Direct dimethyl ether fuel cells

Details Direct dimethyl ether fuel cells Direct dimethyl ether fuel cells

H - Electricity

01

M

H01M 8/10 (2006.01) H01M 8/04 (2006.01)

Patent

CA 2315325

Low temperature fuel cells (10), e.g. solid polymer fuel cells, can operate directly on a fuel comprising dimethyl ether with dimethyl ether being oxidized at the fuel cell anode. Being highly soluble in water, dimethyl ether can be supplied as a liquid aqueous fuel solution (20, 21). As a fuel, dimethyl ether provides similar power characteristics as methanol but typically with a greater Faradaic efficiency in liquid feed solid polymer fuel cells.

L'invention porte sur des piles à combustible (10) à basse température, par exemple à polymère solide, pouvant utiliser directement comme carburant de l'éther dimétylique qui s'oxygène sur l'anode de la pile. En raison de sa forte solubilité dans l'eau l'éther dimétylique peut être fourni sous forme de solution (20, 21) aqueuse liquide, tout en présentant un pouvoir énergétique similaire à celui du méthanol, mais avec un meilleur rendement faradique avec ce type de pile.

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