| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high capacity secondary lithium battery having excellent storage quality and cycle property, and a large remaining capacity after continuous charging with small gas yield. <P>SOLUTION: The non-aqueous electrolyte solution comprises lithium salts and a non-aqueous electrolyte solvent that dissolves the lithium salts, wherein 0.2 to 2 mols/l of LiPF<SB>6</SB>and 0.001 to 0.2 mols/l of LiN(CnF<SB>2n+1</SB>SO<SB>2</SB>)<SB>2</SB>(n=1 or 2) are contained as the lithium salts, and the non-aqueous electrolyte solvent comprises essentially of (1) ethylene carbonate and/or propylene carbonate, (2) chain carbonate, and (3) vinylene carbonate. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
