Method for preparing lithium enriched lithium ion phosphate powder |
Title： |
| Method for preparing lithium enriched lithium ion phosphate powder |
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Application Number： |
200510132431 |
Application Date： |
2005/12/23 |
Announcement Date： |
2006/07/19 |
Pub. Date： |
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Publication Number： |
1803592 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
C01B 25/45, C01B 25/26, H01M 4/58, H01M 4/36 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Tang Zilong, Luo Shaohua, Zhang Zhongtai, Lu Junbiao, Yan Junping |
Key Words： |
lithium enriched, lithium ion phosphate powder, preparing method |
Abstract： |
The invention discloses a preparation method for lithium-rich ferrous lithium phosphate powder with molecular formula as Li(1+2x)Fe(P1-xBx)O4 in electrochemical power source material. Wherein, mixing the lithium salt, ferrous iron salt, phosphorus salt and substitude of borone-containing compound as given mole ratio; baking, pre-calcining, and hihg-temperature secondary calcining to obtain the product. This invention is convenient to realize part substitude and lithium enrichment on parent body with solid phase method to improve cell capacity and cycle performance, and has wide application future. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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