METHOD AND APPARATUS FOR OPERATING AN ELECTROCHEMICAL FUEL CELL WITH PERIODIC FUEL STARVATION AT THE ANODE
摘要
A method and apparatus is provided for operating an electrochemical fuel cell with periodic momentary fuel starvation at the anode. It is believed that such momentary periodic fuel starvation conditions cause the anode potential to increase, resulting in the oxidation and removal of electrocatalyst poisons from the anode electrocatalyst and improved fuel cell performance. In a preferred method, while successive localized portions of the fuel cell anode are momentarily periodically fuel starved, the remainder of the fuel cell anode remains electrochemically active and saturated with fuel such that the fuel cell is continually available to generate power.
申请公布号
EP1042836(A1)
申请公布日期
2000.10.11
申请号
EP19980960973
申请日期
1998.12.22
申请人
BALLARD POWER SYSTEMS INC.
发明人
ALLAN, DEREK, E.;WILKINSON, DAVID, P.;CHOW, CLARENCE, Y., F.;JOHANNES, ERIK, P.;ROBERTS, JOY, A.;ST-PIERRE, JEAN;LONGLEY, CINDY, J.;CHAN, JOHN, K., K.