CN218513637U - Battery with a battery cell - Google Patents

Abstract

The utility model relates to a battery technology field provides a battery, include: a housing; the battery cell is arranged in the shell and comprises a main body and a first lug, and the first lug extends out from one side of the main body; the first connecting piece is arranged in the shell and is bent into a first connecting section and a second connecting section, a first crease is formed between the first connecting section and the second connecting section, and the first connecting section is connected with the first pole lug; the first crease and the orthographic projection of the plane of the end face, where the first tab is arranged towards the main body, of the first tab do not coincide with each other, so that a reliable contact area between the first connecting section and the first tab can be ensured, the overcurrent capacity between the first connecting section and the first tab is ensured, and the safety use performance of the battery is improved.

Description

Battery with a battery cell

Technical Field

The utility model relates to a battery technology field especially relates to a battery.

Background

In the related art, the tab of the battery cell can be connected with the pole through the current collecting disc, and due to the structural limitation of the current collecting disc, the problem of large occupied space or weak structural stability is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery to improve the performance of battery.

The utility model provides a battery, include:

a housing;

the battery cell is arranged in the shell and comprises a main body and a first lug extending from one side of the main body;

the first connecting piece is arranged in the shell and is bent into a first connecting section and a second connecting section, a first crease is formed between the first connecting section and the second connecting section, and the first connecting section is connected with the first pole lug;

the first crease and the orthographic projection of the plane where the end face of the first tab, facing the main body, is provided with the first tab are not overlapped.

The utility model discloses battery includes casing, electric core and first adaptor, and electric core and first adaptor set up in the casing, and first adaptor is connected with the first utmost point ear of electric core. The first connecting piece is bent into the first connecting section and the second connecting section, a first crease is formed between the first connecting section and the second connecting section, on the basis that the first connecting section is conveniently connected with the first lug, the problem that the first connecting piece is low in structural strength due to the fact that the first connecting piece is bent too much can be solved, the first connecting piece can be prevented from occupying too much height space, the orthographic projection of the plane of the end face, provided with the first lug, of the first crease and the first lug towards the main body does not coincide with each other, the reliable contact area between the first connecting section and the first lug can be guaranteed, the overcurrent capacity between the first connecting section and the first lug is guaranteed, and the safety use performance of the battery is improved.

Drawings

For a better understanding of the present disclosure, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted so as to emphasize and clearly illustrate the technical features of the present disclosure. In addition, the relevant elements or components may be arranged differently as is known in the art. Further, in the drawings, like reference characters designate the same or similar parts throughout the several views. Wherein:

FIG. 1 is a schematic diagram of a battery shown in accordance with an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating a first exploded configuration of a battery according to an exemplary embodiment;

FIG. 3 is a second schematic exploded view of a battery according to an exemplary embodiment;

FIG. 4 is a schematic diagram of a partial cross-sectional structure of a battery according to an exemplary embodiment;

fig. 5 is a schematic diagram illustrating a partial structure of a battery according to an exemplary embodiment.

The reference numerals are illustrated below:

10. a housing; 11. a first housing member; 12. a second housing member; 20. an electric core; 21. a main body; 211. a core winding hole; 22. a first tab; 23. a second tab; 24. a separation zone; 241. a first portion; 242. a second portion; 243. a third portion; 30. a first transfer member; 31. a first connection section; 32. a second connection section; 33. a first fold; 40. a pole structure; 50. a second adaptor; 51. a third connection section; 52. a fourth connection section; 53. a second fold; 60. a separator.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is, therefore, to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.

In the description of the present disclosure, unless explicitly specified or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the" object or "an" object are also intended to mean one of possibly multiple such objects.

The terms "connected," "secured," and the like are to be construed broadly and encompass, for example, a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood by those skilled in the art as the case may be.

