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Title: Water and heat management in solid polymer fuel cell stack

Abstract

A stack of solid polymer fuel cells is described, the stack comprising: (a) a plurability of fuel cells stacked one atop the other and each comprising a solid polymer electrolyte membrane; a hydrogen flow field plate on an anode side of the membrane and an oxygen flow field plate on a cathode side of the membrane, each of the oxygen flow field plate being permeable to water flow; (b) porous gas sealing plate means forming a water filled barrier to reactant gas passage, the barrier surrounding each of the oxygen flow field plates and abutting marginal edges of the latter; (c) the oxygen flow field plates being operable to remove water from a surface of porous carbonized wetproofed paper sheets abutting the cathode surface of the membranes, and being operable by reason of oxygen reactant pressure to pass the removed water into the porous gas sealing plate means; and (d) water passageway means in the stack communicating with all of the porous gas sealing plate means and operable to duct water from the porous gas sealing plate means to an end of the stack for removal therefrom.

Inventors:
Publication Date:
OSTI Identifier:
6055580
Patent Number(s):
US 4826742
Assignee:
International Fuel Cells Corp., South Windsor, CT
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 26 May 1988
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; FUEL CELLS; SOLID ELECTROLYTES; DESIGN; ELECTRODES; POLYMERS; TEMPERATURE CONTROL; WATER; CONTROL; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ELECTROLYTES; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; 300503* - Fuel Cells- Materials, Components, & Auxiliaries; 300501 - Fuel Cells- Design & Development

Citation Formats

Reiser, C A. Water and heat management in solid polymer fuel cell stack. United States: N. p., 1989. Web.
Reiser, C A. Water and heat management in solid polymer fuel cell stack. United States.
Reiser, C A. Tue . "Water and heat management in solid polymer fuel cell stack". United States.
@article{osti_6055580,
title = {Water and heat management in solid polymer fuel cell stack},
author = {Reiser, C A},
abstractNote = {A stack of solid polymer fuel cells is described, the stack comprising: (a) a plurability of fuel cells stacked one atop the other and each comprising a solid polymer electrolyte membrane; a hydrogen flow field plate on an anode side of the membrane and an oxygen flow field plate on a cathode side of the membrane, each of the oxygen flow field plate being permeable to water flow; (b) porous gas sealing plate means forming a water filled barrier to reactant gas passage, the barrier surrounding each of the oxygen flow field plates and abutting marginal edges of the latter; (c) the oxygen flow field plates being operable to remove water from a surface of porous carbonized wetproofed paper sheets abutting the cathode surface of the membranes, and being operable by reason of oxygen reactant pressure to pass the removed water into the porous gas sealing plate means; and (d) water passageway means in the stack communicating with all of the porous gas sealing plate means and operable to duct water from the porous gas sealing plate means to an end of the stack for removal therefrom.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {5}
}