CN210224080U

CN210224080U - Positive pole shell point net structure

Info

Publication number: CN210224080U
Application number: CN201921225657.2U
Authority: CN
Inventors: Jianfeng Xu; 徐剑锋
Original assignee: Changzhou Yufeng Battery Co Ltd
Current assignee: Changzhou Yufeng Battery Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-03-31
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses an anodal shell point network structure, including the anodal shell body, the inner wall fixedly connected with stainless steel mesh of anodal shell body, the inner wall of anodal shell body is pegged graft and is had positive plate, and the surface of positive plate is pegged graft with stainless steel mesh's upper surface. This positive pole shell point network structure, inner wall fixedly connected with stainless steel mesh through setting up the positive pole shell body, in the battery discharge process, the stainless steel mesh piece is as the electrically conductive media between positive plate and the positive pole shell, good electric conductivity between positive plate and the positive pole shell has been guaranteed, thereby the characteristics that the battery internal resistance has been reduced, surface and the inner wall of positive pole shell body through setting up the stainless steel mesh are spot welding fixed connection, two spot welding points use the axle center of stainless steel mesh to be the symmetric distribution as the center, compare with the positive pole shell structure of coating carbon base conductive adhesive, thereby greatly reduced the production degree of difficulty and cost, and obtained higher load capacity's characteristics.

Description

Positive pole shell point net structure

Technical Field

The utility model relates to a button cell technical field, more specifically say, it relates to an anodal shell point net structure.

Background

At present, a positive shell of a button cell usually adopts stainless steel or a nickel-plated steel strip, the surface is smooth, the contact with a positive plate is unstable, and the load capacity of the cell is poor. In the existing battery anode structure, part of an anode shell is not processed, the anode shell is directly used for battery assembly after being formed, and an anode plate is in direct contact with the anode shell, so that the contact conductivity is unstable; and in addition, a part of the positive electrode shell is formed by adhering conductive adhesive inside the positive electrode shell, but the process is complex, the cost is high, and the battery load capacity is poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an anodal shell point network structure, it has the characteristics that have reduced the production degree of difficulty and cost and improved the contact stability between positive plate and the anodal casing.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an anodal shell point web frame, includes anodal shell body, the inner wall fixedly connected with stainless steel net of anodal shell body, and the inner wall of anodal shell body is pegged graft and is had positive plate, and the surface of positive plate is pegged graft with the upper surface of stainless steel net.

Further, the stainless steel net has a diameter of 8mm and a thickness of 0.1 mm.

Furthermore, the inner wall of the positive shell body is fixedly provided with a functional groove, and the axis of the stainless steel mesh is pressed with a salient point.

Furthermore, the functional groove is positioned at the axis of the inner wall of the positive shell, and the salient point is positioned at the axis of the surface of the stainless steel net.

Furthermore, the inner wall of the functional groove and the surface of the salient point are both in arc shapes, and the surface of the salient point is matched with the inner wall of the functional groove;

through the technical scheme, the welding device has the characteristics of quick positioning and auxiliary welding when the stainless steel mesh and the inner wall of the positive shell body are subjected to spot welding.

Furthermore, the surface of the stainless steel mesh is fixedly connected with the inner wall of the positive shell body by spot welding, and the two spot welding points are symmetrically distributed by taking the axis of the stainless steel mesh as the center;

through above-mentioned technical scheme, through two welding point spot welding on stainless steel mesh surface and positive pole shell body inner wall, have the stable characteristics of assurance stainless steel mesh and this body coupling of positive pole shell.

To sum up, the utility model discloses following beneficial effect has:

1. through the inner wall fixedly connected with stainless steel net that sets up the positive plate body to have the contact stability between very big improvement positive plate and the positive pole casing, guarantee in the battery production process, the characteristics of the uniformity of performance.

2. Through the stainless steel mesh fixedly connected with of the inner wall that sets up the positive pole shell body, at the battery discharge in-process, the stainless steel mesh piece has guaranteed good conducting capacity between positive plate and the positive pole casing as the electrically conductive media between positive plate and the positive pole casing to have the characteristics that have reduced the internal resistance of battery.

3. The surface through setting up the stainless steel net is spot welding fixed connection with the inner wall of positive shell body, and two spot welding points use the axle center of stainless steel net to be the symmetric distribution as the center, compare with the positive shell structure of coating carbon back conducting resin to have greatly reduced the production degree of difficulty and cost, and obtained higher load capacity's characteristics.

