Method of preparing electrolyte for use in fuel cells

Title: Method of preparing electrolyte for use in fuel cells

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Abstract

An electrolyte compact for fuel cells includes a particulate support material of lithium aluminate that contains a mixture of alkali metal compounds, such as carbonates or hydroxides, as the active electrolyte material. The porous lithium aluminate support structure is formed by mixing alumina particles with a solution of lithium hydroxide and another alkali metal hydroxide, evaporating the solvent from the solution and heating to a temperature sufficient to react the lithium hydroxide with alumina to form lithium aluminate. Carbonates are formed by reacting the alkali metal hydroxides with carbon dioxide gas in an exothermic reaction which may proceed simultaneously with the formation with the lithium aluminate. The mixture of lithium aluminate and alkali metal in an electrolyte active material is pressed or otherwise processed to form the electrolyte structure for assembly into a fuel cell.

Inventors:

Kinoshita, Kimio ^[1]; Ackerman, John P ^[1]

Downers Grove, IL

Issue Date:: 1978-01-01

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

OSTI Identifier:: 863187

Patent Number(s):: 4115632

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

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/145 - {comprising carbonates}
H01M8/144 - {characterised by the electrolyte material}
H01M8/142 - {with matrix-supported or semi-solid matrix-reinforced electrolyte}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C01F7/043 - {Lithium aluminate}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/0295 - Matrices for immobilising electrolyte melts

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
Y02E60/50 - Fuel cells

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; preparing; electrolyte; fuel; cells; compact; particulate; support; material; lithium; aluminate; contains; mixture; alkali; metal; compounds; carbonates; hydroxides; active; porous; structure; formed; mixing; alumina; particles; solution; hydroxide; evaporating; solvent; heating; temperature; sufficient; react; form; reacting; carbon; dioxide; gas; exothermic; reaction; proceed; simultaneously; formation; pressed; otherwise; processed; assembly; cell; lithium hydroxide; dioxide gas; metal hydroxides; fuel cell; alumina particles; exothermic reaction; lithium aluminate; metal compound; metal compounds; active material; carbon dioxide; fuel cells; alkali metal; temperature sufficient; support structure; metal hydroxide; support material; electrolyte structure; electrolyte material; particulate support; active electrolyte; oxide gas; /429/264/423/427/

Citation Formats


                    Kinoshita, Kimio, and Ackerman, John P. Method of preparing electrolyte for use in fuel cells.  United States: N. p., 1978. 
        Web.

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                    Kinoshita, Kimio, & Ackerman, John P. Method of preparing electrolyte for use in fuel cells.  United States.

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                    Kinoshita, Kimio, and Ackerman, John P. Sun .  
        "Method of preparing electrolyte for use in fuel cells".  United States.  https://www.osti.gov/servlets/purl/863187.

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@article{osti_863187,

  title        = {Method of preparing electrolyte for use in fuel cells},

  author       = {Kinoshita, Kimio and Ackerman, John P},

  abstractNote = {An electrolyte compact for fuel cells includes a particulate support material of lithium aluminate that contains a mixture of alkali metal compounds, such as carbonates or hydroxides, as the active electrolyte material. The porous lithium aluminate support structure is formed by mixing alumina particles with a solution of lithium hydroxide and another alkali metal hydroxide, evaporating the solvent from the solution and heating to a temperature sufficient to react the lithium hydroxide with alumina to form lithium aluminate. Carbonates are formed by reacting the alkali metal hydroxides with carbon dioxide gas in an exothermic reaction which may proceed simultaneously with the formation with the lithium aluminate. The mixture of lithium aluminate and alkali metal in an electrolyte active material is pressed or otherwise processed to form the electrolyte structure for assembly into a fuel cell.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1978},

  month        = {1}

}

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