Reversal tolerant membrane electrode assembly for a fuel cell

US8968960B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8968960-B2
Application numberUS-201013143372-A
CountryUS
Kind codeB2
Filing dateJan 8, 2010
Priority dateJan 8, 2009
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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Abstract

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Ruthenium or a Ruthenium compound is applied to an anode structure according to a predetermined pattern, with only part of the anode active area containing Ru. The parts of the MEA that do not contain Ru are not expected to suffer degradation from Ru cross-over, so that overall degradation of the cell will be diminished. Having less precious metals will also translate into less cost.

First claim

Opening claim text (preview).

What is claimed is: 1. A reversal tolerant anode for a fuel cell which comprises an oxygen evolution reaction catalyst disposed in selected areas of the anode, with only part of the anode structure containing the oxygen evolution reaction catalyst, wherein the selected areas are provided to the surface of the anode according to a predetermined pattern, wherein the predetermined pattern comprises that the selected areas are larger in size the narrower to the anode outlet they are…

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What does patent US8968960B2 cover?
Ruthenium or a Ruthenium compound is applied to an anode structure according to a predetermined pattern, with only part of the anode active area containing Ru. The parts of the MEA that do not contain Ru are not expected to suffer degradation from Ru cross-over, so that overall degradation of the cell will be diminished. Having less precious metals will also translate into less cost.
Who is the assignee on this patent?
Zhang Hao, Haas Herwig, Leow Andrew, and 4 more
What technology area does this patent fall under?
Primary CPC classification H01M8/1004. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 03 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).