CN219553831U - Current collector and battery module - Google Patents

Abstract

The embodiment of the utility model provides a current collector and a battery module. The collector comprises a substrate and a plug assembly, wherein the substrate is provided with a first through hole, the first through hole is used for the tab to pass through, the plug assembly is provided with a plug space, the plug assembly is arranged on the substrate, and the plug space is communicated with the first through hole so as to be used for the tab to be embedded in the plug space. The collector bar of the embodiment of the utility model can be connected with the lug in a plugging manner, so that the lug can be conveniently disassembled and assembled.

Description

Current collector and battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to a current collector and a battery module.

Background

The current collector is a metal part for connecting the battery cell lugs, and is also called an aluminum collector because the current collector is made of aluminum metal. In the related art, the current collector is welded to the tab of the battery cell, so that the battery cell cannot be detached after being connected to the current collector, for example, when the battery cell is damaged, the damaged battery cell cannot be separated from the current collector alone.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the utility model provides a current collecting bar which can be connected with the tab in a plugging manner, so that the tab can be conveniently disassembled and assembled.

The embodiment of the utility model also provides a battery module.

The current collector of the embodiment of the utility model comprises:

the base plate is provided with a first through hole, and the first through hole is used for enabling the tab to pass through;

the plug-in assembly is provided with a plug-in space, the plug-in assembly is arranged on the substrate, and the plug-in space is communicated with the first through hole so as to be used for embedding the lug in the plug-in space.

According to the embodiment of the utility model, the plug-in assembly is arranged on the substrate, and the plug-in space of the plug-in assembly is communicated with the first through hole of the substrate, so that the tab can be embedded in the plug-in space through the first through hole, the current collector can be connected with the tab in a plug-in manner, and the tab can be conveniently disassembled and assembled.

In some embodiments, the plug assembly includes at least two abutment plates disposed around a center line of the first through hole such that the plug space is formed between the at least two abutment plates.

In some embodiments, the abutment piece extends in a direction away from the base plate and is disposed obliquely toward a center line of the first through hole, the abutment piece being movable in a direction toward and away from the center line of the first through hole.

In some embodiments, the abutment plates include first abutment plates, two adjacent first abutment plates are arranged at intervals along the thickness direction of the first abutment plates, the plugging space is located between the two adjacent first abutment plates, and the two adjacent first abutment plates can be close to and far away from each other.

In some embodiments, the abutment further includes a second abutment, the thickness direction of the first abutment is a first direction, the thickness direction of the second abutment is a second direction, an included angle is formed between the first direction and the second direction, the size of the second abutment in the first direction is smaller than that of the first abutment in the second direction, two adjacent second abutments are arranged at intervals along the second direction, and the plugging space is located between two adjacent second abutments.

In some embodiments, the wall surface of the abutment plate facing the plugging space is provided with a positioning protrusion and/or a positioning groove, the positioning protrusion is used for being embedded into a groove or a positioning hole on the tab, and the positioning groove is used for being embedded into the protrusion on the tab.

In some embodiments, the substrate has a plurality of first through holes, the plugging assembly is a plurality of plugging spaces of the plugging assembly are in one-to-one correspondence with the first through holes.

In some embodiments, the substrate includes a board body and a bending portion, the plug assembly and the first through hole are disposed on the board body, and an included angle is formed between the bending portion and the board body.

The battery module of the embodiment of the utility model comprises:

a bracket having a second through hole;

a collector, where the collector is any one of the foregoing embodiments, the substrate is connected to one end of the support, and the first through hole is communicated with the second through hole;

the battery cell comprises a battery cell main body and a tab, wherein the battery cell main body is arranged at the other end of the bracket, the tab is arranged on the battery cell main body, and the tab is arranged in the second through hole, the first through hole and the inserting space in a penetrating manner.

