[특허]Electrical contact element and bipolar plate

[미국특허] Electrical contact element and bipolar plate 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-004/02
출원번호	US-0689001 (2003-10-20)
등록번호	US7968251 (2011-06-15)
우선권정보	DE-2000-00 58 337(2000-11-24)
발명자 / 주소	Vyas, Gayatri Gasteiger, Hubert A Mikhail, Youssef Busenbender, Ilona
출원인 / 주소	GM Global Technology Operations LLC
대리인 / 주소	Harness, Dickey & Pierce, P.L.C.
인용정보	피인용 횟수 : 2 인용 특허 : 22

초록 ▼

In one aspect a substrate such as a sheet metal product, in particular for use as a bipolar plate in a fuel cell or in an electrolyzer, is characterized in that it has, on at least one side, a conductive and corrosion-resistant protective coating of a metal oxide having a treatment which ensures the conductivity. The coating can be produced by introducing a piece of sheet metal into a coating plant and providing it with the conductive and corrosion-resistant protective coating of the metal oxide. In another aspect, an electrochemical cell such as a fuel cell comprises an electrically conductive contact element having a first surface facing an electrode for conducting electrical current, and the contact element comprises an electrically conductive substrate and an electrically conductive coating comprising a doped metal oxide, desirably a doped tin oxide, and preferably a fluorine doped tin oxide.

대표청구항 ▼

What is claimed is: 1. A fuel cell comprising:a solid polymer electrolyte having a permeable body containing a cation exchange membrane;an electrode in electrical communication with said electrolyte; andan electrically conductive contact element having a major working surface facing said electrode that defines a plurality of reactant gas channels separated by a plurality of lands, said electrically conductive contact element having an electrically conductive coating deposited on and contiguously covering said plurality of lands of said major working surface, wherein said electrically conductive coating includes a doped metal oxide composition which has a resistivity of less than 0.001 ohm-cm, and wherein said electrically conductive coating provides electrical conductivity between said plurality of lands and said electrode, and wherein said coating provides a protective layer on said contact element from direct contact with a reactant gas in said plurality of reactant gas channels.

이 특허에 인용된 특허 (22) 인용/피인용 타임라인 분석

Hwang Jung-Tae,KRX ; Choi Young-Tae,KRX ; Ryu Si-Yeog,KRX, Anticorrosive treatment method for a separator of molten carbonate fuel cell.
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Fitzgerald Maurice E. (Havertown PA) Braunstein David M. (Berwyn PA) Alkaitis Saulius A. (Venice CA) Pinsky Naum (Thousand Oaks CA), Battery element and battery incorporating polar polymer system.
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Rowlette John J. (Monrovia CA), Battery plate containing filler with conductive coating.
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Grosvenor Victor L. ; Pinsky Naum, Bipolar lead-acid battery plates.
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Grosvenor Victor L. ; Pinsky Naum, Bipolar lead-acid battery plates and method of making same.
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Hinton Carlos E. ; Scortichini Carey L. ; Mussell Robert D., Bipolar plates for electrochemical cells.
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Cisar Alan J. ; Murphy Oliver J., Bipolar separator plates for electrochemical cell stacks.
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Wilson Mahlon S. ; Busick Deanna N., Composite bipolar plate for electrochemical cells.
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Li Yang (Troy MI) Meng Wen-Jin (Okemos MI) Swathirajan Swathy (West Bloomfield MI) Harris Stephen J. (Bloomfield MI) Doll Gary L. (Orion Township ; Oakland County MI), Corrosion resistant PEM fuel cell.
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Li Yang ; Meng Wen-Jin ; Swathirajan Swathy ; Harris Stephen Joel ; Doll Gary Lynn, Corrosion resistant PEM fuel cell.
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Anderson Marc A. ; Liu Kuo-Chuan ; Mohr Charles M., Electrochemical capacitor.
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Mercuri Robert Angelo ; Gough Jeffrey John, Flexible graphite composite for use in the form of a fuel cell flow field plate.
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Walsh Michael M., Fuel cell assembly fluid flow plate having conductive fibers and rigidizing material therein.
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Rowlette John J. (Monrovia CA), Lightweight battery plates.
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Swathirajan Sundararajan (Troy MI) Mikhail Youssef M. (Sterling Heights MI), Membrane-electrode assemblies for electrochemical cells.
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Gordon Roy G. (22 Highland St. Cambridge MA 02138), Method of depositing electrically conductive, infra-red reflective, transparent coatings of stannic oxide.
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Lawrance Richard J. (Hampstead NH) Wood Linda D. (Andover MA), Method of making solid polymer electrolyte catalytic electrodes and electrodes made thereby.
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Jin Iljoon (Kingston CAX) Kenny Lorne D. (Inverary CAX) Sang Harry (Kingston CAX), Method of producing lightweight foamed metal.
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Tateishi Hiroshi (Yokohama JPX) Tomimatsu Norihiro (Kawasaki JPX) Nakagawa Kazuaki (Kawasaki JPX) Ozu Hideyuki (Yokahama JPX) Akasaka Yoshihiro (Yokahama JPX), Molten carbonate fuel cell.
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Mercuri Robert Angelo ; Blain David Paul ; McGlamery Joe Tom, Oxidation and corrosion resistant flexible graphite composite sheet and method.
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Gyoten,Hisaaki; Sakai,Osamu; Hatoh,Kazuhito; Niikura,Junji; Ohara,Hideo; Nishida,Kazufumi, Polymer electrolyte fuel cell.
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Koncar Gerald J. ; Marianowski Leonard G., Proton exchange membrane fuel cell separator plate.
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이 특허를 인용한 특허 (2) 인용/피인용 타임라인 분석

Kim, Jin-ho; Song, Tae-won; Kim, Ji-rae; Ko, Jeong-sik, Fluid tube increasing uniformity of fluid flow and apparatus including the same.
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Bai, Ching-Yuan; Wu, Min-Sheng; Ger, Ming-Der, Method for preparing surface modification coating of metal bipolar plates.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Electrical contact element and bipolar plate 원문보기