CN220420715U - Battery shell, battery and electronic equipment - Google Patents

Abstract

The application discloses a battery case, a battery and electronic equipment. The battery shell comprises a shell body, a supporting piece and a first cover body, wherein the shell body is provided with a first opening part; the support piece is connected to the inner side of the shell body and is arranged close to the shell body; the support piece is provided with a first avoiding part for avoiding the electrode assembly of the battery; the first cover body covers the first opening part, and the support piece faces the first side end face of the first opening part and is in butt joint with the first cover body. In the battery case that this application embodiment provided, support piece can play the effect of supporting the location to first lid to the positioning accuracy of first lid is higher, this battery case's sealing performance is better.

Description

Battery shell, battery and electronic equipment

Technical Field

The application relates to the technical field of energy storage equipment, and more particularly relates to a battery shell, a battery and electronic equipment.

Background

In recent years, along with the development of technology, various electronic products gradually enter into thousands of households to become living necessities of people. The electronic products are often provided with batteries, and as the fields of coverage of the electronic products in daily life are wider and wider, the batteries are also widely applied.

In order to ensure the normal use of the battery, the battery case needs to have a well-stabilized structure. The battery case generally includes a case and a cover body connected to each other; in the prior art, when the shell and the cover body are connected, only the periphery of the cover body is welded with the shell; the battery case thus manufactured has poor supporting effects of the case and the cover, thereby resulting in poor structural stability of the battery case.

Disclosure of Invention

It is an object of the present application to provide a new solution for a battery housing, a battery and an electronic device.

According to a first aspect of the present application, there is provided a battery case comprising:

a case body having a first opening portion;

the support piece is connected to the inner side of the shell body and is arranged close to the shell body; the support piece is provided with a first avoiding part for avoiding an electrode assembly of the battery;

the first cover body is covered on the first opening part, and the support piece faces to the first side end face of the first opening part and is abutted to the first cover body.

Optionally, the first cover body is in sealing connection with the shell body.

Optionally, the first side end surface of the shell body facing the first opening part protrudes from the first side end surface of the support part facing the first opening part.

Optionally, the case body has a second opening portion disposed opposite to the first opening portion in a first direction;

the battery shell further comprises a second cover body, the second cover body is covered on the second opening part, the second cover body is abutted with the supporting piece towards the second side end face of the second opening part, and the second cover body is in sealing connection with the shell body.

Optionally, a second side end surface of the case body facing the second opening portion protrudes from a second side end surface of the support member facing the second opening portion.

Optionally, the first cover and the second cover are both abutted against the inner side of the shell body.

Optionally, along the circumferential direction of the first cover, the first cover continuously abuts against the inner side of the case body;

along the circumferential direction of the second cover body, the second cover body continuously abuts against the inner side of the shell body.

Optionally, the support member is a support member made of an insulating material.

Optionally, the shell body has a first side wall, a second side wall, a top wall, and a bottom wall; wherein the first side wall is arranged opposite to the second side wall, and the top wall is arranged opposite to the bottom wall; the top wall and the bottom wall are both connected with the first side wall, and the top wall and the bottom wall are both connected with the second side wall;

the support piece is in fit connection with the first side wall, the second side wall, the top wall and the bottom wall.

Optionally, the supporting member is provided with the first avoiding portion corresponding to the top wall, and the first avoiding portion is disposed through the supporting member in the thickness direction.

Optionally, the first avoiding portion is a through hole structure penetrating through the thickness direction of the supporting member; or,

the first relief extends through the support in a thickness direction and at least one side of the support in a first direction.

Optionally, the top wall includes a first connecting plate and a second connecting plate, at least part of the first connecting plate and at least part of the second connecting plate are connected in a stacked manner to form a connecting part;

the support member is provided with a second escape portion for escaping the connection portion.

Optionally, the first cover body includes a first connection portion and a first protruding portion, the first connection portion is disposed around the first protruding portion, the first connection portion abuts against the first side end surface of the support member and is in sealing connection with the shell body, and the first protruding portion protrudes in a direction away from the second opening portion along a first direction;

the second cover body comprises a second connecting part and a second protruding part, the second connecting part surrounds the second protruding part, the second connecting part is abutted with the second side end face of the supporting piece and is in sealing connection with the shell body, and the second protruding part protrudes along the first direction towards the direction away from the first opening part.

