CN218569011U

CN218569011U - Battery and electronic equipment

Info

Publication number: CN218569011U
Application number: CN202223038753.0U
Authority: CN
Inventors: 盛东辉; 吕远轰; 谢继春
Original assignee: Zhuhai Cosmx Battery Co Ltd
Current assignee: Zhuhai Cosmx Battery Co Ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-03-03
Anticipated expiration: 2032-11-15

Abstract

The utility model provides a battery and an electronic device, which form a holding cavity by matching a first shell and a cover plate, at least two electric cores are arranged in the holding cavity, and at least two electric cores are arranged side by side; the battery cell comprises a battery cell body and a second shell wrapping the battery cell body, the second shell comprises a first sealed edge, and a tab of the battery cell body extends out of the first sealed edge; the pole ear is connected with the connecting component. Therefore, the battery core is secondarily protected through the first shell and the cover plate, and the safety and the reliability of the battery are improved.

Description

Battery and electronic equipment

Technical Field

The utility model relates to a battery technology field especially relates to a battery and electronic equipment.

Background

At present, batteries are installed in electronic equipment such as a tablet personal computer and a notebook computer, but because the electronic equipment has the requirements of high capacity and high power, the solution is to place two or more battery cores side by side to improve the capacity and the power, the prior art usually adopts the modes of injection molding plastic paper and the like to place two or more battery cores side by side, and adopts the injection molding plastic frame and the plastic paper to fix two or more battery cores, so that the strength is not high, and the battery can not be coated on each surface of a soft package battery.

Therefore, the prior art has a problem that the cladding degree of the battery cell is insufficient in a mode of fixing two or more battery cells, so that the safety and reliability of the battery are poor.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a battery and electronic equipment to the security and the relatively poor problem of reliability of battery among the solution prior art.

In a first aspect, an embodiment of the present invention provides a battery, including: the battery comprises at least two battery cells, a first shell, a cover plate and a connecting assembly;

the first shell and the cover plate are matched to form an accommodating cavity, at least two battery cells are arranged in the accommodating cavity, and the at least two battery cells are arranged side by side;

the battery cell comprises a battery cell body and a second shell wrapping the battery cell body, the second shell comprises a first sealing edge, and a tab of the battery cell body extends out of the first sealing edge;

the pole ear is connected with the connecting component.

Optionally, the tabs of any two adjacent cells are connected through an adapter sheet.

Optionally, the joint between the tabs of any two adjacent cells, which is connected through the adapter sheet, is coated with insulating adhesive paper.

Optionally, the first sealing edge is located on a first side edge of the first side surface of the battery cell, the first sealing edge is bent towards a second side edge of the first side surface, and the first side edge and the second side edge are arranged in parallel;

the first side face is a face of the battery core adjacent to the connecting assembly.

Optionally, the tab is bent towards the first side edge along the cell body.

Optionally, the adapter plate is connected to a surface of the tab facing away from the first side surface.

Optionally, the patch panel is connected to the connection assembly.

Optionally, the connection assembly comprises: an outer conductive member and an inner conductive member;

the outer conductive piece penetrates through the first shell to be fixedly connected with the inner conductive piece, and the inner conductive piece is connected with the pole lug.

Optionally, the connection assembly further comprises: an outer insulating sheet and an inner insulating sheet;

the outer conductive piece penetrates through the first shell and is fixedly connected with the inner conductive piece, the outer insulating piece and the inner insulating piece are clamped and fixed, the outer insulating piece is located outside the accommodating cavity, and the inner insulating piece is located in the accommodating cavity.

Optionally, the second housing further comprises: second edge sealing;

the second sealing edge is positioned on a third side edge of the second side surface of the battery cell, the second sealing edge is bent towards a fourth side edge of the second side surface along the battery cell body, and the third side edge and the fourth side edge are arranged in parallel;

the second side surface comprises adjacent surfaces of any two adjacent battery cells and surfaces arranged in parallel with the adjacent surfaces.

Optionally, a buffer is filled in a gap between the first casing and the battery cell and/or a positioning rib is arranged in the first casing, and the first casing and/or the cover plate are made of metal.

In a second aspect, an embodiment of the present application provides an electronic device, including the battery of any one of the above.