Further, in the description of the present disclosure, it is to be understood that the directional words "upper", "lower", "inner", "outer", etc., which are described in the exemplary embodiments of the present disclosure, are described at the angles shown in the drawings, and should not be construed as limiting the exemplary embodiments of the present disclosure. It will also be understood that, in this context, when an element or feature is referred to as being "on", "under", or "inner", "outer" with respect to another element(s), it can be directly on "," under ", or" inner "," outer "with respect to the other element(s), or indirectly on", "under", or "inner", "outer" with respect to the other element(s) via intervening elements.

An embodiment of the present invention provides a battery, please refer to fig. 1 to 5, the battery includes: a housing 10; the battery cell 20 is disposed in the casing 10, and the battery cell 20 includes a main body 21 and a first tab 22 extending from one side of the main body 21; the first connecting piece 30 is arranged in the shell 10, the first connecting piece 30 is bent into a first connecting section 31 and a second connecting section 32, a first crease 33 is formed between the first connecting section 31 and the second connecting section 32, and the first connecting section 31 is connected with the first tab 22; the first fold 33 does not coincide with an orthographic projection of the first tab 22 on a plane of the end surface of the main body 21 on which the first tab 22 is provided.

The utility model discloses a battery of an embodiment includes casing 10, electric core 20 and first adaptor 30, and electric core 20 and first adaptor 30 set up in casing 10, and first adaptor 30 is connected with the first utmost point ear 22 of electric core 20. The first connecting piece 30 is bent into a first connecting section 31 and a second connecting section 32, a first fold 33 is formed between the first connecting section 31 and the second connecting section 32, on the basis of facilitating connection of the first connecting section 31 and the first tab 22, the problem that the first connecting piece 30 is low in structural strength due to excessive bending of the first connecting piece 30 can be solved, too much height space occupied by the first connecting piece 30 can be avoided, orthographic projections of the first fold 33 and the first tab 22 on the plane where the end face of the main body 21 provided with the first tab 22 is located do not coincide with each other, a reliable contact area between the first connecting section 31 and the first tab 22 can be guaranteed, accordingly, the capability of the first connecting section 31 and the first tab 22 is guaranteed, and the safety overcurrent performance of the battery is improved.

It should be noted that the first connecting element 30 is bent into a first connecting section 31 and a second connecting section 32, and the first connecting section 31 can be connected to the first tab 22, and the second connecting section 32 can be connected to the pole structure or the housing 10. The first fold 33 is formed between the first connecting section 31 and the second connecting section 32, that is, there is no other section between the first connecting section 31 and the second connecting section 32, but the first connecting section 31 and the second connecting section 32 are directly connected, and a first fold 33 is formed, so as to reduce the number of times of bending the first connecting member 30, thereby ensuring that the first connecting member 30 has reliable structural strength, and avoiding the first connecting member 30 from occupying too large height space.

And the orthographic projection of the first fold 33 and the plane of the end face of the first tab 22, which faces the main body 21 and is provided with the first tab 22, is not coincident, that is, the first fold 33 is not positioned right above the first tab 22, at this time, it can be ensured that the first connecting section 31 has a relatively large area to be connected with the first tab 22, so that it is ensured that a sufficient contact area is provided between the first connecting section 31 and the first tab 22, and thus it is ensured that a reliable overcurrent capacity is provided between the first connecting section 31 and the first tab 22.

The first connection section 31 and the first tab 22 may be welded, the first junction element 30 may be made of a conductive material, further, the first junction element 30 may be made of a metal material, and the first junction element 30 may be an aluminum, copper or aluminum-copper composite structure, etc.

The first connecting member 30 is bent into the first connecting section 31 and the second connecting section 32, so as to form a first crease 33, and the first crease 33 may be a crease mark, i.e. a crease mark formed during the bending of the first connecting member 30. Alternatively, the first fold 33 may be a transition section formed by bending the first adapter 30, and does not necessarily have a distinct trace.

In one embodiment, the distance between the orthographic projection of the first fold 33 along the plane and one end of the first tab 22 close to the first fold 33 is 0.5mm-10mm, so that on the basis of ensuring the overall overcurrent capacity of the battery cell, the first fold 33 of the first rotating member 30 can be prevented from scratching the tab, more metal chips are generated, and the internal safety risk of the battery is caused.

