Title: Process of producing lithium iron phosphate precursor with ferrous sulfate as side product of titanium white production
Application Number: 200610136902 Application Date: 2006.12.19
Publication Number: 1974411 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C01G49/06;C01B25/45;H01M4/58
Applicant(s) Name: Central-South China Univ. Address:
Inventor(s) Name: Hu Guorong;Peng Zhongdong;Du Ke;Zhou Yulin;Li Jie;
Attorney & Agent: gongcan fan
Abstract:
    The present invention relates to process of producing lithium iron phosphate precursor for producing positive pole material of lithium ion cell with ferrous sulfate as the side product of titanium white production. By using the ferrous sulfate as material, and through depurating, adding some beneficial elements for raising the yield of lithium iron phosphate, deposting and vacuum drying the precipitate, and roasting, ferric oxide as the lithium iron phosphate precursor for producing positive pole material of lithium ion cell is obtained. The present invention has the advantages of simple technological process, low production cost and high product purity, and is suitable for comprehensive utilization of ferrous sulfate as the side product of titanium white production while providing material for producing lithium iron phosphate precursor.
Time: 16
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