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Formation and characterization of crosslinked membranes for alkaline fuel cells

✍ Scribed by C. Sollogoub; A. Guinault; C. Bonnebat; M. Bennjima; L. Akrour; J.F. Fauvarque; L. Ogier

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
772 KB
Volume
335
Category
Article
ISSN
0376-7388

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✦ Synopsis

An anion-exchange membrane was developed using a poly(epichlorhydrin) as matrix. In order to ensure anionic conduction properties, two cyclic diamines were incorporated into the matrix: 1,4diazabicyclo-[2,2,2]-octane (DABCO) and 1-azabicyclo-[2,2,2]-octane (Quinuclidine). The membrane was then consolidated by thermal or photochemical crosslinking. Our work consisted first in optimizing the membrane formation. A characterization of the membrane by DMTA analysis was used as a tool for optimization. The electrochemical performances of the membrane were evaluated, mainly ionic conductivity and transport number. Then an alkaline laboratory fuel cell using the membrane was assembled, with performances reaching nearly 100 mW/cm 2 at room temperature. With a view to a future industrialization of the membrane formation, a laboratory scale equipment for the coating of the membrane solution on a support was proposed.

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