When the distance between the orthographic projection of the first fold 33 along the plane and one end of the first tab 22 close to the first fold 33 is less than 0.5mm, the first fold 33 is close to the first tab 22, so that the risk that the first fold 33 scratches the first tab 22 exists, and if the first fold 33 scratches the first tab 22, more metal chips are generated, which causes the internal safety risk of the battery. And when the distance between the orthographic projection of the first fold 33 along the plane and one end of the first tab 22 close to the first fold 33 is greater than 10mm, the first fold 33 is too far away from the first tab 22, so that the area of the first tab 22 is small, and the overall overcurrent capacity of the battery cell is affected.

The distance between the orthographic projection of the first fold 33 along the plane and the end of the first tab 22 near the first fold 33 may be 0.5mm, 0.6mm, 0.7mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 9.7mm, 9.8mm, 9.9mm, or 10mm, etc.

In one embodiment, the second connection section 32 coincides with an orthographic projection of the first tab 22 on a plane where the end surface of the first tab 22 is located facing the main body 21, so that the second connection section 32 and the first connection section 31 can be overlapped up and down, thereby ensuring that the second connection section 32 and the first connection section 31 do not accumulate too high height space, and improving the space utilization rate of the battery.

In one embodiment, the first connecting section 31 and the second connecting section 32 are substantially parallel, which can facilitate the first connecting section 31 and the second connecting section 32 to be used for connecting with other structures on the basis of ensuring that the first connecting section 31 and the second connecting section 32 do not accumulate too large height space, thereby improving the connection strength of the battery.

It should be noted that the first connecting section 31 and the second connecting section 32 are substantially parallel, and it is emphasized here that the first connecting section 31 and the second connecting section 32 are parallel regardless of manufacturing errors and installation errors of the first connecting section 31 and the second connecting section 32.

In one embodiment, the ratio of the surface area of the side of the first connecting section 31 facing the first tab 22 to the surface area of the side of the first tab 22 facing the first connecting section 31 is greater than or equal to 0.8, so that the first connecting section 31 can have a reliable area to connect with the first tab 22, and reliable overcurrent capacity can be ensured between the first connecting section 31 and the first tab 22 on the basis of ensuring a reliable contact area between the first connecting section 31 and the first tab 22.

The surface area of the side of the first connection section 31 facing the first tab 22 may be greater than the surface area of the side of the first tab 22 facing the first connection section 31. Alternatively, the surface area of the side of the first connection section 31 facing the first tab 22 may be equal to the surface area of the side of the first tab 22 facing the first connection section 31. Alternatively, the surface area of the side of the first connection section 31 facing the first tab 22 may be smaller than the surface area of the side of the first tab 22 facing the first connection section 31.

The first connecting section 31 can completely cover the first tab 22, so that a reliable connection of the first connecting section 31 and the first tab 22 is ensured, for example, the first connecting section 31 and the first tab 22 are connected by welding, in which case it can also be ensured that the first connecting section 31 and the first tab 22 have a large surface area for welding.

In one embodiment, the surface area of the side of the second connection section 32 facing away from the first connection section 31 is smaller than the surface area of the side of the first connection section 31 facing the first tab 22, so as to ensure that the second connection section 32 can be connected to other structures as an electrode leading end of the first tab 22, for example, the second connection section 32 is connected to a housing or a pole structure, and the first adapter 30 can be prevented from being too heavy, thereby improving the energy density of the battery.

In one embodiment, as shown in fig. 1 to 4, the battery further includes a pole structure 40, the pole structure 40 is disposed on the housing 10, and the second connection section 32 is electrically connected to the pole structure 40 or the housing 10, so that the pole structure 40 or the housing 10 can be used as an electrode lead-out terminal of the first tab 22.

