Gas diffusion electrode and method of making the same

Details Gas diffusion electrode and method of making the same Gas diffusion electrode and method of making the same

2004-12-20

2009-12-08

Vo, Hai (Department: 1794)

Chemistry: electrical current producing apparatus, product, and

Having earth feature

C429S047000, C429S047000, C428S408000, C428S316600, C428S311110

Reexamination Certificate

active

07629071

ABSTRACT:
A gas diffusion electrode and method of making the same. According to one embodiment, the electrode comprises a support layer, a first cushioning layer positioned on top of the support layer, a second cushioning layer positioned on top of the first cushioning layer, and a catalyst layer positioned on top of the second cushioning layer. The support layer is a mechanically stable, electrically-conductive, gas porous substrate, such as carbon fiber paper. The first cushioning layer, which is also gas porous, comprises a non-woven mat of electrically-conductive, chemically-inert fibers, preferably carbon nanofibers, bound together with a polymeric binder, such as polytetrafluoroethylene. The second cushioning layer is similar to the first cushioning layer, except that carbon black or a similar electrically-conductive, chemically-inert particulate material is included in addition to or instead of the fibrous material for the purpose of fine-tuning pore size.

REFERENCES:
patent: 4851304 (1989-07-01), Miwa et al.
patent: 4885217 (1989-12-01), Hoge
patent: 5242765 (1993-09-01), Naimer et al.
patent: 5595801 (1997-01-01), Fahy et al.
patent: 5998057 (1999-12-01), Koschany et al.
patent: 6010606 (2000-01-01), Denton et al.
patent: 6099965 (2000-08-01), Tennent et al.
patent: 6103077 (2000-08-01), DeMarinis et al.
patent: 6110417 (2000-08-01), Sugikawa
patent: 6451470 (2002-09-01), Koschany et al.
patent: 6666961 (2003-12-01), Skoczylas et al.
patent: 6713034 (2004-03-01), Nakamura et al.
patent: 7455925 (2008-11-01), McLean et al.
patent: 2003/0134179 (2003-07-01), Gascoyne et al.
patent: 2004/0045816 (2004-03-01), Masel et al.
patent: WO 01/56103 (2001-08-01), None

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