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Preparation method for zinc gel of alkaline zinc-manganese dioxide battery

A zinc-manganese battery and zinc paste technology, which is applied to the electrodes of primary batteries, battery electrodes, circuits, etc., can solve problems such as environmental impact, and achieve the effects of prolonging service life and improving discharge capacity

Inactive Publication Date: 2014-04-02
高建军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, many of the zinc pastes of the current alkaline zinc-manganese batteries contain mercury and lead, which makes the batteries have a bad impact on the environment after they are discarded.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Preparation of Zinc Alloy Particles

[0015] Put tiny scraps of aluminum, bismuth and rare earth metals into the pressure fuser, heat them to a molten state, press them into the zinc liquid to directly produce zinc alloys, and make zinc alloy particles after crushing. The zinc alloy particles made are lead-free and mercury-free. In this embodiment, the raw materials of the zinc alloy are prepared according to the following mass fractions, the mass fraction of aluminum is 20 ppm, the mass fraction of bismuth is 20 ppm, the mass fraction of rare earth metal is 200 ppm, and the rest is zinc liquid. The rare earth metal is composed of lanthanum, yttrium and cerium, and the mass ratio of lanthanum:yttrium:cerium is 2:2:1.

[0016] Prepare the Zinc Dust Mixture

[0017] The prepared zinc alloy particles are mixed with polyacrylic acid, polyacrylate, polyacrylate and indium oxide powder, and ground into a zinc powder mixture with a particle size of 50 microns. In this embod...

Embodiment 2

[0021] Preparation of Zinc Alloy Particles

[0022] Put tiny scraps of aluminum, bismuth and rare earth metals into the pressure fuser, heat them to a molten state, press them into the zinc liquid to directly produce zinc alloys, and make zinc alloy particles after crushing. The zinc alloy particles made are lead-free and mercury-free. In this embodiment, the raw materials of the zinc alloy are prepared according to the following mass fractions, the mass fraction of aluminum is 30 ppm, the mass fraction of bismuth is 70 ppm, the mass fraction of rare earth metal is 300 ppm, and the rest is zinc liquid. The rare earth metal is composed of lanthanum, yttrium and cerium, and the mass ratio of lanthanum:yttrium:cerium is 2:2:1.

[0023] Prepare the Zinc Dust Mixture

[0024] The prepared zinc alloy particles were mixed with methacrylic acid, methacrylate, methacrylate and indium oxide powder, and then ground into a zinc powder mixture with a particle size of 100 microns. In thi...

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Abstract

The invention discloses a preparation method for zinc gel of an alkaline zinc-manganese dioxide battery. The preparation method comprises the following steps: (1) putting aluminum, bismuth and rare earth metals into a pressure fuse, heating to be molten, pressing galvanizing zinc to produce a zinc alloy, and crushing to produce zinc alloy particles; (2) mixing the zinc alloy particles with polyacrylic acid, or methacrylic acid, polyacrylic ester or methyl propiolate, polyacrylate or methyacrylate, and indium oxide powder, and grinding into a zinc powder mixture with particle size of 50-100 micrometers; (3) putting the zinc powder mixture and electrolyte prepared in advance into a hybrid reactor according to the volume ratio of 1:1, heating to 50-70 DEG C, agitating and mixing for 30-60 minutes at the agitation speed of 1000 revolutions / minute-2000 revolutions / minute, thus preparing zinc gel. According to the zinc gel of the alkaline zinc-manganese dioxide battery, prepared by adopting the preparation method, the discharge capability is greatly improved, the service life is effectively prolonged, and the zinc gel of the alkaline zinc-manganese dioxide battery is lead-free and mercury-free, thus being more environment-friendly.

Description

technical field [0001] The invention relates to the field of preparation of alkaline zinc-manganese batteries, in particular to a method for preparing zinc paste for alkaline zinc-manganese batteries with strong discharge capacity, long service life, lead-free and mercury-free. Background technique [0002] Alkaline zinc-manganese batteries are by far the most widely used civilian battery products. With the popularization of digital technology, the functions of small electrical appliances are increasing day by day, and the requirements for high-power discharge of alkaline batteries are getting higher and higher. Zinc paste is an important component material for the preparation of alkaline zinc-manganese batteries, and its performance plays a key role in the discharge capacity and service life of alkaline batteries. In addition, many of the zinc pastes of current alkaline zinc-manganese batteries contain mercury and lead, which causes adverse effects on the environment after...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/04H01M4/42H01M4/08
Inventor 高建军
Owner 高建军
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