposite polarities, or between the positive terminal 150 and the negative terminal 160, so there is no risk of short circuit. Therefore, the insulating film covering the outer surface of the housing 110 and the partition between adjacent housings 110 can be eliminated, allowing adjacent housings 110 to contact each other, thereby improving the space utilization of the battery module, reducing the number of components, and lowering costs. Furthermore, the direct contact between adjacent housings 110 improves heat transfer efficiency and aids in heat dissipation. In addition, each housing 110 is electrically connected to the positive terminal 150, and each housing 110 is positively charged, which reduces corrosion of the housings 110 during use.

[0044] It is understandable that the first single cell 100 can also be connected in parallel with the second single cell 200.

[0045] The battery module provided in the fourth aspect of this application includes a first battery pack 10 and a second battery pack 20. The first battery pack 10 includes a first single cell 100, and the second battery pack 20 includes a plurality of second single cells 200. The plurality of second single cells 200 are stacked sequentially and connected in parallel with each other. A negative terminal 160 in the second battery pack 20 is electrically connected to the first battery pack 10, and adjacent housings 110 are in contact with each other.

[0046] For example, such as Figure 4As shown, the battery module includes a first battery pack 10 and a second battery pack 20. The first battery pack 10 includes a first single cell 100. The two terminals 120 of the first single cell 100 are insulated from the casing 110. The casing 110 and the two terminals 120 with opposite polarities do not form a circuit, so there is no risk of short circuit. The second battery pack 20 includes multiple second single cells 200, which are stacked sequentially and connected in parallel. One negative terminal 160 of the second battery pack 20 is electrically connected to the first battery pack 10. All casings 110 are connected to the positive terminal 150 of the second single cell 200, but all... Neither the negative terminal 120 of the first single cell 100 nor the negative terminal 160 of the second single cell 200 is connected to the casing 110 or either the positive terminal 120 of the first single cell 100 or the positive terminal 150 of the second single cell 200. No circuit is formed between each casing 110 and the two oppositely polarized terminals 120, or between the positive terminal 150 and the negative terminal 160, eliminating the risk of short circuits. Therefore, the insulating film covering the casing 110 and the separator between adjacent casings 110 can be eliminated, allowing adjacent casings 110 to contact each other, thereby improving the space utilization of the battery module, reducing the number of components, and lowering costs. Furthermore, the direct contact between adjacent casings 110 also improves heat transfer efficiency and aids in heat dissipation. In addition, the positive terminal 150 in the second single cell 200 is connected to the conductive element 140, and the conductive element 140 is connected to the housing 110. The housing 110 of the second single cell 200 is positively charged. The housing 110 of the first single cell 100 is in contact with the housing 110 of the second single cell 200, and is therefore also positively charged, which can reduce the corrosion of the housing 110 during use.

[0047] The battery module provided in the fifth aspect embodiment of this application includes a first battery pack 10 and a second battery pack 20. The first battery pack 10 includes a plurality of first single cells 100, which are stacked sequentially and connected in series or in parallel. The second battery pack 20 includes a second single cell 200, and the negative terminal 160 of the second single cell 200 is electrically connected to the first battery pack 10. Adjacent housings 110 are in contact with each other.

[0048] For example, such as Figure 1As shown, the battery module includes a first battery pack 10 and a second battery pack 20. The first battery pack 10 includes multiple first individual cells 100, which are stacked sequentially and connected in series or parallel. The two terminals 120 of each first individual cell 100 are insulated from the casing 110. Each casing 110 does not form a circuit with the two terminals 120 of opposite polarities, thus eliminating the risk of a short circuit. The second battery pack 20 includes a second individual cell 200, whose negative terminal 160 is electrically connected to the first battery pack 10. All casings 110 are connected to the second individual cell 200. The positive terminal 150 of the battery is connected, but the negative terminals 120 of all the first single-cell batteries 100 and the negative terminal 160 of the second single-cell batteries 200 are not connected to the casing 110 or any of the positive terminals 120 of the first single-cell batteries 100 or the positive terminal 150 of the second single-cell batteries 200. No circuit is formed between each casing 110 and the two terminals 120 of opposite polarity, or between the positive terminal 150 and the negative terminal 160, eliminating the risk of short circuits. Therefore, the insulating film covering the casing 110 and the separator between adjacent casings 110 can be eliminated, allowing adjacent casings 110 to contact each other, thereby improving the space utilization of the battery module, reducing the number of components, and lowering costs. Furthermore, the direct contact between adjacent casings 110 also improves heat transfer efficiency and aids in heat dissipation. In addition, the positive terminal 150 in the second single cell 200 is connected to the conductive element 140, and the conductive element 140 is connected to the housing 110. The housing 110 of the second single cell 200 is positively charged. The housings 110 of the first single cell 100 are in direct or indirect contact with the housings 110 of the second single cell 200, and therefore are also positively charged, which can reduce the corrosion of the housings 110 during use.

