Patent ID: 9559363
Date: 2017-01-31
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. A polymer electrolyte fuel cell comprising a membrane-electrode assembly for a fuel cell and a fuel, wherein the membrane-electrode assembly comprises a cathode, an anode and an electrolyte membrane disposed between the cathode and the anode, wherein the cathode comprises a first support and a cathode electrode catalyst layer, the anode comprises a second support and an anode electrode catalyst layer, a hygroscopic inorganic material is contained in the cathode electrode catalyst layer, and no hygroscopic inorganic material is contained in the anode electrode catalyst layer, wherein the fuel is hydrogen gas and is applied to the anode, and wherein the hygroscopic inorganic material is silica nanoparticles, and the silica nanoparticles are amorphous nanoparticles having an average particle size of less than 5 nm; the silica nanoparticles have a Q3/Q4 ratio of 1-3 (based on