In one embodiment, as shown in fig. 2 and 3, the battery cell 20 further includes a second tab 23, the first tab 22 and the second tab 23 extend from the same side of the main body 21, the battery further includes a second adaptor 50, the second tab 23 is connected to the second adaptor 50, and the first adaptor 30 and the second adaptor 50 are disposed in an insulating manner; one of the second connection section 32 and the second adaptor 50 is connected to the pole structure 40, and the other is connected to the housing 10, so that the pole structure 40 and the housing 10 can be used as two electrode terminals of the battery, respectively, for charging and discharging the battery.

First utmost point ear 22 and second utmost point ear 23 extend by main part 21 with one side and can improve the inside whole space utilization of battery to casing 10 can be regarded as an electrode leading-out end of battery, can make things convenient for the connection when follow-up battery is in groups, and casing 10 area is great relatively, can guarantee to have reliable overcurrent area when the battery is in groups, with this whole charge-discharge rate of assurance battery. The first tab 22 and the second tab 23 are opposite in polarity.

For example, a first tab 22 on the main body 21 can be connected to the first connection section 31, while a second connection section 32 can be connected to the pole arrangement 40 and a second tab 23 can be connected to the second adapter 50. And the second adaptor 50 is connected to the housing 10, at which point the pole structure 40And the shell 10, the pole structure 40 and the shell 10 may be insulated by an insulating structure, which may be a plastic or rubber structure, or a coating, such as aluminum oxide (Al), for example ₂ O ₃ ) Zirconium oxide (ZrO) ₂ ) And the like.

It should be noted that, in some embodiments, it is not excluded that the first tab 22 and the second tab 23 may extend from two opposite sides of the main body 21, and in this case, the first tab 22 and the second tab 23 may be respectively connected to two pole structures, or the first tab 22 and the second tab 23 may be respectively connected to one pole structure and the housing, or the first tab 22 and the second tab 23 may be respectively connected to the first housing member 11 and the second housing member 12 of the housing 10, and in this case, the first housing member 11 and the second housing member 12 are disposed in an insulating manner.

In some embodiments, the first tab 22 and the second tab 23 may extend from the same side of the main body 21, and in this case, the first tab 22 and the second tab 23 may be respectively connected to two pole structures, or the first tab 22 and the second tab 23 may be respectively connected to the first shell member 11 and the second shell member 12 of the casing 10, and in this case, the first shell member 11 and the second shell member 12 are arranged in an insulating manner, and the first shell member 11 and the second shell member 12 may be distributed left and right, so as to ensure that the first tab 22 and the second tab 23 can be respectively connected to the first shell member 11 and the second shell member 12.

In one embodiment, as shown in fig. 4, the battery further includes an insulating spacer 60, and the first adaptor 30 and the second adaptor 50 are insulated by the insulating spacer 60, so as to avoid the risk of short circuit between the first adaptor 30 and the second adaptor 50, thereby improving the safety performance of the battery.

The insulating spacer 60 may be a plastic member, or the insulating spacer 60 may be a rubber member. The first and second adaptors 30, 50 may be removably connected to the insulating spacer 60, or at least one of the first and second adaptors 30, 50 may be non-removably connected to the insulating spacer 60, for example, at least one of the first and second adaptors 30, 50 may be integrally formed with the insulating spacer 60, for example, at least one of the insulating spacer 60 and the first and second adaptors 30, 50 may be injection molded.

In one embodiment, as shown in fig. 3, the second adaptor 50 is bent into a third connecting section 51 and a fourth connecting section 52, a second fold 53 is formed between the third connecting section 51 and the fourth connecting section 52, the third connecting section 51 is connected with the second tab 23, and on the basis of facilitating the connection between the third connecting section 51 and the second tab 23, the problem that the second adaptor 50 is too much bent to cause lower structural strength of the second adaptor 50 can be avoided, and the second adaptor 50 can be prevented from occupying too much height space.

The second fold 53 does not coincide with an orthographic projection of the second tab 23 on a plane of the end surface of the main body 21 on which the first tab 22 is disposed, so that a reliable contact area between the third connecting section 51 and the second tab 23 can be ensured, and the overcurrent capacity between the third connecting section 51 and the second tab 23 can be ensured.

