US5169731A
Expired / Lapsed
US
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Solid oxide fuel cell and method for manufacturing the same
Assignee: YKK Corp
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Filing: 1991-12-19
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Granted: 1992-12-08
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Expires: 2011-12-19
Abstract
Abstract In a solid oxide fuel cell, a multiplicity of single cells are arranged one on each of multiple hollow portions, each single cell including confronting inner and outer electrodes separated by a solid electrolyte. The individual single cells are interconnected in series by multiple interconnections each extending from the inner electrode, at its portion contiguous to the substrate, of the respective one single cell to the outer electrode of the adjacent single cell through the electrolyte of the respective one single cell.
Inventors
- 👤 Takayoshi Yoshimura
- 👤 Toshio Arai
- 👤 Masaki Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:50
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/24; H01M8/241; H01M8/2425; H01M8/2428; H01M8/2404; H01M8/243; H01M8/2432; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y02P; Y02P70/00; Y02P70/50; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
82 words
A solid oxide fuel cell comprising: (a) a substrate which is dense in structure and gastight; (b) at least one hollow portion being formed between said substrate and porous support parts; (c) a multiplicity of single cells disposed on each of said hollow portions of said substrate, each of said single cells including confronting inner and outer electrodes with an electrolyte disposed between them; and (d) a multiplicity of interconnections connecting said single cells in series and/or in parallel on said substrate.
Claim 2
Dependent Claim
82 words
A solid oxide fuel cell comprising: (a) a substrate which is dense in structure and gastight; (b) at least one hollow portion being formed between said substrate and porous support parts; (c) a multiplicity of single cells disposed on each of said hollow portions of said substrate, each of said single cells including confronting inner and outer electrodes with an electrolyte disposed between them; and (d) a multiplicity of interconnections connecting said single cells in series and/or in parallel on said substrate.
Claim 3
Dependent Claim
33 words
A solid oxide fuel cell according to claim 1, further including a multiplicity of porous support parts each disposed between an inner surface of each said single cell and the associated hollow portion.
Claim 4
Dependent Claim
38 words
A solid oxide fuel cell according to claim 1, wherein each said support part has a polygonal or semi-cylindrical contour and is disposed on said substrate, said hollow portion being defined by said substrate and said support part.
Claim 5
Dependent Claim
38 words
A solid oxide fuel cell according to claim 1, wherein said substrate has on its surface a groove over which said support part is disposed, said hollow portion being defined by said substrate and each said support part.
Claim 6
Dependent Claim
42 words
A solid oxide fuel cell acccording to claim 1, wherein said substrate has at a predetermined position on its surface a hole over which said support part is disposed, said hollow portion being defined by said substrate and each said support part.
Claim 7
Dependent Claim
17 words
A solid oxide fuel cell according to claim 1, wherein said support part is said inner electrode.
Claim 8
Dependent Claim
21 words
A solid oxide fuel cell according to claim 1, wherein said single cells are arranged on both surfaces of said substrate.
Claim 9
Dependent Claim
28 words
A solid oxide fuel cell according to claim 7, wherein said single cells are arranged on opposite surfaces of said substrate in mirror-image symmetry relative to said substrate.
Claim 10
Dependent Claim
27 words
A solid oxide fuel cell according to claim 7, wherein said single cells are arranged on opposite surfaces of said substrate in asymmetry relative to said substrate.
Claim 11
Dependent Claim
35 words
A solid oxide fuel cell according to claim 2, wherein each said hollow portion is defined by a recess in said substrate and each said porous support part received in a mouth of said recess.
Claim 12
Dependent Claim
31 words
A solid oxide fuel cell according to claim 10, wherein said recess has a step in the mouth of said recess, each said porous support part being supported on said step.
Claim 13
Independent Claim
112 words
A method for manufacturing a solid oxide fuel cell, comprising the steps of: (a) providing a substrate having on its surface a multiplicity of hollow portions each with an inner electrode; (b) forming on said substrate a multiplicity of interconnections each extending from said inner electrode end to a position spaced a predetermined distance from an adjacent inner electrode to make each single cells in series; (c) forming an electrolyte on an outer surface of said inner electrode in each said hollow portion; and (d) then forming an outer electrode on an electrolyte in such a manner that said outer electrode is connected to each said interconnection of said adjacent single cell.
