WO2025242866 - QUALITY CONTROL OF SOC STACKS USING ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY
National phase entry is expected:
Publication Number
WO/2025/242866
Publication Date
27.11.2025
International Application No.
PCT/EP2025/064273
International Filing Date
23.05.2025
Title **
[English]
QUALITY CONTROL OF SOC STACKS USING ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY
[French]
CONTRÔLE DE QUALITÉ D'EMPILEMENTS DE SOC À L'AIDE D'UNE SPECTROSCOPIE D'IMPÉDANCE ÉLECTROCHIMIQUE
Applicants **
TOPSOE A/S
Inventors
DRASBÆK, Daniel Bovin
HEIREDAL-CLAUSEN, Thomas
RASS-HANSEN, Jeppe
SCHANDEL, Christian Bækhøj
Priority Data
PA202430263
23.05.2024
DK
Application details
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2320 | |
| EPO | Filing, Examination, Granting | 11975 | |
| Japan | Filing, Examination, Granting | 2370 | |
| South Korea | Filing, Examination, Granting | 2506 | |
| USA | Filing, Examination, Granting | 5140 |
Total:
24,311
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Abstract[English]
The present invention regards a method of performing quality control (QC) of a solid oxide cell stack, the method comprising operating the solid oxide cell stack in electrolysis mode under a fuel side QC atmosphere comprising a reducing agent and an electrolyser feed at a QC current density of below 50% of the full current load; recording an electrochemical impedance (EIS) spectrum of the stack during such operation; and then comparing the obtained spectrum with a QC reference.[French]
La présente invention concerne un procédé de réalisation d'un contrôle de qualité (QC) d'un empilement de cellules à oxyde solide, le procédé comprenant le fonctionnement de l'empilement de cellules à oxyde solide en mode électrolyse sous une atmosphère QC côté combustible comprenant un agent réducteur et une charge d'électrolyseur à une densité de courant QC inférieure à 50 % de la charge à courant total ; l'enregistrement d'un spectre d'impédance électrochimique (EIS) de l'empilement pendant ledit fonctionnement ; puis la comparaison du spectre obtenu avec une référence QC.