According to a second aspect of the present application there is provided a battery comprising a battery housing as described in the first aspect.

Optionally, the battery further comprises a pole core and a conductive component, wherein the pole core is led out of a first pole lug and a second pole lug; the shell body, the first cover body and the second cover body are enclosed to form an accommodating space, and the pole core, the first pole lug and the second pole lug are arranged in the accommodating space;

the conductive component is connected with the shell body, and the conductive component is arranged in an insulating way with the shell body; the first tab is connected with the conductive component, and the second tab is connected with the shell body.

Optionally, the shell body is provided with a first perforation, and the support piece is provided with a second perforation; the first perforation and the second perforation are communicated with each other;

the conductive assembly comprises a pole, a conductive sheet and an insulating pad, a part of the pole penetrates through the first through hole and the second through hole, and the insulating pad is arranged between the pole and the shell body;

the conductive sheet is connected with the pole, and the supporting piece is positioned between the shell body and the conductive sheet; the first tab is connected with the conductive sheet.

Optionally, the second tab is connected to the housing body at the location of the first relief.

According to a third aspect of the present application, there is provided an electronic device comprising a battery as described in the second aspect.

The technical scheme that this application adopted can reach following beneficial effect:

in the battery case provided by the embodiment of the application, since the support member is connected to the inner side of the case body, the first cover body covering the first opening part is abutted against the first side end face of the support member facing the first opening part; therefore when carrying out sealing connection with first lid and shell body, support piece can play the effect of supporting the location to the location precision of first lid is higher, this battery case's structural stability is better, and battery case's sealing performance is better.

Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the present application, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic structural view of a battery case according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a second configuration of a battery housing according to one embodiment of the present application;

fig. 3 is a schematic structural view of a battery case according to an embodiment of the present application;

fig. 4 is a schematic structural view of a support in a battery case according to an embodiment of the present application;

FIG. 5 is a schematic diagram II of the structure of a support in a battery housing according to one embodiment of the present application;

FIG. 6 is a schematic structural view of one implementation of a housing body in a battery housing according to one embodiment of the present application;

fig. 7 is a schematic view of a third configuration of a support in a battery housing according to one embodiment of the present application;

fig. 8 is a schematic structural view of a support in a battery case according to one embodiment of the present application;

fig. 9 is a schematic view of the overall structure of a battery according to an embodiment of the present application;

fig. 10 is an exploded structural view of a battery according to an embodiment of the present application;

fig. 11 is a partially cut-away schematic structural view of a battery according to one embodiment of the present application.

Reference numerals illustrate:

1. a battery case; 11. a housing body; 111. a first sidewall; 112. a second sidewall; 113. a top wall; 1130. a connection part; 1131. a first connection plate; 1132. a second connecting plate; 114. a bottom wall; 12. a support; 121. a first avoidance unit; 122. a second avoidance unit; 13. a first cover; 131. a first connection portion; 132. a first boss; 14. a second cover; 141. a second connecting portion; 142. a second protruding portion; 101. a first perforation; 102. a second perforation; 103. a first liquid injection hole; 104. a second liquid injection hole; 2. a pole core; 21. a first tab; 22. a second lug; 23. a first adapter; 24. a second adapter; 3. a conductive assembly; 31. a pole; 32. a conductive sheet; 33. an insulating pad; 4. a sealing plug; 5. sealing cover.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1-8, a battery enclosure is provided according to one embodiment of the present application. The battery case includes a case body 11, a support 12, and a first cover 13, the case body 11 having a first opening; the supporting piece 12 is connected to the inner side of the shell body 11 and is arranged close to the shell body 11; the supporting member 12 is arranged close to the case body 11, including the case where the supporting member 12 is attached to the case body 11 and the case where the supporting member 12 is close to the case body 11; the supporting member 12 is provided with a first avoidance portion 121 for avoiding the electrode assembly of the battery; the first cover 13 is covered on the first opening, the first side end surface of the support 12 facing the first opening is abutted to the first cover 13, and the first cover 13 is in sealing connection with the housing body 11.