The battery module provided by the embodiment of the utility model is provided with the current collecting bar provided by the embodiment of the utility model, the current collecting bar is arranged at one end of the bracket, the battery core is arranged at the other end of the bracket, and the electrode lugs are connected with the current collecting bar in an inserting way through the second through holes so as to facilitate the disassembly, assembly and replacement of the battery core.

In some embodiments, one end of the bracket has a mounting slot, and the collector bar is positioned in the mounting slot.

Drawings

FIG. 1 is a schematic view of a current collector according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of a current collector;

fig. 3 is a schematic view of a third embodiment of a current collector;

fig. 4 is a schematic structural view of a current collector according to an embodiment of the present utility model;

fig. 5 is an exploded view of a battery module according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of the cell in fig. 5.

Reference numerals:

100. a current collecting row; 1. a substrate; 11. a first through hole; 12. a plate body; 13. a bending part; 2. a plug assembly; 21. a plugging space; 22. a contact piece; 221. a first contact piece; 222. a second contact piece; 223. positioning the bulge;

200. a bracket; 201. a second through hole; 202. a mounting groove;

300. a battery cell; 301. a cell body; 302. a tab; 303. and positioning holes.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A current collector and a battery module according to an embodiment of the present utility model are described below with reference to fig. 1 to 6.

As shown in fig. 1-6, a current collector of an embodiment of the present utility model includes a substrate 1 and a plug assembly 2.

The substrate 1 has a first through hole 11, and the first through hole 11 is used for passing through the tab 302. The plug assembly 2 has a plug space 21, the plug assembly 2 is disposed on the substrate 1, and the plug space 21 is communicated with the first through hole 11, so that the tab 302 is embedded in the plug space 21.

As shown in fig. 1 and 2, the substrate 1 extends in the horizontal direction, and the substrate 1 has a first through hole 11. The upper end face of the base plate 1 is provided with the plug-in component 2, the plug-in component 2 can be welded and connected with the base plate 1, and also can be connected through screws, and the plug-in component 2 and the base plate 1 can be arranged into an integral structure, preferably an integral structure. The interior of the plugging assembly 2 is provided with a plugging space 21, the lower end of the plugging space 21 is communicated with the first through hole 11, and the plugging space 21 can penetrate through the plugging assembly 2 along the up-down direction and also can be sealed at the upper end, and preferably penetrates through the plugging assembly 2 along the up-down direction. In the horizontal projection plane, the projection shapes of the first through hole 11 and the plugging space 21 may be circular, semicircular, triangular, rectangular, polygonal, etc., preferably rectangular, so as to avoid the tab rotating around the center line of the plugging space 21 in the plugging space 21. The number of plug assemblies 2 on the substrate 1 may be one, two, three or more.

According to the current collector, the plug-in assembly is arranged on the substrate, the plug-in space of the plug-in assembly is communicated with the first through hole of the substrate, so that the tab can penetrate through the first through hole to be embedded in the plug-in space, and the tab is in butt connection with the plug-in assembly. Therefore, the current collecting bar can be connected with the electrode lugs in an inserting mode, and compared with the current collecting bar welded and connected with the electrode lugs in the related technology, the current collecting bar in the embodiment of the utility model is convenient for disassembling and assembling the electrode lugs.

In some embodiments, the plug assembly 2 comprises at least two abutment tabs 22, the at least two abutment tabs 22 being arranged around the centre line of the first through hole 11 such that a plug space 21 is formed between the at least two abutment tabs 22.

As shown in fig. 1, the plugging assembly 2 includes four abutment plates 22, the abutment plates 22 are in a straight line shape, and the four abutment plates 22 are disposed around the center line of the first through hole 11, so that the four abutment plates 22 form a plugging space 21 around, and the projection of the plugging space 21 on the horizontal plane is rectangular.

It will be appreciated that the plug space is not limited to a rectangular space formed by surrounding four abutment plates, and in other embodiments, the plug assembly includes three abutment plates having an included angle of 60 ° between two adjacent abutment plates, the three abutment plates surrounding a triangular plug space.

