A bipolar fluid flow flied plate for a fuel cell delivers fuel to a porous anode electrode and oxidant to an adjacent porous cathode electrode. The flow field plate comprises an electrically conductive, non-porous sheet into which fluid flow conduits are formed. A first fluid flow channel is patterned into a first face of the sheet and a second fluid flow channel patterned into the opposite face of the sheet. The pattern of the first channel comprises an interdigitated comb that co-operates with a pattern of the second channel comprising a continous serpentine path, so that no portion of the first channel directly overlies the pattern of the second channel over a substantial active area of the sheet. This allows the channels to be formed with combined depths that exceed the total plate thickness, thereby increasing fluid flow volumes.
申请公布号
WO03041199(A2)
申请公布日期
2003.05.15
申请号
WO2002GB04483
申请日期
2002.10.03
申请人
INTELLIGENT ENERGY LIMITED;HOOD, PETER, DAVID;MITCHELL, PHILIP, JOHN;ADCOCK, PAUL, LEONARD;FOSTER, SIMON, EDWARD
发明人
HOOD, PETER, DAVID;MITCHELL, PHILIP, JOHN;ADCOCK, PAUL, LEONARD;FOSTER, SIMON, EDWARD