In the battery case provided in the embodiment of the present application, the case body 11 has a first opening portion, and the first cover 13 is covered on the first opening portion to block the first opening portion. Since the supporting piece 12 is connected to the inner side of the shell body 11, the first cover 13 covering the first opening is abutted against the first side end surface of the supporting piece 12 facing the first opening; therefore, when the first cover 13 is in sealing connection with the shell body 11, the supporting piece 12 can play a role in supporting and positioning the first cover 13, so that the positioning accuracy of the first cover 13 is higher, the structural stability of the battery shell is better, and the sealing performance of the battery shell is better. The first cover 13 is in contact with the case body 11, and further ensures the sealing performance of the battery case.

In addition, when the first cover 13 is welded with the case body 11, the supporting member 12 can prevent the battery core from being damaged due to light leakage during the welding process. In addition, the support member 12 is provided with the first avoiding portion 121, so that when the battery applied to the battery case is assembled, the first avoiding portion 121 can avoid an electrode assembly of the battery, and the electrode assembly is connected with the case body 11 at a position where the first avoiding portion 121 is located to realize electrical conduction.

Referring to fig. 1 and 2, in one embodiment, a first side end surface of the case body 11 facing the first opening portion protrudes from a first side end surface of the support 12 facing the first opening portion.

In this specific example, the first side end surface of the case body 11 facing the first opening portion protrudes from the first side end surface of the support 12 facing the first opening portion, so that a first step is formed between the first side end surface of the case body 11 and the first side end surface of the support 12; when the first cover 13 is covered, the first cover 13 is arranged at the first step and is abutted against the first side end surface of the support 12, so that a good positioning and supporting effect is formed on the first cover 13.

Referring to fig. 1 and 2, in one embodiment, the case body 11 has a second opening portion provided opposite to the first opening portion in a first direction;

the battery case further includes a second cover 14, the second cover 14 is covered on the second opening, the second cover 14 abuts against a second side end surface of the support 12 facing the second opening, and the second cover 14 is in sealing connection with the case body 11.

In this specific example, the case body 11 has a ring shape with both ends open, that is, the case body 11 has a frame structure with two openings. The case body 11 has a first opening portion and a second opening portion that are disposed opposite to each other in a first direction, which corresponds to a thickness direction of the battery, i.e., a direction a in fig. 1.

The second cover 14 is covered on the second opening to block the second opening; since the support 12 is connected to the inner side of the case body 11, the second cover 14 covering the second opening is abutted against the second side end surface of the support 12 facing the second opening; therefore, when the second cover 14 is in sealing connection with the case body 11, the supporting member 12 can play a role in supporting and positioning the second cover 14, so that the positioning accuracy of the second cover 14 is higher, and the sealing performance of the battery case is better. The second cover 14 is in contact with the case body 11, and further ensures the sealing performance of the battery case.

In addition, when the second cover 14 is welded with the case body 11, the supporting member 12 can prevent the battery core from being damaged due to light leakage during the welding process.

Referring to fig. 1 and 2, in one embodiment, a second side end surface of the case body 11 facing the second opening portion protrudes from a second side end surface of the support 12 facing the second opening portion.

In this specific example, the second side end surface of the case body 11 facing the second opening portion protrudes from the second side end surface of the support 12 facing the second opening portion, so that a second step is formed between the second side end surface of the case body 11 and the second side end surface of the support 12; when the second cover 14 is covered, the second cover 14 is disposed at the second step and abuts against the second side end surface of the supporting member 12, so that a good positioning and supporting effect is formed on the second cover 14. In one embodiment, the first cover 13 continuously abuts against the inner side of the case body 11 along the circumferential direction of the first cover 13; along the circumferential direction of the second cover 14, the second cover 14 continuously abuts against the inner side of the case body 11.

That is, all of the first cover 13 circumferentially abuts the inside of the case body 11, and all of the second cover 14 circumferentially abuts the inside of the case body 11; thereby ensuring that the battery case has high sealing performance.

