Patent ID: 8741473
Filing Date: 2014-06-03
Classification: H01M,Y02E,Y02P

Abstract:
1. A pouch-type lithium secondary battery, comprising: an electrode assembly having an anode, a cathode, and a separator interposed between the cathode and the anode for electrical insulation therebetween; a pouch-type case made of a sheet to provide a space in which the electrode assembly is housed; and a non-aqueous electrolyte injected into the electrode assembly, wherein the non-aqueous electrolyte is a non-linear carbonate-based non-aqueous electrolyte including a lithium salt, (a) a cyclic carbonate compound, and (b) a linear ester compound selected from the group consisting of propionate-based compound, methyl butyrate, propyl acetate, and mixtures thereof, and does not contain a linear carbonate compound, and wherein, during LiPF