Process for preparing spherical V2O5 and lithium vanadate as anode material of Li-ion battery
Title:
Process for preparing spherical V2O5 and lithium vanadate as anode material of Li-ion battery
Application Number:
02116311
Application Date:
2002/03/22
Announcement Date:
2002/09/18
Pub. Date:
Publication Number:
1369435
Announcement Number:
1172857
Grant Date:
2004-10-27
Granted Pub. Date:
2004-10-27
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
C01G 31/00, C01G 31/02, H01M 4/48, H01M 4/58
Applicant(s):
Qinghua Univ
Inventor(s):
Gao Jian, Jiang Changyin, Wan Chunrong
Key Words:
preparing process, spherical V2O5, lithium vanadate, anode material, Li-ion battery
Abstract:
A process for preparing spherical V2O5 and lithium vanadate used as positive electrode material of Li-ion battery includes smelting NH4VO3, quick cooling in deionized water to generate V2O5 sol, spray drying to obtain spherical V2O5, adding LiOH to V2O5 sol, doping with CO, Ni, or Al, spray drying and heat treating to obtain spherical doped Li1+xV3O8. Its advantages are high stack density, high specific capacity and improved electrochemical performance.
Claim:
Priority:
PCT:
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