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Application filed by Honeywell Int IncfiledCriticalHoneywell Int Inc
Priority to MYPI20023015priorityCriticalpatent/MY128763A/en
Publication of MY128763ApublicationCriticalpatent/MY128763A/en
IN A HYDROGEN GAS FUEL CELL A POLYMER ELECTROLYTE MEMBRANE (17), OR "PEM", IS LOCATED BETWEEN TWO LAYERS (21, 29) COMPOSED OF A CATALYST MATERIAL SUCH THAT A SANDWICH-LIKE ASSEMBLY IS FORMED. AN ANODE ELECTRODE (23) AND A CATHODE ELECTRODE (31), EACH COMPOSED OF A THIN SHEET OF POROUS MATERIAL THAT IS PERMEABLE TO LIQUID AND GAS, ARE SITUATED ON EITHER SIDE OF THE SANDWICH-LIKE ASSEMBLY SUCH THAT ONE SURFACE OF EACH ELECTRODE ABUTS A CATALYST LAYER. THE REMAINING SURFACE OF EACH ELECTRODE ABUTS A CONDUCTIVE NONPOROUS BIPOLAR PLATE (42, 46) HAVING GROOVES CUT THEREIN. WICKING STRANDS (13, 15) COMPOSED OF A TRILOBED FIBER ARE LOCATED IN BETWEEN EACH CATALYST LAYER AND THE ADJACENT PEM, AND ARRANGED IN A REPETITIVE PATTERN SUCH THAT THE STRANDS DO NOT CROSS OVER EACH OTHER. EACH WICKING STRAND ABUTTING THE PEM SURFACE FACING THE ANODE ELECTRODE HAS ONE END SITUATED IN A RESERVOIR OF LIQUID WATER. EACH WICKING STRAND ABUTTING THE PEM SURFACE FACING THE CATHODE ELECTRODE DRAINS INTO AN EXHAUST RESERVOIR.(FIG 2)
MYPI200230152002-08-142002-08-14Wicking strands for a polymer electrolyte membrane
MY128763A
(en)