CN216773450U

CN216773450U - Battery module and energy storage device

Info

Publication number: CN216773450U
Application number: CN202220382929.5U
Authority: CN
Inventors: 杨强; 黄伟鹏
Original assignee: Xiamen Haichen New Energy Technology Co Ltd
Current assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-06-17
Anticipated expiration: 2032-02-24

Abstract

The utility model discloses a battery module and an energy storage device. A battery module, comprising: the battery cell module is provided with an output electrode; the panel is arranged on one side of the battery cell module and provided with an output electrode connector; the connecting sheet is connected between the output electrode and the output electrode connector; and a conductor is arranged between at least one of the output pole and the output pole connector and the connecting sheet. Above-mentioned battery module is equipped with the electric conductor through being equipped with between at least one in output utmost point and output utmost point connector and connection piece to increase the area of overflowing, reduce the contact internal resistance, and then promote battery module's security.

Description

Battery module and energy storage device

Technical Field

The utility model relates to the technical field of energy storage, in particular to a battery module and an energy storage device.

Background

In the correlation technique, the battery module includes front panel and electric core module, and the front panel has the output pole connector, and the output pole of electric core module passes through the connection piece and is connected with the output pole connector electricity. However, when the output pole of the battery cell module is connected with the output pole connector, the contact area is difficult to ensure, and then the flow area is difficult to ensure, which brings adverse effects to the safety of the battery module.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a battery module and an energy storage device.

A battery module according to an embodiment of the present invention includes:

the battery cell module is provided with an output electrode;

the panel is arranged on one side of the battery cell module and provided with an output electrode connector;

the connecting sheet is connected between the output pole and the output pole connector;

and a conductor is arranged between the connecting sheet and at least one of the output pole and the output pole connector.

Above-mentioned battery module is equipped with the electric conductor through being equipped with between at least one in output utmost point and output utmost point connector and connection piece to increase the area of overflowing, reduce the contact internal resistance, and then promote battery module's security.

In some embodiments, a first electrical conductor is disposed between the output electrode and the bond pad;

one of the connecting sheet and the output pole is provided with a first groove, one part of the first conductor is accommodated in the first groove, and the other part of the first conductor is clamped between the surface of the connecting sheet and the surface of the output pole. So, can carry on spacingly to first electric conductor, prevent that first electric conductor from taking place to shift in the connection piece installation.

In some embodiments, a second electrical conductor is disposed between the output pole connector and the tab;

one of the connecting sheet and the output pole connector is provided with a second groove, one part of the second conductor is accommodated in the second groove, and the other part of the second conductor is clamped between the surface of the connecting sheet and the surface of the output pole connector. Therefore, the second conductor can be limited, and the second conductor is prevented from shifting in the installation process of the connecting sheet.

In some embodiments, the output electrode has a first connection hole, the connection plate has a second connection hole, the first connection hole corresponds to the second connection hole, and the first groove annularly surrounds the first connection hole. Thus, the connecting sheet and the output electrode can be fixedly connected by the first connecting hole and the second connecting hole.

In some embodiments, the output electrode connector has a third connecting hole, the connecting piece has a fourth connecting hole, the third connecting hole corresponds to the fourth connecting hole, and the second groove annularly surrounds the third connecting hole. Thus, the connecting sheet and the output electrode connector can be fixedly connected by the third connecting hole and the fourth connecting hole.

In some embodiments, the battery module further includes:

the end plate is positioned between the panel and one side of the battery cell module;

the mounting seat is arranged on the end plate, a mounting groove is formed in the mounting seat, and at least one part of the connecting sheet and at least one part of the output electrode are accommodated in the mounting groove. So, can utilize the mount pad to carry on spacingly to connection piece and output utmost point.

In some embodiments, the mount includes:

the mounting part is provided with the mounting groove;

the inserting portion is connected to the bottom of the mounting portion, the end plate is provided with an inserting hole, and the inserting portion is inserted into the inserting hole. Therefore, the installation of the installation seat can be facilitated.

In some embodiments, the battery module includes a case including:

the panel;

the liquid cooling bottom plate sets up the bottom surface of electricity core module. So, can dispel the heat to electric core module.

