Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Zinc air button cell and preparation method thereof

A button battery and zinc-air technology, which is applied in fuel cells, battery electrodes, battery covers/end covers, etc., can solve the problems of easy oxidation and discoloration of the negative electrode cover, low battery discharge capacity, etc., and increase the amount of negative electrode materials and improve Discharge capacity, effect of suppressing hydrogen generation

Active Publication Date: 2019-10-11
东莞胜力电池实业有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a zinc-air button battery, which can effectively solve the problems in the prior art of battery deformation and leakage caused by sealing ring rupture, low battery discharge capacity, and easy oxidation and discoloration of the negative electrode cover; and provide The preparation method of the zinc-air button battery is simple and convenient, and the prepared zinc-air button battery can effectively avoid the chemical reaction caused by the contact between the zinc powder and the material of the negative cover cutout

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
  • Zinc air button cell and preparation method thereof
  • Zinc air button cell and preparation method thereof
  • Zinc air button cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preparation method of above-mentioned zinc-air button battery comprises the following steps:

[0035] S1. Preparation of positive electrode powder for catalytic layer: Weigh 30 parts of activated carbon, 15 parts of carbon black, 35 parts of activated manganese dioxide, and 23 parts of polytetrafluoroethylene, and add them to the stirring container in sequence. Stir evenly under the condition of 60% RH to obtain the catalyst layer cathode powder;

[0036] S2. Preparation of the positive electrode plate: the polytetrafluoroethylene gas permeable membrane, the positive electrode powder of the catalytic layer, the conductive nickel mesh, and the diaphragm paper are stacked on a rolling machine and rolled to obtain the positive electrode plate;

[0037] S3. the preparation of negative electrode material, comprises:

[0038] S3a. Preparation of negative electrode zinc powder: Weigh 160 parts of zinc powder, 3 parts of polyacrylic acid, and 1 part of sodium polyacrylate,...

Embodiment 2

[0053] The preparation method of above-mentioned zinc-air button battery comprises the following steps:

[0054] S1. Preparation of positive electrode powder for catalytic layer: Weigh 30 parts of activated carbon, 13 parts of graphite, 35 parts of activated manganese dioxide, and 23 parts of polytetrafluoroethylene, and add them to a stirring container in sequence. Stir evenly under the condition of 60% RH to obtain the catalyst layer cathode powder;

[0055] S2. Preparation of the positive electrode plate: the polytetrafluoroethylene gas permeable membrane, the positive electrode powder of the catalytic layer, the conductive nickel mesh, and the diaphragm paper are stacked on a rolling machine and rolled to obtain the positive electrode plate;

[0056] S3. the preparation of negative electrode material, comprises:

[0057] S3a. Preparation of negative electrode zinc powder: Weigh 160 parts of zinc powder, 3 parts of carboxymethyl cellulose, and 1 part of sodium polyacrylate...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a zinc air button cell. The zinc air button cell comprises a sealing sticker, a positive electrode shell, diffusion paper, a positive electrode plate, a sealing ring, a negative electrode cover and a negative electrode material, wherein a first sealant is arranged between the positive electrode shell and the positive electrode plate; the positive electrode plate has a stacked structure, and comprises a polytetrafluoroethylene breathable film, catalytic layer positive electrode powder, a conductive nickel screen and diaphragm paper; the reserve side of the negative electrode cover is removed, and the lower end notch is subjected to planar treatment; the bottom of the sealing ring has a U-shaped structure; the notch of the negative electrode cover is placed in the U-shaped structure through a second sealant; and the negative electrode cover comprises a nickel layer, a stainless steel layer, a copper layer, and one of a tin layer or a tin alloy layer or an indiumlayer or an indium alloy layer. Through adoption of the zinc air button cell provided in the technical scheme, the problems of cell leakage, low discharging capacity of the cell and easiness in oxidization and discoloration of the negative electrode cover are solved effectively. Moreover, a preparation method of the zinc air button cell is simple and convenient. The prepared zin air button cell can effectively avoid the chemical reaction due to contact between zinc power and a notch material of the negative electrode cover.

Description

technical field [0001] The invention relates to the technical field of button batteries, in particular to a zinc-air button battery and a preparation method thereof. Background technique [0002] The structure of a general zinc-air button battery includes a sealing sticker, a positive electrode case (with air holes), a diffusion paper, a positive electrode plate, a sealing ring, a negative electrode cover, and a negative electrode material from the outside to the inside. As a clean energy source, it has a high specificity Energy, low cost, no pollution and other advantages. But the current zinc-air button battery has the following problems: [0003] (1) The positive electrode is in the positive electrode shell, which is sealed by mechanical pressure to form a sealed structure to prevent the internal substances of the battery from seeping out from the air holes at the bottom. This structure will cause liquid leakage due to uneven sealing pressure or deformation of the batter...

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): H01M2/04H01M4/62H01M8/0276H01M12/06H01M12/08
CPCH01M8/0276H01M4/628H01M12/06H01M12/08H01M50/147H01M50/153Y02E60/10Y02E60/50
Inventor 朱广涛邓志谦
Owner 东莞胜力电池实业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com