The embodiment of the utility model provides a battery and electronic equipment, cooperate through first casing and apron and form a holding chamber, at least two electric cores set up in the holding chamber, at least two electric cores are placed side by side; the battery cell comprises a battery cell body and a second shell wrapping the battery cell body, the second shell comprises a first sealing edge, and a tab of the battery cell body extends out of the first sealing edge; the pole ear is connected with the connecting component. Therefore, the battery cell is secondarily protected through the first shell and the cover plate, and the safety and the reliability of the battery are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art description will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a battery provided in an embodiment of the present invention;

fig. 2 is a schematic diagram of a partially enlarged structure of a in fig. 1 according to an embodiment of the present invention;

fig. 3 is a schematic structural view illustrating a connection between an adaptor plate and a tab according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a connection assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of the connection assembly and the tab provided by the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The terms "first," "second," and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be understood that the structures so used are interchangeable under appropriate circumstances such that embodiments of the invention may be practiced in sequences other than those illustrated or described herein, and the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., a first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

As shown in fig. 1, a battery includes: the battery comprises at least two battery cells 10, a first shell 20, a cover plate 30 and a connecting assembly 40 penetrating through the first shell;

the first casing 20 and the cover plate 30 cooperate to form an accommodating cavity, at least two battery cells 10 are arranged in the accommodating cavity, and the at least two battery cells 10 are arranged side by side;

the battery cell 10 comprises a battery cell 10 body and a second shell wrapping the battery cell 10 body, the second shell comprises a first sealed edge 102, and a tab 101 of the battery cell 10 body extends out of the first sealed edge 102;

the tab 101 is connected with the connection assembly 40.

In the embodiment of the present application, each battery cell 10 has a positive electrode tab and a negative electrode tab, and the positive electrode tab and the negative electrode tab of each battery cell 10 may be respectively connected to the connection assembly 40.

Further, the connection between the tab 101 and the connection assembly 40 may be welding or other connection manners, which are not limited herein.

Optionally, the material of the second shell is at least one of polypropylene, polyethylene, polyimide and polyethylene terephthalate.

Optionally, the second shell is an aluminum plastic film, the thickness of the aluminum plastic film is less than or equal to 0.2mm, and further, the aluminum plastic film can be a single-layer film.

Optionally, the accommodating cavity contains electrolyte required by the battery cell.

The utility model provides a battery, a holding cavity is formed by matching a first shell 20 and a cover plate 30, at least two electric cores 10 are arranged in the holding cavity, and at least two electric cores 10 are arranged side by side; the battery cell 10 comprises a battery cell 10 body and a second shell wrapping the battery cell 10 body, the second shell comprises a first sealed edge 102, and a tab 101 of the battery cell 10 body extends out of the first sealed edge 102; the tab 101 is connected with the connection assembly 40. This secondarily protects the battery cell 10 by the first case 20 and the cap plate 30, thereby improving the safety and reliability of the battery.

Optionally, as shown in fig. 2, the tabs 101 of any two adjacent battery cells 10 are connected through the adaptor sheet 50.

It should be noted that the positive tab 101 of one battery cell 10 in two adjacent battery cells 10 may be connected to the negative tab 101 of another battery cell 10 through the interposer 50, or the positive tab 101 of one battery cell 10 in two adjacent battery cells 10 may be connected to the positive tab 101 of another battery cell 10 through the interposer 50 and the negative tab 101 of one battery cell 10 is connected to the negative tab 101 of another battery cell 10 through another interposer 50, and further, the connection manner may be laser welding.

Optionally, in some embodiments, the patch 50 is connected to the connection assembly 40.

Alternatively, the adaptor plate 50 and the connecting assembly 40 may be connected by laser welding.

Optionally, as shown in fig. 3, a joint between the tabs 101 of any two adjacent battery cells, which is connected by the interposer 50, is coated with an insulating adhesive tape 60.

It should be noted that, the insulating adhesive paper 60 is used for covering, the shape of the insulating adhesive paper 60 may be a "U" shape, and one patch 50 has two overlapping areas respectively covering one "U" shape of the insulating adhesive paper 60.

Optionally, as shown in fig. 4 and 5, a through hole 201 is provided on the first housing 20, one end of the connecting assembly 40 is connected to the tab 101, and the other end of the connecting assembly 40 passes through the through hole 201 and is located outside the accommodating cavity.

Optionally, in some embodiments, the connection assembly 40 comprises: outer conductor 401 and inner conductor 402;

the outer conductor 401 passes through the through hole 201 and is fixedly connected with the inner conductor 402, and the inner conductor 402 is connected with the tab 101.

Optionally, in some embodiments, a through hole 201 is provided on the first housing 20, one end of the connection assembly 40 is connected to the interposer 50, and the other end of the connection assembly 40 passes through the through hole 201 and is located outside the accommodating cavity.

the outer conductor 401 passes through the through hole 201 and is fixedly connected with the inner conductor 402, and the inner conductor 402 is connected with the adapter plate 50.

Optionally, in some embodiments, the connection assembly 40 further comprises: an outer insulating sheet 403 and an inner insulating sheet 404;

the outer conductive member 401 passes through the through hole 201 and is fixedly connected with the inner conductive member 402, and clamps and fixes the outer insulating sheet 403 and the inner insulating sheet 404, the outer insulating sheet 403 is located outside the accommodating cavity, and the inner insulating sheet 404 is located inside the accommodating cavity.

