CN219534801U - Battery and battery device - Google Patents

Abstract

The battery comprises a battery core and a shell, wherein the battery core is provided with a first tab and a second tab, and the polarities of the first tab and the second tab are different; the shell comprises a first conductive shell and a second conductive shell, the first conductive shell and the second conductive shell are connected to form a containing cavity, the battery cell is arranged in the containing cavity, the first conductive shell is connected with the first tab, the second conductive shell is connected with the second tab, and the first conductive shell and the second conductive shell are insulated; the first conductive shell comprises a first shell body and a first confluence flanging, the first confluence flanging is connected to the first shell body, the second conductive shell comprises a second shell body and a second confluence flanging, and the second confluence flanging is connected to the second shell body. The production efficiency of the battery device can be improved.

Description

Battery and battery device

Technical Field

The disclosure relates to the technical field of batteries, and in particular relates to a battery and a battery device.

Background

With the development and progress of technology, electric vehicles are increasingly used. Batteries are often provided in electric vehicles for powering the electric vehicle. In an electric vehicle, a plurality of batteries are often integrated with a battery pack mounted on a chassis or the like of the vehicle, and the plurality of batteries in the battery pack are often electrically connected through devices such as a bus bar, and the operation of connecting the plurality of batteries through the bus bar is complicated, resulting in low production efficiency.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

An object of the present disclosure is to provide a battery and a battery device, and further to at least improve the production efficiency of the battery device to a certain extent.

According to one aspect of the present disclosure, there is provided a battery including:

the battery cell is provided with a first tab and a second tab, and the polarities of the first tab and the second tab are different;

the shell comprises a first conductive shell and a second conductive shell, the first conductive shell and the second conductive shell are connected to form a containing cavity, the battery cell is arranged in the containing cavity, the first conductive shell is connected with the first tab, the second conductive shell is connected with the second tab, and the first conductive shell and the second conductive shell are insulated;

the first conductive shell comprises a first shell body and a first confluence flanging, the first confluence flanging is connected to the first shell body, the second conductive shell comprises a second shell body and a second confluence flanging, the second confluence flanging is connected to the second shell body, the first confluence flanging extends to the direction that the first shell body is far away from the second shell body, and the second confluence flanging extends to the direction that the second shell body is far away from the first shell body.

The battery that this disclosed embodiment provided, including casing and electric core, the casing includes the first conductive shell and the second conductive shell of mutual insulation, first conductive shell and second conductive shell are connected with the first utmost point ear and the second utmost point ear of electric core respectively for first conductive shell and second conductive shell form two electrodes of battery respectively, set up first conflux turn-ups on first conductive shell, set up the second and conflux turn-ups on the second conductive shell, when a plurality of batteries pile up, adjacent two batteries can be connected through first conflux turn-ups and second conflux turn-ups, the connection that leads to through the busbar connection a plurality of batteries is complicated has been avoided, the problem of production efficiency is low, and then battery device's production efficiency can be promoted.

According to another aspect of the present disclosure, there is provided a battery device including a plurality of the above-described batteries, the plurality of batteries being sequentially arranged;

the first bus flanging of the first battery is at least partially connected with the second bus flanging of the second battery, and the first battery and the second battery are two adjacent batteries in the plurality of batteries.

The battery device that this disclosed embodiment provided includes a plurality of sequential arrangement's battery, the casing includes the first conductive shell and the second conductive shell of mutual insulation in the battery, first conductive shell and second conductive shell are connected with the first utmost point ear and the second utmost point ear of electric core respectively for first conductive shell and second conductive shell form two electrodes of battery respectively, set up first conflux turn-ups on first conductive shell, set up the second and conflux turn-ups on the second conductive shell, when a plurality of batteries pile up, adjacent two batteries can be connected through first conflux turn-ups and second conflux turn-ups, the connection that leads to through a plurality of batteries of busbar connection is complicated has been avoided, the problem of production efficiency is low, and then battery device's production efficiency can be promoted.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic structural view of a first battery provided in an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a battery provided in an exemplary embodiment of the present disclosure;

