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1. WO2020231708 - METHODS TO IMPROVE THE DURABILITY OF METAL-SUPPORTED SOLID OXIDE ELECTROCHEMICAL DEVICES

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Publication Number WO/2020/231708
Publication Date 19.11.2020
International Application No. PCT/US2020/031713
International Filing Date 06.05.2020
IPC
C25B 9/06 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
9Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies
06Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
CPC
C25B 1/04
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
1Electrolytic production of inorganic compounds or non-metals
01Products
02Hydrogen or oxygen
04by electrolysis of water
C25B 11/04
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
11Electrodes; Manufacture thereof not otherwise provided for
04characterised by the material
C25B 9/23
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
9Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
17Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
19with diaphragms
23comprising ion-exchange membranes in or on which electrode material is embedded
C25B 9/73
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
9Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
70Assemblies comprising two or more cells
73of the filter-press type
H01M 8/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
Applicants
  • THE REGENTS OF THE UNIVERSITY OF CALIFORNIA [US]/[US]
Inventors
  • TUCKER, Michael
  • DOGDIBEGOVIC, Emir
  • WANG, Ruofan
Agents
  • KIMES, Benjamin A.
  • PORTNOVA, Marina
Priority Data
62/846,24610.05.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHODS TO IMPROVE THE DURABILITY OF METAL-SUPPORTED SOLID OXIDE ELECTROCHEMICAL DEVICES
(FR) PROCÉDÉS DE PROLONGEMENT DE LA DURABILITÉ DE DISPOSITIFS ÉLECTROCHIMIQUES À OXYDE SOLIDE SUR SUPPORT MÉTALLIQUE
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Abstract
(EN)
This disclosure provides systems, methods, and apparatus related to metal-supported solid oxide electrochemical devices. In one aspect, a stainless steel support of a device is oxidized. A coating is deposited on an oxygen-electrode side of the stainless steel support of the device. The coating is operable to reduce chromium evaporation from the stainless steel support. A structure including an oxygen catalyst on the oxygen-electrode side of the device and a fuel catalyst on a fuel-electrode side of the stainless steel support of the device, with an electrolyte disposed between the oxygen catalyst and the fuel catalyst, is formed. The device is thermally treated at a temperature of about 10°C to 400°C above an operating temperature of about 600°C to 800°C of the device, the oxygen-electrode side of the device being in an oxidizing atmosphere and the fuel-electrode side of the device being in a reducing atmosphere.
(FR)
La présente invention concerne des systèmes, des procédés et un appareil se rapportant à des dispositifs électrochimiques à oxyde solide sur support métallique. Selon un aspect, un support en acier inoxydable d'un dispositif est oxydé. Un revêtement est déposé sur un côté électrode à oxygène du support en acier inoxydable du dispositif. Le revêtement peut être utilisé pour réduire une évaporation du chrome à partir du support en acier inoxydable. Il est formé une structure contenant un catalyseur d'oxygène sur le côté électrode à oxygène du dispositif et un catalyseur de combustible sur un côté électrode à combustible du support en acier inoxydable du dispositif, un électrolyte étant déposé entre le catalyseur d'oxygène et le catalyseur de combustible. Le dispositif est traité thermiquement à une température supérieure d'environ 10 °C à 400 °C à une température de fonctionnement d'environ 600 °C à 800 °C du dispositif, le côté électrode à oxygène du dispositif se trouvant dans une atmosphère oxydante et le côté électrode à combustible du dispositif se trouvant dans une atmosphère réductrice.
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