Membrane/electrode assembly for polymer electrolyte fuel cells and polymer electrolyte fuel cell

US9118043B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9118043-B2
Application numberUS-40851909-A
CountryUS
Kind codeB2
Filing dateMar 20, 2009
Priority dateMar 21, 2008
Publication dateAug 25, 2015
Grant dateAug 25, 2015

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Abstract

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To provide a membrane/electrode assembly for polymer electrolyte fuel cells, which is capable of providing high power generation performance even under a low humidity condition and has sufficient mechanical strength and dimensional stability, and which has an excellent durability even in an environment where moistening and drying are repeated, and a polymer electrolyte fuel cell which is capable of providing high power generation performance even under a low humidity condition. A membrane/electrode assembly 10 is used, which comprises a cathode 20 having a catalyst layer 22 , an anode 30 having a catalyst layer 32 , and a polymer electrolyte membrane 40 interposed between the catalyst layer 22 of the cathode 20 and the catalyst layer 32 of the anode 30 , wherein at least one of the cathode 20 and the anode 30 further has a reinforcing layer 26 comprising a porous sheet-form reinforcing material made of a polymer, and an electrically conductive fiber.

First claim

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What is claimed is: 1. A membrane/electrode assembly for polymer electrolyte fuel cells, which comprises a cathode having a catalyst layer, an anode having a catalyst layer, and a polymer electrolyte membrane interposed between the catalyst layer of the cathode and the catalyst layer of the anode, wherein at least one of the cathode and the anode further has a reinforcing layer comprising a porous sheet-form reinforcing material made of a polymer, and an electrically conductive fib…

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What does patent US9118043B2 cover?
To provide a membrane/electrode assembly for polymer electrolyte fuel cells, which is capable of providing high power generation performance even under a low humidity condition and has sufficient mechanical strength and dimensional stability, and which has an excellent durability even in an environment where moistening and drying are repeated, and a polymer electrolyte fuel cell which is capabl…
Who is the assignee on this patent?
Kinoshita Shinji, Asahi Glass Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01M8/0273. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 25 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).