Preparing method for negative material of high-capacity tin-base lithium ion battery
Title：
Preparing method for negative material of high-capacity tin-base lithium ion battery
Application Number：
 200410009172
Application Date：
 2004/06/03
Announcement Date：
 2005/02/23
Pub. Date：
 2006/05/03
Publication Number：
 1585160
Announcement Number：
 1254873
Grant Date：
 2006-5-3
Granted Pub. Date：
 2006-5-3
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H01M 4/04, H01M 4/38, H01M 4/66, H01M 4/02, H01M 10/40
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Lin Kezhi, Wang Xiaolin, Xu Yanhui
Key Words：
 Preparing method, negative material, high-capacity, tin-base, lithium ion battery
Abstract：
 The producing method applies the normal temperature reactive solution SnCl2 as the solution, the ammonia as the precipitator, and the cabamide as the compound to supply the O-H, and the KBH4, NaH2PO2 as reducer. The catalyst and some compound complexing agent are also added. During the reaction procedure, the concentration of the reducer is to be controlled to keep definite ratio Sn, to reduce the irreversible capacity in the electrochemical lithium storage procedure. The material produced effectively remites the volume changing of the electrode resulted in the discharging process.
Claim：
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PCT：
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