It is understood that the abutment plates are not limited to be linear, and in other embodiments, the abutment plates may be arc-shaped, and the number of abutment plates may be two, three or more, and at least two abutment plates are arranged at intervals around the center line of the first through hole, so that a circular insertion space is formed between at least two abutment plates.

In some embodiments, the abutment piece 22 extends in a direction away from the base plate 1 and is disposed obliquely toward the center line of the first through hole 11, and the abutment piece 22 is movable in a direction toward and away from the center line of the first through hole 11.

Specifically, the abutment piece 22 extends upward from the upper end surface of the base plate 1 and is inclined toward the center line of the first through hole 11, and the abutment piece 22 and the base plate 1 are preferably made of aluminum-based materials, so that the abutment piece 22 has a certain elasticity, and the abutment piece 22 can move in a direction toward and away from the center line of the first through hole 11 under the action of an external force or a self-restoring force, in other words, the included angle between the abutment piece 22 and the base plate 1 can be changed under the action of the external force or the self-restoring force.

In the process of inserting the tab into the insertion space, the abutment piece 22 moves in a direction away from the center line of the first through hole 11 under the pushing of the tab, and in the process of withdrawing the tab from the insertion space, the abutment piece 22 moves in a direction toward the center line of the first through hole 11 under the action of the restoring force of the abutment piece.

On the one hand, when the tab is located in the plug-in space, the abutting piece and the tab can be kept in an abutting state so as to ensure power transmission, and meanwhile, the tab is fixedly acted by pressure of the abutting piece, on the other hand, in the process that the tab exits from the plug-in space, the pressure of the abutting piece on the tab plays a pushing role, so that the tab is convenient to exit from the plug-in space, and the tab is prevented from being clamped.

It will be appreciated that the abutment tab is not limited to being disposed obliquely and can be moved toward and away from the center line of the first through hole, and in other embodiments, the abutment tab extends vertically in an up-down direction.

In some embodiments, the abutment plates 22 include the first abutment plates 221, adjacent two of the first abutment plates 221 are arranged at intervals in the thickness direction of the first abutment plates 221, the insertion space 21 is located between the adjacent two first abutment plates 221, and the adjacent two first abutment plates 221 can be close to and distant from each other.

As shown in fig. 1, the abutment piece 22 includes first abutment pieces 221, the length direction of the first abutment pieces 221 is the front-rear direction, the thickness direction of the first abutment pieces 221 is the left-right direction, the height direction of the first abutment pieces 221 is the up-down direction, the two first abutment pieces 221 are arranged at intervals in the left-right direction to form an insertion space 21 between the two first abutment pieces 221, the two first abutment pieces 221 are inclined to extend from bottom to top and relatively close, and the two first abutment pieces 221 are movable toward and away from each other.

The tab located in the grafting space is abutted against the inner wall surface of the first abutting piece, on one hand, the first abutting piece is distributed at intervals along the thickness direction of the first abutting piece, so that smooth deformation movement of the first abutting piece can be guaranteed, and on the other hand, the abutting area of the first abutting piece and the tab can be guaranteed. Meanwhile, the pressure of the first abutting piece to the tab can also avoid relative shaking of the tab and the collector bar in the left-right direction.

In some embodiments, the abutment piece 22 further includes a second abutment piece 222, the thickness direction of the first abutment piece 221 is a first direction, the thickness direction of the second abutment piece 222 is a second direction, an included angle is formed between the first direction and the second direction, the dimension of the second abutment piece 222 in the first direction is smaller than the dimension of the first abutment piece 221 in the second direction, two adjacent second abutment pieces 222 are arranged at intervals along the second direction, and the plugging space 21 is located between two adjacent second abutment pieces 222.

