摘要
用控制电流暂态技术研究碱性镍电极上Ni(OH)_2/NiOOH电对的电化学反应,讨论了充、放电电流对电极性能的影响.用离子注入技术将钴引入镍电极表面层中以提高其充电效率.所得结果表明;钴的注入直接影响该电极表面气体的析出反应,同时使转化为NiOOH的Ni(OH)_2量有所增加.
The electrochemical reactions on nickel electrode in alkaline media were studied with transient constant current technique. The effect of charge and discharge current on the electrode characteristics was discussed. Cobalt ion implantation was applied to research the charge/discharge character of nickel electrode. The reactions of oxygen and hydrogen evolution on the electrode surface were affected by implanted cobalt directly. The amount of NiOOH transformed from Ni(OH)2 was increased after cobalt ion implantation and the charge efficiency of the electrode was improved.
出处
《电源技术》
CAS
CSCD
北大核心
1995年第6期8-10,35,共4页
Chinese Journal of Power Sources
基金
国家自然科学基金资助项目
关键词
镍电极
钴
离子注入
电极性能
电池
nickel electrode,cobalt,ion implantation,electrode characteristics
