CN218039718U

CN218039718U - Current collecting component, end cover assembly, battery module and electric equipment

Info

Publication number: CN218039718U
Application number: CN202222024324.1U
Authority: CN
Inventors: 王烽; 郭琨
Original assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Current assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-12-13
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a mass flow component, end cover subassembly, battery module and consumer. The current collecting member includes: the battery cell comprises an adapter piece, a battery cell body and a battery cell, wherein the adapter piece comprises a first side wall and a second side wall which are opposite to each other, the second side wall is configured to be opposite to the battery cell body, and a lug is connected to the battery cell body; and a tab connecting piece connected with the first side wall, wherein the edge of the second side wall opposite to the tab is provided with a tab chamfer inclined plane. According to the current collecting component, the lug chamfer inclined plane is arranged on the edge of the part of the second side wall opposite to the lug, so that the lug can not be directly in direct opposite contact with the sharp side edge even if the lug is in contact with the part of the second side wall, the risk that the lug is scratched or cut is reduced, and the fault rate of a battery is reduced.

Description

Current collecting component, end cover assembly, battery module and electric equipment

Technical Field

The utility model relates to a battery technology field, in particular to mass flow component, end cover subassembly, battery module and consumer.

Background

At present, the battery module includes end cover subassembly and electric core, and the end cover subassembly is including the adaptor, and the utmost point ear of utmost point post and electric core is connected to the adaptor. However, in the related art, the edge angles of the side edges of the adaptor are all designed to be right angles, which is prone to generate burrs, burrs and the like during processing, so that the tabs are prone to being cut or torn when the adaptor is lapped with the tabs, resulting in battery failure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses embodiment provides a mass flow component, end cover subassembly, battery module and consumer.

The utility model discloses embodiment's a mass flow component, include:

the adapter comprises a first side wall and a second side wall which are opposite to each other, the second side wall is configured to be opposite to the battery cell body, and a lug is connected to the battery cell body; and

a tab connector connected to the first side wall,

wherein a tab chamfer slope is provided at an edge of a portion of the second sidewall configured to be opposite to the tab.

According to the current collecting component, the lug chamfer inclined plane is arranged on the edge of the part of the second side wall opposite to the lug, so that the lug can not be directly in direct opposite contact with the sharp side edge even if the lug is in contact with the part of the second side wall, the risk that the lug is scratched or cut is reduced, and the fault rate of a battery is reduced.

In certain embodiments, the chamfer angle of the chamfer of the tab is selected from the range (0 °,90 °).

In certain embodiments, the second side wall includes a first side portion, a bottom portion and a second side portion, the bottom portion connecting the first side portion and the second side portion, the first side portion being configured to be opposite the location of the tab.

In some embodiments, the tab connector comprises:

a first connecting portion connecting the first side wall, an

The second connecting portion is connected with the first connecting portion through a bent portion and used for connecting the pole lugs.

In some embodiments, the second connection portion overlies the first connection portion.

In some embodiments, the tab connection member is disposed at a lower half of the adaptor, and the adaptor is shaped to gradually decrease in width from top to bottom.

In some embodiments, the tab connector and the adaptor are connected as a single structure, or the tab connector and the adaptor are of a split structure.

In certain embodiments, the tab connector is a unitary structure.

In some embodiments, the tab connectors are of uniform thickness.

In some embodiments, the second sidewall has a groove formed thereon and recessed toward the first sidewall, and the first sidewall has a protrusion formed thereon corresponding to the groove.

In some embodiments, the adaptor is connected to a pole connector, and the adaptor and the pole connector are connected to form an integral structure.

The utility model discloses end cover assembly of embodiment includes the mass flow component of any above-mentioned embodiment.

The utility model discloses embodiment's a battery includes above-mentioned embodiment's end cover assembly.

In certain embodiments, the battery includes a cell including a tab, and the tab chamfer is disposed opposite the tab.

In certain embodiments, the battery includes a cell including a tab that overlaps the tab chamfer.