The second interposer 50 may be made of a conductive material, further, the second interposer 50 may be made of a metal material, and the second interposer 50 may be an aluminum, copper or aluminum copper composite structure, etc.

The second adaptor 50 is bent into the third connecting section 51 and the fourth connecting section 52, so as to form a second fold 53, and the second fold 53 may be a fold mark formed during the bending of the second adaptor 50. Alternatively, the second fold 53 may be a transition section formed by bending the second adaptor 50, and may not have a distinct trace.

It should be noted that, the shapes of the first adapter 30 and the second adapter 50 may not be consistent, for example, the first adapter 30 may be connected to the post structure 40, at this time, the middle portion of the first adapter 30 may be provided with a through hole for the post structure 40 to penetrate through, that is, the middle portion of the second connection section 32 may be provided with a through hole for the post structure 40 to penetrate through, and the second adapter 50 may be connected to the housing 10, at this time, the second adapter 50 may not be provided with a similar through hole structure.

In one embodiment, the third connection section 51 and the fourth connection section 52 may be substantially parallel, and the area of the third connection section 51 may be smaller than that of the fourth connection section 52, and the third connection section 51 may completely cover the second tab 23, thereby ensuring the overcurrent capacity of the third connection section 51 and the second tab 23. The third connection section 51 and the second tab 23 may be welded. The first and second adaptors 30, 50 may be welded to the pole structure 40 and the housing 10, respectively.

In one embodiment, as shown in fig. 2 and 3, a separation region 24 is formed between the first tab 22 and the second tab 23, and the separation region 24 provides effective insulation between the first tab 22 and the second tab 23, thereby ensuring reliable insulation between the first tab 22 and the second tab 23.

In one embodiment, the separation region 24 may be substantially rectangular, for example, a gap may be formed at a middle position of the body 21, thereby ensuring that the first tab 22 and the second tab 23 have a reliable insulation gap.

In one embodiment, as shown in fig. 2 and 5, the separation zone 24 includes a first portion 241, a second portion 242 and a third portion 243, the first portion 241 connects the second portion 242 and the third portion 243, the area of the second portion 242 is smaller than that of the third portion 243, at least part of the first fold 33 and the second fold 53 is located directly above the third portion 243, so that the first fold 33 and the first tab 22 do not coincide with each other in an orthogonal projection of the first tab 22 to a plane where an end surface of the main body 21 provided with the first tab 22 is located, and the second fold 53 and the second tab 23 do not coincide with each other in an orthogonal projection of the second tab 23 to a plane where an end surface of the main body 21 provided with the first tab 22 is located, thereby ensuring that the first adaptor 30 and the second adaptor 50 can have a reliable contact area with the first tab 22 and the second tab 23.

In one embodiment, the center line of the first portion 241 coincides with the center line of the main body 21, that is, the center line of the first portion 241 may coincide with the center line of the winding core hole 211 of the main body 21, the first portion 241 is circular, the second portion 242 and the third portion 243 are respectively located at opposite sides of the first portion 241, the second portion 242 is substantially rectangular, and the third portion 243 is substantially trapezoidal, so that a reliable insulation gap between the first tab 22 and the second tab 23 can be ensured on the basis of ensuring that the first tab 22 and the second tab 23 have relatively large areas.

It should be noted that the second portion 242 is substantially rectangular, the edge of the second portion 242 coinciding with the main body 21 may be a circular arc, and the edge of the second portion 242 coinciding with the first portion 241 may be a circular arc, but the second portion 242 tends to be rectangular as a whole. The third portion 243 is substantially trapezoidal, the edge of the third portion 243 coinciding with the main body 21 may be a circular arc, and the edge of the third portion 243 coinciding with the first portion 241 may be a circular arc, but the overall trend of the third portion 243 is trapezoidal.

The areas of the first tab 22 and the second tab 23 may be substantially the same.

In one embodiment, the housing 10 is provided with a fill port and an explosion-proof valve, which may be located on the same side of the housing 10, while the post structure 40 and the fill port and the explosion-proof valve are located on opposite sides of the housing 10.