[0049] The battery module provided in the sixth aspect of this application includes a first battery pack 10 and a second battery pack 20. The first battery pack 10 includes a plurality of first individual cells 100, which are stacked sequentially and connected in series or in parallel. The second battery pack 20 includes a plurality of second individual cells 200, which are stacked sequentially and connected in parallel. A negative terminal 160 in the second battery pack 20 is electrically connected to the first battery pack 10, and adjacent housings 110 are in contact with each other.

[0050] For example, such as Figure 3As shown, the battery module includes a first battery pack 10 and a second battery pack 20. The first battery pack 10 includes multiple first individual cells 100, which are stacked sequentially and connected in series. The second battery pack 20 includes multiple second individual cells 200, which are stacked sequentially and connected in parallel. One negative terminal 160 of the second battery pack 20 is electrically connected to the first battery pack 10. All casings 110 are connected to the positive terminal 150 of the second individual cells 200. However, the negative terminals 120 and the second negative terminals 150 of all first individual cells 100 are not connected to the first battery pack 10. Neither of the negative terminals 160 of the two individual cells 200 is connected to the casing 110 or the positive terminal 120 of either the first individual cell 100 or the positive terminal 150 of the second individual cell 200. Since no circuit is formed between each casing 110 and the two opposite terminals 120, or between the positive terminal 150 and the negative terminal 160, there is no risk of short circuit. Therefore, the insulating film covering the casing 110 and the separator between adjacent casings 110 can be eliminated, allowing adjacent casings 110 to contact each other. This improves the space utilization of the battery module, reduces the number of components, and lowers costs. Furthermore, the direct contact between adjacent casings 110 also improves heat transfer efficiency and aids in heat dissipation. In addition, the positive terminal 150 in the second single cell 200 is connected to the conductive element 140, and the conductive element 140 is connected to the housing 110. The housing 110 of the second single cell 200 is positively charged. The housings 110 of the first single cell 100 are in direct or indirect contact with the housings 110 of the second single cell 200, and therefore are also positively charged, which can reduce the corrosion of the housings 110 during use.

[0051] It is understandable that the multiple first individual cells 100 in the first battery pack 10 can also be connected in parallel with each other.

[0052] The battery module provided in the seventh aspect embodiment of this application includes a first battery pack 10 and a second battery pack 20. The first battery pack 10 includes a first single cell 100; the second battery pack 20 includes the first single cell 100 and the second single cell 200. The first single cell 100 and the second single cell 200 in the second battery pack 20 are stacked sequentially and connected in parallel with each other. A negative terminal 160 or a terminal 120 in the second battery pack 20 is electrically connected to the first battery pack 10, and adjacent housings 110 are in contact with each other.

[0053] For example, such as Figure 4As shown, the battery module includes a first battery pack 10 and a second battery pack 20. The first battery pack 10 includes a first single cell 100; the second battery pack 20 includes the first single cell 100 and the second single cell 200. The first single cell 100 and the second single cell 200 in the second battery pack 20 are stacked sequentially and connected in parallel. One negative terminal 160 or one terminal 120 in the second battery pack 20 is electrically connected to the first battery pack 10, and all housings 110 are connected to the positive terminal 150 of the second single cell 200. However, none of the negative terminals 160 or negative polarity terminals 120 are connected to the casing 110 or any of the positive terminals 150 or positive polarity terminals 120. No circuit is formed between each casing 110 and the two opposite polarity terminals 120, or between the positive terminal 150 and the negative terminal 160, eliminating the risk of short circuits. Therefore, the insulating film covering the casing 110 and the separator between adjacent casings 110 can be eliminated, allowing adjacent casings 110 to contact each other, thereby improving the space utilization of the battery module, reducing the number of components, and lowering costs. Furthermore, the direct contact between adjacent casings 110 also improves heat transfer efficiency and aids in heat dissipation. In addition, the positive terminal 150 in the second single cell 200 is connected to the conductive element 140, and the conductive element 140 is connected to the housing 110. The housing 110 of the second single cell 200 is positively charged. The housings 110 of the first single cell 100 are in direct or indirect contact with the housings 110 of the second single cell 200, and therefore are also positively charged, which can reduce the corrosion of the housings 110 during use.