As shown in fig. 1, the contact piece 22 further includes a second contact piece 222, the length direction of the second contact piece 222 is the left-right direction, the thickness direction of the second contact piece 222 is the front-back direction, the height direction of the second contact piece 222 is the up-down direction, the two second contact pieces 222 are arranged at intervals along the front-back direction, the insertion space 21 between the two first contact pieces 221 is simultaneously located between the two second contact pieces 222, and the tab located in the insertion space 21 abuts against the inner wall surface of the second contact piece 222, so that the limit effect of the tab in the front-back direction is achieved through the two second contact pieces 222, and the tab is prevented from shaking relatively in the left-right direction of the current collecting row.

The two second abutment plates 222 may be disposed between the two first abutment plates 221, and at this time, the left end face and the right end face of the second abutment plates 222 extend from bottom to top and are disposed in a relatively close inclination, so as to avoid interference with the second abutment plates 222 when the two first abutment plates 221 are relatively close. It is also possible to provide that two first abutment pieces 221 are located between two second abutment pieces 222, and it is also possible to provide that the first abutment pieces 221 and the second abutment pieces 222 are arranged at intervals around the center line of the first through hole 11. Preferably, the first abutment piece 221 and the second abutment piece 222 are arranged at intervals around the center line of the first through hole 11.

The two second abutment pieces 222 may be provided to extend vertically in the up-down direction, or may be provided to be inclined relatively close to each other, and may be relatively moved away and close to each other. Preferably, the two second abutment pieces 222 are provided to extend vertically in the up-down direction.

It will be appreciated that the plug assembly is not limited to having both first and second abutment tabs, and in other embodiments, the plug assembly has two first abutment tabs, but no second abutment tab.

In some embodiments, the wall of the abutment piece 22 facing the plugging space 21 has a positioning protrusion 223 and/or a positioning groove, wherein the positioning protrusion 223 is used for being embedded into a groove or a positioning hole 303 on the tab 302, and the positioning groove is used for being embedded into a protrusion on the tab 302.

As shown in fig. 3 and 6, the inner wall surface of one of the first contact pieces 221 has a positioning protrusion 223, the tab 302 is a rectangular piece adapted to the plugging space 21, the end surface of the tab 302, which is used for abutting against the first contact piece 221, is provided with a positioning hole 303, and when the tab 302 is located in the plugging space 21, the positioning protrusion 223 is embedded in the positioning hole 303 to play a role in positioning and fixing.

It will be appreciated that the tab is not limited to having a locating hole, and in other embodiments, the tab has a recess for the locating boss 223 to be embedded in, or the tab has a boss, the abutment tab has a locating recess, and the boss is embedded in the locating recess.

In some embodiments, the substrate 1 has a plurality of first through holes 11, the plug assembly 2 is a plurality of, and the plug spaces 21 of the plug assemblies 2 are in one-to-one correspondence with the plurality of first through holes 11.

In the embodiment shown in fig. 1 to 3, the substrate 1 has six first through holes 11, the six first through holes 11 are arranged in two rows arranged at intervals in the left-right direction, each row has three first through holes 11 arranged at intervals in the front-rear direction, the number of the plug assemblies 2 is six, and the six plug assemblies 2 are in one-to-one communication with the six first through holes 11. So that the current collector is connected with six lugs in an inserting way.

In the embodiment shown in fig. 4, the substrate 1 has three first through holes 11, and the three first through holes 11 are arranged at intervals in the front-rear direction. So that the current collector is connected with the three lugs in an inserting way.

In some embodiments, the substrate 1 includes a board body 12 and a bending portion 13, where the plug assembly 2 and the first through hole 11 are disposed on the board body 12, and the bending portion 13 forms an included angle with the board body 12.

In the embodiment shown in fig. 4, the substrate 1 includes a plate body 12 and a bending portion 13, the plate body 12 extends in a horizontal direction, the bending portion 13 extends downward from an edge of the plate body 12, and preferably, the bending portion 13 is disposed perpendicular to the plate body 12. The plug assembly 2 and the first through hole 11 are provided on the plate body 12.

