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MembrAnEs for STationary application with RObust mechanical properties

Objective

Low equivalent weight ionomers are required to reach the membrane conductivity and MEA performance targets for stationary operation and enable stationary PEMFC systems to achieve superior overall system yield to competitive technologies. Perfluorosulfonic acid ionomers (PFSA) demonstrate excellent properties in terms of chemical resistance in a fuel cell environment. In stationary applications, where the situation of deep MEA dehydration and frequent open circuit voltage events can be reasonably avoided, (this is not true in automotive applications) the most relevant failure mode in extended life time operation is associated with membrane mechanical failure. The use of a pre-formed inert support for mechanical stabilisation within the membrane has the drawback of reducing membrane specific conductivity, and this frequently imposes a reduction in membrane thickness to very low values. The objective of this proposal is to improve the mechanical properties of low equivalent weight state of the art perfluorosulfonic acid membranes using chemical, thermal, and processing and filler reinforcement methodologies by maintaining high proton conductivity. The baseline product for further development is the short side chain perfluoroionomer that already shows the best combination between ionic conductivity and mechanical stability. Stabilised membranes will be comprehensively characterised for their ex situ properties and screened and selected membranes will be integrated into MEAs and validation by evaluating single cell performance and durability under conditions relevant for stationary operation and comparison with those of reference membrane materials and MEAs, including the development and application of accelerated stress testing. In the final phase of the project the most promising membranes will be tested in a 4000 h durability test, simulating 10% of the expected lifetime of a stationary system to have a realistic projection of the expected degradation at 40,000 h.

Field of science

  • /engineering and technology/environmental engineering/energy and fuels/fuel cell

Call for proposal

FCH-JU-2009-1
See other projects for this call

Funding Scheme

JTI-CP-FCH - Joint Technology Initiatives - Collaborative Project (FCH)

Coordinator

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Address
Rue Michel Ange 3
75794 Paris
France
Activity type
Research Organisations
EU contribution
€ 319 511
Administrative Contact
Jocelyn Mere (Dr.)

Participants (4)

SOLVAY SPECIALTY POLYMERS ITALY SPA
Italy
EU contribution
€ 410 142
Address
Viale Lombardia 20
20021 Bollate Mi
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Stefano Conti (Dr.)
JOHNSON MATTHEY FUEL CELLS LIMITED
United Kingdom
Address
Farringdon Street 25
EC4A 4AB London
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Graham Hards (Mr.)
UNIVERSITA DEGLI STUDI DI PERUGIA
Italy
EU contribution
€ 242 288
Address
Piazza Dell Universita 1
06123 Perugia
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Mario Casciola (Prof.)
PRETEXO
France
EU contribution
€ 68 108
Address
58 Avenue D'occitanie Bat J2 Apt 193
34090 Montpellier
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Nathalie Cros (Dr.)