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Low Temperature Electrolysis

Electrolysis

Low temperature electrolysis (e.g. alkaline and PEM water electrolysis) facilitates compact hydrogen production, and combined with suitable storage systems, it represents a key technology that will help us realize an environmentally friendly, reliable, and affordable future energy supply. Alkaline water electrolysis uses potassium hydroxide solution as an electrolyte and catalysts are made of non noble metals.PEM electrolysis uses proton-conducting membranes as an electrolyte. PEM electrolyzers have a simple system configuration.

Scientists of the two departments Electrochemistry Electrolysis (EEL) and Process Engineering Electrolysis (VEL) are investigating electrolysis technologies of various stages of development. These include the research and development of alkaline electrolysis, PEM water electrolysis and alkaline PEM electrolysis. The focus of all activities is on the priorities of cost reduction, increasing the efficiency and improving the long-term stability. For the following competences be used within the department:

Focus EEL

Electrochemical Analysis

Electrochemical Analysis

• Electrochemical screening of materials and components: RDE, DHE, single cells, etc.
• Evaluation of gas permeability, membrane conductivity, and membrane degradation
• Physicochemical characterization of components: TEM, XRD, SEM, XPS, etc.
• Electrochemical Impedance Spectroscopy (EIS)

MEA Development

MEA Development

• Catalyst screening
• Benchmark of catalysts and membranes
• Development of catalyst inks
• Analysis of most suitable coating techniques
• Manufacturing of CCMs and MEAs in laboratory scale

MEA Manufacturing Technology

MEA Manufacturing Technology

• Process development & scale-up
• Dispersion preparation
• Coating & drying
• Assembling and joining
• Manufacturing Analysis
• Rheology & tensiometry
• Roughness & surface free energy
• Coating window
• Drying analysis

Focus VEL

Corrosion and Interactions

Corrosion and Interactions

- In situ
• Influence of operating conditions on corrosion
• Corrosion at interfaces between different materials
• Reversible and irreversible corrosion phenomena
- Ex situ
• Corrosion of catalyst and support
• Corrosion of bipolar plates
• Contact resistance of bipolar plates
• Corrosion of current collectors

Multi Phase Flow

Multi Phase Flow

• Two phase flows in porous gas diffusion layers
• Computer aided design and simulation
• Computational fluid dynamics
• Flow investigations with neutron radiation (BER II)
• Flow visualization by synchrotron radiation (BESSY II)
• Characterizing flow through porous media
• Permeability measurements with two phase flow
• Mechanical stability of porous gas diffusion layers

Stack Manufacturing and Assembling

Stack Manufacturing and Assembling

• Stamping
• Coating
• Quality control
• Robot assisted assembly
• Stacking
• Bracing
• Sealing
• Pressure tests

Stack Development

Stack Development

• Simulation aided dimensioning
• Manufacturing of pilot plant with 100 kW
• Development of safety concepts for charged operation
• Studies on optimal operating conditions
• Simulation aided analysis of the whole process chain including hydrogen drying and purification
• Heat management

System Development

System Development

• Simulation aided dimensioning
• Manufacturing of pilot plant with 100 kW
• Development of safety concepts for charged operation
• Studies on optimal operating conditions
• Simulation aided analysis of the whole process chain including hydrogen drying and purification
• Heat management

Projects

External link http://strom-zu-gas-und-waerme.de/ (Opens new window)
External link https://www.elab2.kit.edu/ (Opens new window)
External link https://www.helmholtz-berlin.de/projects/pecsys/index_en.html (Opens new window)
NeSTPEL
External link JARA PROCESS (Opens new window)
Projekt Living Lab Energy Campus (LLEC)

Team Low Temperature Electrolysis

Team Low Temperature ElectrolysisCopyright: IEK-3, Forschungszentrum Jülich


from left to right: Dr. Marcelo Carmo, Deepjyoti Borah , Richard Wegner, Dr. Meital Shviro, Saeed Sadeghi Lafmejani, Dr. Marina Shestakova, Dr. Gareth Keeley, Olha Panchenko, Fabian Scheepers ,Andreas Schulze-Lohoff, Elena Borgardt, Norbert Commerscheidt, Irene Friedrich, Michael Hehemann, Florian Berg, Walter Zwaygardt, Anne Schulz, Dr. Andreas Glüsen, Daniel Holtz, Sayed Saba, Dr. Martin Müller

Additional Information

Contact

Head of Department EEL

Dr. Marcelo Carmo
Phone: +49 2461 61-5590
Fax: +49 2461 61-7661
email: m.carmo@fz-juelich.de

> more Dr. Carmo

Head of Department VEL

Dr. Martin Müller
Phone: +49 2461 61-1859
Fax: +49 2461 61-6695
email: mar.mueller@fz-juelich.de

> more Dr. Müller


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