FIG. 3 is an enlarged partial schematic view of a battery provided in an exemplary embodiment of the present disclosure;

fig. 4 is a schematic structural view of a second battery provided in an exemplary embodiment of the present disclosure;

fig. 5 is a schematic structural view of a third battery provided in an exemplary embodiment of the present disclosure;

fig. 6 is a schematic structural view of a first battery device provided in an exemplary embodiment of the present disclosure;

fig. 7 is a schematic structural view of a second battery device provided in an exemplary embodiment of the present disclosure;

fig. 8 is a schematic structural view of a third battery device according to an exemplary embodiment of the present disclosure.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying 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, 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 unless explicitly specified or limited otherwise; the term "plurality" refers to two or more than two; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the/the" object or "an" object are likewise intended to mean one of a possible plurality of such objects.

Unless specified or indicated otherwise, the terms "connected," "fixed," and the like are to be construed broadly and are, for example, capable of being fixedly connected, detachably connected, or integrally connected, electrically connected, or signally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the terms in the present disclosure may be understood by those skilled in the art according to the specific circumstances.

Further, in the description of the present disclosure, it should be understood that the terms "upper", "lower", "inner", "outer", and the like, as described in the example embodiments of the present disclosure, are described with the angles shown in the drawings, and should not be construed as limiting the example embodiments of the present disclosure. It will also be understood that in the context of an element or feature being connected to another element(s) "upper," "lower," or "inner," "outer," it can be directly connected to the other element(s) "upper," "lower," or "inner," "outer," or indirectly connected to the other element(s) "upper," "lower," or "inner," "outer" via intervening elements.

The exemplary embodiments of the present disclosure first provide a battery 100, as shown in fig. 1 and 2, the battery 100 including: the battery cell 10 is provided with a first tab and a second tab, and the polarities of the first tab and the second tab are different; the housing 20 includes a first conductive shell 21 and a second conductive shell 22, the first conductive shell 21 and the second conductive shell 22 are connected to form a receiving cavity, the battery cell 10 is disposed in the receiving cavity, the first conductive shell 21 is connected to the first tab, the second conductive shell 22 is connected to the second tab, and the first conductive shell 21 and the second conductive shell 22 are insulated.

Wherein the first conductive shell 21 includes a first shell body 211 and a first bus bar flange 212, the first bus bar flange 212 is connected to the first shell body 211, the second conductive shell 22 includes a second shell body 221 and a second bus bar flange 222, the second bus bar flange 222 is connected to the second shell body 221, and the first bus bar flange 212 extends toward the first shell body 211 away from the second shell body 221, and the second bus bar flange 222 extends toward the second shell body 221 away from the first shell body 211.

The battery 100 provided by the embodiment of the disclosure includes a housing 20 and a battery core 10, the housing 20 includes a first conductive shell 21 and a second conductive shell 22 which are insulated from each other, the first conductive shell 21 and the second conductive shell 22 are respectively connected with a first tab and a second tab of the battery core 10, so that the first conductive shell 21 and the second conductive shell 22 respectively form two electrodes of the battery, a first bus bar flanging 212 is arranged on the first conductive shell 21, a second bus bar flanging 222 is arranged on the second conductive shell 22, when a plurality of batteries are stacked, two adjacent batteries can be connected through the first bus bar flanging 212 and the second bus bar flanging 222, the problem that the connection of a plurality of batteries is complex and the production efficiency is low due to bus bar connection is avoided, and the production efficiency of the battery device can be improved.

Further, as shown in fig. 3, the battery 100 provided in the embodiment of the present disclosure may further include an insulating layer 30, and the insulating layer 30 is disposed between the first conductive case 21 and the second conductive case 22. By providing the insulating layer 30 between the first conductive shell 21 and the second conductive shell 22, insulation of the first conductive shell 21 and the second conductive shell 22 is achieved, and short-circuiting between the first conductive shell 21 and the second conductive shell 22 is avoided.