4. The inner wall through setting up the positive shell body is fixed and has been seted up the function groove, and the axle center department suppression of stainless steel net has the bump, in process of production, through function groove and bump cooperation, can carry out quick location and supplementary welding when spot welding stainless steel net and positive shell body to have the characteristics that further reduce the production degree of difficulty.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of the structure of the positive electrode can body of the present invention;

FIG. 3 is an enlarged view of the structure A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the structure B in FIG. 2 according to the present invention;

fig. 5 is a perspective view of the stainless steel mesh structure of the present invention.

In the figure: 1. a positive electrode case body; 2. a stainless steel mesh; 3. a positive plate; 4. a functional groove; 5. and (4) bumps.

Detailed Description

Example (b):

the present invention will be described in further detail with reference to fig. 1 to 5.

A positive shell point mesh structure is shown in figures 1, 2 and 4 and comprises a positive shell body 1, wherein a stainless steel mesh 2 is fixedly connected to the inner wall of the positive shell body 1, the diameter of the stainless steel mesh 2 is 8mm, the thickness of the stainless steel mesh 2 is 0.1mm, the surface of the stainless steel mesh 2 is fixedly connected with the inner wall of the positive shell body 1 in a spot welding manner, two spot welding points are symmetrically distributed by taking the axis of the stainless steel mesh 2 as the center, a positive plate 3 is inserted into the inner wall of the positive shell body 1, and the surface of the positive plate 3 is inserted into the upper surface of the stainless steel mesh 2;

the stainless steel net 2 is fixedly connected with the inner wall of the positive shell body 1, and in the discharging process of the battery, the stainless steel net 2 is used as a conductive medium between the positive plate 3 and the positive shell, so that the good conductive capacity between the positive plate 3 and the positive shell is ensured, and the characteristic of reducing the internal resistance of the battery is achieved;

as shown in fig. 2-5, a functional groove 4 is fixedly formed on the inner wall of the positive casing body 1, a convex point 5 is pressed at the axis of the stainless steel mesh 2, the functional groove 4 is located at the axis of the inner wall of the positive casing, the convex point 5 is located at the axis of the surface of the stainless steel mesh 2, the inner wall of the functional groove 4 and the surface of the convex point 5 are both arc-shaped, and the surface of the convex point 5 is matched with the inner wall of the functional groove 4;

the functional groove 4 is fixedly formed in the inner wall of the positive shell body 1, the salient point 5 is pressed at the axis of the stainless steel mesh 2, and in the production process, the functional groove 4 is matched with the salient point 5, so that the stainless steel mesh 2 and the positive shell body 1 can be quickly positioned and welded in an auxiliary mode during spot welding, and the production difficulty is further reduced;

the stainless steel net 2 is fixedly connected with the inner wall of the positive electrode shell body 1, so that the contact stability between the positive electrode plate 3 and the positive electrode shell is greatly improved, and the consistency of performance in the production process of the battery is ensured;

through the surface that sets up stainless steel mesh 2 and the inner wall of positive shell body 1 for spot welding fixed connection, two spot welding points use the axle center of stainless steel mesh 2 to be the symmetric distribution as the center, compare with the positive shell structure of coating carbon back conducting resin to have greatly reduced the production degree of difficulty and cost, and obtained higher load capacity's characteristics.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides an anodal shell point web frame, includes anodal shell body (1), its characterized in that: the inner wall of positive pole shell body (1) fixedly connected with stainless steel net (2), the inner wall of positive pole shell body (1) is pegged graft and is had positive plate (3), the surface of positive plate (3) with the upper surface grafting of stainless steel net (2).

2. The positive electrode shell dot mesh structure according to claim 1, wherein: the diameter of the stainless steel net (2) is 8mm, and the thickness of the stainless steel net (2) is 0.1 mm.

3. The positive electrode shell dot-mesh structure according to claim 2, wherein: the inner wall of the positive shell body (1) is fixedly provided with a functional groove (4), and the axis of the stainless steel net (2) is pressed with a salient point (5).

4. A positive electrode sheath dot mesh structure according to claim 3, wherein: the functional groove (4) is positioned at the axis of the inner wall of the positive electrode shell, and the salient point (5) is positioned at the axis of the surface of the stainless steel net (2).

5. The positive electrode shell dot mesh structure according to claim 4, wherein: the inner wall of the functional groove (4) and the surface of the salient point (5) are both in arc shapes, and the surface of the salient point (5) is matched with the inner wall of the functional groove (4).

6. The positive electrode shell dot mesh structure according to claim 1, wherein: the surface of the stainless steel net (2) is fixedly connected with the inner wall of the positive shell body (1) through spot welding, and the two spot welding points are symmetrically distributed by taking the axis of the stainless steel net (2) as the center.