IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0979822
(2001-11-26)
|
국제출원번호 |
PCT/JP99/02897
(1999-05-31)
|
국제공개번호 |
WO00/74159
(2000-12-07)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Central Research Institute of Electric Power Industry
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
5 |
초록
▼
The strength of a cell stack is improved, and processing of components is facilitated to decrease the processing cost. Further, an output characteristic is enhanced, and the material cost is reduced. A single cell1includes a fuel electrode (porous fuel electrode substrate)2consisting of a porous sub
The strength of a cell stack is improved, and processing of components is facilitated to decrease the processing cost. Further, an output characteristic is enhanced, and the material cost is reduced. A single cell1includes a fuel electrode (porous fuel electrode substrate)2consisting of a porous substrate, an electrolyte film3formed on one of a front surface and a back surface of the porous fuel electrode substrate2,an air electrode film4formed on the electrolyte film3,a separator film5formed on the other surface of the porous fuel electrode substrate2,and a porous air electrode substrate6jointed to the air electrode film4.A stack14is formed by laminating these single cells1and attaching manifold plates11on side surfaces.
대표청구항
▼
The strength of a cell stack is improved, and processing of components is facilitated to decrease the processing cost. Further, an output characteristic is enhanced, and the material cost is reduced. A single cell1includes a fuel electrode (porous fuel electrode substrate)2consisting of a porous sub
The strength of a cell stack is improved, and processing of components is facilitated to decrease the processing cost. Further, an output characteristic is enhanced, and the material cost is reduced. A single cell1includes a fuel electrode (porous fuel electrode substrate)2consisting of a porous substrate, an electrolyte film3formed on one of a front surface and a back surface of the porous fuel electrode substrate2,an air electrode film4formed on the electrolyte film3,a separator film5formed on the other surface of the porous fuel electrode substrate2,and a porous air electrode substrate6jointed to the air electrode film4.A stack14is formed by laminating these single cells1and attaching manifold plates11on side surfaces. lectrons caused by a potential difference between said first and second electrodes. 10. A method as in claim 9, wherein said organic fuel includes a methanol derivative and water and is substantially free of any acid component.11. A method as in claim 10, wherein said second reactive component is an oxygen-containing gas.12. A method as in claim 11 further comprising operating said fuel cell to transport protons from the first electrode through the electrolyte to the second electrode, and to form a flow of electrons through the load.13. An organic fuel cell, comprising: a first chamber, formed of a plurality of inner surfaces made of a material which is not acid resistant, and including a first port, positioned and sized to receive a fuel therein, and a second port sized to exhaust said fuel therefrom; a first electrode, including an electrocatalyst operatively coupled thereto, in contact with said first chamber; an electrolyte, ionically coupled with said first electrode; a second chamber, having surfaces formed to receive a second component therein which is capable of undergoing reduction; a second electrode tonically coupled with said electrolyte and having a second surface exposed to said second chamber; and a fuel circulating mechanism, operating to pump said organic fuel into said first chamber and to receive exhausted fuel therefrom, said fuel circulating mechanism having surfaces which contact said fuel which surfaces are not acid resistant. 14. A fuel cell as in claim 13, wherein said electrolyte includes a proton-conducting membrane.15. A fuel cell as in claim 13, further comprising an organic fuel, located in said first chamber, said organic fuel substantially free of any acidic or alkaline component.16. A fuel cell as in claim 15, wherein said second component includes oxygen-containing gas.17. A fuel cell as in claim 13, wherein said anode includes an electrocatalyst operatively associated therewith.18. A fuel cell as in claim 17, wherein said electrocatalyst is a metal alloy particle, said metal alloy including platinum.19. A method of operating an organic fuel cell, comprising: circulating a mixture of a methanol derivative having the formula R—CH 2OH and water which substantially excludes any acid components into contact with a first electrode; carrying out an electro-chemical oxidation reaction at the electrode of R—CH 2OH+H2O→CO2+H++e−; simultaneously with the electro-chemical oxidation reaction, carrying out a second electro-chemical reduction reaction to reduce oxygen and capture electrons at a cathode according to Cathode: O 2+4H++4e−→2H2O; and attaching a load between said anode and said cathode to receive electron flow from the reaction. 20. A method as in claim 19, further comprising coating the anode with an electrocatalyst to facilitate the reaction.21. A method as in claim 19, further comprising pressurizing air past the cathode at pressures between 10 and 30 psig.22. A fuel cell apparatus, comprising: a first chamber having surfaces for containing an organic aqueous fuel therein; an anode structure, having a first surface in contact with said first chamber, said anode structure being porous and capable of wetting the liquid fuel and also having electronic and ionic conductivity; an electrolyte, in contact with said anode structure, said electrolyte formed of a proton-conducting membrane; a cathode, in contact with said electrolyte in a way to receive protons which are produced by said anode structure, conducted through said electrolyte to said cathode; and a second chamber, holding said cathode, said second chamber including a second material including a reducible component therein wherein said anode is formed of carbon paper with an electrocatalyst thereon and wherein said fuel is an aqueous solution of a methanol derivative, and said second material is an oxygen-containing gas. 23. A fuel cell as in claim 5, wherein said me
※ AI-Helper는 부적절한 답변을 할 수 있습니다.