The utility model discloses embodiment's a battery module includes above-mentioned embodiment's battery.

The utility model discloses embodiment's a consumer, a serial communication port, including above-mentioned embodiment's battery module.

Above-mentioned end cover subassembly, battery module and consumer through being in with utmost point ear relative the position edge of second lateral wall is provided with utmost point ear chamfer inclined plane for even this position contact of utmost point ear and second lateral wall, can not direct and sharp side edge face to the contact, reduced the risk that utmost point ear is by fish tail or cut apart, reduced the fault rate of battery.

Additional aspects and advantages of the invention 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 invention.

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 schematic perspective view of a current collecting member according to an embodiment of the present invention;

fig. 2 is another perspective view of a current collecting member according to an embodiment of the present invention;

fig. 3 is a partial top view of a current collecting member according to an embodiment of the present invention;

fig. 4 is a schematic view of a tab connector and an adaptor according to an embodiment of the present invention;

fig. 5 is a perspective schematic view of an end cap assembly according to an embodiment of the present invention;

FIG. 6 is a partially exploded schematic view of an end cap assembly according to an embodiment of the present invention;

fig. 7 is another perspective view of an end cap assembly according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a battery according to an embodiment of the present invention;

fig. 9 is another perspective view of the battery according to the embodiment of the present invention.

Description of the reference numerals: the battery comprises a current collecting component-100, an adaptor-12, a tab connector-14, a first side wall-16, a second side wall-18, a body-20, a battery core-200, a tab-22, a tab chamfer-inclined plane-24, a lower half-26, a first side portion-28, a bottom portion-30, a second side portion-32, a first connecting portion 34, a second connecting portion-36, an upper half portion-38, a groove-40, a protrusion-42, a post connector-44, a post-46, a stepped hole-48, an end cover-50, an end cover assembly-300 and a battery-400.

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 by referring to the drawings are exemplary only for the purpose of explaining 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 "on" or "under" the second feature may include the first and second features being in direct contact, and may also 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 "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply 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 invention. In order to simplify the disclosure of embodiments of the present invention, 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 present invention may repeat reference numerals and/or reference letters in the various examples for purposes of 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. 1-2 and 8-9, a current collecting member 100 according to an embodiment of the present invention includes an adapter 12 and a tab connection 14. The adaptor 12 includes first and second

opposing sidewalls

16, 18, the second sidewall 18 being configured to oppose the cell 200 body 20, and a tab 22 connected to the cell 200 body 20. The tab connection member 14 is provided on the first side wall 16. Wherein the edge of the portion of the second side wall 18 disposed opposite to the tab 22 is provided with a tab chamfer 24.

The current collecting member 100 is provided with the tab chamfer 24 at the edge of the second side wall 18 opposite to the tab 22, so that even if the tab 22 is in contact with the second side wall 18, the tab does not directly face the sharp side edge, the risk of scratching or cracking the tab 22 is reduced, and the failure rate of the battery 400 is reduced.

Specifically, the tab chamfer 24 has a chamfer surface, which may be a flat surface, and the chamfer surface may face the tab 22. When the tab 22 of the battery cell 200 contacts the tab chamfer inclined plane 24, the tab 22 is also lapped on the tab chamfer inclined plane 24, and the contact area formed by the two is large, so that the tab 22 cannot directly face to the sharp side edge, the risk that the tab 22 is scratched or cut is reduced, and the failure rate of the battery 400 is reduced

The tab chamfer 24 serves as a guide surface for bending the tab 22, and prevents the edge of the adaptor 12 from directly contacting the tab 22 (particularly, when burrs are generated) and cutting the tab 22.

The battery cell 200 may include a body 20 and two tabs 22, where the two tabs 22 are respectively disposed at left and right sides of the body 20, and the two tabs 22 may be a positive tab and a negative tab, respectively. The first sidewall 16 may be a sidewall facing away from the body 20 of the battery cell 200, and the second sidewall 18 may be a sidewall facing toward the body 20 of the battery cell 200.

