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Anode of nickel-metal hydride battery

A nickel-metal hydride battery and positive electrode technology, applied in the direction of battery electrodes, alkaline storage battery electrodes, electrode carriers/collectors, etc., can solve problems such as low life, low battery capacity, and large self-discharge, and reduce production costs and costs Effect

Inactive Publication Date: 2008-03-26
邹平铭波电源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the rapid rise in the price of nickel, the main raw material of the positive electrode, the production cost of the battery has increased sharply. In order to reduce the cost, the nickel electrode can no longer be used.
The current substitute electrodes include: double-sided burr steel strip, cable-drawn mesh steel strip, flat punched steel strip, etc. However, the current substitute technology has the following shortcomings: the battery capacity is low, the life is low, and the self-discharge is too large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The technological process that realizes the object of the present invention is:

[0016] Combining powder→pulping→pulling sheet→finishing→winding→assembly→chemical formation→capacity inspection→life test.

[0017] A kind of Ni-MH battery positive pole, at first adding active substance to a certain amount of additives containing conductive short fibers and conductive graphite, the addition amount is respectively: Ni(OH) 2 86 parts by weight, CaCO 3 1 parts by weight, CoO13 parts by weight, additives 2 parts by weight.

[0018] Add the mixture of sec-butyl acetate (SBA) and styrene-butadiene rubber (SBR) after mixing the powder to make adhesive slurry, and the addition of sec-butyl acetate (SBA) and styrene-butadiene rubber (SBR) is 10 parts by weight respectively number.

[0019] Then the slurry is hung on the three-dimensional steel belt through continuous drawing, and after drying, it is rolled and pressed into pole pieces.

[0020] The battery prepared by the ab...

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PUM

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Abstract

This invention relates to a positive of a NiH cell taking steel ribbon as a matrix, which is taken to be the positive replacing foam Ni material so as to reduce production cost including the following steps: a positive of a NiH cell with a steel ribbon as its matrix, and the surface of the steel ribbon is coated with additive containing conducting short fiber and conductive graphite by a pulping technology.

Description

technical field [0001] The invention relates to the battery field, in particular to a positive electrode of a nickel-hydrogen battery. Background technique [0002] Due to the rapid increase in the price of nickel, the main raw material of the positive electrode, the production cost of the battery has increased sharply. In order to reduce the cost, the nickel electrode can no longer be used. The current substitute electrodes include: double-sided burr steel strip, cable-drawn mesh steel strip, flat punched steel strip, etc. However, the current substitute technology has the following shortcomings: the battery capacity is low, the life is low, and the self-discharge is too large . Contents of the invention [0003] In order to overcome the above deficiencies, the present invention proposes a steel strip as the matrix, as the positive electrode instead of the foamed nickel material, so as to greatly reduce the production cost. [0004] The technical scheme of the present i...

Claims

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Application Information

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IPC IPC(8): H01M4/24H01M4/62H01M4/52H01M4/26H01M10/44H01M4/64
CPCY02E60/124Y02E60/10
Inventor 李信
Owner 邹平铭波电源有限公司