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研究论文

掺杂NiO的Ni(OH)_2电化学性能研究

  • 陈飞彪 ,
  • 吴伯荣 ,
  • 安伟峰 ,
  • 杨照军 ,
  • 吴锋 ,
  • 陈实
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  • 北京理工大学化工与环境学院;

收稿日期: 2010-02-28

  修回日期: 2010-02-28

  网络出版日期: 2010-02-28

Electrochemical Properties of Ni(OH)_2 Doped by NiO

  • CHEN Fei-biao ,
  • WU Bo-rong ,
  • AN Wei-feng ,
  • YANG Zhao-jun ,
  • WU Feng ,
  • CHEN Shi
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  • (School of Chemical Engineering and Environmental Science,Beijing Institute of Technology,Beijing 100081,China

Received date: 2010-02-28

  Revised date: 2010-02-28

  Online published: 2010-02-28

摘要

于Ni(OH)2中添加具有电容特性和大电流充放电性能良好的NiO.研究发现掺杂5%NiO的Ni(OH)2在0.2C倍率下放电容量可达310.1mAh/g,而3C放电容量还可以保持79.5%.其循环伏安扫描氧化还原峰电位差仅为164mV,表明该材料的循环可逆性好.由此可见在Ni(OH)2掺杂适量的NiO,对于Ni(OH)2的大电流充放电性能确有改进作用.

本文引用格式

陈飞彪 , 吴伯荣 , 安伟峰 , 杨照军 , 吴锋 , 陈实 . 掺杂NiO的Ni(OH)_2电化学性能研究[J]. 电化学, 2010 , 16(1) : 39 -42 . DOI: 10.61558/2993-074X.2034

Abstract

The Ni(OH)2 cathode material of MH/Ni was doped by NiO,which behaves as a capacitor and can improve the charge-discharge rate capacity of Ni(OH)2.The electrochemical properties of Ni(OH)2 was characterized by charge-discharge curves and cyclic voltammetry.The results showed that the material had the best discharge property when doped by 5% NiO,and the discharge specific capacity could reach 310.1 mAh/g at 0.2 C rate and remianed 79.5% at 3 C rate.The difference oxidation and reduction potentials between the of the battery was 164 mV when the Ni(OH)2 was doped by 5% NiO,which showed a good cyclic property.
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