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Title: Control of electrolyte fill to fuel cell stack

Abstract

A fuel cell stack which can be operated with cells in a horizontal position so that the fuel cell stack does not have to be taken out of operation when adding an electrolyte such as an acid. Acid is supplied to each matrix in a stack of fuel cells at a uniform, low pressure so that the matrix can either be filled initially or replenished with acid lost in operation of the cell, without exceeding the bubble pressure of the matrix or the flooding pressure of the electrodes on either side of the matrix. Acid control to each cell is achieved by restricting and offsetting the opening of electrolyte fill holes in the matrix relative to openings in the plates which sandwich the matrix and electrodes therebetween.

Inventors:
 [1]
  1. Scott Township, Allegheny County, PA
Issue Date:
OSTI Identifier:
864451
Patent Number(s):
4366211
Assignee:
Westinghouse Electric Corp. (Pittsburgh, PA)
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:  
DEN3-161
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
control; electrolyte; fill; fuel; cell; stack; operated; cells; horizontal; position; operation; adding; acid; supplied; matrix; uniform; pressure; filled; initially; replenished; lost; exceeding; bubble; flooding; electrodes; achieved; restricting; offsetting; holes; relative; openings; plates; sandwich; therebetween; fuel cell; cell stack; fuel cells; horizontal position; bubble pressure; electrolyte fill; /429/

Citation Formats

Pollack, William. Control of electrolyte fill to fuel cell stack. United States: N. p., 1982. Web.
Pollack, William. Control of electrolyte fill to fuel cell stack. United States.
Pollack, William. Fri . "Control of electrolyte fill to fuel cell stack". United States. https://www.osti.gov/servlets/purl/864451.
@article{osti_864451,
title = {Control of electrolyte fill to fuel cell stack},
author = {Pollack, William},
abstractNote = {A fuel cell stack which can be operated with cells in a horizontal position so that the fuel cell stack does not have to be taken out of operation when adding an electrolyte such as an acid. Acid is supplied to each matrix in a stack of fuel cells at a uniform, low pressure so that the matrix can either be filled initially or replenished with acid lost in operation of the cell, without exceeding the bubble pressure of the matrix or the flooding pressure of the electrodes on either side of the matrix. Acid control to each cell is achieved by restricting and offsetting the opening of electrolyte fill holes in the matrix relative to openings in the plates which sandwich the matrix and electrodes therebetween.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}