Patent ID: 8993192
Filing Date: 2015-03-31
Classification: C08J,H01B,H01M,Y02E,Y02P

Abstract:
1. An electrolyte membrane, comprising: a structure comprising an aggregate of at least one fine core-shell particle, wherein a core of the core-shell particle comprises, as a core, at least one fine rubber particle with an average particle size of 20 nm to 1 μm and with a content of less than 5 mol % of monomer units comprising ion-conducting groups, wherein the fine rubber particle is uniformly dispersed in a matrix comprising a resin component, wherein a repeating unit of the resin component comprises at least one ion-conducting group, wherein an outer surface of the at least one fine rubber particle is covered, as a shell, with the resin component, wherein the ion-conducting group in the resin component is a proton-conducting group, and wherein the ion-conducting group in the resin component is at least one group selected from the group consisting of a sulfonic acid group, a phosphonic acid group, a carboxyl group, and any salt form thereof, of formulae —SO