Patent ID: 9153842
Filing Date: 2015-10-06
Classification: H01M,Y02E

Abstract:
1. A rechargeable lithium battery, comprising: a positive electrode comprising a positive active material and activated carbon; a negative electrode comprising a negative active material; a lithium salt and a non-aqueous organic solvent, wherein the non-aqueous organic solvent comprises about 30 volume % to about 80 volume % of propylene carbonate; the non-aqueous organic solvent further comprises an acetate-based ester solvent and a halogenated benzene wherein the acetate-based ester solvent is present at about 10 parts by volume to about 50 parts by volume, and the halogenated benzene is present at about 5 parts by volume to about 20 parts by volume, based on 100 parts by volume of the non-aqueous organic solvent; and wherein the negative active material comprises an amorphous carbon comprising soft carbon, hard carbon, mesophase pitch carbide, fired coke, or combinations thereof.