Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Grouping of fuel cells into stack or module
Reexamination Certificate
2011-03-08
2011-03-08
Ruddock, Ula C (Department: 1729)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Grouping of fuel cells into stack or module
C429S414000, C429S456000
Reexamination Certificate
active
07901826
ABSTRACT:
An oxygen-containing gas flow field is formed on a surface of a first metal separator. The oxygen-containing gas flow field is connected between an oxygen-containing gas supply passage and an oxygen-containing gas discharge passage. The oxygen-containing gas flow field comprises oxygen-containing gas flow grooves, and ends of the oxygen-containing gas flow grooves are extended outwardly beyond ends of electrode catalyst layer of a membrane electrode assembly, and connected to an inlet buffer and an outlet buffer. When the purging process is performed at the time of stopping operation of the fuel cell, the purging air supplied to the oxygen-containing gas flow field discharges water retained in the electrode catalyst layers from the ends to the outlet buffer.
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Jinba Ryo
Koshinuma Minoru
Mitsuta Naoki
Honda Motor Co. Ltd.
Laurentano, Esq. Anthony A.
Marks Jacob
Nelson Mullins Riley & Scarborough LLP
Ruddock Ula C
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