The bending part is used for connecting when the battery modules are connected in series.

It will be appreciated that the substrate is not limited to comprising a plate body and a bend, and in the embodiment shown in fig. 1, the substrate does not have a bend.

As shown in fig. 1 to 6, the battery module according to the embodiment of the present utility model includes a support 200, a collector bar 100, and a battery cell 300.

The bracket 200 has a second through hole 201. The current collector 100 is an embodiment of the present utility model, the substrate 1 is connected to one end of the support 200, and the first through holes 11 are in communication with the second through holes 201. The battery cell 300 comprises a battery cell main body 301 and a tab 302, the battery cell main body 301 is arranged at the other end of the bracket 200, the tab 302 is arranged on the battery cell main body 301, and the tab 302 is arranged in the second through hole 201, the first through hole 11 and the plug-in space 21 in a penetrating manner.

As shown in fig. 5, the battery cell 300 includes a battery cell main body 301 and a tab 302, the battery cell main body 301 extends along the up-down direction, one tab 302 is provided at the upper end of the battery cell main body 301, and the other tab 302 is provided at the lower end of the battery cell main body 301.

The support 200 has a plurality of second through holes 201 penetrating the support 200 along the up-down direction, the support 200 is arranged to be sequentially arranged along the up-down direction, the two supports 200 are symmetrically arranged and connected along the up-down direction, the cell main body 301 of the plurality of cells 300 is arranged between the two supports 200, the plurality of lugs 302 at the upper end penetrate out from the plurality of second through holes 201 of the upper support 200 in a one-to-one correspondence manner, and the plurality of lugs 302 at the lower end penetrate out from the plurality of second through holes 201 of the lower support 200 in a one-to-one correspondence manner. Preferably, one end of the support 200 facing the battery cell main body 301 is provided with a plurality of connecting grooves, the plurality of battery cell main bodies 301 are inserted in the plurality of connecting grooves in a one-to-one correspondence manner, and the outer wall surface of the battery cell main body 301 is abutted with the inner wall surface of the connecting groove so as to limit the battery cell main body 301.

The end of the support 200, which is far away from the battery core main body 301, is provided with a plurality of current collecting rows 100, the substrate 1 of the current collecting rows 100 is propped against the end face of the support 200 and is connected with the current collecting rows through screws, a plurality of first through holes 11 and a plurality of plug-in spaces 21 of the current collecting rows 100 are correspondingly communicated with a plurality of second through holes 201 of the support 200 one by one, and the lugs 302 penetrating out of the second through holes 201 extend into the corresponding first through holes 11 and the corresponding plug-in spaces 21 and are propped against and connected with the plug-in components.

When the battery module is assembled, the lugs of the battery core are inserted into the bracket and the current collector to realize connection, and when the battery core needs to be disassembled or replaced, the lugs of the battery core are pulled out of the corresponding second through holes, the first through holes and the plugging space.

Meanwhile, when part of the battery cells in the plurality of battery cells are damaged, the damaged part of the battery cells can be pulled out to be separated from the bracket and the current collecting rows, and the damaged part of the battery cells are replaced, and in the mode that the current collecting rows are connected with the electrode lugs in a welding way in the related technology, when the part of the battery cells are damaged, the current collecting rows and all the battery cells are required to be replaced, so that the battery module provided by the embodiment of the utility model avoids the waste of the battery cells, and can effectively reduce the cost.

In some embodiments, one end of the bracket 200 has a mounting slot 202 and the header 100 is positioned within the mounting slot 202.

As shown in fig. 5, the end of the bracket 200 away from the cell main body 301 has a mounting groove 202, the collector bar 100 is located in the mounting groove 202, and the substrate 1 abuts against the bottom surface of the mounting groove 202 and is connected by a screw.