In some embodiments, the panel is provided with an avoiding groove, the liquid cooling bottom plate is provided with a water inlet connector and a water outlet connector, and the water inlet connector and the water outlet connector are located in the avoiding groove. Therefore, the space occupation of the battery module can be reduced, and the battery module is more compact.

An energy storage device according to an embodiment of the present invention includes the battery module according to any one of the above embodiments.

Above-mentioned energy memory is equipped with the electric conductor through at least one in output utmost point and output utmost point connector and connection piece to increase the area of overflowing, reduce the contact internal resistance, and then promote battery module's security.

Additional aspects and advantages of the utility model 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 the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view illustrating a battery module according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a battery module according to an embodiment of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of illustrating the embodiments of the present invention and are not to be construed as limiting the embodiments of the present invention.

In embodiments of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the utility model. In order to simplify the disclosure of embodiments of the utility model, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Embodiments of the utility model may repeat reference numerals and/or letters in the various examples for simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to fig. 2, a battery module 100 according to an embodiment of the present invention includes a cell module 12, a panel 14, and a connecting piece 16.

Referring to fig. 3, the cell module 12 is provided with an output electrode 18. The panel 14 is disposed on one side of the battery module 12, and the panel 14 is provided with an output electrode connector 20. The connection pad 16 is connected between the output pole 18 and the output pole connector 20. An electrical conductor is provided between at least one of the output pole 18 and the output pole connector 20 and the connecting tab 16.

In the battery module 100, the electric conductor is arranged between at least one of the output electrode 18 and the output electrode connector 20 and the connecting sheet 16, so that the flow area is increased, the contact internal resistance is reduced, and the safety of the battery module 100 is improved. In addition, heat generation due to flow resistance (current resistance) and the like can be reduced, and the service life of the component can be prolonged.

Specifically, a conductive body is provided between at least one of the output electrode 18 and the output electrode connector 20 and the connection pad 16, and in one embodiment, a conductive body is provided between one of the output electrode 18 and the output electrode connector 20 and the connection pad 16, and no conductive body is provided between the other and the connection pad 16, for example, a conductive body is provided between the output electrode 18 and the connection pad 16, and no conductive body is provided between the output electrode connector 20 and the connection pad 16. For another example, a conductor is provided between the output electrode connector 20 and the connecting pad 16, and no conductor is provided between the output electrode 18 and the connecting pad 16.

In another embodiment, an electrical conductor is provided between the output electrode 18 and the connector 16, and an electrical conductor is also provided between the output electrode connector 20 and the connector 16. More specifically, a first conductor 22 is disposed between the output pole 18 and the bond pad 16, and a second conductor 24 is disposed between the output pole connector 20 and the bond pad 16.

The battery module 100 may include a housing 26, the cell module 12 may be disposed in the housing 26, the panel 14 may be a front panel of the housing 26, and the housing 26 further includes two side panels 28 and a liquid-cooled bottom panel 30. Liquid cooling bottom plate 30 sets up the bottom surface at electric core module 12 to dispel the heat to electric core module 12. An insulating colloid 32 is arranged between the side plate 28 and the cell module 12.

In some embodiments, the panel 14 defines an avoiding groove 34, the liquid-cooled base plate 30 defines a water inlet joint 36 and a water outlet joint 38, and the water inlet joint 36 and the water outlet joint 38 are disposed in the avoiding groove 34. Thus, the space occupation of the battery module 100 can be reduced, and the battery module 100 is more compact.

Specifically, in the embodiment shown in fig. 2, an avoiding groove 34 is formed in the lower right corner of the front panel of the housing 26, and the water inlet joint 36 and the water outlet joint 38 extend into the avoiding groove 34. The liquid cooling bottom plate 30 may have a fluid passage therein, and the fluid passage may be communicated with the water inlet connector 36 and the water outlet connector 38, so as to take away heat generated during the operation of the electrical core module 12 through the circulation flow of the cooling fluid in the circulation passage, thereby ensuring that the electrical core module 12 operates within a proper temperature range.

