电池2017，Vol.47Issue(3)：140-143,4.DOI:10.19535/j.1001-1579.2017.03.004
金属粉末添加剂对锌镍电池正极性能的影响
Effect of metal powder additives on performance of cathode in Ni-Zn battery
摘要
Abstract
The metal powders (silver powder,copper powder and cobalt powder)were mixed with nickel hydroxide [Ni (OH)2],the positive electrode active material of zinc-nickel battery,by physical addition method.The prepared samples were analyzed by polarization curve,electrochemical performance test and SEM analysis.The effect of silver powder on the performance of nickel electrode was better than that of copper powder.The corrosion resistance of the nickel electrode added silver powder and cobalt powder was improved and the corrosion inhibition efficiency of the nickel electrode with cobalt powder was the highest in alkaline solution(6 mol/L KOH + 10 g/L LiOH) and the nickel electrode corrosion was accelerated by addition of the copper powder.It was considered that the performance of nickel electrode with cobalt powder was the best,and the suitable dosage was 5％.When charged 6 h and discharged to 1.2 V with the current of 0.2C,the cycle retention rate of nickel electrode was 89％ for the first 30 cycles and the maximum discharge specific capacity was 247.7 mAh/g.关键词
镍电极/钴粉/放电容量/缓蚀效率/锌镍电池Key words
nickel electrode/cobalt powder/discharge capacity/corrosion inhibition efficiency/Ni-Zn battery分类
信息技术与安全科学引用本文复制引用
吕祥,俞小花,和晓才,谢刚..金属粉末添加剂对锌镍电池正极性能的影响[J].电池,2017,47(3):140-143,4.基金项目
国家自然科学基金(51374118),云南省创新引导与科技型企业培育计划(2015FB126) （51374118）
