CN212907827U

CN212907827U - Battery cell, battery using battery cell and electronic device

Info

Publication number: CN212907827U
Application number: CN202021930560.4U
Authority: CN
Inventors: 罗哲; 黄俭善; 孙勇辉; 涂福意
Original assignee: Dongguan Nvt Technology Co Ltd
Current assignee: Dongguan Nvt Technology Co Ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-04-06
Anticipated expiration: 2030-09-07

Abstract

The application provides an electric core, including electric core body, a book portion of sealing and reinforcement piece, it locates to roll over the portion of sealing on the electric core body, the reinforcement piece is including being located main part in the book portion of sealing, and follow the connecting portion that the main part extends, connecting portion are used for connecting exterior structure. The application also provides a battery and an electronic device, the battery with electron device adopts foretell electric core, through adopting foretell electric core, can make electric core and external structure be connected more stable, and electric core is difficult to be damaged when carrying out drop test or bumping.

Description

Battery cell, battery using battery cell and electronic device

Technical Field

The application relates to the technical field of batteries, in particular to an electric core, a battery with the electric core and an electronic device with the electric core.

Background

The double faced adhesive tape of current electric core mainly rely on the bottom surface to fix, and is great when the thickness of electric core to highly surpassing 1.5 meters when dropping the test even 2 meters, appearing the double faced adhesive tape easily and only can glue the plastic-aluminum membrane of electric core bottom surface and can't block the plastic-aluminum membrane of rolling up a core and other positions and take place the displacement, cause dark hole face to be broken by dashing, make electric core inefficacy. In order to avoid this problem, a rubber frame is usually disposed outside the battery cell to fix the battery cell, but the rubber frame is costly and is easily interfered with the battery cell to scratch the battery cell.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a battery cell, and a battery and an electronic device using the battery cell, which are capable of making the battery cell more stable to mount and improving the shock resistance of the battery cell.

The application provides an electric core, including electric core body, a book portion of sealing and reinforcement piece, it locates to roll over the portion of sealing on the electric core body, the reinforcement piece is including being located main part in the book portion of sealing, and follow the connecting portion that the main part extends, connecting portion are used for connecting exterior structure.

In a possible implementation manner, the connecting portion is provided with a mounting hole matched with the external structure.

In one possible implementation, the connecting portion is a hook structure connected to the external structure.

In a possible implementation manner, the hook structure is T-shaped, U-shaped or L-shaped.

In a possible implementation manner, the reinforcing member is a sheet structure or a strip structure.

In one possible implementation, the reinforcement is made of one of a plastic material, a metal material, and a carbon fiber composite material.

In a possible implementation manner, an insulating member is further disposed between the reinforcing member and the folding portion.

In one possible implementation manner, the battery cell includes a tab, the tab is disposed on the battery cell body, the battery cell body includes a first surface and a second surface, the tab is located between the first surface and the second surface, and the first surface and the second surface are perpendicular to the extending direction of the tab, the first surface and the second surface are respectively provided with the folding and sealing portion, and each of the folding and sealing portions is respectively provided with one of the reinforcing members.

The application also provides a battery, the battery includes any of the above-mentioned electricity core.

The application further provides an electronic device, and the electronic device comprises any one of the battery cores.

The battery cell is characterized in that the reinforcing piece is embedded into the folding and sealing part to fix the reinforcing piece, and then the reinforcing piece is connected with an external structure to fix the battery cell. By adopting the battery cell, the battery cell can be installed more firmly, and the impact resistance of the battery cell in the drop test process is improved.

Drawings

Fig. 1 is a perspective view of a battery cell in a first embodiment of the application.

Fig. 2 is an exploded view of the cell shown in fig. 1.

Fig. 3 is an exploded view of the cell shown in fig. 1 including an insulator.

Fig. 4 is a perspective view of a battery cell in a second embodiment of the application.

Fig. 5 is a perspective view of a battery cell in a third embodiment of the application.

Fig. 6 is a perspective view of a battery cell in a fourth embodiment of the application.

Fig. 7 is a perspective view of a battery cell in a fifth embodiment of the application.

Fig. 8 is a perspective view of a battery cell in a sixth embodiment of the application.

Fig. 9 is a perspective view of the reinforcing member of fig. 8 with the connecting portion thereof opened downward.

Fig. 10 is a perspective view of a battery cell according to a seventh embodiment of the present application.

Fig. 11 is a perspective view of a battery cell in an eighth embodiment of the application.