A tab connector 14 is connected to each tab 22, for example, the tab 22 and the tab connector 14 may be connected by welding, however, the connection method of the embodiment of the present invention is not limited thereto, and other connection methods may be used.

In one example, the material of the tab connector 14 connected to the positive tab may be aluminum, and the material of the tab connector 14 connected to the negative tab may be copper. In other examples, the material of the tab connection member 14 is not limited to aluminum and copper, but may be other conductive materials. The tab connectors 14 connecting the positive tab and the negative tab may be made of different materials or the same material. The tab connector 14 connected to the positive tab and the tab connector 14 connected to the negative tab may have the same or different structures.

One battery 400 may include a single number of cells 200 or two or more. Two or more battery cells 200 may be arranged side by side. In the illustrated embodiment, one battery 400 includes a single battery cell 200.

In the present embodiment, the tab connection member 14 is provided in the lower half 26 of the adaptor 12, the lower half 26 of the adaptor 12 is substantially rectangular, the second side wall 18 is also substantially rectangular in the portion of the lower half 26 of the adaptor 12, and the edge of the second side wall 18 where the tab chamfer 24 is provided may be a front edge of the rectangle.

In certain embodiments, referring to fig. 3, the chamfer angle a of the tab chamfer 24 is selected from the range (0 °,90 °). Thus, the chamfer angle is appropriate.

Specifically, the chamfer angle a is selected from the range (0 °,90 °), that is, 0 ° < a <90 °.

The chamfer angle a may be 5 °, 10 °, 25 °, 30 °, 40 °, 50 °, 65 °, 70 °, 80 °, 85 °, or other values between 0 ° and 90 °, which are not particularly limited herein.

In addition, the chamfer of the tab chamfer 24 may be generally set to C0.1-C1.

In certain embodiments, the second side wall 18 includes a first side 28, a bottom 30, and a second side 32, the bottom 30 connecting the first side 28 and the second side 32, the first side 28 being configured to be opposite the tab 22. In this way, the risk of the tab 22 being scratched or cut can be reduced, reducing the failure rate of the battery 400.

Specifically, in the present embodiment, the tab connection member 14 is provided in the lower half 26 of the adaptor 12, the lower half 26 of the adaptor 12 is substantially rectangular, and the second side wall 18 is also substantially rectangular in the area of the lower half 26 of the adaptor 12. The first side 28 may be the side on which the front edge of the rectangle is located, the bottom 30 may be the side on which the bottom edge of the rectangle is located, and the second side 32 may be the side on which the back edge of the rectangle is located.

When the adaptor 12 is disposed on the side of the battery cell 200 (e.g., on the left side or the right side), the first side portion 28 is generally opposite to the tab 22, and the edge of the first side portion 28 is provided with the tab chamfer 24, so that even if the tab 22 contacts the edge of the first side portion 28, the tab 22 contacts the tab chamfer 24, the tab 22 does not directly face the sharp side edge, the risk of scratching or cutting the tab 22 is reduced, and the failure rate of the battery 400 is reduced.

In one embodiment, the edges of the bottom 30 and second side 32 may also be provided with chamfered bevels. The tab chamfer 24 is preferably long enough to cover the portion facing the tab 22. The width of the tab chamfer 24 may be set according to actual requirements.

In certain embodiments, the tab connector 14 includes a first connection portion 34 and a second connection portion 36, the first connection portion 34 connecting the first side wall 16. Referring to fig. 2 and 4, the second connecting portion 36 is connected to the first connecting portion 34 through a bent portion 37, and the second connecting portion 36 is used for connecting the tab 22. In this manner, the tab connector 14 can be easily connected to the adaptor 12.

Specifically, the tab connection member 14 may be connected to the adaptor member 12 by connecting the first connection portion 34 to the first side wall 16. The first connection 34 may be a transition connection, and the first connection 34 may be connected to the first sidewall 16 by welding.

