| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithium-ion secondary battery with a long-term cycle characteristics improved. <P>SOLUTION: In the lithium-ion secondary battery provided with a cathode, an anode, electrolyte solution, and separators, the electrolyte solution has a cyclic disulfonic acid ester and a surfactant. <P>COPYRIGHT: (C)2008,JPO&INPIT |