Fig. 12 is a perspective view of a battery according to a ninth embodiment of the present application.

Fig. 13 is a perspective view of an electronic device according to a tenth embodiment of the present application.

Description of the main elements

Battery cell 100

Battery cell body 10

First surface 11

Second surface 12

Folding seal 20

Reinforcing member 30

Main body 31

Connecting part 32

Mounting hole 321

Insulating member 40

Tab 50

Battery 200

Outer casing 60

Electronic device 300

Battery compartment 70

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Through adopting foretell electric core set up the reinforcement on the electric core, the reinforcement stretches out this external to electric core to be connected with external structure. Through the connection of reinforcement and exterior structure, can make more firm during the installation of electricity core, can promote its ability of shocking resistance when falling the test. Furthermore, the situation that the battery cell is damaged can be avoided.

In the following, some embodiments of the present application will be described in detail, and features in the embodiments and the embodiments described below may be combined with each other without conflict.

First embodiment

Referring to fig. 1 and fig. 2, a battery cell 100 is provided, which includes a battery cell body 10, a folded sealing portion 20 and a reinforcing member 30, where the folded sealing portion 20 is disposed on the battery cell body 10, the reinforcing member 30 includes a main body portion 31 located in the folded sealing portion 20, and a connecting portion 32 extending from the main body portion 31, and the connecting portion 32 is used for connecting an external structure (not shown).

Referring to fig. 2, an electrode assembly (not shown) formed by stacking or winding a positive electrode sheet, a separator, and a negative electrode sheet is enclosed in the cell body 10. The structure and the forming manner of the battery cell body 10 are common in the existing design, and the detailed structure of the battery cell body 10 is not repeated here.

To better explain the structure of the battery cell 100, the description will be made with reference to the vertical, horizontal, and longitudinal coordinates. The cell body 10 includes a first surface 11 and a second surface 12, and further, the first surface 11 is a surface on the left side of the cell body 10, and the second surface 12 is a surface on the right side of the cell body 10, that is, the first surface 11 and the second surface 12 are two opposite surfaces of the cell body 10.

The battery cell 100 further includes a tab 50, where the tab 50 is disposed on the battery cell body 10 and extends along the forward direction. The tab 50 is located between the first surface 11 and the second surface 12, and the first surface 11 and the second surface 12 are perpendicular to the extending direction of the tab 50.

Referring to fig. 2, the folding portion 20 is formed by bending after wrapping the cell body 10 and performing hot-press packaging. Further, after the surface of the battery core 100 is provided with the aluminum-plastic film, the aluminum-plastic film is hot-pressed, packaged and bent to form the folding portion 20, the folding portion 20 can be divided into a side sealing edge and a top sealing edge, and the side sealing edge and the top sealing edge are formed at the closed position of the aluminum-plastic film. The side seal edges are edges of the battery cell body 10 where the tab 50 is not disposed, such as left and right side edges shown in fig. 2. The top sealed edge is an edge of the battery cell body 10 provided with the tab 50. This well package mode and side banding and the structure of top banding are comparatively common among the prior art, here, no longer describe repeatedly.

In an embodiment, the first surface 11 and the second surface 12 of the cell body 10 are respectively provided with the folding seals 20, and each folding seal 20 is provided with one reinforcing member 30, that is, the reinforcing member 30 is provided at the side sealing position. The two reinforcing members 30 are connected with an external structure, so that the battery cell 100 can be installed more stably.

It is to be understood that, in other embodiments, the number of the folding seals 20 disposed on the cell body 10 is not limited thereto, and may also be one or three.

In another embodiment, the folding seal part 20 may be further disposed at one end of the cell body 10 where the tab 50 is disposed, and the reinforcing member 30 is disposed in the folding seal part 20, that is, the reinforcing member 30 is disposed at the top sealed edge position. The cell 100 can be more stably mounted by connecting the reinforcing member 30 at this position to an external structure.

Referring to fig. 2, in an embodiment, the reinforcing member 30 is a strip structure, and a distance of the reinforcing member 30 along the vertical direction is smaller than a distance of the folded portion 20 along the vertical direction, so that the folded portion 20 can cover the reinforcing member 30.

It is understood that in other embodiments, the reinforcement 30 may also be a sheet-like structure.

In one embodiment, the reinforcement 30 is made of a plastic material.

It is understood that, in other embodiments, the material of the reinforcement member 30 is not limited thereto, and may be made of a metal material or a carbon fiber composite material.

