ICP-AES法测定磷酸铁锂中杂质元素的分析方法  

Analytical method of impurity elements in LiFePO_4 by ICP-AES

作　　者：白晓艳[1] 马小利[1] 杨容[1] 张超[1] 唐海波[1] 

机构地区：[1]北京有色金属研究总院动力电池研究中心,北京100088

出　　处：《电源技术》2016年第1期41-43,共3页Chinese Journal of Power Sources

基　　金：国家自然科学基金(51202014)

摘　　要：研究建立了电感耦合等离子体发射光谱法（ICP-AES）测定磷酸铁锂中10种杂质元素的分析方法。选择了各元素合适的分析谱线,并对仪器工作条件进行了优化。考察了盐酸基体浓度对谱线强度的影响,测定了方法的检出限。该方法简便快速,具有很好的精密度和准确度,各元素的精密度为1.0%~4.7%,加标回收率为91.4%~109.4%,完全能够满足电极材料的分析要求。An ICP-AES method for determination of ten kinds of impurity Elements in LiFePO4 was established. The appropriate analysis line of various elements was chosen and the working conditions of the instrument was optimized. The effect of the acidic of HCI on the intensity of lines was investigated. Method Detection Limit （MDL） was determined. The method was simple and quick, having good precision and accuracy. The relative standard deviation of ten kinds of elements was within 1.0%-4.7%, and the recovery was at 91.4%-109.4%, which could completely satisfy the need of cathode materials analysis.

关 键 词：电感耦合等离子体发射光谱法 磷酸铁锂 杂质元素 

分 类 号：TM912[电气工程—电力电子与电力传动]