In one embodiment, the support 12 is an insulating support.

In this particular example, the support 12 is made of an insulating material, for example, a rubber material for the support 12; in this way, the support 12 can act as an insulator when the battery is assembled, so that no additional insulator is required at the location of the support 12.

Moreover, since the supporting member 12 is provided inside the case body 11, the thickness of the case body 11 is thinned without changing the total thickness; the shell body 11 is made of metal materials such as stainless steel, nickel alloy, chromium alloy or aluminum alloy, and the supporting piece 12 is made of insulating materials such as rubber, so that the total weight of the battery shell is reduced, and the lightweight design requirement of the battery is met.

If the supporting member 12 is not provided, in order to ensure the sealing performance of the battery case, the first cover 13 and the second cover 14 need to have a sufficiently large contact area with the case body 11 to ensure the welding yield, so that the thickness of the case body 11 needs to be increased, thereby resulting in an increase in the weight of the battery case, and being difficult to satisfy the current light-weight requirement of the battery.

Referring to fig. 3, in one embodiment, the housing body 11 has a first side wall 111, a second side wall 112, a top wall 113, and a bottom wall 114; wherein the first side wall 111 is disposed opposite to the second side wall 112, and the top wall 113 is disposed opposite to the bottom wall 114; the top wall 113 and the bottom wall 114 are connected to the first side wall 111, and the top wall 113 and the bottom wall 114 are connected to the second side wall 112; the supporting member 12 is attached to the first side wall 111, the second side wall 112, the top wall 113, and the bottom wall 114.

In this specific example, the case body 11 has a frame-like structure with a rectangular cross section; having a first side wall 111, a second side wall 112, a top wall 113 and a bottom wall 114; the support 12 is also a frame-like structure having a rectangular cross section. Therefore, the supporting member 12 can play a role in positioning and supporting the first cover 13 and the second cover 14 at the first side wall 111, the second side wall 112, the top wall 113 and the bottom wall 114 of the case body 11, thereby further improving the assembly stability of the battery case.

Referring to fig. 4 and 5, in one embodiment, the support member 12 is provided with the first relief portion 121 corresponding to the top wall 113, and the first relief portion 121 is disposed through the thickness direction of the support member 12.

In this specific example, the first avoidance portion 121 is disposed corresponding to the top wall 113 of the case 11, and the first avoidance portion 121 may avoid the electrode assembly of the battery, so that the electrode assembly is connected to the case body 11 at the position where the first avoidance portion 121 is located to achieve electrical conduction.

Referring to fig. 4, in one embodiment, the first relief portion 121 is a through hole structure penetrating only the thickness direction of the support member 12; alternatively, referring to fig. 5, the first relief portion 121 may be a notch structure penetrating through the support 12 in the thickness direction of the support 12 and penetrating through the support 12 in the first direction.

In this specific example, the first relief portion 121 may extend only through the thickness direction of the support member 12, so that the support member 12 may still function as a positioning support for the first cover 13 and the second cover 14 at the position where the first relief portion 121 is located to improve the stability of assembly.

Alternatively, the first avoiding portion 121 may extend through the supporting member 12 in the thickness direction of the supporting member 12 and extend through the supporting member 12 in the first direction to form a notch structure, so that the first avoiding portion 121 is easier to open and is more beneficial to assembly between the electrode assembly and the case body 11.

Alternatively, the first relief 121 extends through the thickness of the support member 12 and extends in a first direction at least through one side of the support member 12.

Referring to fig. 6-8, in one embodiment, the top wall 113 includes a first connection plate 1131 and a second connection plate 1132, at least a portion of the first connection plate 1131 and at least a portion of the second connection plate 1132 are stacked and connected to form a connection 1130; the support 12 is provided with a second avoidance portion 122 for avoiding the connection portion 1130, and the second avoidance portion 122 is provided through the support 12 in the first direction.

In the process of manufacturing the case body 11, the case body 11 may be integrally formed or may be welded. Specifically, the manner in which the case body 11 is welded and molded may be: after the metal material forming the shell body 11 is bent, the first connection plate 1131 and the second connection plate 1132 of the metal material can be butted and then welded at the top wall 113; the first and second connection plates 1131 and 1132 may also be overlapped and then welded.