The second connection portion 36 may serve as a tab connection portion and extend in a direction away from the battery cell 200. The second connection portion 36 connects the tab 22 of the battery cell 200, and in particular, the tab 22 may be connected on the front side of the second connection portion 36. After the folding, the tab 22 goes around the bent portion 37, and the tab 22 is positioned on the left side of the second connection portion 36 (tab connection portion). The bent portions 37 may be provided at intermediate positions of the tab connecting member 14.

In the present embodiment, the tab connector 14 and the adaptor 12 are separate structures, and the tab connector 14 and the adaptor 12 may be manufactured separately and then the tab connector 14 and the adaptor 12 may be connected by the connection of the first connection portion 34 and the first sidewall 16.

In some embodiments, the second connection portion 36 overlies the first connection portion 34. In this way, the space occupied by the current collecting member 100 on the side of the battery cell 200 body 20 can be reduced.

Specifically, before the folding, referring to fig. 1, the first connecting portion 34 is perpendicular to the second connecting portion 36, the tab connecting member 14 is substantially in an L-shaped structure, when the second connecting portion 36 is connected to the tab 22, the tab 22 can be in direct contact with the second connecting portion 36 (see the drawing), the contact area between the two is large, and during the welding operation, the connection between the second connecting portion 36 and the tab 22 is easy to achieve, and the connection is firm. The term perpendicular may refer to an angle between the two being in degrees, or a deviation of the angle from the degrees being within a predetermined range or an error range.

Thereafter, the tab 22 may be folded back in the direction toward the inside of the tab connecting member 14 so that the tab 22 covers the second connection portion 36 on the first connection portion 34, the second connection portion 36 and the first connection portion 34 are in contact at the covered portion, and the tab 22 is positioned on the outermost side (see fig. 9). The tab 22, the second connection portion 36 and the first connection portion 34 form a stacked structure, so that the occupied space of the current collecting member 100 on the side of the battery cell 200 body 20 is reduced, and the tab 22 is prevented or reduced from being scratched by the inner wall of the side surface of the battery case.

In certain embodiments, the tab connection member 14 is disposed in the lower half 26 of the adaptor 12, and the adaptor 12 is shaped to decrease in width from top to bottom. In this way, the adaptor 12 can be easily installed.

Specifically, the lower half portion 26 of the adapter 12 is narrower than the upper half portion 38 of the adapter 12, so that the lower half portion 26 of the adapter 12 is more easily inserted into the side surface of the cell 200 body 20 to connect the tab connector 14 with the tab 22, and the lower half portion 26 of the adapter 12 can be directly opposite to the side surface of the cell 200 body 20.

Further, the width of the lower half portion 26 of the adaptor 12 is smaller than the width of the side surface of the battery cell 200 body 20, so that the lower half portion 26 of the adaptor 12 can be completely shielded by the side surface of the battery cell 200 body 20, and the lower half portion 26 of the adaptor 12 does not protrude from the side surface of the battery cell 200 body 20 in the front-back and vertical directions, so that the adaptor 12 is not easily damaged.

In the illustrated embodiment, the upper half 38 of the adapter 12 is tapered from top to bottom, and the width of the lower half 26 of the adapter 12 may be constant as a whole or vary slightly. The front and rear sides of the upper half 38 of the adaptor 12 are curved to reduce the formation of right-angled edges and avoid scratching the tabs 22, membranes or other components of the cell 200.

In addition, in the illustrated embodiment, the entire edge of the second sidewall 18 of the adaptor 12 is provided with a chamfer slope, so that arc-shaped grooves formed in the front and rear sides of the upper half 38 of the adaptor 12 can be machined, and the generation of convex burrs is reduced.

Compared with the equal-width design of the adaptor, in the embodiment, the adaptor 12 is in a shape with gradually reduced width from top to bottom, so that the occupied space in the battery 400 can be reduced, the limitation on the bending position of the tab 22 is less, and the pulling of the folded tab 22 is reduced.

In certain embodiments, the tab connector 14 is connected to the adaptor 12 as a unitary structure. In this way, the strength of the connection of the tab connection element 14 to the adapter element 12 can be increased.

