Method for testing electrolyte membrane endurance of fuel cell

摘要

The present invention relates to a durability evaluation method for predicting the lifetime of an electrolyte membrane for a fuel cell, and more particularly, to a durability evaluation method for evaluating the durability of an electrolyte membrane And more particularly, to a durability evaluation method for predicting the life of an electrolyte membrane for a fuel cell, in which the durability for predicting the lifetime of the electrolyte membrane can be accurately evaluated while promoting the formation of pinholes in a weak region.;To this end, the present invention provides a method of manufacturing a fuel cell, comprising: performing an electrochemical deterioration accelerating operation so as to generate a scratch or pinhole in a weak region of an electrolyte membrane; Repeating a predetermined humidifying / drying cycle to induce contraction and expansion of the electrolyte membrane while accelerating pinhole generation; Measuring the hydrogen permeation current for the electrolyte membrane in order to accurately confirm that a pinhole is formed in the electrolyte membrane; Evaluating durability and life expectancy by comparing an electrolyte membrane identified as having generated pinholes with an electrolyte membrane as an evaluation reference; The present invention also provides a method of evaluating durability for estimating the life of an electrolyte membrane for a fuel cell.;Fuel cell, electrolyte membrane, durability, lifetime, pinhole, humidification / drying, electrochemical deterioration