| abstract |
A direct methanol fuel cell (DMFC) is operated by evaporating a coolant in the fuel cell, evaporating a methanol/water mixture in an evaporator using heat from the fuel cell and supplying the evaporated methanol/water mixture to the anode space of the fuel cell. An Independent claim is also included for apparatus comprising a DMFC containing a coolant line, an evaporator with a fuel feed line and a fuel vapor line leading to the anode space of the fuel cell, and a system for passing excess heat from the fuel cell to the evaporator. |