Patent ID: 8137829
Filing Date: 2012-03-20
Classification: B60L,H01M,Y02E,Y02T

Abstract:
1. A method of preserving a polymer electrolyte fuel cell stack that is provided with an oxidizing agent passage having an inlet and an outlet and extending through a cathode and a reducing agent passage having an inlet and an outlet and extending through an anode, the polymer electrolyte fuel cell stack being configured to generate power through an electrochemical reaction caused to occur in the cathode and the anode using an oxidizing agent supplied from the inlet of the oxidizing agent passage and a reducing agent supplied from the inlet of the reducing agent passage, the method comprising: preserving the polymer electrolyte fuel cell stack in an uninstalled state in such a manner that an interior of the oxidizing agent passage and an interior of the reducing agent passage are set in a pressure-reduced state, wherein the uninstalled state is a state that the polymer electrolyte fuel cell stack is not assembled into a fuel cell system for generating power.