The following will describe each part of the battery provided in the embodiments of the present disclosure in detail:

the battery cell 10 is arranged in the accommodating cavity of the shell 20, the battery cell 10 comprises a battery cell main body and a tab, and the tab extends out from the battery cell main body; the number of the two lugs on the battery core main body is two, and the two lugs are a first lug (positive lug) and a second lug (negative lug) respectively. The first tab is connected to the first conductive shell 21, and the second tab is connected to the second conductive shell 22.

The first tab may be directly welded to the first conductive shell 21, or the first tab may be connected to the first conductive shell 21 through an adaptor, and the first tab and the first conductive shell 21 and 20 may be welded to the adaptor respectively. The second tab may be welded directly to the second conductive shell 22, or the second tab may be connected to the second conductive shell 22 via an adapter, and the second tab and the second conductive shell 22, 20 may be welded to the adapter, respectively.

It should be noted that, the battery core main body includes more than two pole pieces, the tab includes more than two single-piece tabs, single-piece tabs extend from the pole pieces corresponding to the single-piece tabs respectively, the width of the single-piece tabs is smaller than the width of the pole pieces, and a plurality of single-piece tabs are stacked to form the tab.

In one embodiment, the batteries are laminated batteries, so that the batteries are convenient to group and long in length can be obtained through machining. The battery cell 10 is a laminated battery cell, and the battery cell 10 is provided with a first pole piece, a second pole piece opposite to the first pole piece and a diaphragm sheet arranged between the first pole piece and the second pole piece, which are mutually laminated, so that a plurality of pairs of the first pole piece and the second pole piece are stacked to form a laminated battery cell.

Optionally, the battery cell may be a winding type battery cell, that is, the first pole piece, the second pole piece opposite to the first pole piece, and the diaphragm sheet disposed between the first pole piece and the second pole piece are wound to obtain the winding type battery cell.

The housing 20 includes a first conductive shell 21 and a second conductive shell 22, the first conductive shell 21 and the second conductive shell 22 are connected to form a receiving cavity, the battery cell 10 is disposed in the receiving cavity, the first conductive shell 21 is connected to the first tab, the second conductive shell 22 is connected to the second tab, and the first conductive shell 21 and the second conductive shell 22 are insulated.

The first conductive case 21 includes a first case main body 211 and a first bus bar flange 212, the first bus bar flange 212 is connected to the first case main body 211, the second conductive case 22 includes a second case main body 221 and a second bus bar flange 222, the second bus bar flange 222 is connected to the second case main body 221, the first bus bar flange 212 and the second bus bar flange 222 are located at the same side of the case 20, and the first bus bar flange 212 extends in a direction in which the first case main body 211 is far away from the second case main body 221, and the second bus bar flange 222 extends in a direction in which the second case main body 221 is far away from the first case main body 211.

In a possible embodiment of the present disclosure, the first conductive case 21 is provided with a receiving recess, and the second case body 221 is of a flat plate structure. The accommodating recess on the first conductive shell 21 body 20 forms an accommodating cavity, and the battery cell 10 is arranged in the accommodating recess.

On this basis, the first case main body 211 may include a first panel 2111 and a first frame 2112, the first frame 2112 being connected to the first panel 2111, and the first frame 2112 surrounding the first panel 2111, the first frame 2112 enclosing a receiving recess. For example, the first case main body 211 may be formed by punching, or the first panel 2111 and the first frame 2112 may be connected by welding or the like.

The first bus bar flange 212 is disposed at an end of the first frame 2112 away from the first panel 2111, and the first bus bar flange 212 may be formed by a sheet metal flange process. The first bus bar flange 212 may include a first connection section 2121 and a first bus bar section 2122, the first connection section 2121 and the first frame 2112 are vertically disposed, and the first connection section 2121 and the first frame 2112 are connected. The first bus bar 2122 is connected to an end of the first connecting section 2121 remote from the first frame 2112, and the first bus bar 2122 and the first frame 2112 are disposed in parallel.

The first bus bar 2122 may be in contact with the first frame 2112 or have a predetermined interval between the first bus bar 2122 and the first frame 2112. When there is a space between the first bus bar 2122 and the first frame 2112, an insulating filling layer may be provided between the first bus bar 2122 and the first frame 2112, and electrical connection between the first bus bar 2122 and the first frame 2112 and the opposite face of the first bus bar 2122 and the first frame 2112 is avoided by the insulating filling layer, so that the first bus bar 2122 is electrically connected only through the first connection section 2121 and the first case main body 211.

