Fuel cell stack structure

Details Fuel cell stack structure Fuel cell stack structure

2007-10-30

2011-11-01

Ryan, Patrick (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Grouping of fuel cells into stack or module

C429S514000

Reexamination Certificate

active

08048586

ABSTRACT:
A fuel cell stack induces smooth current collection and liquid or gas flow without using a heavy bipolar plate. The fuel cell stack includes: a membrane and electrode assembly (MEA) in which an electrolyte membrane is disposed between a cathode electrode and an anode electrode; a current collector disposed in the MEA to form an electrical path with an adjacent MEA; and a non-conductive separation plate disposed between the MEA and the adjacent MEA, the non-conductive separation plate forming flow channels to supply a liquid or gas to the cathode electrode and the anode electrode. A fuel cell stack structure having the above structure is simple and lightweight as the MEA includes a thin and lightweight non-conductive polymer separation plate and a current collector to connect adjacent MEAs.

REFERENCES:
patent: 3896076 (1975-07-01), Watanabe et al.
patent: 4761349 (1988-08-01), McPheeters et al.
patent: 5798188 (1998-08-01), Mukohyama et al.
patent: 6255012 (2001-07-01), Wilson et al.
patent: 2006/0105220 (2006-05-01), Shu et al.
patent: 2006/0199061 (2006-09-01), Fiebig et al.
patent: 2006/0210865 (2006-09-01), Inoue
Office Action issued in corresponding Korean Patent Application No. 2006-116072 dated Sep. 20, 2007.

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