Fuel cell casing and fuel cell
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0877970
(2004-06-25)
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등록번호 |
US-7435500
(2008-10-14)
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우선권정보 |
JP-P2003-183146(2003-06-26) |
발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
4 |
초록
▼
The fuel cell casing includes a plural stacked units. Each unit includes a base body having a concavity, for accommodating a membrane electrode assembly; a first fluid channel formed in the base body; a first wiring conductor formed in the base body; a lid body for sealing concavity hermetically; a
The fuel cell casing includes a plural stacked units. Each unit includes a base body having a concavity, for accommodating a membrane electrode assembly; a first fluid channel formed in the base body; a first wiring conductor formed in the base body; a lid body for sealing concavity hermetically; a second fluid channel formed in the lid body; and a second wiring conductor formed in the lid body. The first wiring conductor of a lower unit is electrically connected to the second wiring conductor of an upper unit. Each unit has a convexity on an end portion of a side surface thereof which end portion is on an adjacent unit side, and the units adjacent to each other are bonded to each other at the convexities.
대표청구항
▼
What is claimed is: 1. A fuel cell casing comprising: a plurality of fuel cell casing units stacked together, each of the fuel cell casing units including, a base body made of ceramics that has a concavity formed on one surface thereof, the concavity accommodates therein a membrane electrode assemb
What is claimed is: 1. A fuel cell casing comprising: a plurality of fuel cell casing units stacked together, each of the fuel cell casing units including, a base body made of ceramics that has a concavity formed on one surface thereof, the concavity accommodates therein a membrane electrode assembly, the membrane electrode assembly having an ionically conductive membrane, a first electrode formed on one principal surface of the ionically conducting membrane and a second electrode formed on another principal surface of the ionically conducting membrane; a first fluid channel formed so as to extend from a bottom surface of the concavity facing the first electrode of the membrane electrode assembly to an outer surface of the base body; a plurality of first wiring conductors each having its one end disposed on a bottom surface of the concavity facing the first electrode of the membrane electrode assembly, and its another end led to the outer surface of the base body; a lid body mounted on the one surface of the base body near the concavity so as to cover the concavity, for sealing the concavity hermetically; a second fluid channel formed so as to extend from one surface of the lid body facing the second electrode of the membrane electrode assembly to an outer surface of the lid body; and a plurality of second wiring conductors each having its one end disposed on one surface of the lid body facing the second electrode of the membrane electrode assembly, and its another end led to the outer surface of the lid body; and one conducting member disposed between the plurality of first wiring conductors of one fuel cell casing unit and the plurality of second wiring conductors of another fuel cell casing unit, the plurality of first wiring conductors of one fuel cell casing unit being commonly connected to the one conducting member, and the plurality of second wiring conductors of another fuel cell casing unit being commonly connected to the one conducting member, wherein each of the fuel cell casing units has a convexity which is formed on an end portion of a side surface thereof which end portion is on an adjacent cell casing unit side, and the fuel cell casing units adjacent to each other are bonded to each other at their convexities. 2. The fuel cell casing of claim 1, wherein an adhesive used for bonding the convexities together is made of a thermosetting resin material having a curing temperature of 200�� C. or below. 3. The fuel cell casing of claim 1, wherein the base body and the lid body each possess a flexural strength of 200 MPa or above. 4. The fuel cell casing of claim 1, wherein the base body and the lid body each have a thickness 0.2 mm to 5 mm. 5. The fuel cell casing of claim 1, wherein the base body and the lid body are composed of sintered aluminum oxide having a relative density of 90% or above. 6. A fuel cell comprising: a plurality of fuel cell units stacked together, each of the fuel cell units including, a membrane electrode assembly having an ionically conducting membrane, a first electrode formed on one principal surface of the ionically conducting membrane and a second electrode formed on another principal surface of the ionically conducting membrane, and a fuel cell casing unit, including, a base body made of ceramics that has a concavity formed on one surface thereof, the concavity accommodates therein the membrane electrode assembly, a first fluid channel formed so as to extend from a bottom surface of the concavity facing the first electrode of the membrane electrode assembly to an outer surface of the base body; a plurality of first wiring conductors each having its one end disposed on a bottom surface of the concavity facing the first electrode of the membrane electrode assembly, and its another end led to the outer surface of the base body; a lid body mounted on the one surface of the base body near the concavity so as to cover the concavity, for sealing the concavity hermetically; a second fluid channel formed so as to extend from one surface of the lid body facing the second electrode of the membrane electrode assembly to an outer surface of the lid body; a plurality of second wiring conductors each having its one end disposed on one surface of the lid body facing the second electrode of the membrane electrode assembly, and its another end led to the outer surface of the lid body; and one conducting member disposed between the plurality of first wiring conductors of one fuel cell casing unit and the plurality of second wiring conductors of another fuel cell casing unit, the plurality of first wiring conductors of one fuel cell casing unit being commonly connected to the one conducting member, and the plurality of second wiring conductors of another fuel cell casing unit being commonly connected to the one conducting member, wherein the membrane electrode assembly is accommodated in the concavity of the fuel cell casing unit, one and the other principal surfaces of the ionically conducting membrane are arranged such that fluid can be exchanged between the one principal surface and the first fluid channel and between the other principal surface and the second fluid channel, respectively, the first wiring conductor is electrically connected to the first electrode, the second wiring conductor is electrically connected to the second electrode, and the lid body is mounted on the one surface of the base body near the concavity so as to cover the concavity, and wherein each of the fuel cell casing units has a convexity which is formed on an end portion of a side surface thereof which end portion is on an adjacent cell casing unit side, and the fuel cell casing units adjacent to each other are bonded to each other at their convexities.
이 특허에 인용된 특허 (4)
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Myron Krasij ; Michael J. Rajpolt, Bonded fuel cell stack assemblies.
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Dederer Jeffrey T. ; Hager Charles A., Electrochemical fuel cell generator having an internal and leak tight hydrocarbon fuel reformer.
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Richards William R. (Springfield VA), Fuel cell having uniform compressive stress distribution over active area.
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Spear ; Jr. Reginald G. ; Mueggenburg H. Harry ; Hodge Rex, Fuel cell platelet separators having coordinate features.
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