The second case body 221 is a flat plate structure, and the second bus bar 222 may include a second connection section 2221 and a second bus bar 2222, the second connection section 2221 respectively second case body 221 and the second bus bar 2222. The second connection section 2221 is coplanar with the housing body, i.e., the second connection section 2221 may be considered an outward extension of the second housing body 221. The second bus bar section 2222 and the second connection section 2221 are vertically arranged.

The insulating layer 30 is connected to a surface of the second conductive shell 22 facing the accommodating recess to insulate the first conductive shell 21 from the second conductive shell 22. For example, the insulating layer 30 may be provided on a side of the second case body 221 facing the first conductive case 21 and a side of the second connection section 2221 facing the first conductive case 21.

In another possible embodiment of the present disclosure, a first sub-accommodating cavity is disposed on the first conductive shell 21, a second sub-accommodating cavity is disposed on the second conductive shell 22, and the first sub-accommodating cavity and the second sub-accommodating cavity form an accommodating cavity together, and the battery cell 10 is disposed in the accommodating cavity. That is, the cell 10 is partially located in the first sub-accommodating cavity and partially located in the second sub-accommodating cavity.

On this basis, the first case main body 211 may include a first panel 2111 and a first frame 2112, the first frame 2112 being connected to the first panel 2111, and the first frame 2112 surrounding the first panel 2111, the first frame 2112 enclosing a receiving recess. For example, the first case main body 211 may be formed by punching, or the first panel 2111 and the first frame 2112 may be connected by welding or the like.

The first bus bar flange 212 is disposed at an end of the first frame 2112 away from the first panel 2111, and the first bus bar flange 212 may be formed by a sheet metal flange process. The first bus bar flange 212 may include a first connection section 2121 and a first bus bar section 2122, the first connection section 2121 and the first frame 2112 are vertically disposed, and the first connection section 2121 and the first frame 2112 are connected. The first bus bar 2122 is connected to an end of the first connecting section 2121 remote from the first frame 2112, and the first bus bar 2122 and the first frame 2112 are disposed in parallel.

The first bus bar 2122 may be in contact with the first frame 2112 or have a predetermined interval between the first bus bar 2122 and the first frame 2112. When there is a space between the first bus bar 2122 and the first frame 2112, an insulating filling layer may be provided between the first bus bar 2122 and the first frame 2112, and electrical connection between the first bus bar 2122 and the first frame 2112 and the opposite face of the first bus bar 2122 and the first frame 2112 is avoided by the insulating filling layer, so that the first bus bar 2122 is electrically connected only through the first connection section 2121 and the first case main body 211.

The second case body 221 may include a second panel 2211 and a second frame 2212, the second frame 2212 is connected to the second panel 2211, and the second frame 2212 surrounds the second panel 2211, and the second frame 2212 encloses a receiving recess. For example, the second case body 221 may be formed by punching, or the second panel 2211 and the second frame 2212 may be connected by welding or the like. Or the second housing body 221 may be a flat plate structure, and the second panel 2211 and the second frame 2212 may be different regions on the second housing body. For example, the second bezel 2212 surrounds the second panel 2211.

The second bus bar flange 222 is disposed at one end of the second frame 2212 away from the second panel 2211, and the second bus bar flange 222 may be formed by a sheet metal flange process. The second bus bar 222 may include a second connection section 2221 and a second bus bar 2222, where the second connection section 2221 and the second frame 2212 are vertically disposed, and the second connection section 2221 and the second frame 2212 are connected. The second bus section 2222 is connected to an end of the second connecting section 2221 away from the second frame 2212, where the second bus section 2222 and the second frame 2212 are disposed in parallel.

