Title: Membrane electrode assembly and method of making the same

Abstract

Disclosed herein is a method of manufacturing a membrane electrode assembly (MEA) including directly depositing a liquid suspension containing a platinum precursor onto an ionically conductive membrane (e.g., proton-exchange membrane) that, when the platinum precursor deposit layer is reduced, provides a layer that will scavenge hydrogen that has diffused back through the membrane due to cell stack pressure differential.

Inventors:

Capuano, Christopher Bryce; Pertoso, Morgan Elizabeth; Danilovic, Nemanja

Issue Date:

2020-06-30

Research Org.:

Proton Energy Systems, Inc., Wallingford, CT (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1651093

Patent Number(s):

10700373

Application Number:

15/682,803

Assignee:

Proton Energy Systems, Inc. (Wallingford, CT)

Patent Classifications (CPCs):

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

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

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

C01G55/001 - {Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange}
C01G55/004 - {Oxides

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

C08F12/16 - Halogens
C08F14/18 - Monomers containing fluorine

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

C08G65/226 - {containing fluorine}
C08G65/4025 - {

C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS

C25B1/04 - by electrolysis of water
C25B11/00 - Electrodes
C25B13/08 - based on organic materials

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

H01M2008/1095 - {Fuel cells with polymeric electrolytes}
H01M4/881 - {Electrolytic membranes}
H01M4/8817 - {Treatment of supports before application of the catalytic active composition
H01M8/1004 - characterised by membrane-electrode assemblies [MEA]
H01M8/1023 - having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
H01M8/1025 - having only carbon and oxygen, e.g. polyethers, sulfonated polyetheretherketones [S-PEEK], sulfonated polysaccharides, sulfonated celluloses or sulfonated polyesters
H01M8/1027 - having carbon, oxygen and other atoms, e.g. sulfonated polyethersulfones [S-PES]
H01M8/1039 - halogenated, e.g. sulfonated polyvinylidene fluorides
H01M8/1053 - consisting of layers of polymers with at least one layer being ionically conductive
H01M8/1055 - {Inorganic layers on the polymer electrolytes, e.g. inorganic coatings}

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

Y02E60/36 - Hydrogen production from non-carbon containing sources
Y02E60/50 - Fuel cells

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P70/50 - Manufacturing or production processes characterised by the final manufactured product

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DOE Contract Number:  

SC0009213

Resource Type:

Patent

Resource Relation:

Patent File Date: 08/22/2017

Country of Publication:

United States

Language:

English

Subject:

30 DIRECT ENERGY CONVERSION; 08 HYDROGEN