Polymer electrolytic fuel cell
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IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0088302
(2002-03-18)
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우선권정보 |
JP-0292025 (1999-10-14) |
국제출원번호 |
PCT/JP00/07036
(2000-10-10)
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국제공개번호 |
WO01/28018
(2001-04-19)
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발명자
/ 주소 |
- Hori, Yoshihiro
- Yonamine, Takeshi
- Sakai, Osamu
- Hosaka, Masato
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출원인 / 주소 |
- Matsushita Electric Industrial Co., Ltd.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
2 |
초록
▼
A polymer electrolyte fuel cell including a hydrogen-ion-conductive polymer electrolyte membrane, a pair of electrodes sandwiching the membrane, a conductive separator plate having a gas passage for supplying a fuel to one of the electrodes, and a conductive separator plate having a gas passage for
A polymer electrolyte fuel cell including a hydrogen-ion-conductive polymer electrolyte membrane, a pair of electrodes sandwiching the membrane, a conductive separator plate having a gas passage for supplying a fuel to one of the electrodes, and a conductive separator plate having a gas passage for supplying an oxidant to the other electrode. The metallic conductive separator plate is a type in which a conductive coat including conductive particles and glass is formed on a surface having a gas passage. As a result, the corrosion of the metallic plate is suppressed and the degradation of the power generation efficiency after extended use is also suppressed.
대표청구항
▼
1. A polymer electrolyte fuel cell comprising: a hydrogen-ion-conductive-polymer electrolyte membrane; a pair of electrodes sandwiching said hydrogen-ion-conductive polymer electrolyte membrane; a first conductive separator plate having a gas passage for supplying a fuel to one of said electrodes; a
1. A polymer electrolyte fuel cell comprising: a hydrogen-ion-conductive-polymer electrolyte membrane; a pair of electrodes sandwiching said hydrogen-ion-conductive polymer electrolyte membrane; a first conductive separator plate having a gas passage for supplying a fuel to one of said electrodes; and a second conductive separator plate having a gas passage for supplying an oxidant to the other electrodes, characterized in that each of said first and second conductive separators is formed of a metallic plate with a conductive coat comprising conductive particles and glass, formed on a surface having said passage. 2. The polymer electrolyte fuel cell as set forth in claim 1, wherein said conductive coat has a thickness in the range of 3 to 20 um. 3. The polymer electrolyte fuel cell as set forth in claim 1, wherein said metallic plate is stainless steel. 4. The A polymer electrolyte fuel cell comprising: a hydrogen-ion-conductive polymer electrolyte membrane; a pair of electrodes sandwiching said hydrogen-ion-conductive polymer electrolyte membrane; a first conductive separator plate having a gas passage for supplying a fuel to one of said electrodes; and a second conductive separator plate having a gas passage for supplying an oxidant to the other electrodes, characterized in that each of said first and second conductive separators is formed of a metallic plate with a conductive coat comprising conductive particles and glass, formed on a surface having said passage, wherein the glass forming said conductive coat is a low-alkali glass. 5. The polymer electrolyte fuel cell as set forth in claim 4, wherein said conductive particles are selected from the group consisting of Au, Pt, Rh, Pd, TiN, ZrN, TaN, TiC, WC, ZrC and RuO2. 6. The polymer electrolyte fuel cell as set forth in claim 4, wherein said conductive coat is composed to 50 to 90 wt % of low-alkali glass and 10 to 50 wt % of conductive particles. 7. The polymer electrolyte fuel cell as set forth in claim 4, wherein said conductive coat has a thickness in the range of 3 to 20 um. 8. The polymer electrolyte fuel cell as set forth in claim 4, wherein said metallic plate is stainless steel. 9. The A polymer electrolyte fuel cell comprising: a hydrogen-ion-conductive polymer electrolyte membrane; a pair of electrodes sandwiching said hydrogen-ion-conductive polymer electrolyte membrane; a first conductive separator plate having a gas passage for supplying a fuel to one of said electrodes; and a second conductive separator plate having a gas passage for supplying an oxidant to the other electrodes, characterized in that each of said first and second conductive separators is formed of a metallic plate with a conductive coat comprising conductive particles and glass, formed on a surface having said passage, wherein said glass forming said conductive coat is low-alkali glass, and wherein said low-alkali glass is composed of 35 to 50 wt % of PbO, 40 to 50 wt % of SiO2,10 to 15 wt % of B2O3,and 5 to 10 wt % of Al2O3. 10. The polymer electrolyte fuel cell as set forth in claim 9, wherein said conductive coat has a thickness in the range of 3 to 20 um. 11. The polymer electrolyte fuel cell as set forth in claim 9, wherein said metallic plate is stainless steel.
이 특허에 인용된 특허 (2)
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Quadakkers Willem,NLX ; Baumanns Ferdinand,DEX ; Nickel Hubertus,DEX, Metallic bipolar plate for high-temperature fuel cells and method of making same.
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Tozawa Takeshi (Kanagawa JPX) Toshima Nobuhito (Kanagawa JPX), Polymer electrolyte electrochemical cell and process of preparing same.
이 특허를 인용한 특허 (2)
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Hase,Nobuhiro; Hatoh,Kazuhito; Kusakabe,Hiroki; Ohara,Hideo; Kobayashi,Susumu; Shibata,Soichi; Takeguchi,Shinsuke, Polymer electrolyte fuel cell having improved current collector plates and method of forming the same.
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Jeon, Yoo Taek; Chung, Kyeong Woo; Myung, Hyun Sik; Yun, Yong Sik; Park, Jong In; Kim, Eun Young, Stainless steel separator for fuel cell having M/MNx and MOyNz layer and method for manufacturing the same.
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