Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Button cell

A button battery and buckle technology, which is applied in the field of battery production, can solve the problems of easy relative displacement and liquid leakage, etc., and achieve the effects of improving overall stability, prolonging service life, and preventing liquid leakage

Inactive Publication Date: 2017-05-17
方定元
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, propose a button battery, and solve the technical problem that the positive electrode, the current collector, and the positive electrode cover of the button battery in the prior art are prone to relative displacement and liquid leakage.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Button cell
  • Button cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] Embodiments of the present invention provide a button battery, such as figure 1 , figure 2 As shown, it includes a negative electrode cover 1 and a positive electrode cover 2 that are buckled up and down. The buckle parts of the negative electrode cover 1 and the positive electrode cover 2 are provided with a sealing rubber ring 3, so that a seal is formed between the negative electrode cover 1 and the positive electrode cover 2. The sealed space is provided with a negative electrode 4, a separator 5, a positive electrode 6, and a current collector 7 sequentially from top to bottom. There ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a button cell, and belongs to the field of cell preparation. The button cell comprises a negative electrode cover and a positive electrode cover, wherein a sealing rubber ring is arranged at a buckle part of the negative electrode cover and the positive electrode cover so that a sealed space is formed between the negative electrode cover and the positive electrode cover, a negative electrode, a separator, a positive electrode and a current collector are arranged in the sealed space, an annular sealing cavity is arranged between a side wall of the positive electrode and an inner wall of the positive electrode cover, the sealing cavity is filled with an electrolyte, the button cell also comprises a support cover, the support cover comprises a main body, an annular cladding body and an annular support body, the main body is arranged between the current collector and the positive electrode cover, the annular cladding body is formed by axially and upwards extending an outer edge of the main body, the annular support body is formed by outwards extending an upper edge of the cladding body along a radial direction, and an outer edge of the support body props against the inner wall of the positive electrode cover. By arranging the support cover, the positive electrode, the current collector and the positive electrode cover can be effectively prevented from move relative to one another, the integral stability of the button cell is improved, the application quality of the button cell is ensured, liquid leakage is effectively prevented, and the service lifetime of the button cell is prolonged.

Description

technical field [0001] The invention relates to the field of battery production, in particular to a button battery. Background technique [0002] Because of its lightness and compactness, button batteries have been widely used in various miniature electronic products. Generally, the diameter ranges from 4.8mm to 30mm, and the thickness ranges from 1.0mm to 7.7mm. It is mainly used as a backup for various electronic products. Power supplies, such as computer motherboards, electronic watches, electronic dictionaries, electronic scales, memory cards, remote controls, electric toys, pacemakers, electronic hearing aids, counters, cameras, etc. With the acceleration of the development of electronic products, the requirements for button batteries are also increasing. [0003] Existing button batteries generally leave a space for filling the electrolyte between the positive electrode and the positive electrode cover. On the one hand, the relative displacement between the positive e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01M6/12
CPCH01M6/12
Inventor 方定元
Owner 方定元
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products