Optionally, the outer conductive member and the inner conductive member are metal materials, and the metal materials may be: at least one of Ni, ti, cu, ag, au, pt, fe, co, cr, W, mo, al, mg, K, na, ca, sr, ba, si, ge, sb, pb, in, zn, stainless steel (SUS).

Optionally, the material of the outer conductive member and the inner conductive member may also be at least one of stainless steel, aluminum, copper, and copper-plated nickel.

Optionally, the thickness of the outer conductive piece and the inner conductive piece is less than or equal to 0.5mm.

Alternatively, the outer insulation sheet 403 and the inner insulation sheet 404 may be made of at least one of PP, PET, PE, fluororubber.

Optionally, the thickness of the outer insulation sheet 403 and the inner insulation sheet 404 is less than or equal to 0.2mm.

Optionally, in some embodiments, the first sealing edge 102 is located at a first side edge of the first side surface of the battery cell 10, the first sealing edge 102 is bent towards a second side edge of the first side surface, and the first side edge and the second side edge are arranged in parallel;

the first side face is a face of the battery cell 10 adjacent to the connection assembly 40.

Optionally, in some embodiments, the tab 101 is bent toward the first side edge along the battery cell 10 body.

Optionally, in some embodiments, the interposer 50 is connected to the surface of the tab 101 facing away from the first side.

The connection between the adaptor sheet 50 and the tab 101 may be performed by laser welding.

Optionally, in some embodiments, the second housing further comprises: second edge sealing;

the second sealed edge is located on a third side edge of the second side surface of the battery cell 10, the second sealed edge is bent towards a fourth side edge of the second side surface along the battery cell 10 body, and the third side edge and the fourth side edge are arranged in parallel;

the second side surface includes adjacent surfaces of any two adjacent battery cells 10 and surfaces parallel to the adjacent surfaces.

Optionally, in some embodiments, a gap between the first casing 20 and the battery cell 10 is filled with a buffer.

Optionally, positioning ribs are provided within the first housing 20.

Alternatively, the first case 20 and the cover plate 30 are metal materials, and the metal materials may be: at least one of Ni, ti, cu, ag, au, pt, fe, co, cr, W, mo, al, mg, K, na, ca, sr, ba, si, ge, sb, pb, in, zn, stainless steel (SUS).

Alternatively, the first case 20 and the cover plate 30 are made of stainless steel or aluminum.

Optionally, the cover plate 30 has a thickness of 0.02mm to 0.5mm.

Optionally, the thickness of the first housing 20 is between 0.02mm and 0.5mm.

The embodiment of the application provides electronic equipment, which comprises the battery.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus of the embodiments of the present invention is not limited to performing functions in the order discussed, but may include performing functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

The above description is for illustrative purposes only and is not intended to be limiting, and the present invention is not limited to the above embodiments, and many modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims

1. A battery, comprising: the battery comprises at least two battery cells, a first shell, a cover plate and a connecting assembly penetrating through the first shell;

the first shell and the cover plate are matched to form an accommodating cavity, the at least two battery cells are arranged in the accommodating cavity, and the at least two battery cells are arranged side by side;

the battery cell comprises a battery cell body and a second shell wrapping the battery cell body, the second shell comprises a first sealing edge, and a lug of the battery cell body extends out of the first sealing edge;

the pole lug is connected with the connecting assembly.

2. The battery of claim 1, wherein the tabs of any two adjacent cells are connected by an adaptor sheet.

3. The battery of claim 2, wherein the joint between the tabs of any two adjacent cells, which is connected by the interposer, is coated with an insulating adhesive paper.

4. The battery of claim 2, wherein the first seal edge is located at a first side edge of the first side surface of the cell, the first seal edge is bent toward a second side edge of the first side surface, and the first side edge and the second side edge are arranged in parallel;

the first side face is a face of the battery cell adjacent to the connecting assembly.

5. The battery of claim 4, wherein the tab is bent along the cell body toward the first side edge.

6. The battery of claim 5, wherein the interposer is coupled to a face of the tab facing away from the first side.

7. The battery of claim 2, wherein the interposer is coupled to the connection assembly.

8. The battery of claim 1, wherein the connection assembly comprises: an outer conductive member and an inner conductive member;

the outer conductive piece penetrates through the first shell and is fixedly connected with the inner conductive piece, and the inner conductive piece is connected with the lug.

9. The battery of claim 8, wherein the connection assembly further comprises: an outer insulating sheet and an inner insulating sheet;

10. The battery of claim 1, wherein the second housing further comprises: second edge sealing;

the second side surface comprises any two adjacent surfaces of the battery cell which are adjacently arranged and surfaces which are parallel to the adjacent surfaces.

11. The battery of claim 1, wherein a gap between the first casing and the battery cell is filled with a buffer and/or a positioning rib is provided in the first casing, and the first casing and/or the cover plate are made of metal.

12. An electronic device characterized by comprising a battery according to any one of claims 1 to 11.