Claim 14
Independent Claim
112 words
A method for manufacturing a solid oxide fuel cell, comprising the steps of: (a) providing a substrate having on its surface a multiplicity of hollow portions each with an inner electrode; (b) forming on said substrate a multiplicity of interconnections each extending from said inner electrode end to a position spaced a predetermined distance from an adjacent inner electrode to make each single cells in series; (c) forming an electrolyte on an outer surface of said inner electrode in each said hollow portion; and (d) then forming an outer electrode on an electrolyte in such a manner that said outer electrode is connected to each said interconnection of said adjacent single cell.
Claim 15
Independent Claim
125 words
A method for manufacturing a solid oxide fuel cell, comprising the steps of: (a) providing a substrate having on its surface a multiplicity of hollow portions each with or without a porous support part; (b) forming an inner electrode over each of said hollow portions; (c) forming on said substrate a multiplicity of interconnections each extending from said inner electrode end to a position spaced a predetermined distance from an adjacent inner electrode to make single cells in series; (d) forming an electrolyte on an outer surface of said inner electrode in each said hollow portion; and (e) then forming an outer electrode on an electrolyte in such a manner that said outer electrode is connected to each said interconnection of the adjacent single cell.
Claim 16
Independent Claim
125 words
A method for manufacturing a solid oxide fuel cell, comprising the steps of: (a) providing a substrate having on its surface a multiplicity of hollow portions each with or without a porous support part; (b) forming an inner electrode over each of said hollow portions; (c) forming on said substrate a multiplicity of interconnections each extending from said inner electrode end to a position spaced a predetermined distance from an adjacent inner electrode to make single cells in series; (d) forming an electrolyte on an outer surface of said inner electrode in each said hollow portion; and (e) then forming an outer electrode on an electrolyte in such a manner that said outer electrode is connected to each said interconnection of the adjacent single cell.
Claim 17
Independent Claim
124 words
A method for manufacturing a solid oxide fuel cell, comprising: (a) providing a substrate having on its surface a multiplicity of hollow portions each with or without a porous support part; (b) forming on said substrate a multiplicity of interconnections each extending from said porous support part end to a position spaced a predetermined distance from an adjacent porous support part to make said single cells in series; (c) forming an inner electrode over each of said hollow portions; (d) forming an electrolyte on an outer surface said inner electrode in each said hollow portion; and (e) then forming an outer electrode on an electrolyte in such a manner that said outer electrode is connected to each said interconnection of said adjacent single cell.
Claim 18
Independent Claim
124 words
A method for manufacturing a solid oxide fuel cell, comprising: (a) providing a substrate having on its surface a multiplicity of hollow portions each with or without a porous support part; (b) forming on said substrate a multiplicity of interconnections each extending from said porous support part end to a position spaced a predetermined distance from an adjacent porous support part to make said single cells in series; (c) forming an inner electrode over each of said hollow portions; (d) forming an electrolyte on an outer surface said inner electrode in each said hollow portion; and (e) then forming an outer electrode on an electrolyte in such a manner that said outer electrode is connected to each said interconnection of said adjacent single cell.
Claim 19
Dependent Claim
39 words
A method according to claim 12, further including the step of forming a multiplicity of interconnections connecting one said inner electrode end to adjacent inner electrode simultaneously with the forming step (b) to make said single cells in parallel.
Claim 20
Dependent Claim
39 words
A method according to claim 13, further including the step of forming a multiplicity of interconnections connecting one said inner electrode end to adjacent inner electrode simultaneously with the forming step (c) to make said single cells in parallel.
Claim 21
Dependent Claim
39 words
A method according to claim 14, further including the step of forming a multiplicity of interconnections connecting one said inner electrode end to adjacent inner electrode simultaneously with the forming step (c) to make said single cells in parallel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-08 | 1996-06-08 | 1996-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-08 | 2000-06-08 | 2000-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-08 | 2004-06-08 | 2004-12-08 | $7700.00 | Window Closed / Lapsed |