When the first connection plate 1131 and the second connection plate 1132 overlap, a portion of the first connection plate 1131 overlaps a portion of the second connection plate 1132 to form the connection portion 1130. Thus, a second relief portion 122 for relieving the attachment portion 1130 needs to be provided on the support 12.

Referring to fig. 7, the second relief 122 may be a groove-type structure penetrating the support 12 only in the first direction; referring to fig. 8, the second relief portion 122 may also be a slit structure that extends through the thickness of the support 12 and extends through the support 12 in the first direction.

Referring to fig. 2, in one embodiment, the first cover 13 includes a first connection portion 131 and a first protruding portion 132, the first connection portion 131 is disposed around the first protruding portion 132, the first connection portion 131 abuts against a first side end surface of the support 12 and is in sealing connection with the housing body 11, and the first protruding portion 132 is disposed protruding in a direction away from the second opening portion along a first direction;

the second cover 14 includes a second connection portion 141 and a second protruding portion 142, where the second connection portion 141 surrounds the second protruding portion 142, the second connection portion 141 abuts against a second side end surface of the support 12 and is in sealing connection with the shell body 11, and the second protruding portion 142 protrudes in a direction away from the first opening along a first direction.

In this specific example, the first protrusion 132 formed on the first cover 13 and the second protrusion 142 formed on the second cover 14 may be used for clamping and abutting by a clamping plate of a formation clamp during the press formation of the battery; that is, the clamping plates may abut at the first and second protrusions 132 and 142, thereby avoiding contact with the welding region between the cover (the first and second covers 13 and 14) and the case body 11, and making it possible to closely contact between the electrode sheets inside the battery and the separator. In addition, when the battery is changed, an additional clamp is not required to be replaced, so that the production cost is reduced.

Referring to fig. 9-11, according to another embodiment of the present application, there is provided a battery including the battery case 1 as described above, further including a pole core 2 and a conductive member 3, the pole core 2 having a first tab 21 and a second tab 22 led out; the shell body 11, the first cover 13 and the second cover 14 enclose to form an accommodating space, and the pole core 2, the first pole lug 21 and the second pole lug 22 are arranged in the accommodating space;

the conductive component 3 is fixedly connected with the shell body 11, and the conductive component 3 is arranged in an insulating way with the shell body 11; the first tab 21 is electrically connected to the conductive member 3, and the second tab 22 is electrically connected to the case body 11.

The battery in the embodiment of the application adopts the battery shell 1, so that the positioning precision of the first cover body 13 and the second cover body 14 is higher, and the sealing performance of the battery is better.

Referring to fig. 3-5 and 11, in one embodiment, the housing body 11 is provided with a first through hole 101, and the support 12 is provided with a second through hole 102; the first perforation 101 and the second perforation 102 are in communication with each other;

the conductive component 3 includes a pole 31, a conductive sheet 32 and an insulating pad 33, a portion of the pole 31 is disposed in the first through hole 101 and the second through hole 102, and the insulating pad 33 is disposed between the pole 31 and the housing body 11;

the conductive sheet 32 is electrically connected with the pole 31, and the supporting member 12 is located between the case body 11 and the conductive sheet 32, so that the case body 11 and the conductive sheet 32 are kept in an insulating arrangement; the first tab 21 is connected to the conductive sheet 32.

In this specific example, the pole 31 passes through the insulating pad 33, the case body 11, and the support 12 in this order from the outside to the inside; it will be appreciated that the insulating pad 33 is also provided with connection holes through which the pole 31 passes.

The cross section of the pole 31 presents a shape similar to a T, and comprises a column body and a column head, wherein the column head is positioned outside the accommodating space, one end of the column body is connected with the column head, the column body is penetrated in the first perforation 101 and the second perforation 102, one part of the insulating pad 33 is clamped between the column head and the shell body 11, and the other part of the insulating pad 33 is clamped between the column body and the shell body 11; the conductive sheet 32 is located in the receiving space and connected to the other end of the cylinder, alternatively, the other end of the cylinder may be riveted to the conductive sheet 32 by pressing so as to electrically connect the pole 31 and the conductive sheet 32. One side of the conductive sheet 32 is abutted against the supporting member 12, and the other side is connected with the first tab 21.

