Prepn process of oxygen place doped lithium ferric phosphate powder
Title：
Prepn process of oxygen place doped lithium ferric phosphate powder
Application Number：
 200510112562
Application Date：
 2005/10/11
Announcement Date：
 2006/05/17
Pub. Date：
 2007/08/22
Publication Number：
 1772604
Announcement Number：
 1332878
Grant Date：
 2007-8-22
Granted Pub. Date：
 2007-8-22
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C01B 25/45, H01M 4/58
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Zhang Zhongtai, Luo Shaohua, Tang Zilong, Lu Junbiao, Yan Junping
Key Words：
 Prepn process, oxygen place doped, lithium ferric phosphate, powder
Abstract：
 The present invention belongs to the field of electrochemical power source material preparing technology, and is especially preparation process of oxygen place doped lithium ferric phosphate powder. The oxygen place doped lithium ferric phosphate as positive pole material in lithium ion cell has the molecular expression LiFeP(MxO4-x), and is prepared through mixing the dopant and the mother body material and sintering the mixture, or through solid phase reaction of the dopant and the mother body material. The preparation process has effective doping in the oxygen place of mother body material and the prepared material can raise the capacity and the circular discharge performance of the cell effectively and thus can find its wide application as positive pole material in secondary lithium ion cell and power cell.
Claim：
Priority：
PCT：
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