Fuel cell shut-down procedure including vaporization phase

US9048472B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9048472-B2
Application numberUS-21422208-A
CountryUS
Kind codeB2
Filing dateJun 16, 2008
Priority dateJun 15, 2007
Publication dateJun 2, 2015
Grant dateJun 2, 2015

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A shut-down procedure for an electricity delivery system comprising a fuel cell, the cell being fed with pure oxygen as oxidant and delivering an electrical voltage to an electrical power line. The electricity delivery system comprises a fuel gas circuit on the anode side, and a pure oxygen circuit on the cathode side. The shut-down procedure comprises the steps of an initial step during which the oxygen gas feed is interrupted, and an electrical consumption phase during which a hold current is drawn from the fuel cell until the pressure in the oxygen circuit reaches the water vapor pressure.

First claim

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The invention claimed is: 1. A shut-down procedure for an electricity delivery system comprising a fuel cell, the fuel cell being fed with pure oxygen as oxidant from a pure oxygen circuit on the cathode side and hydrogen from a fuel gas circuit on the anode side and delivering an electrical voltage to an electrical power line, the shut-down procedure comprising: an initial step during which the oxygen gas feed is interrupted; an electrical consumption phase during which a hold…

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What does patent US9048472B2 cover?
A shut-down procedure for an electricity delivery system comprising a fuel cell, the cell being fed with pure oxygen as oxidant and delivering an electrical voltage to an electrical power line. The electricity delivery system comprises a fuel gas circuit on the anode side, and a pure oxygen circuit on the cathode side. The shut-down procedure comprises the steps of an initial step during which …
Who is the assignee on this patent?
Paganelli Gino, Michelin Rech Tech
What technology area does this patent fall under?
Primary CPC classification H01M8/04395. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 02 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).