The electric conductor can adopt conductive colloid or conductive agent. The first conductor 22 and the second conductor 24 may be made of the same material, for example, the first conductor 22 and the second conductor 24 may be made of conductive paste, or may be made of different materials, for example, the first conductor 22 is made of conductive paste and the second conductor 24 is made of conductive agent. The conductive paste or agent can achieve a tighter connection with the connecting pad 16, the output electrode 18, and the output electrode connector 20, thereby increasing the flow area. In one example, the internal resistance of the conductive gel or agent is required to be less than 5m Ω. The conductive colloid or conductive agent can be conductive silica gel, or colloid with metal ions, such as copper ions, silver ions, gold ions, and the like. It is understood that in other embodiments, a metallic material may be used for the electrical conductors.

The cell module 12 has two output poles 18, two output pole connectors 20 are arranged on the faceplate 14, and two connecting pieces 16 are provided, wherein one connecting piece 16 is connected with one corresponding output pole 18 and one corresponding output pole connector 20. Of the two output pole connectors 20, one of the output pole connectors 20 may be a positive pole connector and the other output pole connector 20 may be a negative pole connector. The panel 14 is further provided with a battery management system 40(BMS), and the battery management system 40 is electrically connected to the two output electrode connectors 20, and can control the charging and discharging of the battery cell module 12, implement overcurrent and overvoltage protection, and collect battery parameters (such as current, temperature, voltage, etc.). It is understood that, in other embodiments, the number of the output poles 18, the output pole connectors 20, and the connecting pieces 16 is not limited to two, and may be specifically set according to the actual condition of the cell module 12. The output pole connector 20 may also be provided with a back panel 14, or a side panel 28 or other location, and is not particularly limited herein.

The cell module 12 includes a plurality of cells 42, and the plurality of cells 42 may be electrically connected in series, in parallel, or in series and parallel. In the illustrated embodiment, each cell 42 is a square cell 42. In other embodiments, the cells 42 may be cylindrical cells 42, or cells 42 of other shapes. The cells 42 may be lithium cells 42 or other types of cells 42. The cell 42 may be a rechargeable cell 42, or may be a non-rechargeable cell 42. And is not particularly limited herein. The plurality of cells 42 may be identical or different in shape.

The cells 42 may be arranged in a row-column distribution. In one embodiment, a plurality of cells 42 are arranged in a row of cells 42. The top of each cell 42 is provided with two electrodes, one of which is positive and the other is negative. In one embodiment, all cells 42 within a row of cells 42 are connected in series by electrode tabs 44 (e.g., aluminum bars). Of course, the cells 42 within a row of cells 42 may also be connected in parallel or in series-parallel.

In some embodiments, referring to fig. 3, the first conductor 22 is disposed between the output electrode 18 and the connecting pad 16, one of the connecting pad 16 and the output electrode 18 is disposed with a first groove 46, a portion of the first conductor 22 is received in the first groove 46, and another portion of the first conductor 22 is sandwiched between a surface of the connecting pad 16 and a surface of the output electrode 18. In this manner, the first conductor 22 is restrained from shifting during installation of the connecting tab 16.

In particular, the first groove 26 may limit the position of the first electrical conductor 22 received in the first groove 46, preventing the first electrical conductor 22 from shifting during installation of the connector tab 16. Furthermore, the first groove 46 may be pre-positioned when the first conductor 22 is mounted, and particularly, in the case of the first conductor 22 in a fluid state or a gel state, the first conductor 22 may be pre-filled in the first groove 46, and when the connecting piece 16 is connected to the output pole 18, a part of the first conductor 22 is accommodated in the first groove 46, and the other part is sandwiched between the surface of the connecting piece 16 and the surface of the output pole 18.

In one embodiment, the connecting piece 16 is provided with a first groove 46, and the first groove 46 may be formed on an upper surface of the connecting piece 16. A portion of the output electrode 18 is laminated on the connecting tab 16 where the first groove 46 is provided, and covers the first groove 46 to connect with the first conductor 22.

In one embodiment, output pole 18 is provided with a first groove 46. First groove 46 may be formed in an upper surface of output pole 18. A portion of the connecting tab 16 is laminated on the output electrode 18 where the first groove 46 is provided, and covers the first groove 46 to connect with the first conductor 22.

In some embodiments, a second electrical conductor 24 is disposed between the output pole connector 20 and the tab 16, one of the tab 16 and the output pole connector 20 is provided with a second recess 48, a portion of the second electrical conductor 24 is received in the second recess 48, and another portion of the second electrical conductor 24 is sandwiched between a surface of the tab 16 and a surface of the output pole connector 20. In this way, the second conductor 24 is limited and prevented from shifting during the installation of the connecting tab 16.

