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INSIDE – In-situ Diagnostics in Water Electrolysers

Ruiu, Tiziana and Mitzel, Jens and Reissner, R. and Schulze, Mathias and Biswas, Indro and Gülzow, Erich (2016) INSIDE – In-situ Diagnostics in Water Electrolysers. 21st World Hydrogen Energy Conference 2016, 13.-16. Jun. 2016, Zaragoza, Spain.

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In this joint R&D project supported by the EU Fuel Cell and Hydrogen Joint Undertaking, an electrochemical in-situ diagnostics tool for the monitoring of locally resolved current densities in polymer electrolyte membrane fuel cells, is adapted to three different water electrolysis technologies. The developed tools allow correlating performance issues and ageing processes with local anomalies. The corresponding mechanisms are investigated with ex-situ analytics. The patented segmented printed circuit board (PCB) for the monitoring of current density distributions in PEM based fuel cells is used and steadily improved at DLR. Applications are specific degradation mechanisms and optimisation of operation parameters. The real time technology allows, e. g., to observe and mitigate local deactivation of the fuel cell due to condensing water or irreversible local ageing. It has already been adapted for the use in Redox-Flow Battery systems and is ready for the next development step. In water electrolysis, the technological boundaries are different to that of fuel cells, but similarly, there is need for systematic optimisation by locally resolved in-situ analytics and, in particular for an on-line diagnostics tool. The challenges for the adaptation of the segmented board technology to chemical and physical environment are different for each of the three involved technologies: - Alkaline water electrolysis - Proton exchange membrane based water electrolysis - Anion exchange membrane based water electrolysis For each technology, pH and chemical ambience, pressure temperature, bubble formation, and typical range of current densities hold different requirements to layout and corrosion stability. The proof of concept has already been shown in PEM based electrolysis.

Item URL in elib:https://elib.dlr.de/108076/
Document Type:Conference or Workshop Item (Poster)
Title:INSIDE – In-situ Diagnostics in Water Electrolysers
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ruiu, Tizianatiziana.ruiu (at) dlr.deUNSPECIFIED
Mitzel, JensJens.Mitzel (at) dlr.deUNSPECIFIED
Reissner, R.regine.reissner (at) dlr.deUNSPECIFIED
Schulze, Mathiasmathias.schulze (at) dlr.deUNSPECIFIED
Biswas, Indroindro.biswas (at) dlr.deUNSPECIFIED
Date:13 June 2016
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:INSIDE Water electrolysis Segmented printed circuit bord Current density distribution
Event Title:21st World Hydrogen Energy Conference 2016
Event Location:Zaragoza, Spain
Event Type:international Conference
Event Dates:13.-16. Jun. 2016
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Fuel cells
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Electrochemical Processes (Fuel Cells) (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Mitzel, Dr. Jens
Deposited On:22 Nov 2016 09:22
Last Modified:31 Jul 2019 20:05

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