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《Chinese Battery Industry》 2008-04
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Study on the digestion of LiCoO_2 and the determination of Co content in the solutions

ZHANG Fu-ping,LI Yun,DING Le,WU Yan-juan,LIU Qing,LI Lei,DING Zhi-yuan (Department of Chemistry,Nanjing University,Nanjing,Jiangsu 210093,China)  
In this paper,the digestion of LiCoO2 by different digestive solvents was reported. The species and the content of Co in the related digestion solutions were measured by the potential back titration and EDTA complex back titration respectively. The results showed that,by utilization of concentrated HCl and by heating the digested solution,the LiCoO2 sample was completely digested. The reduction of LiCoO2 to Co2+ was the main reaction although the generation of Co3+ was also observed. The recovery rate of Co in LiCoO2 digested solution by EDTA complex back titration could reach (99.40 ± 3.96)%.
【Fund】: 南京大学引进人才培养基金;; 南京大学分析测试基金;; 南京大学化学化工学院大学化学开放实验资助课题
【CateGory Index】: TM912
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