Specifically, the second groove 48 may limit the position of the second electrical conductor 24 received in the second groove 48, preventing the second electrical conductor 24 from shifting during installation of the tab 16. The second groove 48 may be pre-positioned when the second conductor 24 is mounted, and particularly, in the case of the second conductor 24 in a fluid state or a gel state, the second conductor 24 may be pre-filled in the second groove 48, and when the tab 16 is connected to the output pole connector 20, a part of the second conductor 24 is accommodated in the second groove 48, and the other part is held between the surface of the tab 16 and the surface of the output pole connector 20.

In one embodiment, the connecting tab 16 is provided with a second groove 48. A second groove 48 may be formed in the upper surface of the connecting tab 16. A part of the output pole connector 20 is laminated on the connecting piece 16 where the second groove 48 is provided, and covers the second groove 48 to be connected to the second conductor 24.

In one embodiment, the output pole connector 20 is provided with a second recess 48. The second recess 48 may be formed in the upper surface of the output pole connector 20. A part of the connecting piece 16 is laminated on a portion of the output pole connector 20 where the second groove 48 is provided, and covers the second groove 48 to be connected to the second conductor 24.

In some embodiments, the output pole 18 is formed with a first connection hole 49, the connection piece 16 is formed with a second connection hole 50, the first connection hole 49 corresponds to the second connection hole 50, and the first groove 46 surrounds the first connection hole 49 in a ring shape. In this manner, connecting tab 16 can be fixedly connected to output pole 18 using first connecting hole 49 and second connecting hole 50.

Specifically, in one embodiment, the battery module 100 may further include a first fastening member (not shown), and the first fastening member may be electrically conductive.

A first fastener may be inserted through first connection hole 49 and second connection hole 50 to fixedly connect output pole 18 and connecting tab 16. Specifically, the first fastener may be a bolt, and the bolt may be screwed with a hole wall of the first connection hole 49 and/or the second connection hole 50 to fixedly connect the output pole 18 and the connection piece 16. The first fastener may also be a pin that may be interference fit with the first and second attachment holes 49, 50 to fixedly attach the output pole 18 and the connecting tab 16.

In one embodiment, the battery module 100 may further include a first welding member (not shown), and particularly, at the positions of the first connection hole 49 and the second connection hole 50, the first welding member is formed by welding to fixedly connect the output electrode 18 and the connecting tab 16.

The annular first groove 46 provides a circumferential 360 degree limit for the first conductor 22. The first groove 46 may have a circular shape, a square shape, or other regular polygonal shape, or an irregular polygonal shape. In the embodiment shown in fig. 3, the first groove 46 has a circular ring shape. In addition, the shape of the first groove 46 may also be other shapes, such as a bar shape, an arc shape, a fan shape, and the like, without being limited to a ring shape.

In some embodiments, the first electrical conductor 22 is sandwiched between a surface of the connecting tab 16 and a surface of the output pole 18. Thus, the structure of the battery module 100 can be simplified.

Specifically, in one embodiment, a portion of the connection tab 16 is stacked over a portion of the output pole 18, and the first conductor 22 is sandwiched between a lower surface of the connection tab 16 and an upper surface of the output pole 18.

In one embodiment, a portion of output pole 18 is stacked above a portion of connection pad 16, and first conductor 22 is sandwiched between a lower surface of output pole 18 and an upper surface of connection pad 16.

The first electrical conductor 22 is sandwiched between the surface of the connecting pad 16 and the surface of the output pole 18, and the surface of the connecting pad 16 and the surface of the output pole 18 may be flat. Thus, the surfaces of the output pole 18 and the connecting piece 16 do not need to be grooved, and the output pole 18 and the connecting piece 16 can be flat metal pieces, so that the structure is simple and the cost is low.

In some embodiments, the output pole connector 20 defines a third connecting hole 52, the connecting piece 16 defines a fourth connecting hole 54, the third connecting hole 52 corresponds to the fourth connecting hole 54, and the second groove 48 annularly surrounds the third connecting hole 52. In this manner, the connecting piece 16 and the output pole connector 20 can be fixedly connected by the third connecting hole 52 and the fourth connecting hole 54.

