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A kind of mercury-free silver oxide button battery and its preparation method

A silver button type, mercury oxidation technology, applied in the field of batteries, can solve the problems of low battery performance, short storage time, liquid leakage, etc., and achieve the effects of long storage time, reasonable formula and stable discharge curve.

Active Publication Date: 2018-11-02
东莞市天球实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the mercury-free silver oxide button battery of the prior art easily causes liquid leakage, and the battery performance is not high and the storage time is short

Method used

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  • A kind of mercury-free silver oxide button battery and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Prepare raw materials according to the formula in Table 1, prepare zinc paste:

[0072] 1) Preparation of electrolyte, adding potassium hydroxide and zinc oxide into the water of the mass parts, and obtaining the electrolyte after completely dissolving;

[0073] 2) Put the lead-free and mercury-free zinc powder, polyacrylic acid, polyacrylate, indium hydroxide and indium oxide into the stirring tank of the zinc mixing machine in parts by mass, stir and mix the zinc powder mixture evenly, and then electrolyze the The liquid is slowly added into the stirring tank, stirred evenly, and after vacuuming, a mercury-free silver oxide button battery zinc paste is obtained.

[0074] 3) Assemble the negative electrode zinc paste, sealing ring, diaphragm, positive electrode material and positive electrode shell in sequence on the negative electrode cover to form a button battery, and make a silver oxide button battery, SR series.

[0075] The material used for the negative electro...

Embodiment 2

[0078] Referring to the method of Example 1, a zinc paste and a button battery were prepared, wherein the viscosity-average molecular weight of the polyacrylic acid was 2500, and the viscosity-average molecular weight of the polyacrylate was 2500.

Embodiment 3

[0080]Referring to the method of Example 1, a zinc paste and a button battery were prepared, wherein the viscosity-average molecular weight of the polyacrylic acid was 2000, and the viscosity-average molecular weight of the polyacrylate was 2500.

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Abstract

Provided are a mercury-free silver oxide button cell and a preparation method thereof. A preparation method of zinc gel of the cell comprises the steps that 1, an electrolyte is prepared, wherein potassium hydroxide and zinc oxide are added into water by mass, and the electrolyte is obtained after potassium hydroxide and zinc oxide are completely dissolved; 2, lead-free mercury-free zinc powder, polyacrylic acid, polyacrylate, indium hydroxide and indium oxide are put into a stirring tank of a zinc mixer by mass and stirred and mixed to be uniform, the zinc powder mixture is obtained, the electrolyte is added into the stirring tank slowly, the materials are stirred to be uniform, vacuumizing is conducted, and the zinc gel of the mercury-free silver oxide button cell is obtained. Compared with the prior art, the zinc gel of the mercury-free silver oxide button cell is formed by mixing and vacuum stirring the zinc powder mixture and the electrolyte, the formula of the raw materials is reasonable, the expansion rate of the obtained zinc gel is small, and the storing time of the prepared mercury-free silver oxide button cell is long.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a mercury-free silver oxide button battery and a preparation method thereof. Background technique [0002] Button batteries are widely used in various miniature electronic products due to their small size, with diameters ranging from 4.8mm to 30mm and thicknesses ranging from 1.0mm to 7.7mm; they are generally used as backup power for various electronic products, such as Computer motherboards, electronic watches, electronic dictionaries, electronic scales, remote controls, electric toys, pacemakers, electronic hearing aids, counters, cameras, etc.; [0003] Button batteries are also divided into two categories: chemical batteries and physical batteries, and chemical batteries are the most commonly used. They consist of an anode (positive pole), a cathode (negative pole) and their electrolyte. Its appearance is made of stainless steel, and it is used as the positive pole, and its negati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/38H01M4/48H01M4/62H01M6/00H01M6/12
CPCH01M4/364H01M4/38H01M4/48H01M4/624H01M6/005H01M6/12
Inventor 黄理博
Owner 东莞市天球实业有限公司
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