Specifically, the tab connector 14 is connected to the adaptor 12 as a unitary structure, that is, the tab connector 14 is connected to the adaptor 12 as a unitary structure. The unitary structural member may be formed by stamping and bending a sheet of material (e.g., sheet metal). In the integrated structure, the connection strength between the tab connecting piece 14 and the adaptor piece 12 is high.

Further, when the tab connector 14 is connected to the adaptor 12 as an integral structure, the tab connector 14 can be a component for connecting the tab 22, and directly extends from one side (the front side as shown in fig. 1) of the adaptor 12 to a direction away from the battery cell 200 body 20.

In certain embodiments, the tab connector 14 and the adaptor 12 are of a split construction. In this way, material waste can be reduced.

Specifically, the tab connector 14 and the adaptor 12 are of a split structure, that is, the tab connector 14 and the adaptor 12 can be separately manufactured and then connected together, for example, by welding. When one of the parts does not meet the design requirement, only the part which does not meet the design requirement needs to be abandoned, and the whole current collecting component 100 does not need to be abandoned, thereby reducing the material waste.

In one embodiment, the tab connection element 14 comprises a first connection portion 34 and a second connection portion 36, by means of which the connection of the tab connection element 14 to the adapter element 12 can be effected by means of the connection to the first side wall 16 of the adapter element 12.

In certain embodiments, the tab connector 14 is a one-piece structure. In this way, the tab connection member 14 is easily manufactured.

Specifically, in one embodiment, the tab connection member 14 includes a first connection portion 34 and a second connection portion 36, and the tab connection member 14 is of an integral structure, that is, the first connection portion 34 and the second connection portion 36 are connected as an integral structure. The tab connection member 14 of the integrated structure is easy to manufacture.

The first connecting portion 34 and the second connecting portion 36 are connected to form an integral structure, that is, the first connecting portion 34 and the second connecting portion 36 are connected to form an integral structure, so that the first connecting portion 34 and the second connecting portion 36 are connected more firmly, and the structural strength of the tab connecting member 14 is improved. When the tab connecting piece is folded, the first connecting portion 34 and the second connecting portion 36 are not easily broken from the bent portion 37, so that the yield of the tab connecting piece 14 is improved.

In manufacturing the tab connection member 14, a plate member (e.g., an aluminum plate) may be punched to form a plate member having a desired shape, and then bent at a certain position of the plate member to form the first connection part 34 and the second connection part 36, and the bent portion is formed as the bent portion 37.

In some embodiments, the tab connection member 14 has a uniform thickness. Thus, the tab connection member 14 has uniform structural strength.

Specifically, the tab connection member 14 has a uniform thickness structure, that is, the thickness of the first connection portion 34 is the same as that of the second connection portion 36, so that the structural strength of the tab connection member 14 is substantially the same at each position, and the tab connection member is prevented from being broken at a place where the structural strength is weak.

In some embodiments, the second sidewall 18 has a recess 40 formed therein that is recessed toward the first sidewall 16, and the first sidewall 16 has a protrusion 42 formed therein that corresponds to the recess 40. In this way, the structural strength of the adaptor 12 may be increased.

Specifically, by forming the groove 40 in the second sidewall 18 and forming the protrusion 42 corresponding to the groove 40 on the first sidewall 16, stress concentration on the adaptor 12 may be reduced, and the structural strength of the adaptor 12 may be improved.

In some embodiments, the adaptor 12 is connected to the post connector 44, and the adaptor 12 and the post connector 44 are connected as a unitary structure. In this way, the connection strength between the adaptor 12 and the pole connector 44 can be improved.

Specifically, in the illustrated embodiment, the pole connector 44 is substantially perpendicular to the adaptor 12. The pole connectors 44 may be arranged in a horizontal direction and the adapters 12 may be arranged in a vertical direction. The pole connector 44 is used to connect the pole 46 of the end cap assembly 300.

The post connector 44 is provided with a stepped bore 48, and one end of the post 46 can be seated against the stepped bore 48 and then the post 46 and the post connector 42 can be connected by welding.