Specifically, in one embodiment, the battery module 100 may further include a second fastening member (not shown), and the second fastening member may be electrically conductive.

A second fastener may be inserted through the third and fourth connection holes 52, 54 to fixedly connect the output pole connector 20 and the connecting piece 16. Specifically, the second fastener may be a bolt, and the bolt may be screwed with the hole wall of the third connection hole 52 and/or the fourth connection hole 54 to fixedly connect the output pole connector 20 and the connection piece 16. The second fastener may also be a pin that may be interference fit with the third and fourth attachment holes 52, 54 to fixedly attach the output pole connector 20 and the connecting piece 16.

In one embodiment, the battery module 100 may further include a second welding member (not shown), which is formed by welding at the positions of the third and fourth connection holes 52 and 54 to fixedly connect the output pole connector 20 and the tab 16.

The annular second groove 48 provides a circumferential 360 degree limit for the second electrical conductor 24. The second groove 48 may have a circular shape, a square shape, or other regular polygonal shape, or an irregular polygonal shape. In the embodiment shown in fig. 3, the second groove 48 has a circular ring shape. In addition, the shape of the second groove 48 may also be other shapes, such as a bar, an arc, a sector, and the like, without being limited to a ring shape.

In some embodiments, the second electrical conductor 24 is sandwiched between a surface of the connector strip 16 and a surface of the output pole connector 20. Thus, the structure of the battery module 100 can be simplified.

Specifically, in one embodiment, a portion of the connecting tab 16 is stacked above a portion of the output pole connector 20, and the second conductor 24 is sandwiched between the lower surface of the connecting tab 16 and the upper surface of the output pole connector 20.

In one embodiment, a portion of the output pole connector 20 is stacked on a portion of the connecting tab 16, and the second conductor 24 is sandwiched between the lower surface of the output pole connector 20 and the upper surface of the connecting tab 16.

The second electrical conductor 24 is held between the face of the tab 16 and the face of the output pole connector 20, and the face of the tab 16 and the face of the output pole connector 20 may be flat. Thus, the surfaces of the connecting piece 16 and the output pole connector 20 do not need to be grooved, and the connecting piece 16 and the output pole connector 20 can be flat metal pieces, so that the structure is simple and the cost is low.

In some embodiments, referring to fig. 2 and 3, the battery module 100 further includes:

an end plate 56, wherein the end plate 56 is located between the panel 14 and one side of the cell module 12;

insulating mount 58, mount 58 set up on end plate 56, mount 58 offer mounting groove 60, and connecting piece 16 at least a part and output pole 18 at least a part are held in mounting groove 60. In this manner, mounting block 58 may be used to position bond pad 16 and output pole 18.

In the illustrated embodiment, the cell module 12 includes two ends: the front end portion and the rear end portion are both provided with an end plate 56, the end plate 56 positioned at the front end portion is a front end plate, the mounting seat 58 is arranged on the front end plate, and the end plate 56 positioned at the rear end portion is a rear end plate. The front and rear end plates are each isolated from the cell module 12 by an insulator (not shown). The end plate 56 and the cell 42 may be bound together by a tie (not shown). The cell module 12 has two output poles 18, and the two output poles 18 are located at the front end of the cell module 12.

It is understood that, in other embodiments, the number of the output electrodes 18 is not limited to two, and the number may be specifically set according to the actual situation of the cell module 12. The two output poles 18 may also be disposed at other positions of the cell module 12, and are not particularly limited herein.

The mounting base 58 is insulated and the mounting base 58 may be made of plastic. In one embodiment, the entire mount 58 may be manufactured from plastic by an injection molding process.

Mounting slots 60 may provide a stop for output pole 18 and connecting tabs 16. Specifically, on the one hand, the mounting groove 60 may indicate the position where the output pole 18 and the connecting piece 16 are mounted and connected, and on the other hand, the connecting piece 16 and the output pole 18 may also be fixed by connecting a fastener to the bottom wall of the mounting groove 60.

In certain embodiments, the mount 58 includes:

the mounting part 62 is provided with a mounting groove 60;

an insertion portion 64, wherein the insertion portion 64 is connected to the bottom of the mounting portion 62, and an insertion hole (not shown) is formed in the end plate 56, and the insertion portion 64 is inserted into the insertion hole. In this manner, installation of the mount 58 may be facilitated.

