Fuel cell with a large exchange surface area
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
UP-0529637
(2006-09-28)
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등록번호 |
US-7704630
(2010-05-20)
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우선권정보 |
FR-05 52943(2005-09-29) |
발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
1 인용 특허 :
3 |
초록
▼
A support wafer made of silicon wafer comprising, on a first surface a porous silicon layer having protrusions, porous silicon pillars extending from the porous silicon layer to the second surface of the wafer, in front of each protrusion. Layers constituting a fuel cell can be formed on the support
A support wafer made of silicon wafer comprising, on a first surface a porous silicon layer having protrusions, porous silicon pillars extending from the porous silicon layer to the second surface of the wafer, in front of each protrusion. Layers constituting a fuel cell can be formed on the support wafer.
대표청구항
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What is claimed is: 1. A non-porous support wafer made of silicon wafer comprising, on a first surface a porous silicon layer having protrusions, porous silicon pillars extending from the porous silicon layer through the non-porous support wafer to the second surface of the non-porous support wafer
What is claimed is: 1. A non-porous support wafer made of silicon wafer comprising, on a first surface a porous silicon layer having protrusions, porous silicon pillars extending from the porous silicon layer through the non-porous support wafer to the second surface of the non-porous support wafer, in front of each protrusion. 2. A fuel cell formed on the support wafer of claim 1. 3. The fuel cell of claim 2, comprising, on the first surface of the non-porous support wafer, a first conductive layer intended to be connected to an anode collector and exhibiting through openings above the porous silicon portions, a superposition of a first catalyst layer, of an electrolyte layer, and of a second catalyst layer on the first conductive layer, as well as a second conductive layer intended to be connected to a cathode collector and exhibiting through openings. 4. A fuel cell, comprising: a non-porous support wafer fabricated from a silicon wafer, the non-porous support wafer including a porous silicon layer having a plurality of protrusions on a first surface of the non-porous support wafer, the non-porous support wafer further including a plurality of porous silicon pillars extending from the porous silicon layer to a second surface of the non-porous support wafer opposite the first surface, each porous silicon pillar being located in a region of the non-porous support wafer corresponding to a protrusion; first and second catalyst layers, the first catalyst layer adapted to be connected to an anode collector and the second catalyst layer adapted to be connected to a cathode collector; an electrolyte layer disposed between the first and second catalyst layers; a first conductive layer disposed between the porous silicon layer and the first catalyst layer, the first conductive layer having a plurality of through openings adapted to allow passage of a first gas from the porous silicon pillars and the porous silicon layer to the first catalyst layer; and a second conductive layer disposed on the second catalyst layer, the second conductive layer having a plurality of through openings adapted to allow passage of a second gas to the second catalyst layer. 5. The fuel cell of claim 4, wherein the porous silicon layer has a plurality of cavities formed in a surface thereof, adjacent protrusions being separated by at least one of the cavities. 6. The fuel cell of claim 5, wherein the porous silicon layer has a non-planar surface, each of the first and second catalyst layers, the electrolyte layer and the first and second conductive layers has a non-planar configuration that conforms to the non-planar surface. 7. A fuel cell, comprising: a non-porous support wafer fabricated from a silicon wafer, the non-porous support wafer including a porous silicon layer on a first surface of the silicon wafer and a plurality of porous silicon pillars extending from the porous silicon layer and through the non-porous support wafer to a second surface of the non-porous support wafer opposite the first surface, the porous silicon layer adapted to receive a first gas presented to the second surface of the non-porous support wafer through the porous silicon pillars, the porous silicon layer having a first surface area and the second surface having a second surface area that is less than the first surface area; first and second catalyst layers, the first catalyst layer adapted to be connected to an anode collector and the second catalyst layer adapted to be connected to a cathode collector; an electrolyte layer disposed between the first and second catalyst layers; a first conductive layer disposed between the porous silicone layer and the first catalyst layer, the first conductive layer having a plurality of through openings adapted to allow passage of the first gas from the porous silicone pillars and the porous silicone layer to the first catalyst layer; and a second conductive layer disposed on the second catalyst layer, the second conductive layer having a plurality of through openings adapted to allow passage of a second gas to the second catalyst layer. 8. The fuel cell of claim 7, wherein the porous silicon layer has a non-planar surface and the second surface of the support wafer is planar. 9. The fuel cell of claim 8, wherein each of the first and second catalyst layers, the electrolyte layer and the first and second conductive layers has a non-planar configuration that conforms to the non-planar surface of the porous silicon layer.
이 특허에 인용된 특허 (3)
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Michael DeMarinis ; Emory S. De Castro ; Robert J. Allen ; Khaleda Shaikh, Structures and methods of manufacture for gas diffusion electrodes and electrode components.
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Hockaday Robert G., Surface replica fuel cell for micro fuel cell electrical power pack.
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Brock Geoffrey E. (Mount Kisco NY), Thermal migration-porous silicon technique for forming deep dielectric isolation.
이 특허를 인용한 특허 (1)
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Cinquin, Philippe; Martin, Donald, Biomimetic artificial membrane device.
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