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A kind of positive electrode material of high specific energy zinc-nickel battery and high specific energy zinc nickel battery

A zinc-nickel battery and cathode material technology, applied in nickel storage batteries, battery electrodes, batteries, etc., can solve the problems of battery consistency, difficulty in uniform dispersion, etc., to improve charging acceptance, reduce softening and shedding, and improve The effect of battery capacity

Active Publication Date: 2021-10-26
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In high specific energy zinc-nickel batteries, the positive active material generally contains more components, which makes it difficult to achieve absolute and sufficient uniform dispersion of the positive active material when preparing the slurry, which in turn leads to consistency problems in the battery

Method used

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  • A kind of positive electrode material of high specific energy zinc-nickel battery and high specific energy zinc nickel battery
  • A kind of positive electrode material of high specific energy zinc-nickel battery and high specific energy zinc nickel battery

Examples

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Effect test

Embodiment 1

[0033] A high specific energy zinc-nickel battery positive electrode material is composed of the following raw materials in weight percentage:

[0034] Primary slurry 99.8wt%, polytetrafluoroethylene emulsion 0.2wt%;

[0035] The primary slurry is composed of positive electrode dry powder, pure water, nickel powder and naphthalenesulfonic acid formaldehyde condensate in a weight ratio of 39.5:45:15:0.5;

[0036] The positive electrode dry powder is composed of the following raw materials in parts by weight, 97.4 parts of nickel hydroxide, 0.3 parts of antimony trioxide, 1 part of polyaniline, 0.8 parts of sodium perborate, and 0.5 parts of hydroxypropyl methylcellulose;

[0037] High specific energy zinc-nickel battery cathode material is prepared by the following steps:

[0038] a) Mix and stir nickel hydroxide, antimony trioxide, polyaniline, sodium perborate and hydroxypropyl methylcellulose in the positive electrode dry powder, and prepare the positive electrode dry powde...

Embodiment 2

[0043] A high specific energy zinc-nickel battery positive electrode material is composed of the following raw materials in weight percentage:

[0044] Primary slurry 98wt%, polytetrafluoroethylene emulsion 2wt%;

[0045] The primary slurry is composed of positive electrode dry powder, pure water, nickel powder and naphthalenesulfonic acid formaldehyde condensate in a weight ratio of 33:45:20:2;

[0046] The positive electrode dry powder is composed of the following raw materials in parts by weight, 92.5 parts of nickel hydroxide, 1 part of antimony trioxide, 2 parts of polyaniline, 4 parts of sodium perborate, and 0.5 part of hydroxypropyl methylcellulose;

[0047] High specific energy zinc-nickel battery cathode material is prepared by the following steps:

[0048] a) Mix and stir nickel hydroxide, antimony trioxide, polyaniline, sodium perborate and hydroxypropyl methylcellulose in the positive electrode dry powder, and prepare the positive electrode dry powder after stirr...

Embodiment 3

[0053] A high specific energy zinc-nickel battery positive electrode material is composed of the following raw materials in weight percentage:

[0054] Primary slurry 99wt%, polytetrafluoroethylene emulsion 1wt%;

[0055] The primary slurry is composed of positive electrode dry powder, pure water, nickel powder and naphthalenesulfonic acid formaldehyde condensate in a weight ratio of 40:43:10:2;

[0056] The positive electrode dry powder is composed of the following raw materials in parts by weight, 92 parts of nickel chloride, 1 part of antimony trioxide, 3 parts of polyaniline, 2.8 parts of sodium perborate, and 1.2 parts of hydroxypropyl methylcellulose;

[0057] High specific energy zinc-nickel battery cathode material is prepared by the following steps:

[0058] a) Mix and stir nickel chloride, antimony trioxide, polyaniline, sodium perborate and hydroxypropyl methylcellulose in the positive electrode dry powder, and prepare the positive electrode dry powder after stirri...

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Abstract

The invention belongs to the technical field of zinc-nickel batteries. The invention discloses a high specific energy zinc-nickel battery positive electrode material, which is composed of a primary slurry and a binder; the primary slurry is composed of a positive electrode dry powder, pure water, auxiliary active substances and a dispersant; the positive electrode dry powder is composed of a nickel-containing compound , nucleating agent, polyaniline, sodium perborate, thickener composition; The present invention also discloses a kind of high specific energy zinc-nickel battery, it comprises positive pole, negative pole and electrolytic solution, and positive pole is made of as above-mentioned high specific energy zinc nickel battery The positive electrode material is coated on the positive electrode substrate. The invention can solve the problem that the active material of the existing high specific energy zinc-nickel battery is not tightly bonded to the substrate, can reduce the softening and falling off of the active material of the positive electrode, improve the electrical conductivity, improve the charging acceptance capacity of the electrode, increase the battery capacity, cycle life and Charge-discharge conversion efficiency.

Description

technical field [0001] The invention relates to the technical field of zinc-nickel batteries, in particular to a high-specific-energy zinc-nickel battery cathode material and a high-specific-energy zinc-nickel battery. Background technique [0002] With the development and progress of science and technology, and the increase in the contribution of electric vehicles to vehicle drive, the demand for battery energy has increased significantly. In particular, full hybrid and plug-in hybrid vehicles have put forward stricter standards for battery energy. Lead-acid batteries exist A series of problems, such as low utilization rate of energy density and incomplete conversion of active materials leading to capacity fading, have become the biggest constraints to enter the electric vehicle market. [0003] The emerging high specific energy zinc-nickel battery has obvious advantages such as high working voltage, high energy density, no environmental pollution, high safety index, and lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/38H01M4/52H01M4/62H01M10/30
CPCH01M4/364H01M4/38H01M4/52H01M4/62H01M4/623H01M4/628H01M10/30H01M2220/20Y02E60/10
Inventor 柯娃吴亮朱军平马永泉刘孝伟
Owner CHAOWEI POWER CO LTD
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