The second bus bar 2222 may be in contact with the second frame 2212, or a predetermined interval may be provided between the second bus bar 2222 and the second frame 2212. When there is a space between the second bus bar 2222 and the second frame 2212, an insulating filling layer may be disposed between the second bus bar 2222 and the second frame 2212, and electrical connection between the opposite surfaces of the second bus bar 2222 and the second frame 2212 is avoided by the insulating filling layer, so that the second bus bar 2222 is electrically connected only through the second connection section 2221 and the second case main body 221.

On the basis of this, the insulating layer 30 may be provided on the surface of the first conductive shell 21 or the insulating layer 30 may be provided on the surface of the second conductive shell 22. And the insulating layer 30 covers at least the first connection section 2121 or the second connection section 2221 to insulate the first conductive shell 21 and the second conductive shell 22.

In the embodiment of the present disclosure, the first connection section 2121 of the first conductive shell 21 and the second connection section 2221 of the second conductive shell 22 may correspond, and the first conductive shell 21 and the second conductive shell 22 may be connected through the first connection section 2121 and the second connection section 2221. The first conductive shell 21 and the second conductive shell 22 may be connected by glue, bolting, riveting, or the like.

When the battery is in a rectangular or approximately rectangular structure, the housing 20 includes two opposite end surfaces and a plurality of side surfaces located between the two end surfaces, the area of the end surfaces is larger than that of the side surfaces, and the first and second bus bar flanges 212 and 222 are provided on the side surfaces.

In one possible embodiment, as shown in fig. 4 and 5, the first and second bus cuffs 212, 222 are disposed on any of a plurality of sides. For example, the first and second bus bar flanges 212 and 222 may be provided on the upper side or the lower side of the housing 20, etc.

Optionally, the plurality of sides of the housing 20 includes a first side and a second side, the first side having a length greater than a length of the second side, and the first and second converging flanges 212 and 222 are disposed on the first side. That is, the first converging flange 212 and the second converging flange 222 are disposed on the long side of the battery, so that the lengths of the first converging flange 212 and the second converging flange 222 are longer, and the overcurrent capacity of the converging flanges is improved.

In another possible embodiment, the first and second bus-flanges 212, 222 encircle the housing 20. That is, the first converging flanges 212 and the second converging flanges 222 are respectively disposed on the plurality of sides, and the first converging flanges 212 on the plurality of sides are sequentially connected end to end, and the second converging flanges 222 on the plurality of sides are sequentially connected end to end.

The width of the converging flange is greater than or equal to the thickness of the housing 20, the width of the converging flange is the distance from one end of the first converging flange 212 away from the second converging flange 222 to one end of the second converging flange 222 away from the first converging flange 212, and the thickness of the housing 20 is the distance from one surface of the first housing main body 211 away from the second housing main body 221 to one surface of the second housing main body 221 away from the first housing main body 211. The width of the bus bar flange is equal to or greater than the thickness of the case 20 so that the bus bar flanges on adjacent cells are in contact or have an overlap portion when a plurality of cells are stacked, to achieve electrical connection of the adjacent cells.

In the disclosed embodiment, the first and second bus-flanges 212, 222 may be flush, i.e., the first and second bus-sections 2122, 2222 are coplanar. Or the first and second bus cuffs 212 and 222 have a height difference. The embodiments of the present disclosure are not particularly limited thereto.

The battery provided by the embodiment of the disclosure comprises a housing 20 and a battery cell 10, wherein the housing 20 comprises a first conductive shell 21 and a second conductive shell 22 which are insulated from each other, the first conductive shell 21 and the second conductive shell 22 are respectively connected with a first tab and a second tab of the battery cell 10, the first conductive shell 21 and the second conductive shell 22 respectively form two electrodes of the battery, a first bus flanging 212 is arranged on the first conductive shell 21, a second bus flanging 222 is arranged on the second conductive shell 22, when a plurality of batteries are stacked, two adjacent batteries can be connected through the first bus flanging 212 and the second bus flanging 222, the problem that the connection of a plurality of batteries is complex and the production efficiency is low due to bus connection is avoided, and the production efficiency of a battery device can be improved.

