Electrolyte matrix in a molten carbonate fuel cell stack
Abstract
A fuel cell stack is disclosed with modified electrolyte matrices for limiting the electrolytic pumping and electrolyte migration along the stack external surfaces. Each of the matrices includes marginal portions at the stack face of substantially greater pore size than that of the central body of the matrix. Consequently, these marginal portions have insufficient electrolyte fill to support pumping or wicking of electrolyte from the center of the stack of the face surfaces in contact with the vertical seals. Various configurations of the marginal portions include a complete perimeter, opposite edge portions corresponding to the air plenums and tab size portions corresponding to the manifold seal locations. These margins will substantially limit the migration of electrolyte to and along the porous manifold seals during operation of the electrochemical cell stack.
- Inventors:
-
- Glastonbury, CT
- Issue Date:
- Research Org.:
- International Fuel Cells Corp
- OSTI Identifier:
- 866225
- Patent Number(s):
- 4659635
- Application Number:
- 06/867,123
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- AC01-79ET15440
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- electrolyte; matrix; molten; carbonate; fuel; cell; stack; disclosed; modified; matrices; limiting; electrolytic; pumping; migration; external; surfaces; marginal; portions; substantially; pore; size; central; consequently; insufficient; fill; support; wicking; center; contact; vertical; seals; various; configurations; complete; perimeter; opposite; edge; corresponding; air; plenums; tab; manifold; seal; locations; margins; limit; porous; operation; electrochemical; manifold seal; edge portions; fuel cell; external surface; cell stack; electrochemical cell; pore size; carbonate fuel; molten carbonate; edge portion; electrolyte matrix; opposite edge; electrolyte fill; electrolyte migration; external surfaces; seal location; electrolyte matrices; various configuration; /429/
Citation Formats
Reiser, Carl A, and Maricle, Donald L. Electrolyte matrix in a molten carbonate fuel cell stack. United States: N. p., 1987.
Web.
Reiser, Carl A, & Maricle, Donald L. Electrolyte matrix in a molten carbonate fuel cell stack. United States.
Reiser, Carl A, and Maricle, Donald L. Tue .
"Electrolyte matrix in a molten carbonate fuel cell stack". United States. https://www.osti.gov/servlets/purl/866225.
@article{osti_866225,
title = {Electrolyte matrix in a molten carbonate fuel cell stack},
author = {Reiser, Carl A and Maricle, Donald L},
abstractNote = {A fuel cell stack is disclosed with modified electrolyte matrices for limiting the electrolytic pumping and electrolyte migration along the stack external surfaces. Each of the matrices includes marginal portions at the stack face of substantially greater pore size than that of the central body of the matrix. Consequently, these marginal portions have insufficient electrolyte fill to support pumping or wicking of electrolyte from the center of the stack of the face surfaces in contact with the vertical seals. Various configurations of the marginal portions include a complete perimeter, opposite edge portions corresponding to the air plenums and tab size portions corresponding to the manifold seal locations. These margins will substantially limit the migration of electrolyte to and along the porous manifold seals during operation of the electrochemical cell stack.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 21 00:00:00 EDT 1987},
month = {Tue Apr 21 00:00:00 EDT 1987}
}