IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0114076
(2002-04-03)
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우선권정보 |
JP-2001-123990(2001-04-23) |
발명자
/ 주소 |
- Hatano,Masaharu
- Yamanaka,Mitsugu
- Satou,Fuminori
- Shibata,Itaru
- Kushibiki,Keiko
- Hara,Naoki
- Fukuzawa,Tatsuhiro
- Uchiyama,Makoto
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
4 |
초록
▼
A solid electrolyte fuel cell plate structure includes a cell element layer composed of a solid electrolyte, an air electrode layer and a fuel electrode layer, a porous base body supporting the cell element layer, and a gas-impermeable member having electric conductivity. The cell element layer is
A solid electrolyte fuel cell plate structure includes a cell element layer composed of a solid electrolyte, an air electrode layer and a fuel electrode layer, a porous base body supporting the cell element layer, and a gas-impermeable member having electric conductivity. The cell element layer is arranged such that the solid electrolyte layer is sandwiched between the air electrode layer and the fuel electrode layer, with the air electrode layer or the fuel electrode layer being joined to the porous base body. The gas-impermeable member is associated with the solid electrolyte layer to allow gas internally passing through the porous base body to be separated from gas flowing outside the porous base body. Such a cell plate structure can be employed in a solid electrolyte fuel cell stack, which in turn can be employed in a solid electrolyte fuel cell electric power generation unit.
대표청구항
▼
What is claimed is: 1. A cell plate structure for a solid electrolyte fuel cell, comprising: a cell element layer having an air electrode layer, a fuel electrode layer and a solid electrolyte layer sandwiched between the air electrode layer and the fuel electrode layer; a porous base body supportin
What is claimed is: 1. A cell plate structure for a solid electrolyte fuel cell, comprising: a cell element layer having an air electrode layer, a fuel electrode layer and a solid electrolyte layer sandwiched between the air electrode layer and the fuel electrode layer; a porous base body supporting the cell element layer, the cell element layer being formed on the porous base body with the air electrode layer or the fuel electrode layer being joined to the porous base body; and a gas-impermeable member having an electrical conductivity and including a foil member provided with a window section; wherein the cell element layer is disposed through the window section of the foil member with the solid electrolyte layer being joined with the window section of the foil member to separate gas flowing through the porous base body from gas flowing outside the porous base body. 2. A cell plate structure according to claim 1, further comprising: another cell element layer having the same structure as the cell element layer, wherein the another cell element layer is joined to the porous base body at a position opposed to the cell element layer such that respective electrode layers, of the cell element layer and the another cell element layer, joined to the porous base body, have the same polarity with respect to one another. 3. A cell plate structure according to claim 1, wherein the porous base body further comprises ends with respect to a flow of the gas passing through the porous base body, and wherein the porous base body and the one of the air electrode layer and the fuel electrode layer are covered with the gas-impermeable member and the solid electrolyte layer under a condition in that the gas-impermeable member leaves the ends open while allowing the gas, which passes through the porous base body, to be distributed from the porous base body to the one of the air electrode layer and the fuel electrode layer. 4. A cell plate structure according to claim 3, wherein the solid electrolyte layer, the air electrode layer, the fuel electrode layer and the porous base body have substantially rectangular plate shapes, respectively, and the gas-impermeable member allows a pair of side walls of the porous base body of the rectangular plate shape to be exposed. 5. A cell plate structure according to claim 3, wherein the gas-impermeable member comprises the foil member which conceals the porous base body and the one of the air electrode layer and the fuel electrode layer while establishing communication between the porous base body and the one of the air electrode layer and the fuel electrode layer. 6. A cell plate structure according to claim 5, wherein the foil member includes a first foil component which covers an area of the cell element layer laminated on the porous base body and a second foil component which conceals the porous base body, the first and second foil components being joined together at flanged joint portions. 7. A cell plate structure according to claim 3, wherein the gas-impermeable member further includes a plate-like member joined to a surface of the porous base body, which is opposed to another surface on which the cell element layer is laminated, and the foil member joined to the plate-like member to join with the solid electrolyte layer, the plate-like member and the foil member concealing the porous base body and the one of the air electrode layer and the fuel electrode layer. 8. A cell plate structure according to claim 1, wherein the porous base body has an electrical conductivity. 9. A cell plate structure according to claim 8, wherein the porous base body is made of a sintered body of metallic fiber, a sintered body of metal particles or electrically conductive ceramics, or a combination thereof. 10. A cell plate structure according to claim 1, wherein the porous base body has a surface, opposed to another surface on which the cell element layer is laminated, which is formed with recessed portions. 11. A cell plate structure according to claim 10, wherein the recessed portions permit the flow of the gas which passes outside the porous base body. 12. A solid electrolyte fuel cell plate structure, comprising: a cell element layer having an air electrode layer, a fuel electrode layer and a solid electrolyte layer which is sandwiched between the air electrode layer and the fuel electrode layer; support means for supporting the cell element layer so as to allow gas to pass through the support means, the cell element layer being formed on the support means with the air electrode layer or the fuel electrode layer being joined to the support means; and gas-impermeable means for causing gas to be impermeable, the gas-impermeable means having an electrical conductivity and including a foil member provided with a window section; and wherein the cell element layer is disposed through the window section of the foil member with the solid electrolyte layer being joined with the window section of the foil member to separate gas flowing through the support means from gas flowing outside the support means. 13. A cell plate structure according to claim 1, wherein the foil member is disposed on a bottom side of the porous base body to enclose the bottom side of the porous base body and sides of the porous base body, wherein portions of the foil member enclosing sides of the porous base body form the window section of the foil member that join to the solid electrolyte layer. 14. A cell plate structure according to claim 2, wherein the foil member forms a first window section that is joined to the cell element layer and the foil member forms a second window section that is joined to the another cell element layer, wherein sides of the porous base body are enclosed by the foil member.
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