[0054] It is understood that the number of first individual cells 100 and second individual cells 200 in the second battery pack 20 is not limited, and may include one or more first individual cells 100 and one or more second individual cells 200, which can be set according to actual needs.

[0055] The battery module provided in the eighth aspect embodiment of this application includes a first battery pack 10 and a second battery pack 20. The first battery pack 10 includes a plurality of first single cells 100, which are stacked sequentially and connected in series or in parallel. The second battery pack 20 includes first single cells 100 and second single cells 200, which are stacked sequentially and connected in parallel. A negative terminal 160 or a terminal 120 in the second battery pack 20 is electrically connected to the first battery pack 10, and adjacent housings 110 are in contact with each other.

[0056] For example, such as Figure 3As shown, the battery module includes a first battery pack 10 and a second battery pack 20. The first battery pack 10 includes multiple first individual cells 100, which are stacked sequentially and connected in series. The second battery pack 20 includes first individual cells 100 and second individual cells 200, which are stacked sequentially and connected in parallel. One terminal 120 or one negative terminal 160 in the second battery pack 20 is electrically connected to the first battery pack 10, and all housings 110 are connected to the second individual cells. The positive terminal 150 of the battery module is connected, but none of the negative terminals 160 or negative terminals 120 are connected to the casing 110 or any of the positive terminals 150 or 120. No circuit is formed between each casing 110 and the two opposite terminals 120, or between the positive terminal 150 and the negative terminal 160, eliminating the risk of a short circuit. Therefore, the insulating film covering the casing 110 and the separator between adjacent casings 110 can be eliminated, allowing adjacent casings 110 to contact each other. This improves the space utilization of the battery module, reduces the number of components, and lowers costs. Furthermore, the direct contact between adjacent casings 110 also improves heat transfer efficiency and aids in heat dissipation. In addition, the positive terminal 150 in the second single cell 200 is connected to the conductive element 140, and the conductive element 140 is connected to the housing 110. The housing 110 of the second single cell 200 is positively charged. The housings 110 of the first single cell 100 are in direct or indirect contact with the housings 110 of the second single cell 200, and therefore are also positively charged, which can reduce the corrosion of the housings 110 during use.

[0057] It is understood that the number of first individual cells 100 and second individual cells 200 in the second battery pack 20 is not limited, and may include one or more first individual cells 100 and one or more second individual cells 200, which can be set according to actual needs. Multiple first individual cells 100 in the first battery pack 10 can also be connected in parallel with each other.

[0058] It should be noted that, referring to Figures 1 to 5 In any of the embodiments of the first to eighth aspects of this application described above, two adjacent first single cell batteries 100, or two adjacent first single cell batteries 100 and second single cell batteries 200, or two adjacent second single cell batteries 200 can be connected by a busbar 300. The busbar 300 can be welded to the terminal post 120, which can realize the series or parallel connection between two adjacent first single cell batteries 100, or two adjacent first single cell batteries 100 and second single cell batteries 200, or two adjacent second single cell batteries 200, and can also play a fixing role, connecting multiple single cells into a whole.

[0059] It should be noted that, referring to Figures 1 to 5In any of the embodiments of the first to eighth aspects of this application described above, a housing 500 may also be provided, in which a plurality of first single cells 100, or a plurality of second single cells 200, or a first battery pack 10 and a second battery pack 20 are accommodated. The housing 500 can provide support and protection for the plurality of first single cells 100, or a plurality of second single cells 200, or a first single cell 100 and a second single cell 200, or a first battery pack 10 and a second battery pack 20.

