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ICP-AES法测定LiCoO₂中杂质成分的分析方法研究

Determination of Impurity Elements in LiCoO₂ by ICP AES

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【Author】 Liu Ying, Zang Muwen, Tong Jian and Zhuo Jun (General Research Institute for Nonferrous Metals, Beijing 100088, China)

【机构】北京有色金属研究总院!北京100088；

【摘要】研究建立了电感耦合等离子发射光谱 (ICP AES)法测定锂离子电池电极材料中杂质成份镍、铁、钠、钙的分析方法。试样分析与误差统计结果分别为 :相对标准偏差(RSD) (n=6) :镍≤ 2 5 %、铁≤ 4 4%、钠≤ 8 5 %、钙≤ 4 6 % ,加标回收率 :镍 98 3 %～1 0 1 3 %、铁 99 6 %～ 1 0 2 5 %、钠 99 6%～ 1 0 2 5%、钙 96 0 %～ 1 0 0 %。该分析方法准确、简便、快速 ,完全能满足锂离子电池电极材料分析的要求。更多还原

【Abstract】 An ICP AES method for the determination of impurity composition Ni, Fe, Na, Ca in electrode material of lithium ion battery was established. The RSD ( n =6) were: Ni≤2.5%, Fe≤4.4%, Na≤8.5%, Ca≤4.6%; The average recoveries were: Ni 98.3%～101.3%, Na 93.0%～100.1%, Ca 99.6%～102.5%, Ca 96.0%～100.0%. This method is accurate, simple, rapid and with satisfactory results.更多还原