The reinforcing member 30 includes the main body 31 and the connecting portion 32 extending from the main body 31. The main body 31 may be fitted into the folded and sealed portion 20, that is, the main body 31 may be provided in the folded and sealed portion 20 before the folded and sealed portion 20 is folded, and an adhesive may be applied to the main body 31 or the folded and sealed portion 20. After the folding part 20 is folded, the main body part 31 and the folding part 20 are bonded together, and the folding part 20 wraps the main body part 31, so that the main body part 31 is fixed in the folding part 20. The main body 31 extends to form the connecting portions 32 at two ends of the main body along the front-back direction, and the connecting portions 32 are exposed outside the battery cell body 10 and the folding sealing portion 20 to be capable of being connected with an external structure.

In an embodiment, the connecting portion 32 is a connecting piece extending from the main body portion 31, and when the connecting portion is connected to an external structure, a structure adapted to the connecting piece, such as a slot, is disposed on the external structure, and the connecting portion 32 is clamped in the slot, so that the reinforcement 30 is fixed, and the battery cell 100 is fixed to the external structure.

It is understood that in other embodiments, the main body portion 31 and the connecting portion 32 may be an integrally formed structure. And the fixing manner of the connecting piece and the external structure is not limited to this, and the connecting piece can also be fixed with the external structure by welding.

Referring to fig. 3, when the reinforcing member 30 is made of a metal material, an insulating member 40 may be disposed between the main body 31 of the reinforcing member 30 and the folded and sealed portion 20 to insulate the reinforcing member 30, so as to prevent electrical conduction between the reinforcing member 30 and the folded and sealed portion 20.

In one embodiment, the insulating member 40 is an insulating glue. It is understood that in other embodiments, the insulator 40 may also be an insulating spacer, an insulating strip, or the like.

Second embodiment

Referring to fig. 4, in the second embodiment, the battery cell 100 is substantially the same as that in the first embodiment, and the difference is that a mounting hole 321 adapted to the external structure is formed in the connecting portion 32. In fixing the connecting portion 32 and the external structure, a fastening member, such as a bolt, may be disposed at the position of the mounting hole 321, and the connecting portion 32 and the external structure are fixed by a nut and the bolt.

It is understood that the mounting holes 321 may also be threaded holes, and the connecting portion 32 and the external structure are fixed by fasteners, such as screws, so as to fix the battery cell 100 on the external structure.

Third embodiment

Referring to fig. 5, in a third embodiment, the battery cell 100 is substantially the same as that in the first embodiment, and the difference is that the connection portion 32 is a hook structure connected to the external structure.

Specifically, the connecting portion 32 is an L-shaped hook extending from the main body portion 31. The connecting portion 32 in an L shape is fastened to the external structure, so that the battery cell 100 is fixed to the external structure.

Fourth embodiment

Referring to fig. 6, in a fourth embodiment, the battery cell 100 is substantially the same as that in the third embodiment, and the difference is that a mounting hole 321 is formed in the L-shaped connecting portion 32, a fastening member, such as a stud and a nut, may be disposed at a position of the mounting hole 321, or the mounting hole 321 is a threaded hole, and a screw is disposed at a position of the threaded hole. The function of fixing the battery cell 100 and the external structure can also be achieved.

Fifth embodiment

Referring to fig. 7, in a fifth embodiment, the battery cell 100 is substantially the same as that in the third embodiment, except that the connection portion 32 has an arc-shaped hook structure. The hook structure is similar to a handle structure of an umbrella, and is clamped on the external structure through the arc-shaped connecting part 32, so that the battery cell 100 is fixed on the external structure.

Sixth embodiment

In the sixth embodiment, the battery cell 100 is substantially the same as that in the third embodiment, and the difference is that the connecting portion 32 has a U-shaped hook structure with an upward opening, as shown in fig. 8. In another embodiment, the connecting portion 32 may be replaced by a hook structure with a downward opening and a U-shape, as shown in fig. 9.

By using the U-shaped connecting portion 32, it can also be fixed to the external structure, so that the battery cell 100 is fixed to the external structure.

Seventh embodiment

Referring to fig. 10, in a seventh embodiment, the battery cell 100 is substantially the same as that in the third embodiment, except that the connection portion 32 is a T-shaped hook structure, and the T-shaped connection portion 32 is adapted to the external structure, so that the connection portion 32 is fastened to the external structure, so that the battery cell 100 is fixed to the external structure.

