Method for preparing lithium ion battery positive electrode composite material
Title：
Method for preparing lithium ion battery positive electrode composite material
Application Number：
 200610114063
Application Date：
 2006/10/26
Announcement Date：
 2007/04/11
Pub. Date：
Publication Number：
 1945876
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H01M 4/04, B22F 1/02, B22F 9/00, H01M 4/58, H01M 4/48
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Li Xinlu
Key Words：
 lithium ion battery, positive electrode, preparing method
Abstract：
 This invention discloses a preparation method for the positive complex material of Li ionic cells, which applies a surface covering technology to cover an Al2O film of amorphous structure on a positive active substance surface of the Li ionic cells, confects the Al salt and a solvent to a soluble Al salt solution then mixes it with the positive active substance in proportion and mix them uniformly then to get a positive complex material of Li ionic cell with an amorphous structure Al2O film covered on the surface after filtration, sinter and cool naturally, which improves the interface state of the electrolyte and positive active substance and suppresses the badness reaction between the two.
Claim：
Priority：
PCT：
LegalStatus：

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