The exemplary embodiments of the present disclosure also provide a battery device, as shown in fig. 6, 7, 8, including a plurality of the above-described batteries 100, the plurality of batteries 100 being sequentially arranged; the battery comprises a battery cell 10 and a shell 20, wherein the battery cell 10 is provided with a first tab and a second tab, and the polarities of the first tab and the second tab are different; the housing 20 includes a first conductive shell 21 and a second conductive shell 22, the first conductive shell 21 and the second conductive shell 22 are connected to form a receiving cavity, the battery cell 10 is disposed in the receiving cavity, the first conductive shell 21 is connected to the first tab, the second conductive shell 22 is connected to the second tab, and the first conductive shell 21 and the second conductive shell 22 are insulated. The first conductive case 21 includes a first case main body 211 and a first bus bar flange 212, the first bus bar flange 212 is connected to the first case main body 211, the second conductive case 22 includes a second case main body 221 and a second bus bar flange 222, the second bus bar flange 222 is connected to the second case main body 221, the first bus bar flange 212 and the second bus bar flange 222 are located at the same side of the case 20, and the first bus bar flange 212 extends in a direction in which the first case main body 211 is far away from the second case main body 221, and the second bus bar flange 222 extends in a direction in which the second case main body 221 is far away from the first case main body 211.

The first bus bar flange 212 of the first battery is at least partially connected to the second bus bar flange 222 of the second battery, and the first battery and the second battery are two adjacent batteries in the plurality of batteries.

The battery device provided by the embodiment of the disclosure includes a plurality of sequentially arranged batteries 100, in which the housing 20 includes a first conductive shell 21 and a second conductive shell 22 that are insulated from each other, the first conductive shell 21 and the second conductive shell 22 are respectively connected with a first tab and a second tab of the battery core 10, so that the first conductive shell 21 and the second conductive shell 22 respectively form two electrodes of the battery, a first bus bar flanging 212 is disposed on the first conductive shell 21, and a second bus bar flanging 222 is disposed on the second conductive shell 22, when a plurality of batteries 100 are stacked, two adjacent batteries can be connected through the first bus bar flanging 212 and the second bus bar flanging 222, so that the problems of complex connection and low production efficiency caused by connecting a plurality of batteries through a bus bar are avoided, and the production efficiency of the battery device can be improved.

Further, the battery device provided by the embodiment of the disclosure may further include a case, and a battery compartment is provided in the case, and a plurality of batteries may be placed in the battery compartment. The case has a bottom plate, the battery is disposed on the bottom plate, and the first and second converging flanges 212 and 222 are disposed on a side of the housing 20 away from the bottom plate.

In a possible embodiment of the present disclosure, the first bus bar flange 212 of the first battery and the second bus bar flange 222 of the second battery are welded. For example, the first bus bar flange 212 of the first battery and the second bus bar flange 222 of the second battery are in contact, and the first bus bar flange 212 and the second bus bar flange 222 are welded at the contact of the first bus bar flange 212 of the first battery and the second bus bar flange 222 of the second battery. Or the first bus-bar flange 212 of the first battery and the second bus-bar flange 222 of the second battery are in contact with each other with an overlapping portion, and the first bus-bar flange 212 and the second bus-bar flange 222 are welded at the overlapping portion.

In another possible embodiment of the present disclosure, the first bus bar flange 212 of the first battery and the second bus bar flange 222 of the second battery are snapped together. The first bus bar flange 212 is provided with a first engagement portion, and the second bus bar portion is provided with a second engagement portion. The first clamping portion of the first bus bar flange 212 of the first battery is clamped with the second clamping portion of the second bus bar flange 222 of the second battery. For example, the first clamping portion may be a clamping groove, and the second clamping portion may be a clamping protrusion.

The battery device may be a battery module or a battery pack. When the battery device is a battery module, the battery module can comprise a plurality of batteries, end plates and side plates, the batteries are sequentially stacked to form a battery pack, the end plates are respectively arranged at two ends of the battery pack along the stacking direction, and the side plates are respectively arranged at two sides of the battery pack along the stacking direction.

When the battery device is a battery pack, the battery pack may include a plurality of batteries and a case, and the plurality of batteries are disposed in the case. The batteries can be integrated into at least one battery module, and then the battery module is installed in the box body. Or a plurality of batteries may be directly put into the battery case to form a battery pack, which is not particularly limited in the embodiments of the present disclosure.

