Macro-grain LiCoO2 of anode material for lithium ion cell and preparing process thereof |
Title： |
| Macro-grain LiCoO2 of anode material for lithium ion cell and preparing process thereof |
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Application Number： |
200510012121 |
Application Date： |
2005/07/08 |
Announcement Date： |
2006/01/11 |
Pub. Date： |
2007/06/20 |
Publication Number： |
1719643 |
Announcement Number： |
1322614 |
Grant Date： |
2007-6-20 |
Granted Pub. Date： |
2007-6-20 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H01M 4/58, H01M 4/48, H01M 4/04, C01D 15/00, C01G 1/02, C01G 51/00 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Zeng Zhaoqiang, Hu Xiaoqing |
Key Words： |
lithium ion cell, anode material, macro-grain LiCoO2, preparing process |
Abstract： |
This invention relates to a positive material big grain LiCoO2 with Li2Co3, nm Co3O4 and mum Co3O4 as the raw materials used in Li ionic batteries and its preparation method. Said material is matched according to the following formula: Li2 Co3:1~1.05, nm Co3O4, 0.2~0.5, mum Co3O4: 0.5~0.8, the proportion is the actual mol number. The material is ball-milled, dried, sieved then to be calcinated under 850deg.C in air and heat insulated to get the big grain LiCoO2 powder. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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