Eighth embodiment

Referring to fig. 11, in an eighth embodiment, the battery cell 100 is substantially the same as that in the seventh embodiment, except that the T-shaped connecting portion 32 extends in an arc shape at a portion perpendicular to the main body portion 31 by a predetermined distance. The connecting portion 32 is adapted to the external structure, so that the connecting portion is fixed to the external structure, and the battery cell 100 is fixed to the external structure.

Ninth embodiment

Referring to fig. 12, in a ninth embodiment, the present application further provides a battery 200, where the battery 200 includes the battery cell 100 in the above embodiments, because all the advantages of using the battery cell 100 are provided.

The battery 200 includes a casing 60, the external structure in the above embodiment may be the casing 60 in this embodiment, the battery cell 100 is disposed in the casing 60, and the battery cell 100 is fixed to the casing 60 through the connecting portion 32. The connecting portion 32 of the battery cell 100 may be replaced with respect to different structures of the casing 60, or the casing 60 may be provided with a structure such as a card slot capable of being matched with the connecting portion 32 according to the connecting portion 32 in the process of being matched with the connecting portion 32, so that the connecting portion 32 can be fixed in the casing 60, and the battery cell 100 is fixed on the casing 60.

The battery 200 may be a battery 200 of a mobile terminal, such as the battery 200 in a mobile phone, tablet computer, etc. It is understood that the application side of the battery 200 is not limited thereto.

Tenth embodiment

Referring to fig. 13, in a tenth embodiment, the present application further provides an electronic device 300, where the electronic device 300 includes the battery cell 100 in the above embodiments, because all the advantages of using the battery cell 100 are provided.

The electronic device 300 includes a battery compartment 70, the battery cell 100 is accommodated in the battery compartment 70, an installation portion (not shown) is disposed in the battery compartment 70 and is matched with the connection portion 32, and the battery compartment 70 is an external structure in the above embodiment. The battery cell 100 is fixed in the battery compartment 70 by the fixed connection between the connection portion 32 and the mounting portion.

The electronic device 300 may be a mobile terminal, such as a mobile phone, a notebook computer, a tablet computer, etc. It is to be understood that the kind of the electronic device 300 is not limited thereto.

To sum up, in the embodiment of the present application, the battery cell 100 is provided, and the reinforcing member 30 is embedded in the folding sealing portion 20, and the connecting portion 32 of the reinforcing member 30 is fixed to the external structure, so that the battery cell 100 is fixed to the external structure. Compared with the prior art that the battery cell 100 is fixed by using a double-sided adhesive tape, the battery cell 100 can be more firmly installed by fixing the connecting portion 32. When a drop test is performed, the impact resistance of the battery cell 100 is also increased, and the probability of breakage of the battery cell 100 when the battery cell 100 is subjected to external impact is further reduced.

In addition, those skilled in the art should recognize that the foregoing embodiments are illustrative only, and not limiting, and that appropriate changes and modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A cell, comprising:

a cell body;

the folding and sealing part is arranged on the battery cell body;

its characterized in that, electric core still includes:

the reinforcing piece comprises a main body part positioned in the folding and sealing part and a connecting part extending out of the main body part, and the connecting part is used for connecting an external structure.

2. The electrical core of claim 1, wherein the connecting portion is provided with a mounting hole for mating with the external structure.

3. The electrical core of claim 1, wherein the connection portion is a hook structure connected to the external structure.

4. The electrical core of claim 3, wherein the hook structure is T-shaped, U-shaped, or L-shaped.

5. The cell of claim 1, wherein the reinforcing member is a sheet structure or a strip structure.

6. The electrical core of claim 1, wherein the reinforcement is made from one of a plastic material, a metal material, and a carbon fiber composite material.

7. The cell of claim 6, wherein an insulating member is further disposed between the reinforcing member and the folded portion.

8. The battery cell of claim 1, wherein the battery cell includes a tab, the tab is disposed on the battery cell body, the battery cell body includes a first surface and a second surface, the tab is located between the first surface and the second surface, the first surface and the second surface are perpendicular to an extending direction of the tab, the first surface and the second surface are respectively provided with the folding seal portions, and each folding seal portion is internally provided with the reinforcing member.

9. A battery comprising the cell of any one of claims 1 to 8.

10. An electronic device, comprising a battery compartment and an electric core accommodated in the battery compartment, wherein the electric core is the electric core of any one of claims 1 to 8, and an installation part matched with the connection part is arranged in the battery compartment.