Patent ID: 8021772
Filing Date: 2011-09-20
Classification: H01M,Y02E

Abstract:
1. A preservation assembly of a polymer electrolyte fuel cell stack, comprising: an uninstalled polymer electrolyte fuel cell stack 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 uninstalled 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; and sealing units including sealing plugs or containers and configured to seal the inlet and the outlet of the oxidizing agent passage within which an oxygen concentration has been decreased and to seal the inlet and the outlet of the reducing agent passage within which the oxygen concentration has been decreased, wherein the uninstalled polymer electrolyte fuel cell stack is in a state after manufacture of the polymer electrolyte fuel cell stack and before permanent incorporation of the polymer electrolyte fuel cell stack into a fuel cell system.