电源技术2001,Vol.25Issue(2):78-80,3.
高密度球形Ni(OH)2的表面修饰
Surface modification of high density spherical Ni(OH)2
杜晓华 1张泉荣 1姜长印 1万春荣1
作者信息
- 1. 清华大学核能技术设计研究院新型能源与材料化学研究室,
- 折叠
摘要
Abstract
It is needed to add a certain amount of conductive agents in the nickel cathode during the manufacturing process to enhance its conductivity. But the uniformity and the utilization factors of the conductive agent are not so ideal because of the blend technics. In the present work, the surface of the Ni(OH)2 grains is micro-encapsulated with a layer of cobalt compounds by using the dynamic feeding technique. The results from SEM show that the coating layer is well distributed on the surface of the Ni(OH)2 grains, and the layer is combined with the grains tightly. The results of the electrochemical tests of charge-discharge at 0.3C and 1.0C show that the utilization factor of the active materials and the charge-discharge efficiency of the nickel cathode using the cobalt coated Ni(OH)2 powders were improved obviously.关键词
镍电极/表面改性/Ni(OH)2/Co(OH)2分类
信息技术与安全科学引用本文复制引用
杜晓华,张泉荣,姜长印,万春荣..高密度球形Ni(OH)2的表面修饰[J].电源技术,2001,25(2):78-80,3.