Electrode substrate for electrochemical cells based on...

Details Electrode substrate for electrochemical cells based on... Electrode substrate for electrochemical cells based on...

H - Electricity

01

M

H01M 4/96 (2006.01) D04H 1/46 (2006.01) H01M 4/86 (2006.01) H01M 8/02 (2006.01) H01M 4/90 (2006.01)

Patent

CA 2343246

This invention relates to electrode substrates for electrochemical cells, particularly low-temperature fuel cells, and processes for their production. Graphitised fiber web structures are used that have a preferred non-planar fiber alignment resulting in high through-plane conductivity e.g. more than 1 Siemens/cm. These structures are further impregnated and processed to adjust the final product properties.

L'invention concerne des substrats d'électrode pour piles électrochimiques, en particulier des piles à combustible basse température, ainsi que des procédés pour leur fabrication. On utilise des structures de bandes fibreuses graphitiques, présentant de préférence un alignement de fibres non planaire fournissant une conductivité en plan de transfert élevée, par exemple, supérieure à 1 siemens/cm. Ces structures sont ensuite imprégnées et traitées de manière à ajuster les propriétés finales du produit.

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