Since the support 12 is made of an insulating material and the support 12 is disposed inside the case body 11, there is no need to provide an additional insulating member between the conductive sheet 32 and the case body 11. The insulating pad 33 and the supporting member 12 are disposed between the case body 11 and the conductive member 3, so as to maintain an insulating arrangement between the case body 11 and the conductive member 3, and prevent the case body 11 from directly contacting the conductive member 3 to cause a short circuit of the battery.

In addition, the battery also comprises a sealing plug 4 and a sealing cover 5, the shell body 11 is provided with a first liquid injection hole 103, the support piece 12 is provided with a second liquid injection hole 104, and the first liquid injection hole 103 is communicated with the second liquid injection hole 104 to form a liquid injection hole; electrolyte is injected into the battery shell 1 through the electrolyte injection hole, after the electrolyte injection is finished, the sealing plug 4 is plugged into the electrolyte injection hole, then the sealing cover 5 is pressed on the sealing plug 4, and the sealing cover 5 is fixedly connected to the shell body 11 so as to seal the electrolyte injection hole. Specifically, the sealing cover 5 may be fixedly connected with the case body 11 by welding.

Referring to fig. 11, in one embodiment, the support member 12 is provided with a first relief portion 121, and the second tab 22 is connected to the housing body 11 at a position of the first relief portion 121.

In a specific example, the first electrode may be welded to the conductive sheet 32, and the second electrode may be welded to the case body 11 at a position corresponding to the first escape portion 121, in such a manner that the electrode of the battery is drawn out.

Alternatively, the first electrode may comprise a single first tab 21; alternatively, the first electrode may include a plurality of first tabs 21, and after the plurality of first tabs 21 are folded, the first tabs 21 are first pre-welded, and then the pre-welded first tabs 21 are electrically connected to the conductive assembly 3. Alternatively, the first electrode may include a plurality of first tabs 21 and first connectors 23, and the plurality of first tabs 21 after being folded are welded to the first connectors 23, and then the first connectors 23 are electrically connected to the conductive assembly 3.

Alternatively, the second electrode may comprise a single second electrode ear 22; alternatively, the second electrode may include a plurality of second tabs 22, and the plurality of second tabs 22 are first pre-welded after being folded, and then the pre-welded plurality of second tabs 22 are electrically connected to the case body 11. Alternatively, the second electrode includes a plurality of second tabs 22 and a second adaptor 24, and the second tabs 22 and the second adaptor 24 are welded together, and then the second adaptor 24 is electrically connected to the case body 11.

According to yet another embodiment of the present application, there is provided an electronic device including a battery as described above.

The foregoing embodiments mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in consideration of brevity of line text, no further description is given here.

Although specific embodiments of the present application have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims (19)

1. A battery case, comprising:

a case body (11), the case body (11) having a first opening;

a support (12), wherein the support (12) is connected to the inner side of the shell body (11) and is arranged close to the shell body (11); the support member (12) is provided with a first avoidance part (121) for avoiding an electrode assembly of the battery;

the first cover body (13), the first cover body (13) covers and locates the first opening, support piece (12) towards first side terminal surface of first opening with first cover body (13) butt.

2. The battery case according to claim 1, wherein the first cover (13) is hermetically connected to the case body (11).

3. The battery case according to claim 1, wherein a first side end surface of the case body (11) facing the first opening portion protrudes from a first side end surface of the support member (12) facing the first opening portion.

4. The battery case according to claim 1, wherein the case body (11) has a second opening portion provided opposite to the first opening portion in a first direction;

the battery shell further comprises a second cover body (14), the second cover body (14) is covered on the second opening part, the second cover body (14) is abutted with the second side end face of the supporting piece (12) towards the second opening part, and the second cover body (14) is in sealing connection with the shell body (11).

