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Button cell shell, button cell and assembling method

A button battery and assembly method technology, which is applied in the fields of battery pack parts, battery assembly machines, secondary battery manufacturing, etc., can solve the problems of poor appearance and unsightly appearance of button batteries, and achieve good welding and sealing effects, structural Simple, high pass rate effect

Pending Publication Date: 2022-02-18
SHENZHEN JULI ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, during the heat sealing process of the current button battery casing, the appearance of the button battery is not beautiful due to the overflow of glue in the injection molding layer, so it is necessary to improve the structure of the existing button battery casing to solve the problem of poor appearance

Method used

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  • Button cell shell, button cell and assembling method
  • Button cell shell, button cell and assembling method
  • Button cell shell, button cell and assembling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] This embodiment provides a button battery casing, the button battery casing is as figure 1 As shown, it includes two interlocking end caps, which are respectively denoted as a first end cap 1 and a second end cap 3 , and the side wall size of the first end cap 1 is larger than that of the second end cap 3 .

[0065]The inner peripheral surface of the side wall of the first end cover 1 is provided with a first injection molding layer 2, the outer peripheral surface of the side wall of the second end cover 3 is provided with a second injection molding layer 4, and the end surfaces of the first injection molding layer 2 and the second injection molding layer 4 Both are slopes; the end face of the first injection molding layer 2 is lower than the open end face of the first end cap 1 , and the end face of the second injection molding layer 4 is lower than the open end face of the second end cap 3 . After the first end cover 1 and the second end cover 3 are fastened together,...

Embodiment 2

[0069] This embodiment provides a button battery casing, the button battery casing is as figure 2 As shown, it includes two interlocking end caps, which are respectively denoted as a first end cap 1 and a second end cap 3 , and the side wall size of the first end cap 1 is larger than that of the second end cap 3 .

[0070] The inner peripheral surface of the side wall of the first end cover 1 is provided with a first injection molding layer 2, the outer peripheral surface of the side wall of the second end cover 3 is provided with a second injection molding layer 4, and the end surfaces of the first injection molding layer 2 and the second injection molding layer 4 Both are inclined planes; the end surface of the first injection molding layer 2 is lower than the open end surface of the first end cover 1, the end surface of the second injection molding layer 4 is higher than the open end surface of the second end cover 3, and the side wall of the second end cover 3 The open ed...

Embodiment 3

[0074] This embodiment provides a button battery casing, the button battery casing is as image 3 As shown, it includes two interlocking end caps, which are respectively denoted as a first end cap 1 and a second end cap 3 , and the side wall size of the first end cap 1 is larger than that of the second end cap 3 .

[0075] The inner peripheral surface of the side wall of the first end cover 1 is provided with the first injection molding layer 2, the inner peripheral surface of the side wall of the second end cover 3 is provided with the second injection molding layer 4, the first injection molding layer 2 and the second injection molding layer 4 The end surfaces are all inclined surfaces; the end surface of the first injection molding layer 2 is lower than the open end surface of the first end cover 1 , and the end surface of the second injection molding layer 4 is higher than the open end surface of the second end cover 3 . After the first end cover 1 and the second end cover...

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Abstract

The invention provides a button cell shell, a button cell and an assembling method, the button cell shell comprises two end covers which are buckled with each other and are respectively marked as a first end cover and a second end cover, the side wall of the first end cover is provided with a first injection molding layer, the side wall of the second end cover is provided with a second injection molding layer, the end face of the first injection molding layer is in contact with the end face of the second injection molding layer to form a seam, the seam is located in the side wall of one of the end covers, the seam is heated outside the end covers so that the two end covers can be fixedly sealed, and a containing cavity used for containing a battery cell is formed; and an annular notch is formed in the outer edge of the end of the second injection molding layer and / or the first injection molding layer, and an annular cavity is defined by the annular notch and the side wall of the end cover and used for containing heated and melted overflowing glue. By means of the two structural designs, high sealing performance can be kept, and it can be guaranteed that the appearance is complete and flawless.

Description

technical field [0001] The invention belongs to the technical field of button batteries, and relates to a button battery casing, a button battery and an assembly method. Background technique [0002] A button battery refers to a battery that looks like a button in size, generally speaking, it has a larger diameter and a thinner thickness. Button batteries are divided into chemical batteries and physical batteries. Among them, chemical batteries are the most commonly used, mainly composed of anodes, cathodes and their electrolytes. Because of its small size, button batteries are widely used in various miniature electronic products, such as: computer motherboards, electronic watches, electronic dictionaries, electronic scales, remote controls, electric toys, cardiac pacemakers, electronic hearing aids, Counters and cameras etc. In order to ensure the performance of products incorporating the coin cell, the performance of the coin cell has also received increasing attention. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M50/102H01M50/148
CPCH01M50/102H01M50/148H01M10/0404Y02E60/10Y02P70/50
Inventor 徐洲
Owner SHENZHEN JULI ENERGY CO LTD