METHOD FOR DIAGNOSING DEGRADATION OF FUEL CELL STACK, METHOD FOR MULTI-POINT ANALYSIS OF FUEL CELL, AND METHOD FOR ESTIMATING PERFORMANCE OF FUEL CELL MEMBRANE ELECTRODE

A method for diagnosing degradation of a fuel cell stack, including: S, qualitatively determining a degradation type of the fuel cell stack according to a voltage-current curve of the fuel cell stack; S, quantitatively measuring parameter values of each of individual cells of the fuel cell stack according to the degradation type, and quantitatively determining a degradation degree of each of the individual cells according to the parameter values; S, determining a uniformity degradation degree among the individual cells of the fuel cell stack according to a non-uniformity degree of a voltage distribution of the individual cells. By qualitatively determining the degradation type of the fuel cell stack, the degradation condition of the entire fuel cell stack may be obtained.