Method of making a membrane electrode assembly

Details Method of making a membrane electrode assembly Method of making a membrane electrode assembly

2006-12-29

2009-12-01

Mayes, Melvin C (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Making catalytic electrode, process only

C156S263000

Reexamination Certificate

active

07625833

ABSTRACT:
A method of making a five-layer membrane electrode assembly is provided which includes the steps of: providing a catalyst coated membrane web; providing a laminating station wherein the catalyst coated membrane web is drawn between a pair of laminating rollers which form a laminating nip; die-cutting first and second webs of gas diffusion layer material to make first and second gas diffusion layers; feeding first and second gas diffusion layers into the laminating nip adjacent to the catalyst coated membrane web; and laminating the first gas diffusion layer, catalyst coated membrane web and second gas diffusion layer to form a laminate.

REFERENCES:
patent: 6197147 (2001-03-01), Bonsel et al.
patent: 7087339 (2006-08-01), Wald et al.
patent: 2003/0191021 (2003-10-01), Ripley et al.
patent: 2003/0224233 (2003-12-01), Kohler et al.
patent: 2005/0263246 (2005-12-01), Yandrasits et al.
patent: WO 2005/011041 (2005-02-01), None

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