Lithium ion cell anode material and its preparing method |
Title： |
| Lithium ion cell anode material and its preparing method |
|
Application Number： |
200410101824 |
Application Date： |
2004/12/24 |
Announcement Date： |
2005/07/20 |
Pub. Date： |
|
Publication Number： |
1641914 |
Announcement Number： |
|
Grant Date： |
|
Granted Pub. Date： |
|
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H01M 4/48, H01M 4/58, H01M 4/04, C01D 15/02, C01G 1/02 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Li Xinlu, Kang Feiyu, Zheng Yongping |
Key Words： |
Lithium ion cell, anode material, preparing method |
Abstract： |
The invention relates to a lithium ion battery anode active material and the method to produce. It belongs to functional ceramic and chemical electric power source technology field. The invention adopts sol gel method and wet grinding to compound precursor to realize the intimate mixing of the transition metal ion. And using granulation technology realizes the controlling of the shape of the grain. The producing method includes the following steps: mixing and whisking the water solution and the complexant solution; using ammonia to adjust the PH value of the solution; making sol gel under constant temperature and taking multiple steps heat process and palletizing; calcinating for 8-12 hours under 750-850 degree centigrade in oxygen. And graining the product after calcinating, the material would be gained. |
Claim： |
|
Priority： |
|
PCT： |
|
LegalStatus： |
|
Relevancy information
