Catalyst-polymer liquid dispersion for fuel cell applications

Details Catalyst-polymer liquid dispersion for fuel cell applications Catalyst-polymer liquid dispersion for fuel cell applications

H - Electricity

01

M

H01M 8/10 (2006.01)

Patent

CA 2655609

Catalyst-polymer liquid dispersion (LD) comprising (i) catalyst particles, (ii) polymer particles consisting of at least one (per)fluoro sulfonyl fluoride polymer in the -SO2F form, and (iii) an aqueous suspending medium. Catalyst coated membrane precursor (CCMP), catalyst coated membrane (CCM) and catalytic ionomeric ink (CII) derived therefrom and methods for their manufacture. Catalyst coated membrane (CCM-CII) derived from said (CII).

L'invention concerne une dispersion liquide (LD) catalyseur-polymère comprenant (i) des particules de catalyseur, (ii) des particules de polymère consistant en au moins un polymère de fluorure de (per)fluorosulfonyle sous forme -SO2F et (iii) un milieu de suspension aqueux. L'invention concerne également un précurseur de membrane enduite de catalyseur (CCMP), une membrane enduite de catalyseur (CCM) et une encre ionomère catalytique (CII) dérivant de cette dispersion, ainsi que leurs procédés de fabrication. L'invention concerne également une membrane enduite de catalyseur (CCM-CII) dérivant de ladite (CII).

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