Title: Copper-substituted perovskite compositions for solid oxide fuel cell cathodes and oxygen reduction electrodes in other electrochemical devices

Abstract

The present invention provides novel compositions that find advantageous use in making electrodes for electrochemical cells. Also provided are electrochemical devices that include active oxygen reduction electrodes, such as solid oxide fuel cells, sensors, pumps and the like. The compositions comprises a copper-substituted ferrite perovskite material. The invention also provides novel methods for making and using the electrode compositions and solid oxide fuel cells and solid oxide fuel cell assemblies having cathodes comprising the compositions.

Inventors:

Rieke, Peter C ^[1]; Coffey, Gregory W ^[2]; Pederson, Larry R ^[3]; Marina, Olga A ^[2]; Hardy, John S ^[2]; Singh, Prabhaker ^[2]; Thomsen, Edwin C ^[2]

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+ Show Inventor Affiliations

1. Pasco, WA
2. Richland, WA
3. Kennewick, WA

Issue Date:

2010-07-20

Research Org.:

Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

993075

Patent Number(s):

7758992

Application Number:

10/714,180

Assignee:

Battelle Memorial Institute (Richland, WA)

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

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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

H01M4/8621 - {containing only metallic or ceramic material, e.g. made by sintering or sputtering}
H01M4/8885 - {Sintering or firing}
H01M4/9016 - {Oxides, hydroxides or oxygenated metallic salts}
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}
H01M4/9066 - {of metal-ceramic composites or mixtures, e.g. cermets}

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:  

AC06-76RL01830

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

25 ENERGY STORAGE