In one embodiment, as shown in fig. 1 to 3, the housing 10 includes: a first housing piece 11; and a second housing part 12, the second housing part 12 being connected to the first housing part 11 to seal the electric core 20.

The first housing part 11 is a cover plate, the second housing part 12 can be formed with a containing space, and the pole structure 40 is arranged on the first housing part 11, so that the connection between the pole structure 40 and the first housing part 11 is facilitated, and the assembly of a subsequent battery can be facilitated.

In some embodiments, the first and second housing pieces 11 and 12 may each form a receiving space.

The first shell member 11 comprises steel and the second shell member 12 comprises steel. Alternatively, the first case member 11 comprises aluminum and the second case member 12 comprises aluminum. The first shell piece 11 may comprise a composite metal material, for example, the first shell piece 11 may comprise a copper aluminum composite material, and the second shell piece 12 may comprise a composite metal material, for example, the second shell piece 12 may comprise a copper aluminum composite material.

The first and second case members 11, 12 may be welded, or the first and second case members 11, 12 may be riveted.

It is to be understood that the battery includes a cell and an electrolyte, and a minimum unit capable of performing an electrochemical reaction such as charge/discharge. The battery cell refers to a unit formed by winding or laminating a stacking portion, wherein the stacking portion comprises a first pole piece, a partition and a second pole piece. When the first pole piece is a positive pole piece, the second pole piece is a negative pole piece. And the polarities of the first pole piece and the second pole piece can be interchanged. The first pole piece and the second pole piece are coated with active materials.

In one embodiment, the battery may be a prismatic battery, that is, the battery may be a prismatic battery, which mainly refers to a straight line whose shape is a prism, but does not strictly limit whether each edge of the prism is strictly defined, and the corner between the edges is not necessarily a right angle, and may be an arc transition.

The battery can be the lamination formula battery, and it is convenient not only to organize, and can process and obtain the longer battery of length. Specifically, electric core is lamination formula electric core, and electric core has first pole piece that stacks up each other, with first pole piece opposite electric property's second pole piece and the diaphragm of setting between first pole piece and second pole piece to make many to pile up and form lamination formula electric core to first pole piece and second pole piece.

Or, the battery may be a winding battery, that is, a first pole piece, a second pole piece having an opposite electrical property to the first pole piece, and a diaphragm sheet disposed between the first pole piece and the second pole piece are wound to obtain a winding battery core.

In one embodiment, the battery may be a cylindrical battery. The battery may be a wound battery, that is, a first pole piece, a second pole piece opposite to the first pole piece in electrical property, and a diaphragm sheet disposed between the first pole piece and the second pole piece are wound to obtain a wound battery core.

An embodiment of the utility model also provides a group battery, including foretell battery.

The utility model discloses the group battery of an embodiment includes the battery, and the battery includes casing 10, electric core 20 and first adaptor 30, and electric core 20 and first adaptor 30 set up in casing 10, and first adaptor 30 is connected with the first utmost point ear 22 of electric core 20. The first connecting piece 30 is bent into a first connecting section 31 and a second connecting section 32, a first fold 33 is formed between the first connecting section 31 and the second connecting section 32, on the basis of facilitating connection of the first connecting section 31 and the first tab 22, the problem that the first connecting piece 30 is low in structural strength due to excessive bending of the first connecting piece 30 can be solved, too much height space occupied by the first connecting piece 30 can be avoided, orthographic projections of the first fold 33 and the first tab 22 on the plane where the end face of the main body 21 provided with the first tab 22 is located do not coincide with each other, a reliable contact area between the first connecting section 31 and the first tab 22 can be guaranteed, accordingly, the capability of the first connecting section 31 and the first tab 22 is guaranteed, and the safety overcurrent performance of the battery pack is improved.

In one embodiment, the battery pack is a battery module or a battery pack.

