Patent ID: 9153836
Filing Date: 2015-10-06
Classification: C07C,H01M,Y02E

Abstract:
1. A secondary battery comprising a cathode, an anode and an electrolytic solution, wherein the electrolytic solution includes a solvent including a sulfone compound selected from the group consisting of compounds represented by Chemical Formulae 41(1) to 41(8) and a cyclic carbonate selected from the group consisting of 4-fluoro-1,3-dioxolan-2-one, trans-4,5-difluoro-1,3-dioxolan-2-one and cis-4,5-difluoro-1,3-dioxolan-2-one: wherein a content of the sulfone compound in the solvent is within a range from 1 wt % to 10 wt % both inclusive, wherein the anode includes an anode active material including at least silicon, and wherein a content of the cyclic carbonate ranges from 1 wt % to 5 wt %.