EP0426265A2
Expired / Lapsed
EP
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Solid electrolyte fuel cell
Assignee: Mitsubishi Heavy Industries Ltd
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Filing: 1990-09-07
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Granted: —
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Expires: 2010-09-07
Abstract
Abstract Disclosed is a noble solid electrolyte fuel cell comprising a generating layer [5], an interconnector layer [9], and a support layer [10,11] disposed between the generating layer and the interconnector. The interconnector layer comprises a fuel electrode and an interconnector material and an oxygen electrode. The support layer forms a fuel passage and an oxidizer passage, and supporting rods [15] for gas sealing are disposed at both ends of the support layer. Also, a sealing film is cemented to the contact surfaces of the supporting rod between the generating layer and the interconnector, and this sealing film becomes soft or half melted during the operation of the fuel cell. This construction provides better sealing of gases even under large temperature differences and improved cell performances. Also, the use of finer particles near the surface of the solid electrolyte only is disclosed.
Inventors
- 👤 Mitsuhiro C/O Takasago Technical Inst. Irino
- 👤 Tetsuo C/O Takasago Technical Inst. Gora
- 👤 Masaharu C/O Takasago Technical Inst. Minami
- 👤 Hitoshi C/O Takasago Technical Inst. Miyamoto
- 👤 Masao C/O Takasago Technical Inst. Sumi
- 👤 Nobugoshi Tomita
- 👤 Kiyoshi C/O Kobe Shipyard & Engine Watanabe
- 👤 Kazumi C/O Kobe Shipyard & Engine Ogura
- 👤 Masanori C/O Kobe Shipyard & Engine Nishiura
- 👤 Masayuki C/O Kobe Shipyard & Engine Funatsu
- 👤 Kazuhiro C/O Kobe Shipyard & Engine Yoshimoto
- 👤 Koichi C/O Kobe Shipyard & Engine Takenobu
- 👤 Tokuki C/O Kobe Shipyard & Engine Satake
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 16:58
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/02; H01M8/0271; H01M8/10; H01M8/12; H01M8/1213; H01M8/24; H01M8/241; H01M8/242; H01M8/2425; H01M8/2432; H01M4/00; H01M4/86; H01M4/90; H01M4/9016; H01M4/9025; H01M4/9033; H01M4/9041; H01M4/905; H01M4/9066; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
96 words
In a fuel cell comprising a generating layer, an interconnector layer, and a support layer disposed between the generating layer and the interconnector; a solid electrolyte fuel cell which is characterized in that the generating layer is a solid electrolyte sandwiched between a fuel pole and an oxygen pole, the interconnector layer comprises a fuel electrode and an interconnector material and an oxygen electrode, the support layer forms a fuel passage and an oxidizer passage above and below the generating layer, and supporting rods for gas sealing are disposed at both ends of the support layer.
Claim 2
Dependent Claim
96 words
In a fuel cell comprising a generating layer, an interconnector layer, and a support layer disposed between the generating layer and the interconnector; a solid electrolyte fuel cell which is characterized in that the generating layer is a solid electrolyte sandwiched between a fuel pole and an oxygen pole, the interconnector layer comprises a fuel electrode and an interconnector material and an oxygen electrode, the support layer forms a fuel passage and an oxidizer passage above and below the generating layer, and supporting rods for gas sealing are disposed at both ends of the support layer.
Claim 3
Dependent Claim
51 words
The solid electrolyte fuel cell as described in claim 1, wherein a sealing film is cemented to the contact surfaces of the supporting rod between the connection portions of the generating layer and the interconnector, and the sealing film becomes soft or half melted during the operation of the fuel cell.
Claim 4
Dependent Claim
45 words
The solid electrolyte fuel cell as described in claim 2, wherein the sealing film is made and formed of a mixture of inorganic fiber which does not becomes soft even at 1000°C and inorganic softening powder which becomes soft or half melted at about 1000°C.
Claim 5
Dependent Claim
24 words
The solid electrolyte fuel cell as described in any of claims 1 to 3, wherein the supporting rod is made of an electrolytic material.
Claim 6
Dependent Claim
92 words
A solid electrolyte fuel cell, comprising a solid electrolyte, a thin layer which is in direct contact with the solid electrolyte and made up of at least one layer of oxygen electrode fine particles, an oxygen electrode placed on the thin layer and comprising a layer whose thickness is greater than the thin layer and which is made of oxygen electrode particles whose diameter is larger than that of the oxygen electrode fine particles, and a fuel electrode disposed on the main surface of the solid electrolyte opposite from the oxygen electrode.
