| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve energy density, electromotive force, cycle lifetime, and safety. <P>SOLUTION: This electrolytic solution for a secondary battery is provided with a solvent and an additive dissolved in the solvent. That additive is one compound in vinyloxysulfone compounds, having a vinyloxysulfone group expressed by the chemical Formula: H<SB>2</SB>C=CH-O-SO<SB>2</SB>- and a substance selected from among a group formed from a mixture of a plurality of compounds in the vinyloxysulfone compounds. The secondary battery is superior in energy density, electromotive force, cycle lifetime, and safety to which such electrolytic solution 10 is applied. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