[0060] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A battery module, characterized by, include: The first battery pack includes a first single cell, which includes a casing, two terminals and two insulating members. The two terminals are connected to the two insulating members in a one-to-one correspondence. Both insulating members are connected to the casing. The insulating members are located between the terminals and the casing to insulate the terminals from the casing. The casing is not charged. The second battery pack includes multiple second individual cells. Each second individual cell includes a housing, a positive terminal, a negative terminal, an insulating element, and a conductive element. The negative terminal is connected to the insulating element, and the positive terminal is connected to the conductive element. Both the insulating element and the conductive element are connected to the housing. The insulating element is located between the negative terminal and the housing to insulate the negative terminal from the housing. The conductive element is located between the positive terminal and the housing to electrically connect the positive terminal and the housing. The housing is positively charged. The multiple second individual cells are stacked sequentially and connected in parallel. In this configuration, one of the negative terminals in the second battery pack is electrically connected to the first battery pack, and adjacent housings are in contact with each other. No circuit is formed between each housing and the positive terminal and the negative terminal.

2. The battery module of claim 1, wherein the battery module is configured to be mounted to a vehicle. include: The first battery pack includes multiple first individual cells. Each first individual cell includes a casing, two terminals and two insulating components. The two terminals are connected to the two insulating components in a one-to-one correspondence. Both insulating components are connected to the casing. The insulating components are located between the terminals and the casing to insulate the terminals from the casing. The casing is not charged. The multiple first individual cells are stacked sequentially and connected in series or in parallel. The second battery pack includes multiple second individual cells. Each second individual cell includes a housing, a positive terminal, a negative terminal, an insulating element, and a conductive element. The negative terminal is connected to the insulating element, and the positive terminal is connected to the conductive element. Both the insulating element and the conductive element are connected to the housing. The insulating element is located between the negative terminal and the housing to insulate the negative terminal from the housing. The conductive element is located between the positive terminal and the housing to electrically connect the positive terminal and the housing. The housing is positively charged. The multiple second individual cells are stacked sequentially and connected in parallel. In this configuration, one of the negative terminals in the second battery pack is electrically connected to the first battery pack, and adjacent housings are in contact with each other. No circuit is formed between each housing and the positive terminal and the negative terminal.

3. A battery module, characterized by, include: The first battery pack includes a first single cell, the first single cell including a casing, two terminals and two insulating members, the two terminals being connected to the two insulating members in a one-to-one correspondence, the two insulating members being connected to the casing, the insulating members being located between the terminals and the casing to insulate the terminals from the casing, and the casing being non-energized; The second battery pack includes the first single cell and at least two second single cells. Each second single cell includes the housing, a positive terminal, a negative terminal, an insulating element, and a conductive element. The negative terminal is connected to the insulating element, and the positive terminal is connected to the conductive element. Both the insulating element and the conductive element are connected to the housing. The insulating element is located between the negative terminal and the housing to insulate the negative terminal from the housing. The conductive element is located between the positive terminal and the housing to electrically connect the positive terminal and the housing. The housing is positively charged. The first single cell and the second single cell in the second battery pack are stacked sequentially and connected in parallel. In this configuration, one of the negative terminals or one of the terminals in the second battery pack is electrically connected to the first battery pack, adjacent housings are in contact with each other, and no circuit is formed between each housing and the positive terminal and the negative terminal.

4. A battery module, characterized by include: The first battery pack includes multiple first individual cells. Each first individual cell includes a casing, two terminals and two insulating components. The two terminals are connected to the two insulating components in a one-to-one correspondence. Both insulating components are connected to the casing. The insulating components are located between the terminals and the casing to insulate the terminals from the casing. The casing is not charged. The multiple first individual cells are stacked sequentially and connected in series or in parallel. The second battery pack includes the first single cell and at least two second single cells. Each second single cell includes the housing, a positive terminal, a negative terminal, an insulating element, and a conductive element. The negative terminal is connected to the insulating element, and the positive terminal is connected to the conductive element. Both the insulating element and the conductive element are connected to the housing. The insulating element is located between the negative terminal and the housing to insulate the negative terminal from the housing. The conductive element is located between the positive terminal and the housing to electrically connect the positive terminal and the housing. The housing is positively charged. The first single cell and the second single cell in the second battery pack are stacked sequentially and connected in parallel. In this configuration, one of the negative terminals or one of the terminals in the second battery pack is electrically connected to the first battery pack, adjacent housings are in contact with each other, and no circuit is formed between each housing and the positive terminal and the negative terminal.

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