When a plurality of battery modules are sequentially arranged in the vertical direction and connected in series, the current collecting rows are positioned in the mounting grooves, so that the adjacent current collecting rows in the two adjacent battery modules can be prevented from interfering, and meanwhile, the end covers of the batteries can be prevented from interfering with the current collecting rows, so that the mounting grooves can play a role in protecting the current collecting rows.

In the description of the present utility model, it should be understood that the terms "length," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between and not for indicating or implying a relative importance or an implicit indication of the number of features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., 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 are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (10)

1. A manifold, comprising:

a substrate (1), wherein the substrate (1) is provided with a first through hole (11), and the first through hole (11) is used for a tab (302) to pass through;

the plug-in assembly (2), plug-in assembly (2) have plug-in space (21), plug-in assembly (2) are established on base plate (1), just plug-in space (21) with first through-hole (11) intercommunication is used for lug (302) are inlayed and are established in plug-in space (21).

2. The collector bar according to claim 1, wherein the plug assembly (2) comprises at least two abutment plates (22), at least two abutment plates (22) being arranged around the centre line of the first through hole (11) such that the plug space (21) is formed between at least two abutment plates (22).

3. The collector bar according to claim 2, wherein the abutment tab (22) extends in a direction away from the base plate (1) and is obliquely arranged towards the centre line of the first through hole (11), the abutment tab (22) being movable in a direction towards and away from the centre line of the first through hole (11).

4. A collector bar according to claim 3, wherein the abutting pieces (22) comprise first abutting pieces (221), adjacent two of the first abutting pieces (221) are arranged at intervals along the thickness direction of the first abutting pieces (221), the plugging space (21) is located between the adjacent two of the first abutting pieces (221), and the adjacent two of the first abutting pieces (221) can be close to and away from each other.

5. The collector bar according to claim 4, wherein the abutting pieces (22) further comprise second abutting pieces (222), the thickness direction of the first abutting pieces (221) is a first direction, the thickness direction of the second abutting pieces (222) is a second direction, an included angle is formed between the first direction and the second direction, the size of the second abutting pieces (222) in the first direction is smaller than the size of the first abutting pieces (221) in the second direction, two adjacent second abutting pieces (222) are arranged at intervals along the second direction, and the plugging space (21) is located between the two adjacent second abutting pieces (222).

6. A collector bar according to claim 3, characterized in that the wall of the abutment tab (22) facing the plug space (21) has a positioning projection (223) and/or a positioning groove, the positioning projection (223) being intended to be inserted into a groove or a positioning hole (303) on the tab (302), the positioning groove being intended to be inserted into a projection on the tab (302).

7. The collector bar according to claim 1, wherein the substrate (1) is provided with a plurality of first through holes (11), the plug-in components (2) are provided in a plurality, and plug-in spaces (21) of the plug-in components (2) are communicated with the first through holes (11) in a one-to-one correspondence manner.

8. The collector bar according to claim 1, wherein the base plate (1) comprises a plate body (12) and a bending part (13), the plug assembly (2) and the first through hole (11) are arranged on the plate body (12), and an included angle is formed between the bending part (13) and the plate body (12).

9. A battery module, comprising:

-a bracket (200), the bracket (200) having a second through hole (201);

a current collector (100), wherein the current collector (100) is a current collector according to any one of claims 1-8, the substrate (1) is connected to one end of the bracket (200), and the first through hole (11) is communicated with the second through hole (201);

the battery cell (300), electric core (300) include electric core main part (301) with utmost point ear (302), electric core main part (301) are established the other end of support (200), utmost point ear (302) are established on electric core main part (301), just utmost point ear (302) wear to establish second through-hole (201), first through-hole (11) with in grafting space (21).

10. The battery module according to claim 9, wherein one end of the bracket (200) has a mounting groove (202), and the collector bar (100) is located in the mounting groove (202).