| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery using a lithium vanadium phosphate compound for a positive electrode, and excelling in a charge-discharge cycle characteristic at high temperatures. <P>SOLUTION: When Li<SB>3</SB>V<SB>2</SB>(PO<SB>4</SB>)<SB>3</SB>particles are subjected to an oxidation treatment in the air, a substance with a tetravalent or more vanadium compound arranged on the surfaces of the Li<SB>3</SB>V<SB>2</SB>(PO<SB>4</SB>)<SB>3</SB>particles is formed. By using the substance as a positive electrode active material, this nonaqueous electrolyte battery suppressed in elution of vanadium in a high-temperature environment, and excelling in a charge-discharge cycle characteristic at high temperature can be provided. <P>COPYRIGHT: (C)2010,JPO&INPIT |
