Title: Electrochemical device comprising thin porous metal sheet

Abstract

Electrochemical device using thin micro-porous metal sheets. The porous metal sheet may have a thickness less than 200 μm, provides three-dimensional networked pore structures of pore sizes in the range of 2.0 nm to 5.0 μm, and is electrically conductive. The micro-porous metal sheet is used for positively and/or negatively-charged electrodes by providing large specific contact surface area of reactants/electron. Nano-sized catalyst or features can be added inside pores of the porous metal sheet of pore sizes at sub- and micrometer scale to enhance the reaction activity and capacity. Micro-porous ceramic materials may be coated on the porous metal sheet at a thickness of less than 40 μm to enhance the functionality of the porous metal sheet and may function as a membrane separator. The electrochemical device may be used for decomposing molecules and for synthesis of molecules such as synthesis of ammonia from water and nitrogen molecules.

Inventors:

Liu, Wei

Issue Date:

Tue Feb 15 00:00:00 EST 2022

Research Org.:

Molecule Works Inc., Richland, WA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1892611

Patent Number(s):

11248303

Application Number:

16/398,468

Assignee:

Molecule Works Inc. (Richland, WA)

Patent Classifications (CPCs):

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

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS

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

C25B1/00 - Electrolytic production of inorganic compounds or non-metals
C25B1/04 - by electrolysis of water
C25B13/02 - characterised by form or shape
C25B13/04 - characterised by the material

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS

H01G11/26 - characterised by the structures of the electrodes, e.g. multi-layered, shapes, dimensions, porosities or surface features
H01G11/46 - Metal oxides, e.g. ruthenium oxide
H01G11/70 - characterised by their structures
H01G9/02 - Diaphragms
H01G9/042 - characterised by the material
H01G9/052 - Sintered electrodes

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

H01M10/00 - Secondary cells
H01M4/626 - {Metals}
H01M4/661 - {Metal or alloys, e.g. alloy coatings
H01M4/762 - {Porous or perforated metallic containers}
H01M4/8621 - {containing only metallic or ceramic material, e.g. made by sintering or sputtering}
H01M4/8657 - {layered}
H01M4/8663 - {Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers}
H01M4/90 - Selection of catalytic material
H01M4/9041 - {Metals or alloys
H01M8/0232 - Metals or alloys
H01M8/0236 - Glass
H01M8/10 - Fuel cells with solid electrolytes
H01M8/1004 - characterised by membrane-electrode assemblies [MEA]

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

Y02E60/10 - Energy storage
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

Y02P20/133 - Renewable energy sources

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DOE Contract Number:  

AR0000816

Resource Type:

Patent

Resource Relation:

Patent File Date: 04/30/2019

Country of Publication:

United States

Language:

English