The battery module includes a plurality of batteries, and the battery can be square battery, and the battery module can also include end plate and curb plate, and end plate and curb plate are used for fixing a plurality of batteries. The battery can be a cylindrical battery, and the battery module can further comprise a bracket, and the battery can be fixed on the bracket.

The battery pack includes a plurality of batteries and a case for fixing the plurality of batteries.

It should be noted that the battery pack includes a plurality of batteries, and the plurality of batteries are disposed in the box body. Wherein, a plurality of batteries can form and install in the box behind the battery module. Or, a plurality of batteries can directly set up in the box, need not to carry out the group to a plurality of batteries promptly, utilizes the box to fix a plurality of batteries.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the disclosure is limited only by the appended claims.

Claims (12)

1. A battery, comprising:

a housing (10);

the battery cell (20), the battery cell (20) is arranged in the casing (10), and the battery cell (20) comprises a main body (21) and a first tab (22) extending from one side of the main body (21);

the first adapter (30) is arranged in the shell (10), the first adapter (30) is bent into a first connecting section (31) and a second connecting section (32), a first crease (33) is formed between the first connecting section (31) and the second connecting section (32), and the first connecting section (31) is connected with the first tab (22);

wherein the first crease (33) does not coincide with an orthographic projection of a plane on which an end face of the first tab (22) is located, the plane being oriented towards the main body (21) and provided with the first tab (22).

2. The battery according to claim 1, wherein a distance between an orthographic projection of the first fold (33) along the plane and an end of the first tab (22) proximate the first fold (33) is 0.5mm to 10mm.

3. The battery according to claim 1, characterized in that the second connection section (32) coincides with an orthographic projection of the first tab (22) onto a plane of an end face of the main body (21) on which the first tab (22) is provided.

4. The battery according to claim 1, wherein the first connection section (31) and the second connection section (32) are parallel.

5. The battery according to claim 1, wherein the ratio of the surface area of the side of the first connection section (31) facing the first tab (22) to the surface area of the side of the first tab (22) facing the first connection section (31) is not less than 0.8.

6. The battery according to claim 5, characterized in that the surface area of the second connection section (32) on the side facing away from the first connection section (31) is smaller than the surface area of the first connection section (31) on the side facing the first tab (22).

7. The battery according to any one of claims 1 to 6, characterized in that the battery further comprises a pole structure (40), the pole structure (40) being arranged on the housing (10), the second connection section (32) being electrically connected with the pole structure (40) or the housing (10).

8. The battery according to claim 7, wherein the electric core (20) further comprises a second tab (23), the first tab (22) and the second tab (23) extend from the same side of the main body (21), the battery further comprises a second adaptor (50), the second tab (23) is connected to the second adaptor (50), and the first adaptor (30) and the second adaptor (50) are arranged in an insulating manner;

wherein one of the second connection section (32) and the second adapter (50) is connected to the pole arrangement (40) and the other is connected to the housing (10).

9. The battery according to claim 8, wherein the second adaptor (50) is bent into a third connecting section (51) and a fourth connecting section (52), a second fold (53) is formed between the third connecting section (51) and the fourth connecting section (52), and the third connecting section (51) is connected with the second pole ear (23);

wherein the second fold (53) does not coincide with an orthographic projection of the second tab (23) onto a plane of the end face of the main body (21) on which the first tab (22) is provided.

10. The battery according to claim 9, wherein a separation region (24) is formed between the first tab (22) and the second tab (23), the separation region (24) comprising a first portion (241), a second portion (242), and a third portion (243), the first portion (241) connecting the second portion (242) and the third portion (243), the second portion (242) having an area smaller than the third portion (243), at least a portion of the first fold (33) and the second fold (53) being located directly above the third portion (243).

11. The battery of claim 10, wherein a centerline of the first portion (241) coincides with a centerline of the body (21), the first portion (241) is circular, the second portion (242) and the third portion (243) are located on opposite sides of the first portion (241), respectively, the second portion (242) is rectangular, and the third portion (243) is trapezoidal.

12. The battery according to any one of claims 1 to 6, wherein the battery is a cylindrical battery.

Images