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Innovative Solid Oxide Electrolyser Stacks for Efficient and Reliable Hydrogen Production

Objective

The RelHy project targets the development of novel or improved, low cost materials (and the associated manufacturing process) for their integration in efficient and durable components for the next generation of electrolysers based on Solid Oxide Electrolysis Cells (SOEC). It is specifically tailored for 1) Optimisation of novel or improved cell, interconnect and sealing materials, 2) Achievement of innovative designs for SOE stacks to improve durability. As such, it is positioned as a bridge between currently good performing electrolysis cells and their efficient and reliable integration into advanced stacks to pave the way for the production of a new generation of electrolysers. To achieve these goals, the RelHy project is based on the coupled development of instrumented single repeat units and stacks and of associated simulation tools (from cell to stack scale). This mixed experimental and simulation approach will be used on several batches of materials - to give specifications for novel or improved materials and evaluate them, where special attention is paid to material compatibility (between electrodes, electrolyte, coating, interconnects and sealing). - to propose innovative designs able to overcome the present limiting parameters and to increase stack reliability, durability and performance. These material and design innovations will be validated at laboratory scale on a 25-cell stack prototype and its competitiveness will be assessed. Since the project is centered on R&D activities, the RelHy multidisciplinary European consortium is merging expertise from two university laboratories and three research centres already recognised for material development and cell production, instrumentation and testing, and modelling (DTU-Risoe, Imperial College, ECN, EIFER and CEA) and also from a fuel cell stack manufacturer that can produce electrolyser stacks (TOFC) and from an energy company (HELION) that can specify the operation conditions and assess the competitiveness of the innovative electrolyser prototype and its potential integration. The main issue addressed in the project is the simultaneous achievement of both, lifetime (degradation close to 1% for 1000 hr on single repeat units at 800°C) and efficiency (0.03 to 0.04 gH2/cm2/hr, i.e. approximately 1 A/cm2 with water utilisation >60% and a stack efficiency > 90%). These operation points and degradation values will yield an efficiency of up to 80% (LHV) at the system level with >99% availability. Cost issues will also be addressed by considering cost effective materials and processes in order to meet the “non energy” 1€/kg H2 target.

Field of science

  • /natural sciences/chemical sciences/electrochemistry/electrolysis
  • /engineering and technology/environmental engineering/energy and fuels/fuel cell

Call for proposal

FP7-ENERGY-2007-1-RTD
See other projects for this call

Funding Scheme

CP-FP - Small or medium-scale focused research project

Coordinator

COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Address
Rue Leblanc 25
75015 Paris 15
France
Activity type
Research Organisations
EU contribution
€ 659 970
Administrative Contact
Florence Lefebvre-Joud (Dr.)

Participants (6)

DANMARKS TEKNISKE UNIVERSITET
Denmark
EU contribution
€ 635 635,75
Address
Anker Engelundsvej 1 Bygning 101 A
2800 Kgs Lyngby
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Bowen Jacob (Dr.)
EIFER EUROPAISCHES INSTITUT FUR ENERGIEFORSCHUNG EDF KIT EWIV
Germany
EU contribution
€ 367 790
Address
Emmy Noether Strasse 11
76131 Karlsruhe
Activity type
Research Organisations
Administrative Contact
Antoine Aslanides (Mr.)
STICHTING ENERGIEONDERZOEK CENTRUM NEDERLAND
Netherlands
EU contribution
€ 529 638
Address
Westerduinweg 3
1755 LE Petten
Activity type
Research Organisations
Administrative Contact
Bert Rietveld (Mr.)
IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE
United Kingdom
EU contribution
€ 381 381
Address
South Kensington Campus Exhibition Road
SW7 2AZ London
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Shaun Power (Mr.)
TOPSOE FUEL CELL A/S
Denmark
EU contribution
€ 257 885,25
Address
Nymoellevej 55
2800 Lyngby
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Jens Olsen (Mr.)
AREVA STOCKAGE D'ENERGIE SAS
France
EU contribution
€ 67 496
Address
Bâtiment Jules Verne, Domaine Du Petit Arbois
13545 Aix-en-provence
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Pierre Bolenor (Mr.)