Chemical Extraction Preparation of Delithiated Cathode Materials of Li-ion Battery

武汉理工大学学报-材料科学版(英文版), 2009, 24(6): 863-866. doi: 10.1007/s11595-009-6863-x

^1, , ^2, , ^3, , ^4,

1.School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China

2.School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China

3.School of Materials Science and Engineering,Shanghai University,Shanghai 200072,China

4.Department of Materials Physics and Chemistry,University of Science and Technology Beijing,Beijing 100083,China

基金项目: the National Natural Science Foundation of Shanxi Province (2008011042-2)

Chemical Extraction Preparation of Delithiated Cathode Materials of Li-ion Battery

YAN Shijian ^1, , ZHANG Mingang ^2, , CHAI Yuesheng ^3, , TIAN Wenhuai ^4,

1.School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China

2.School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China

3.School of Materials Science and Engineering,Shanghai University,Shanghai 200072,China

4.Department of Materials Physics and Chemistry,University of Science and Technology Beijing,Beijing 100083,China

Keywords： chemical extraction

A method of conventional chemical reaction to prepare delithiated cathode materials of Li-ion battery was introduced.The cathode material of Li-ion battery was mixed with oxidizing agent Na_2S_2O_8 in water solution,and the solution was stirred continuously to make the chemical re-action proceed sufficiently,then the reaction product was filtered and finally the insoluble delithiated cathode material was obtained.A series of tests were conducted to verify the composition,crystal structure and electrochemical property of the delithiated cathode materials were all desirable.This method overcomes the shortcomings of battery charging preparation and chemical extraction prepa-ration employing other oxidizing agents.

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Chemical Extraction Preparation of Delithiated Cathode Materials of Li-ion Battery

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