Preparation method of rare earth doped iron lithium phosphate powder
Title：
Preparation method of rare earth doped iron lithium phosphate powder
Application Number：
 200510132429
Application Date：
 2005/12/23
Announcement Date：
 2006/06/14
Pub. Date：
Publication Number：
 1785800
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C01B 25/45
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Tang Zilong, Luo Shaohua, Zhang Zhongtai, Lu Junbiao, Yan Junping
Key Words：
 Preparation method, rare earth doped, iron lithium phosphate powder
Abstract：
 The present invention discloses a preparation method of rare earth doped iron lithium phosphate powder body, belonging to the field of electrochemical power supply material preparation technology. Its molecular formula is Li1-xRExFePO4, and its preparation method includes the following steps: mixing lithium salt, ferrous salt, phosphate and adulterant according to a certain mole ratio, drying, low-temperature prebaking and high-temperature secondary calcining so as to obtain the invented product which can be used as positive electrode material of secondary lithium ion cell and power energy source cell. Said invention uses lanthanide series rare earth element compound as adulterant.
Claim：
Priority：
PCT：
LegalStatus：

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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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