The adaptor 12 and the post connector 44 are connected as a unitary structure, that is, the adaptor 12 and the post connector 44 are connected to form a unitary structural member, which may be a structural member with an equal thickness. During manufacturing, the integral structural member can be formed by stamping and bending a metal plate with equal thickness.

Further, in one embodiment, the pole connector 44, the adaptor 12 and the tab connector 14 are joined as a unitary structure. In this manner, the structural strength of the current collecting member 100 connecting the tab 22 of the battery cell 200 and the pole 46 of the end cap assembly 300 can be ensured.

Referring to fig. 5 to 7, an end cap assembly 300 according to an embodiment of the present invention includes the current collecting member 100 according to any one of the embodiments.

The end cap assembly 300 reduces the risk of the tab 22 being scratched or cut and reduces the failure rate of the battery 400 by providing the tab chamfered chamfer 24 on the edge of the second side wall 18 opposite the tab 22 so that even if the tab 22 contacts the second side wall 18, the tab does not directly contact the sharp side edge.

Specifically, the end cap assembly 300 further includes an end cap 50, a post 46, an explosion-proof valve, and the like. The end cap 50 is provided with two through holes, the pole 46 comprises a positive pole and a negative pole, the positive pole penetrates through one of the through holes, and the negative pole penetrates through the other through hole. The end cap assembly 300 may include two current collecting members 100, one of which is a positive current collecting member and the other of which is a negative current collecting member, wherein the positive current collecting member connects the positive tab and the positive post of the battery cell 200 to electrically connect the positive tab and the positive post. The negative current collecting member connects the negative tab and the negative post of the battery cell 200 to electrically connect the negative tab and the negative post.

Referring to fig. 8 and 9, a battery 400 according to an embodiment of the present invention includes the end cap assembly 300 according to the above embodiment.

In the battery 400, the tab chamfer slope 24 is arranged on the edge of the part of the second side wall 18 opposite to the tab 22, so that even if the tab 22 is in contact with the part of the second side wall 18, the tab cannot be directly in direct opposite contact with the sharp side edge, the risk of scratching or cutting the tab 22 is reduced, and the failure rate of the battery 400 is reduced.

Specifically, the battery 400 further includes a battery cell 200 (e.g., a bare cell) and a casing (not shown). In the illustrated embodiment, the battery 400 includes a single battery cell 200. Compared with the battery 400 with a double-battery-core structure, the battery 400 with a single battery core is beneficial to improving the productivity, and has simpler assembly process and lower cost.

Battery cell 200 includes body 20 and sets up two utmost point ears 22 that carry on the back mutually both sides at body 20 respectively: a positive tab and a negative tab. The positive tab is located on the left side of the body 20, and the negative tab is located on the right side of the body 20.

The battery cell 200 may be housed within a housing, the housing having an open top. The end cap assembly 300 covers the top opening of the housing. The adapter 12 projects into the gap between the battery cell 200 and the housing, and the tab connection 14 connects the tabs 22 of the battery cell 200.

In certain embodiments, the tab chamfer 24 is disposed opposite the tab 22. Therefore, the tab 22 can be prevented from directly and oppositely contacting with the sharp side edge, the risk that the tab 22 is scratched or cut is reduced, and the failure rate of the battery is reduced.

Specifically, the tab chamfer 24 is disposed opposite to the tab 22, and the opposite disposition may be a spaced-apart opposite disposition or a contact opposite disposition. The tab chamfer 24 does not scratch the tab 22, whether in spaced or contacting opposition.

In certain embodiments, the tab 22 overlaps the tab chamfer 24. In this way, the tab chamfer 24 can support the tab 22 to prevent the tab 22 from deforming.

Specifically, utmost point ear 22 overlap joint is on utmost point ear chamfer inclined plane 24, and on the one hand, area of contact between them is big, and utmost point ear chamfer inclined plane 24 can not lead to the fact the fish tail to utmost point ear 22, and on the other hand, utmost point ear chamfer inclined plane 24 also can support utmost point ear 22 position on overlapping it, avoids this utmost point ear 22 position to warp when receiving the external force and influence life-span and battery performance.

