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
2011-01-18
2011-01-18
Alejandro, Raymond (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Grouping of fuel cells into stack or module
C429S456000, C429S457000, C429S514000
Reexamination Certificate
active
07871733
ABSTRACT:
In a fuel cell structure having an assembly of an electrolyte layer and an electrode formed on the electrolyte layer, a gas separator25is laminated on the electrolyte layer and the electrode and forms, in combination with the electrode, a gas flow path to make a flow of a reactive gas that is subjected to an electrochemical reaction. A first water guide element is provided between the electrode and the gas separator25and is arranged to enable migration of water from and to the electrode and to continuously guide water in an electrode plane direction. A gas outlet68is open at one end of the gas flow path to be at least partly overlapped with one end of the first water guide element and discharges the flow of the reactive gas from the gas flow path. The gas outlet68is designed to have a higher flow resistance of the reactive gas than a flow resistance in the gas flow path. This arrangement effectively improves the water discharge efficiency from the gas flow path formed in the fuel cell structure.
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patent: 2005/0112353 (2005-05-01), Harada et al.
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Ando Masaki
Ikeda Kotaro
Alejandro Raymond
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Toyota Jidosha & Kabushiki Kaisha
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