| 摘要 |
A bipolar fuel cell stack is provided, along with a method for two-stage internal reforming in fuel cells, in which electric power can be generated from the reaction of hydrocarbon fuel with oxidant gases in the fuel cells. The fuel cell stack can include two or more electrochemical fuel cells in thermal contact to provide direct internal reforming. The fuel is reformed and partially utilized to produce electric power in a set of first stage cells, and further utilized to generate additional electric power in a set of second stage cells. In the first stage cells, the fuel is actively mixed with products of reaction over the anode to limit fuel concentration and suppress soot formation. The first stage exhaust then passes through the second stage cells in plug flow mode to increase fuel utilization. |