The embodiment of the present invention provides a battery module including the battery 400 of the above embodiment.

In the battery module, the tab chamfer slope 24 is arranged on the edge of the part of the second side wall 18 opposite to the tab 22, so that even if the tab 22 is in contact with the part of the second side wall 18, the tab cannot be directly in direct opposite contact with the sharp side edge, the risk of scratching or cracking the tab 22 is reduced, and the failure rate of the battery 400 is reduced.

Specifically, the battery module may include one or more batteries 400. The plurality of cells 400 are electrically connected in series, in parallel, or in series-parallel. Plural may mean two or more than two.

The embodiment of the utility model provides a pair of consumer includes above-mentioned embodiment's battery module.

In the electric equipment, the tab chamfer slope 24 is arranged on the edge of the part of the second side wall 18 opposite to the tab 22, so that even if the tab 22 is in contact with the part of the second side wall 18, the tab cannot be directly in direct opposite contact with the sharp side edge, the risk that the tab 22 is scratched or cut is reduced, and the failure rate of the battery 400 is reduced.

Specifically, the electric device may include one or more battery modules, and the plurality of battery modules may be electrically connected in series, in parallel, or in series-parallel.

The powered devices include, but are not limited to, energy storage devices and vehicles. The energy storage equipment can be the energy storage container, and the energy storage container includes the box and sets up the battery cluster in the box, and the battery cluster includes cluster frame and a plurality of battery module, and a plurality of battery module are installed on the cluster frame. The energy storage device may also be a domestic energy storage cabinet.

The battery module can be applied to a vehicle as a power battery module. Vehicles include, but are not limited to, electric vehicles, hybrid vehicles, extended range electric vehicles, and the like.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like means 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 present invention. 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A current collecting member, comprising:

the battery cell comprises an adapter piece, a battery cell body and a battery cell, wherein the adapter piece comprises a first side wall and a second side wall which are opposite to each other, the second side wall is configured to be opposite to the battery cell body, and a lug is connected to the battery cell body; and

a tab connector connected to the first side wall,

2. The current collecting member of claim 1, wherein the chamfer angle of the tab chamfer is selected from the range (0 °,90 °).

3. The current collecting member of claim 1, wherein the second sidewall includes a first side, a bottom, and a second side, the bottom connecting the first side and the second side, the first side configured to be the location opposite the tab.

4. The current collecting member of claim 1, wherein the tab connector includes:

a first connecting portion connecting the first side wall, an

5. The current collecting member of claim 4, wherein the second connection portion overlies the first connection portion.

6. The current collecting member of claim 1, wherein the tab connector is disposed on a lower half of the adapter, the adapter being shaped to decrease in width from top to bottom.

7. The current collecting member as claimed in claim 1, wherein the tab connector and the adaptor are connected as a unitary structure or the tab connector and the adaptor are of a split structure.

8. The current collecting member of claim 1, wherein the tab connector is a unitary structure.

9. A current collecting member according to claim 1, characterized in that the tab connectors are of uniform thickness.

10. The current collecting member according to claim 1, wherein the second sidewall is formed with a groove depressed in a direction toward the first sidewall, and the first sidewall is formed with a protrusion corresponding to the groove.

11. The current collecting member according to claim 1, wherein the adaptor is connected to a pole connecting piece, and the adaptor and the pole connecting piece are connected as an integral structure.

12. An end cap assembly comprising the current collecting member of any one of claims 1-11.

13. A battery comprising the end cap assembly of claim 12.

14. The battery of claim 13, wherein the battery comprises a cell comprising a tab, and wherein the tab chamfer is disposed opposite the tab.

15. The battery of claim 13, wherein the battery comprises a cell including a tab that overlaps the tab chamfer.

16. A battery module comprising the battery according to any one of claims 13 to 15.

17. An electric device characterized by comprising the battery module according to claim 16.