MANUFACTURING METHOD OF NEGATIVE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NEGATIVE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY MANUFACTURED THEREBY

摘要

PROBLEM TO BE SOLVED: To provide a negative active material for a nonaqueous electrolyte secondary battery having high crystallinity, excellent high-rate charge discharge characteristics, and excellent charge discharge cycle characteristics.

SOLUTION: The manufacturing method of a negative active material for a nonaqueous electrolyte secondary battery has a first baking process mixing and baking at least a vanadium compound and a lithium compound to obtain Li1.0(VxMy)1.0O2having rock salt structure (0.5≤x≤1.0; 0≤y≤0.5; x+y=1; M represents group 2-15 elements of the periodic table); and a second baking process adding a lithium compound to the Li1.0(VxMy)1.0O2and baking them.

COPYRIGHT: (C)2009,JPO&INPIT