Specifically, the mounting portion 62 may receive a portion of the connecting piece 16 connected to the output electrode 18, and an insertion hole is opened at an upper side of the front end plate. When the mounting seat 58 is mounted, the insertion portion 64 may be inserted into the insertion hole, so that the mounting seat 58 is positioned and mounted at a predetermined position of the front end plate. The output electrode 18 is then mounted such that one end of the output electrode 18 is connected to the electrode of the cell 42 and the other end is positioned in the mounting groove 60. Then, a conductor is coated on a predetermined position (for example, a position where a groove is formed) of the output electrode 18, the connecting piece 16 is mounted so that a part of the connecting piece 16 covers the conductor, the conductor connects the output electrode 18 and the connecting piece 16, and the output electrode 18 and the connecting piece 16 are locked by a fastener.

An energy storage device according to an embodiment of the present invention includes the battery module 100 according to any one of the above embodiments.

In the energy storage device, the electric conductor is arranged between at least one of the output electrode 18 and the output electrode connector 20 and the connecting sheet 16, so that the flow area is increased, the contact internal resistance is reduced, and the safety of the battery module 100 is improved. In addition, heat generation due to flow resistance (current resistance) and the like can be reduced, and the service life of the component can be prolonged.

Specifically, the energy storage device may include at least one battery module 100, and when the energy storage device includes a plurality of battery modules 100, the plurality of battery modules 100 may be electrically connected in series, in parallel, or in series-parallel.

In one embodiment, a plurality of battery modules 100 may be placed on a rack, and the rack with the battery modules 100 may be placed in a small container to form a small container type energy storage device.

In one embodiment, one or more battery modules 100 may be placed inside the cabinet to form a household energy storage cabinet type energy storage device. Of course, in other embodiments, the energy storage device can be made into other forms of energy storage devices, and is not limited to a small container form and a household energy storage cabinet form.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and those skilled in the art may make variations, modifications, substitutions and alterations to the above embodiments within the scope of the present invention.

Claims

1. A battery module, comprising:

the battery cell module is provided with an output electrode;

2. The battery module according to claim 1,

a first conductor is arranged between the output electrode and the connecting sheet;

one of the connecting sheet and the output pole is provided with a first groove, one part of the first conductor is accommodated in the first groove, and the other part of the first conductor is clamped between the surface of the connecting sheet and the surface of the output pole.

3. The battery module according to claim 1,

a second conductor is arranged between the output electrode connector and the connecting sheet;

one of the connecting sheet and the output pole connector is provided with a second groove, one part of the second conductor is accommodated in the second groove, and the other part of the second conductor is clamped between the surface of the connecting sheet and the surface of the output pole connector.

4. The battery module according to claim 2,

the output electrode is provided with a first connecting hole, the connecting piece is provided with a second connecting hole, the first connecting hole corresponds to the second connecting hole in position, and the first groove surrounds the first connecting hole in an annular shape.

5. The battery module according to claim 3,

the output pole connector is provided with a third connecting hole, the connecting sheet is provided with a fourth connecting hole, the third connecting hole corresponds to the fourth connecting hole in position, and the second groove surrounds the third connecting hole in an annular mode.

6. The battery module according to claim 1, further comprising:

the mounting seat is arranged on the end plate, a mounting groove is formed in the mounting seat, and at least one part of the connecting sheet and at least one part of the output electrode are accommodated in the mounting groove.

7. The battery module according to claim 6, wherein the mounting seat comprises:

the mounting part is provided with the mounting groove;

the inserting portion is connected to the bottom of the mounting portion, the end plate is provided with an inserting hole, and the inserting portion is inserted into the inserting hole.

8. The battery module according to claim 1, wherein the battery module comprises a housing, the housing comprising:

the panel;

the liquid cooling bottom plate sets up the bottom surface of electricity core module.

9. The battery module as recited in claim 8, wherein the panel defines an evasion groove, the liquid-cooled bottom plate defines a water inlet connector and a water outlet connector, and the water inlet connector and the water outlet connector are disposed in the evasion groove.

10. An energy storage device, characterized by comprising the battery module according to any one of claims 1 to 9.