Title: Chromate based ceramic anode materials for solid oxide fuel cells

Abstract

The disclosure relates to solid oxide fuel cell (SOFC) anode materials that comprise various compositions of chromate based oxide materials. These materials offer high conductivity achievable at intermediate and low temperatures and can be used to prepare the anode layer of a SOFC. A method of making a low- or intermediate-temperature SOFC having an anode layer comprising a chromate based oxide material is also provided.

Inventors:

Abdul Jabbar, Mohammed Hussain; Wachsman, Eric D.; Pan, Ke-Ji

Issue Date:

2022-01-18

Research Org.:

Univ. of Maryland, College Park, MD (United States)

Sponsoring Org.:

USDOE Advanced Research Projects Agency - Energy (ARPA-E)

OSTI Identifier:

1892547

Patent Number(s):

11228039

Application Number:

16/141,051

Assignee:

University of Maryland, College Park (College Park, MD)

Patent Classifications (CPCs):

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G37/14 - Chromates
C01G39/006 - {Compounds containing, besides molybdenum, two or more other elements, with the exception of oxygen or hydrogen}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2002/34 - perovskite-type
C01P2002/52 - containing elements as dopants
C01P2002/54 - one element only
C01P2002/60 - Compounds characterised by their crystallite size
C01P2002/72 - by d-values or two theta-values, e.g. as X-ray diagram
C01P2002/77 - by unit-cell parameters, atom positions or structure diagrams
C01P2004/03 - obtained by SEM
C01P2006/32 - Thermal properties
C01P2006/40 - Electric properties

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2235/3208 - Calcium oxide or oxide-forming salts thereof, e.g. lime
C04B2235/3213 - Strontium oxides or oxide-forming salts thereof
C04B2235/3224 - Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
C04B2235/3225 - Yttrium oxide or oxide-forming salts thereof
C04B2235/3227 - Lanthanum oxide or oxide-forming salts thereof
C04B2235/3251 - Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
C04B2235/3256 - Molybdenum oxides, molybdates or oxide forming salts thereof, e.g. cadmium molybdate
C04B2235/3281 - Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O
C04B2235/442 - Carbonates
C04B2235/768 - Perovskite structure ABO3
C04B35/12 - based on chromium oxide
C04B35/62675 - {characterised by the treatment temperature}
C04B35/62695 - {Granulation or pelletising

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M2004/8684 - {Negative electrodes}
H01M2008/1293 - {Fuel cells with solid oxide electrolytes}
H01M4/9033 - {Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites}

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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DOE Contract Number:  

AR0000494

Resource Type:

Patent

Resource Relation:

Patent File Date: 09/25/2018

Country of Publication:

United States

Language:

English