Method of producing membrane electrode units for pem fuel cells

Details Method of producing membrane electrode units for pem fuel cells Method of producing membrane electrode units for pem fuel cells

H - Electricity

01

M

H01M 8/10 (2006.01) C25B 9/10 (2006.01) H01M 4/88 (2006.01)

Patent

CA 2266868

The invention concerns a method wherein membrane electrode units for fuel cells are produced in a continuous and automatable process. A web of polymer membrane is initially drawn through a bath containing a salt solution of the electrode material so that the web has a salt crust or film on both sides, and the salt adhering is then reduced in a stream of gas or in another bath.

L'invention concerne un procédé selon lequel des unités à membrane et électrodes pour piles à combustible sont produites en continu et de façon pouvant être automatisée. Une bande constituée d'une membrane polymère est tout d'abord tirée à travers un bain contenant une solution saline du matériau d'électrode, de sorte que la bande est recouverte, sur ces deux côtés, d'une croûte ou d'un film de sel, puis le sel adhérant à ladite bande est réduit dans un courant de gaz ou dans un autre bain.

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