Patent ID: 8142936
Filing Date: 2012-03-27
Classification: H01B,H01M,Y02E

Abstract:
1. A nonaqueous electrolyte solution comprising the following components: i) a lithium salt; ii) an electrolyte solvent; iii) a first additive compound with an oxidation initiation potential of 4.2-5.3 V; and iv) a second additive compound with an oxidation initiation voltage of 4.2-5.3 V, which is higher in oxidation initiation potential than the first additive, and which deposits oxidative products or forms a polymer film, in oxidation, and wherein the first additive and the second additive are respectively vinylbenzene and ethylbenzene; toluene and t-butylbenzene; mesitylene and bromoethylbenzene; or furan and fluorobiphenyl.