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Title: Integrated current collector and catalyst support

Abstract

An integrated current collecting electrode for a molten carbonate fuel cell includes a corrugated metal conductive strip positioned in contact with a catalyst layer. The corrugations of the metal strip form a plurality of gas channels immediately adjacent the surface of the catalyst through which a reactant gas flows. Each channel is filled with a particulate material to maintain separation between the metal strip and the catalyst in ensuring gas channel integrity. The catalyst may be in the form of a compacted, particulate material provided the particle size of the material within the gas channels is larger than that of the catalyst particles to prevent catalyst migration to the metal conductor and provide reactant gas access to the catalyst layer. The gas channels formed by the corrugations of the metal strip are arranged in an offset pattern along the direction of gas flow for improved reactant gas distribution to the catalyst layer. The particulate material positioned within the gas flow channels may be a ceramic conductor such as a perovskite or a spinel for enhanced current collection.

Inventors:
 [1]
  1. Southwick, MA
Issue Date:
Research Org.:
INTERNATIONAL FUEL CELLS CORP
OSTI Identifier:
865649
Patent Number(s):
4548876
Application Number:
06/661,851
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC01-79ET15440
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
integrated; current; collector; catalyst; support; collecting; electrode; molten; carbonate; fuel; cell; corrugated; metal; conductive; strip; positioned; contact; layer; corrugations; form; plurality; gas; channels; immediately; adjacent; surface; reactant; flows; channel; filled; particulate; material; maintain; separation; ensuring; integrity; compacted; provided; particle; size; larger; particles; prevent; migration; conductor; provide; access; formed; arranged; offset; pattern; direction; flow; improved; distribution; ceramic; perovskite; spinel; enhanced; collection; gas channels; fuel cell; catalyst support; channels formed; catalyst layer; gas flows; metal conductor; catalyst particles; flow channels; flow channel; current collector; gas flow; particulate material; particle size; carbonate fuel; molten carbonate; reactant gas; material provided; gas distribution; immediately adjacent; metal strip; prevent catalyst; gas channel; enhanced current; current collection; current collecting; metal conductive; material positioned; metal conduct; catalyst particle; integrated current; strip form; /429/

Citation Formats

Bregoli, Lawrence J. Integrated current collector and catalyst support. United States: N. p., 1985. Web.
Bregoli, Lawrence J. Integrated current collector and catalyst support. United States.
Bregoli, Lawrence J. Tue . "Integrated current collector and catalyst support". United States. https://www.osti.gov/servlets/purl/865649.
@article{osti_865649,
title = {Integrated current collector and catalyst support},
author = {Bregoli, Lawrence J},
abstractNote = {An integrated current collecting electrode for a molten carbonate fuel cell includes a corrugated metal conductive strip positioned in contact with a catalyst layer. The corrugations of the metal strip form a plurality of gas channels immediately adjacent the surface of the catalyst through which a reactant gas flows. Each channel is filled with a particulate material to maintain separation between the metal strip and the catalyst in ensuring gas channel integrity. The catalyst may be in the form of a compacted, particulate material provided the particle size of the material within the gas channels is larger than that of the catalyst particles to prevent catalyst migration to the metal conductor and provide reactant gas access to the catalyst layer. The gas channels formed by the corrugations of the metal strip are arranged in an offset pattern along the direction of gas flow for improved reactant gas distribution to the catalyst layer. The particulate material positioned within the gas flow channels may be a ceramic conductor such as a perovskite or a spinel for enhanced current collection.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {10}
}

Patent:

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