化学法测定锂离子电池正极材料中的镍

Determination of Ni in cathode material of Li-ion battery by chemical method

采用化学分析方法，对锂离子电池正极材料中的高含量成分镍进行了测定，探讨了在大量干扰元素锰、钴存在下的测定条件．研究结果表明，该方法标准偏差小于0．054，变异系数小于0．20％，回收率在99．63％-100．5％之间．

The classical chemical analytical method was used to determine high-content Ni in cathode materials of Li-ion battery. The determination conditions were studied with coexisted ion of big amount of Mn and Co. The results show that the method is accurate and the precision with the standard deviation is below 0.054 ,the coefficient of variation is below 0.20% ,the recovery is between 99.63% - 100.5%.