The battery device provided by the embodiment of the disclosure includes a plurality of sequentially arranged batteries, in which the housing 20 includes a first conductive shell 21 and a second conductive shell 22 that are insulated from each other, the first conductive shell 21 and the second conductive shell 22 are respectively connected with a first tab and a second tab of the battery core 10, so that the first conductive shell 21 and the second conductive shell 22 respectively form two electrodes of the battery, a first bus bar flanging 212 is disposed on the first conductive shell 21, a second bus bar flanging 222 is disposed on the second conductive shell 22, when a plurality of batteries are stacked, two adjacent batteries can be connected through the first bus bar flanging 212 and the second bus bar flanging 222, the problem of complex connection and low production efficiency caused by connecting a plurality of batteries through a bus bar is avoided, and the production efficiency of the battery device can be improved.

The device provided by the embodiment of the disclosure can be applied to an electric vehicle, and when the battery is used for the electric vehicle, the battery device can be a battery pack, and the battery pack is installed on the electric vehicle and provides energy for the electric vehicle.

In practice, the battery pack may be mounted to the frame of an electric vehicle. The battery pack can be fixedly connected with the frame. Or the battery pack can be a modularized battery pack which can be detachably connected to the vehicle body, so that the battery pack is convenient to replace.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure 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 examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (11)

1. A battery, the battery comprising:

the battery cell is provided with a first tab and a second tab, and the polarities of the first tab and the second tab are different;

the shell comprises a first conductive shell and a second conductive shell, the first conductive shell and the second conductive shell are connected to form a containing cavity, the battery cell is arranged in the containing cavity, the first conductive shell is connected with the first tab, the second conductive shell is connected with the second tab, and the first conductive shell and the second conductive shell are insulated;

the first conductive shell comprises a first shell body and a first confluence flanging, the first confluence flanging is connected to the first shell body, the second conductive shell comprises a second shell body and a second confluence flanging, the second confluence flanging is connected to the second shell body, the first confluence flanging extends to the direction that the first shell body is far away from the second shell body, and the second confluence flanging extends to the direction that the second shell body is far away from the first shell body.

2. The battery of claim 1, wherein the battery further comprises:

and the insulating layer is arranged between the first conductive shell and the second conductive shell.

3. The battery of claim 2, wherein the first conductive case is provided with a receiving recess, and the insulating layer is connected to a side of the second conductive case facing the receiving recess.

4. The battery of claim 1, wherein the housing includes two oppositely disposed end faces and a plurality of side faces between the two end faces, the end faces having an area greater than an area of the side faces, the first and second bus beads being provided on the side faces.

5. The battery of claim 4, wherein the first and second bus-flanges are provided on any one of a plurality of the sides.

6. The battery of claim 4, wherein the plurality of sides of the housing includes a first side and a second side, the first side having a length greater than a length of the second side, the first and second converging flanges being disposed on the first side.

7. The battery of claim 4, wherein the first and second bus flanges encircle the housing.

8. The battery of any one of claims 1-7, wherein a width of the converging flange is greater than or equal to a thickness of the housing, the width of the converging flange being a distance from an end of the first converging flange remote from the second converging flange to an end of the second converging flange remote from the first converging flange, the thickness of the housing being a distance from a face of the first housing body remote from the second housing body to a face of the second housing body remote from the first housing body.

9. The battery of any one of claims 1-7, wherein the first and second bus-flanges are provided on the same side of the housing.

10. A battery device, characterized in that it comprises a plurality of batteries according to any one of claims 1-9, a plurality of said batteries being arranged in a stack;

the first bus flanging of the first battery is at least partially connected with the second bus flanging of the second battery, and the first battery and the second battery are two adjacent batteries in the plurality of batteries.

11. The battery device of claim 10, wherein the battery device further comprises:

the box, the box has the bottom plate, the battery is located the bottom plate, and first conflux turn-ups with the second conflux turn-ups are located the casing is kept away from one side of bottom plate.