Patent ID: 8932772
Filing Date: 2015-01-13
Classification: H01M,Y02E

Abstract:
1. A fuel cell system, comprising: a first fuel cell structured to have an anode and a cathode provided across an electrolyte membrane, wherein the first fuel cell generates electric power with supply of hydrogen as a fuel gas to the anode and supply of the air as an oxidizing gas to the cathode; a first gas supply mechanism configured to deliver a first gas containing a fuel gas to the cathode; and a controller programmed to control operation of the fuel cell system, wherein the controller is programmed to control the first gas supply mechanism to deliver the first gas to the cathode in a pre-stop process performed at a system stop of the fuel cell system, and the controller is programmed to control the first gas supply mechanism to stop the delivery of the first gas in a second state where a partial pressure difference of each gas component between the anode and the cathode with respect to nitrogen and the fuel gas remaining in the anode and in the cathode is reduced to or below a preset reference value.