Patent ID: 8748054
Filing Date: 2014-06-10
Classification: H01M,Y02E

Abstract:
1. A method for supplying operating gas to an anode gas chamber and a cathode gas chamber of a fuel cell, wherein the fuel cell further comprises a cell membrane between the anode gas chamber and the cathode gas chamber, wherein the operating gas includes a first operating gas supplied to the cathode chamber and a second operating gas supplied to an anode chamber, the method comprising: initially supplying the first operating gas to the cathode gas chamber at a first pressure increase velocity, when the pressure in the cathode gas chamber is below a predetermined value; and subsequently supplying the first operating gas to the cathode gas chamber at a second pressure increase velocity when the pressure in the cathode gas chamber exceeds said predetermined value, wherein first pressure increase velocity is less than the second pressure increase velocity, such that mechanical stresses on the cell membrane are reduced.