5. The battery case according to claim 4, wherein a second side end surface of the case body (11) toward the second opening portion protrudes from a second side end surface of the support member (12) toward the second opening portion.

6. The battery case according to claim 5, wherein the first cover (13) and the second cover (14) are both abutted against the inner side of the case body (11).

7. The battery case according to claim 6, wherein the first cover (13) continuously abuts against the inside of the case body (11) along the circumferential direction of the first cover (13);

along the circumferential direction of the second cover body (14), the second cover body (14) continuously abuts against the inner side of the shell body (11).

8. The battery housing according to claim 1, wherein the support (12) is a support of insulating material.

9. The battery case according to claim 1, wherein the case body (11) has a first side wall (111), a second side wall (112), a top wall (113), and a bottom wall (114); wherein the first side wall (111) is disposed opposite the second side wall (112), and the top wall (113) is disposed opposite the bottom wall (114); the top wall (113) and the bottom wall (114) are both connected with the first side wall (111), and the top wall (113) and the bottom wall (114) are both connected with the second side wall (112);

the support piece (12) is in fit connection with the first side wall (111), the second side wall (112), the top wall (113) and the bottom wall (114).

10. The battery case according to claim 9, wherein the support member (12) is provided with the first escape portion (121) corresponding to the top wall (113), and the first escape portion (121) is provided through the thickness direction of the support member (12).

11. The battery case according to claim 10, wherein the first escape portion (121) is a through-hole structure penetrating the thickness direction of the support member (12); or,

the first relief portion (121) extends through the thickness direction of the support member (12) and extends through at least one side of the support member (12) in a first direction.

12. The battery case according to claim 9, wherein the top wall (113) includes a first connection plate (1131) and a second connection plate (1132), at least part of the structure of the first connection plate (1131) and at least part of the structure of the second connection plate (1132) being laminated and connected to form a connection part (1130);

the support (12) is provided with a second avoidance portion (122) for avoiding the connection portion (1130).

13. The battery case according to claim 4, wherein the first cover body (13) includes a first connection portion (131) and a first protruding portion (132), the first connection portion (131) is disposed around the first protruding portion (132), the first connection portion (131) abuts against a first side end face of the support member (12) and is in sealing connection with the case body (11), and the first protruding portion (132) is disposed protruding in a direction away from the second opening portion in a first direction.

14. The battery case according to claim 5, wherein the second cover (14) includes a second connection portion (141) and a second protruding portion (142), the second connection portion (141) is disposed around the second protruding portion (142), the second connection portion (141) abuts against a second side end surface of the support member (12) and is in sealing connection with the case body (11), and the second protruding portion (142) is provided protruding in a direction away from the first opening portion in the first direction.

15. A battery, characterized in that the battery comprises a battery housing (1) according to any one of claims 1-14.

16. The battery according to claim 15, further comprising a pole piece (2) and a conductive component (3), wherein the pole piece (2) is led with a first pole tab (21) and a second pole tab (22); the shell body (11), the first cover body (13) and the second cover body (14) are enclosed to form an accommodating space, and the pole core (2), the first pole lug (21) and the second pole lug (22) are arranged in the accommodating space;

the conductive component (3) is connected with the shell body (11), and the conductive component (3) is arranged in an insulating way with the shell body (11); the first tab (21) is connected with the conductive component (3), and the second tab (22) is connected with the shell body (11).

17. The battery according to claim 16, wherein the casing body (11) is provided with a first perforation (101) and the support (12) is provided with a second perforation (102); -said first perforation (101) and said second perforation (102) are in communication with each other;

the conductive assembly (3) comprises a pole (31), a conductive sheet (32) and an insulating pad (33), wherein a part of the pole (31) is penetrated into the first through hole (101) and the second through hole (102), and the insulating pad (33) is arranged between the pole (31) and the shell body (11);

the conductive sheet (32) is connected with the pole (31), and the support (12) is positioned between the shell body (11) and the conductive sheet (32); the first tab (21) is connected to the conductive sheet (32).

18. The battery according to claim 16, characterized in that the second tab (22) is connected to the case body (11) at the position of the first escape portion (121).

19. An electronic device comprising the battery of any one of claims 15-18.