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Method for preparing cell zinc paste

A zinc paste and zinc-manganese battery technology, which is applied in the field of battery material preparation, can solve problems such as environmental impact, and achieve the effects of prolonging service life and improving discharge capacity

Active Publication Date: 2012-12-19
蚌埠中知知识产权运营有限公司
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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

[0026] Preparation of Zinc Alloy Particles

[0027] Prepare the raw material of zinc alloy by following mass fraction:

[0028] Aluminum 20ppm

[0029] Bismuth 20ppm

[0030] Lanthanum, yttrium, cerium rare earth elements 200ppm

[0031] The rest is zinc.

[0032] Wherein, the mass ratio of lanthanum:yttrium:cerium is 2:2:1.

[0033] Put the rare earth metals lanthanum, yttrium, cerium, aluminum, and bismuth in the form of tiny debris into the pressure melter, heat them to a molten state, press them into the above-mentioned mass parts of zinc liquid to directly produce zinc alloys, and form after crushing Zinc alloy particles.

[0034] Prepare the Zinc Dust Mixture:

[0035] The prepared zinc alloy particles are mixed with polyacrylic acid, polyacrylate, polyacrylic acid sodium powder and indium oxide powder in the following mass ratio:

[0036] Zinc alloy particles 80

[0037] Polyacrylic acid 0.5

[0038] Polyacrylate 1

[0039] Sodium polyacrylate powder 0.2

[0...

Embodiment 2

[0050] Preparation of Zinc Alloy Particles

[0051] Prepare the raw material of zinc alloy by following mass fraction:

[0052] Aluminum 30ppm

[0053] Bismuth 70ppm

[0054] Lanthanum, yttrium, cerium rare earth elements 300ppm

[0055] The rest is zinc.

[0056] Wherein, the mass ratio of lanthanum:yttrium:cerium is 2:2:1.

[0057] Put the rare earth metals lanthanum, yttrium, cerium, aluminum, and bismuth in the form of tiny debris into the pressure melter, heat them to a molten state, press them into the above-mentioned mass parts of zinc liquid to directly produce zinc alloys, and form after crushing Zinc alloy particles.

[0058] Prepare the Zinc Dust Mixture

[0059] The prepared zinc alloy particles are mixed with polyacrylic acid, polyacrylate, polyacrylic acid sodium powder and indium oxide powder in the following mass ratio:

[0060] Zinc Alloy Granules 90

[0061] polyacrylic acid 1

[0062] Polyacrylate 2

[0063] Sodium polyacrylate powder 0.5

[0064]...

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Abstract

The invention discloses a method for preparing a sealing material of a lead-acid battery, and relates to a method for preparing a zinc paste of an alkaline zinc-manganese battery. The zinc powder mixture used in the method comprises lead-free mercury-free zinc alloy particles, polyacrylic acid, polyacrylate, sodium polyacrylate powder and indium oxide powder, wherein the lead-free mercury-free zinc alloy particles comprise the following elements: aluminum, bismuth, lanthanum, yttrium, cerium rare earth element and zinc. By tests of the battery manufacturers, compared with other zinc paste materials in the markets, the discharging capability of the zinc paste used for the alkaline zinc-manganese battery is greatly increased, and the usage life can be effectively prolonged, and the method enables environmental protection due to no lead and no mercury.

Description

technical field [0001] The invention relates to a method for preparing battery materials, in particular to a method for preparing battery zinc paste. 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 the batteries are discarded. Therefore, there is an urgent need to provide a zinc paste for a lead-free and mercury-free alkali...

Claims

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Application Information

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IPC IPC(8): H01M4/08H01M4/42
CPCY02E60/12
Inventor 姜波
Owner 蚌埠中知知识产权运营有限公司
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