Patent ID: 9083049
Filing Date: 2015-07-14
Classification: H01M,Y02E,Y02P

Abstract:
1. A process comprising: forming a dispersion comprising a first ionomer, an additive, and at least one of an alcohol or water; said ionomer comprising a polymeric molecule having a carbon-fluorine backbone chain with perfluoro side chains containing sulfonic groups; casting and drying the dispersion to form a dried first layer comprising the first ionomer and additive, the additive comprising nanoparticles of a metal oxide having at least one dimension that is less than 200 nm and a metal oxide purity ranging from 90-100 percent pure, the nanoparticles of the metal oxide being present in at least one weight percent of the dried first layer, and wherein the nanoparticles of the metal oxide comprise one of the following: (1) CeO