Patent ID: 8216726
Filing Date: 2012-07-10
Classification: H01M,Y02E

Abstract:
1. A battery comprising: an electrolytic solution; a positive electrode; and a negative electrode, wherein the negative electrode has a negative electrode active material layer containing a carbon material and having a thickness per one face of 70 μm or more and not more than 120 μm, the electrolytic solution contains a solvent containing 15% by mass or more and not more than 30% by mass of a cyclic carbonate represented by the following formula (1): wherein R a mass content ratio (B/A) of a halogenated cyclic carbonate (B % by mass) contained in the cyclic carbonate (A % by mass) which is represented by the formula (1) is from 0.5 to 1.0; and wherein the halogenated cyclic carbonate is monofluoroethylene carbonate.