Patent ID: 8158287
Filing Date: 2012-04-17
Classification: H01M,Y02E

Abstract:
1. A fuel cell system comprising: a fuel cell stack including a laminate formed by combining a membrane electrode assembly comprising an electrolyte membrane, an anode on one side of the electrolyte membrane, and a cathode on the other side of the electrolyte membrane, with a fuel channel plate having a fuel channel for supplying a fuel to the anode, an oxidant channel plate having an oxidant channel for supplying an oxidant to the cathode, and a heat-medium channel plate having a heat-medium channel for a heat medium to flow through; a unit which cools the heat medium exhausted from the fuel cell stack before the heat medium is put into the fuel cell stack for circulation; and a control unit which, in a system stopping process, continues the circulation of the heat medium and continues to generate power until a temperature of the heat medium exhausted from the fuel cell reaches a predetermined temperature lower than a normal power generation temperature, interrupts a load current when the temperature of the heat medium drops below a predetermined temperature, and stops cooling the heat medium when a predetermined cooling stop condition is met.