Patent ID: 7422811
Filing Date: 2008-09-09
Classification: H01M,Y02E

Abstract:
1. A fuel cell life predicting device for predicting the life of a fuel cell comprising at least a membrane-electrode assembly having an anode, a cathode and a polymer electrolyte membrane disposed interposed between said anode and said cathode, wherein there are provided a measuring device, which measures the amount of chemical species produced by the decomposition reaction of said polymer electrolyte membrane contained in the waste material discharged from said fuel cell during electricity generation, a life predicting device, which predicts the life of said fuel cell by the use of said amount of said chemical species measured by said measuring portion, wherein, said measuring portion measures the decomposed amount of said polymer electrolyte member by the use of said amount of said chemical species and, use of the formula: said polymer electrolyte membrane comprises a fluorine-containing polymer material incorporated therein as a constituent and said chemical species measured by said measuring portion are fluoride ions.