Claim 7
Dependent Claim
92 words
A solid electrolyte fuel cell, comprising a solid electrolyte, a thin layer which is in direct contact with the solid electrolyte and made up of at least one layer of oxygen electrode fine particles, an oxygen electrode placed on the thin layer and comprising a layer whose thickness is greater than the thin layer and which is made of oxygen electrode particles whose diameter is larger than that of the oxygen electrode fine particles, and a fuel electrode disposed on the main surface of the solid electrolyte opposite from the oxygen electrode.
Claim 8
Dependent Claim
92 words
A solid electrolyte fuel cell, comprising a solid electrolyte, a thin layer which is in direct contact with the solid electrolyte and made up of at least one layer of fuel electrode fine particles, a fuel electrode placed on the thin layer and comprising a layer whose thickness is greater than the thin layer and which is made of fuel electrode particles whose diameter is larger than that of the fuel electrode fine particles, and an oxygen electrode disposed on the main surface of the solid electrolyte opposite from the fuel electrode.
Claim 9
Dependent Claim
92 words
A solid electrolyte fuel cell, comprising a solid electrolyte, a thin layer which is in direct contact with the solid electrolyte and made up of at least one layer of fuel electrode fine particles, a fuel electrode placed on the thin layer and comprising a layer whose thickness is greater than the thin layer and which is made of fuel electrode particles whose diameter is larger than that of the fuel electrode fine particles, and an oxygen electrode disposed on the main surface of the solid electrolyte opposite from the fuel electrode.
Claim 10
Dependent Claim
155 words
A solid electrolyte fuel cell, comprising a solid electrolyte, a first thin layer which is in direct contact with the solid electrolyte and made up of at least one layer of oxygen electrode fine particles, an oxygen electrode placed on the first thin layer and comprising a layer whose thickness is greater than the first thin layer and which is made of oxygen electrode particles whose diameter is larger than that of the oxygen electrode fine particles, a second thin layer which is in direct contact with the solid electrolyte on the opposite side from the first thin layer and made up of at least one layer of fuel electrode fine particles, and a fuel electrode placed on the second thin layer and comprising a layer whose thickness is greater than the second thin layer and which is made of fuel electrode particles whose diameter is larger than that of the fuel electrode fine particles.
Claim 11
Dependent Claim
155 words
A solid electrolyte fuel cell, comprising a solid electrolyte, a first thin layer which is in direct contact with the solid electrolyte and made up of at least one layer of oxygen electrode fine particles, an oxygen electrode placed on the first thin layer and comprising a layer whose thickness is greater than the first thin layer and which is made of oxygen electrode particles whose diameter is larger than that of the oxygen electrode fine particles, a second thin layer which is in direct contact with the solid electrolyte on the opposite side from the first thin layer and made up of at least one layer of fuel electrode fine particles, and a fuel electrode placed on the second thin layer and comprising a layer whose thickness is greater than the second thin layer and which is made of fuel electrode particles whose diameter is larger than that of the fuel electrode fine particles.
Claim 12
Dependent Claim
105 words
The solid electrolyte fuel cell as described in any of claims 1 to 4, wherein the generating layer comprising a solid electrolyte, a thin layer which is in direct contact with the solid electrolyte and made up of at least one layer of oxygen electrode fine particles, an oxygen electrode placed on the thin layer and comprising a layer whose thickness is greater than the thin layer and which is made of oxygen electrode particles whose diameter is larger than that of the oxygen electrode fine particles, and a fuel electrode disposed on the main surface of the solid electrolyte opposite from the oxygen electrode.
Claim 13
Dependent Claim
105 words
The solid electrolyte fuel cell as described in any of claims 1 to 4, wherein the generating layer comprising a solid electrolyte, a thin layer which is in direct contact with the solid electrolyte and made up of at least one layer of fuel electrode fine particles, a fuel electrode placed on the thin layer and comprising a layer whose thickness is greater than the thin layer and which is made of fuel electrode particles whose diameter is larger than that of the fuel electrode fine particles, and an oxygen electrode disposed on the main surface of the solid electrolyte opposite from the fuel electrode.
Claim 14
Dependent Claim
168 words
The solid electrolyte fuel cell as described in any of claims 1 to 4, wherein the generating layer comprising a solid electrolyte, a first thin layer which is in direct contact with the solid electrolyte and made up of at least one layer of oxygen electrode fine particles, an oxygen electrode placed on the first thin layer and comprising a layer whose thickness is greater than the first thin layer and which is made of oxygen electrode particles whose diameter is larger than that of the oxygen electrode fine particles, a second thin layer which is in direct contact with the solid electrolyte on the opposite side from the first thin layer and made up of at least one layer of fuel electrode fine particles, and a fuel electrode placed on the second thin layer and comprising a layer whose thickness is greater than the second thin layer and which is made of fuel electrode particles whose diameter is larger than that of the fuel electrode fine particles.
References Cited (Backward Citations)
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