Patent ID: 8709677
Filing Date: 2014-04-29
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A proton conducting polymer electrolyte comprising a proton conducting ionomer and a polymetaloxane copolymer additive, wherein the polymetaloxane copolymer additive, prior to addition, comprises (i) cross-linking functional groups and (ii) other functional groups, and wherein, in the proton conducting polymer electrolyte, the ionomer and copolymer additive are covalently bonded or acid-base complexed together at the cross-linking functional groups of the polymetaloxane copolymer, wherein: the polymetaloxane copolymer prior to addition comprises a polymerized network of a plurality of metal oxide monomers with the cross-linking functional groups and a plurality of metal oxide monomers with the other functional groups, in random or block sequence, wherein: the metal oxide monomers with other functional groups comprise: