Patent ID: 7674559
Filing Date: 2010-03-09
Classification: H01M,Y02E,Y02P

Abstract:
1. A lithium secondary battery comprising an electrode assembly having two electrodes and a separator interposed between the two electrodes and a case that contains the electrode assembly, wherein the separator comprises a binder and a filler including solid electrolyte particles having lithium ion conductivity and a non-ion-conductive ceramic powder, wherein the solid electrolyte particles and the non-ion-conductive ceramic powder are connected to each other, wherein a mass ratio of filler to binder in the separator is about 95:5 or greater, and wherein the binder does not cover entire surfaces of the solid electrolyte particles and the non-ion-conductive ceramic powder, wherein the solid electrolyte particles include at least one composition selected from the group consisting of LiCl—Li