Patent ID: 8383292
Filing Date: 2013-02-26
Classification: H01M,Y02E

Abstract:
1. A fuel cell comprising: an electrolyte; and an anode and a cathode which constitute a pair of electrodes that are arranged sandwiching the electrolyte, wherein the cathode includes i) catalyst particles which operate as catalysts for a reaction that creates hydroxide ions from oxygen, and ii) trapping particles which trap hydrogen peroxide ions, wherein the electrolyte selectively conducts anions and is an anion-exchange membrane, and wherein the cathode includes a plurality of electrode layers, one of which is arranged contacting the electrolyte, the plurality of electrode layers including at least one of the catalyst particles and the trapping particles; and the plurality of electrode layers are arranged such that the ratio of the trapping particles to the total number of particles which includes the catalyst particles and the trapping particles in the electrode layer decreases farther away from the electrolyte in order to form the electrode layer on the side contacting the electrolyte.