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High-discharge-capacity alkaline manganese battery positive pole material and alkaline manganese battery

A discharge capacity and positive electrode material technology, applied in the field of positive electrode materials and alkaline manganese batteries, can solve the problems of poor current pulse performance of large batteries, poor capacity of positive electrode materials, etc., and achieve the effect of enhancing pulse discharge performance and avoiding collapse

Inactive Publication Date: 2017-05-31
ZHENGJIANG MUSTANG BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: in the prior art, the capacity of the cathode material of the alkaline manganese battery is poor, and the pulse performance of the large battery current is poor; thereby providing a kind of discharge capacity, the cathode material of the alkali manganese battery with good pulse performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A positive electrode material for an alkaline manganese battery with high discharge capacity, the positive electrode material includes manganese titanate, graphene, the median particle size of the graphene is 90 μm, and an additive, the additive is titanium dioxide, imidazole and ES fiber composition, the mass ratio of described titanium dioxide, imidazole and ES fiber is 7: 2: 1; Described graphene is flake scale graphene; The median diameter of described manganese titanate is 70 μ m; Under 6mA, from 2.0 The battery discharge capacity when V is continuously discharged to 1.0V is 125mAh; based on the total weight of the positive electrode material of the alkaline manganese battery, the manganese titanate accounts for 95wt%, the graphene accounts for 3wt%, and the additive accounts for 2wt%. .

Embodiment 2

[0022] A positive electrode material for an alkaline manganese battery with high discharge capacity, the positive electrode material includes manganese titanate, graphene, the median particle size of the graphene is 80 μm, and additives, the additives are titanium dioxide, imidazole and ES fiber composition, the mass ratio of described titanium dioxide, imidazole and ES fiber is 4: 2: 1; Described graphene is flake scale graphene; The median diameter of described manganese titanate is 60 μ m; Under 6mA, from 2.0 The battery discharge capacity when V is continuously discharged to 1.0V is 128mAh; based on the total weight of the positive electrode material of the alkaline manganese battery, the manganese titanate accounts for 84wt%, the graphene accounts for 14wt%, and the additive accounts for 2wt% .

Embodiment 3

[0024] A positive electrode material for an alkaline manganese battery with high discharge capacity, the positive electrode material includes manganese titanate, graphene, the median particle size of the graphene is 85 μm, and an additive, the additive is titanium dioxide, imidazole and Composed of ES fibers, the mass ratio of titanium dioxide, imidazole and ES fibers is 6:2:1; the graphene is flake scale graphene; the median particle size of the manganese titanate is 60-70 μm; The discharge capacity of the battery when continuously discharged from 2.0V to 1.0V is 122mAh; based on the total weight of the positive electrode material of the alkaline manganese battery, the manganese titanate accounts for 95wt%, the graphene accounts for 4wt%, and the additive accounts for 1 wt%.

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PUM

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Abstract

The invention relates to a high-discharge-capacity alkaline manganese battery positive pole material which comprises an additive, wherein the additive is composed of titanium dioxide, imidazole and ES fibers in a mass ratio of (4-7):2:1. The graphene of the positive pole material is flake graphene, and the median particle diameter of manganese titanate is 60-70 mu m. Under the condition of 6mA, the battery discharge capacity from 2.0V to 1.0V by continuous discharge exceeds 120mAh, thereby enhancing the unit volume capacity of the alkaline manganese battery and the pulse discharge capacity of the alkaline manganese battery.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a positive electrode material of an alkaline manganese battery with high discharge capacity and the alkaline manganese battery. Background technique [0002] Alkaline-manganese batteries refer to primary batteries that use zinc as the negative electrode, manganese titanate as the positive electrode, and potassium hydroxide solution as the electrolyte. Alkaline-manganese batteries are developed on the basis of zinc-manganese batteries; compared with zinc-manganese batteries, they do not contain elements such as mercury and cadmium, and are environmentally friendly and environmentally friendly. And the alkaline manganese battery also has the advantages of heavy load, high current discharge, large capacity, low temperature performance and leakage resistance, and high cost performance. Therefore, with the rapid development of portable electronic products, the demand fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/50H01M6/06
CPCH01M4/50H01M6/06
Inventor 余谷峰陈水标孙刚
Owner ZHENGJIANG MUSTANG BATTERY CO LTD