Primary alkaline battery positire electrode material beta-NiOOH and its preparation technology

A technology of positive electrode material and preparation process, applied in the direction of alkaline battery electrode, electrode manufacturing, battery electrode, etc., can solve the problems that have not been seen yet, and achieve the effects of reducing self-discharge, improving stability, and increasing positive electrode discharge capacity

Inactive Publication Date: 2003-12-17
陈韶峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is reported that foreign research and development of new materials β-NiOOH instead of MnO 2 It has just started as a cathode material; domestic research on this new type of material is still in the preliminary research stage, and no further data reports on this aspect have been seen.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: will not contain Co, Zn spherical Ni(OH) 2 5Kg into 40L 1MNa(OH) 2 In the solution reactor, the temperature of the solution is controlled at 60°C, and 40Kg of strong oxidizing agent is added. When the pH value of the reaction solution drops to 13, 10M NaOH solution is gradually added to control the pH value of the reaction solution to 13-14, and the reaction is carried out for 24 hours. After aging, washing, drying, and sieving, the product is numbered 1#.

Embodiment 2

[0019] Embodiment 2: Containing Co 4.0%, Zn 4.0% spherical Ni(OH) 2 5Kg put into 40L 1M Ni(OH) 2 In the solution reactor, the temperature of the solution is controlled at 60°C, and 40Kg of strong oxidizing agent is added. When the pH value of the reaction solution drops to 13, 10M NaOH solution is gradually added to control the pH value of the reaction solution to 13-14, and the reaction is carried out for 24 hours. After aging, washing, drying and sieving, the product is number 2#.

Embodiment 3

[0020] Embodiment 3: Containing Co 1.5%, Zn 4.0% spherical Ni(OH) 2 5Kg was put into 40L 1M Na(OH) 2 In the solution reactor, the temperature of the solution is controlled at 60°C, and 40Kg of strong oxidizing agent is added. When the pH value of the reaction solution drops to 13, 10M NaOH solution is gradually added to control the pH value of the reaction solution to 13-14, and the reaction is carried out for 24 hours. After aging, washing, drying, and sieving, the product is numbered 3#.

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Abstract

A positive electrode material beta-NiOOH for primary alkaline battery features that the spherical beta-NiOOH material contains Co (1-5%) and Zn (0-6%), and is prepared from spherical Ni(OH)2 and water through adding (5-10)-M NaOH solution for oxidizing at 30-70 deg.C for 8-24 hr. Its advantages are high working voltage and high high-voltage discharge capacity.

Description

Technical field [0001] The invention relates to the field of battery cathode materials and chemical engineering. Background technique [0002] In recent years, with the further development and expansion of battery application fields, higher requirements have been put forward for primary alkaline Zn-Mn batteries, especially the requirements for the discharge voltage and discharge capacity of the battery. However, Zn-Mn batteries have low operating voltage and poor discharge capacity above 1.1 volts, which can no longer meet the wider market demand. Therefore, a new cathode material is needed to replace it. It is reported that foreign research and development of new materials β-NiOOH instead of MnO 2 It has just started as a positive electrode material; domestic research on this new type of material is still in the preliminary research stage, and no further data reports on this aspect have been seen. Contents of the invention [0003] The purpose of the present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01D1/04H01M4/32H01M4/525H01M6/04
CPCY02E60/124H01M4/32H01M6/04Y02E60/10
Inventor 徐庆周汉章何金华陈韶峰刘明军
Owner 陈韶峰
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