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Title: Solid polymer electrolyte fuel cell stack water management system

Abstract

This patent describes solid polymer furl cell stack power assembly comprising: (a) fuel cells stacked on atop another, each of the fuel cells comprising: (i) a solid polymer electrolyte membrane; (ii) means forming an anode on one face of the electrolyte membranes, and means forming a cathode of an opposite face of the electrolyte membrane; (iii) a porous anode flow field plate disposed adjacent to the anode. The anode flow field plate having a contoured surface facing the anode with grooves forming a hydrogen reactant flow field, and intervening projections disposed in contact with the anode; (iv) a porous cathode flow field plate disposed adjacent to the cathode. The cathode flow field plate having a contoured surface facing the cathode with groves forming an oxygen reactant flow field, and a plurality of intervening projections disposed in contact with the cathode; (b) with the exception of an initial cell in the stack, each of the cells in the stack having its anode flow field plate disposed back-to-back with the cathode flow field plate of an adjacent cell; (c) porous hydrophilic separator plates interposed between each of the back-to-back anode and cathode flow field plates; (d) means for admitting hydrogen into themore » hydrogen reactant flow fields.« less

Inventors:
;
Publication Date:
OSTI Identifier:
6560490
Patent Number(s):
US 4769297
Assignee:
International Fuel Cells Corp., South Windsor, CT NOV; NOV-89-039257; EDB-89-032344
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 16 Nov 1987
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; FUEL CELLS; SOLID ELECTROLYTES; ANODES; CATHODES; DESIGN; OXYGEN; POROSITY; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ELECTRODES; ELECTROLYTES; ELEMENTS; NONMETALS; 300503* - Fuel Cells- Materials, Components, & Auxiliaries

Citation Formats

Reiser, C.A., and Sawyer, R.D. Solid polymer electrolyte fuel cell stack water management system. United States: N. p., 1988. Web.
Reiser, C.A., & Sawyer, R.D. Solid polymer electrolyte fuel cell stack water management system. United States.
Reiser, C.A., and Sawyer, R.D. Tue . "Solid polymer electrolyte fuel cell stack water management system". United States.
@article{osti_6560490,
title = {Solid polymer electrolyte fuel cell stack water management system},
author = {Reiser, C.A. and Sawyer, R.D.},
abstractNote = {This patent describes solid polymer furl cell stack power assembly comprising: (a) fuel cells stacked on atop another, each of the fuel cells comprising: (i) a solid polymer electrolyte membrane; (ii) means forming an anode on one face of the electrolyte membranes, and means forming a cathode of an opposite face of the electrolyte membrane; (iii) a porous anode flow field plate disposed adjacent to the anode. The anode flow field plate having a contoured surface facing the anode with grooves forming a hydrogen reactant flow field, and intervening projections disposed in contact with the anode; (iv) a porous cathode flow field plate disposed adjacent to the cathode. The cathode flow field plate having a contoured surface facing the cathode with groves forming an oxygen reactant flow field, and a plurality of intervening projections disposed in contact with the cathode; (b) with the exception of an initial cell in the stack, each of the cells in the stack having its anode flow field plate disposed back-to-back with the cathode flow field plate of an adjacent cell; (c) porous hydrophilic separator plates interposed between each of the back-to-back anode and cathode flow field plates; (d) means for admitting hydrogen into the hydrogen reactant flow fields.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {9}
}