US5049459A
Expired / Lapsed
US
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Fuel cell
Assignee: Osaka Gas Co Ltd
•
Filing: 1990-03-16
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Granted: 1991-09-17
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Expires: 2010-03-16
Abstract
Abstract A fuel cell having an electrolyte layer, an oxygen electrode attached to one face of the electrolyte layer, a fuel electrode attached to the other face of the electrolyte layer, a separator formed of electrically conductive material and disposed in opposition to the oxygen electrode to be electrically connected therewith, an oxygen-containing gas flow passage formed between the oxygen electrode and the separator, and a conductive member disposed in the oxygen-containing gas flow passage. The conductive member is formed of flexible material and separately from the oxygen electrode and the separator for connecting entire or partial faces respectively of the oxygen electrode and the separator with each other.
Inventors
- 👤 Kousuke Akagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:55
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/02; H01M8/0202; H01M8/0204; H01M8/0223; H01M8/0228; H01M8/023; H01M8/0232; H01M8/0234; H01M8/0258; H01M8/0263; H01M8/0267; H01M8/0271; H01M8/0276; H01M8/04; H01M8/04007; H01M8/04067; H01M8/24; H01M8/241; H01M8/2425; H01M8/2432; H01M8/2465; H01M8/2483; H01M8/10; H01M8/12; H01M2008/1293; H01M2300/00; H01M2300/0017; H01M2300/0065; H01M2300/0068; H01M2300/0071; H01M2300/0074; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
143 words
A solid electrolye fuel cell comprising: an electrolyte layer; an oxygen electrode attached to one face of said electrolyte layer; a fuel electrode attached to the other face of said electrolyte layer; a separator formed of electrically conductive material and disposed in opposition to said oxygen electrode to be electrically connected therewith; an oxygen-containing gas flow passage formed between said oxygen electrode and said separator; said separator integrally including band ridges at opposed side edges thereof, said band ridges sealing side edges of said oxygen-containing gas flow passage so that an entire periphery of the cell construction along said oxygen-containing gas flow passage is formed as a fuel flow passage separated from said oxygen-containing gas flow passage; and a conductive member formed of flexible material and provided separately from said separator in one of said oxygen-containing gas flow passage and fuel flow passage.
Claim 2
Dependent Claim
143 words
A solid electrolye fuel cell comprising: an electrolyte layer; an oxygen electrode attached to one face of said electrolyte layer; a fuel electrode attached to the other face of said electrolyte layer; a separator formed of electrically conductive material and disposed in opposition to said oxygen electrode to be electrically connected therewith; an oxygen-containing gas flow passage formed between said oxygen electrode and said separator; said separator integrally including band ridges at opposed side edges thereof, said band ridges sealing side edges of said oxygen-containing gas flow passage so that an entire periphery of the cell construction along said oxygen-containing gas flow passage is formed as a fuel flow passage separated from said oxygen-containing gas flow passage; and a conductive member formed of flexible material and provided separately from said separator in one of said oxygen-containing gas flow passage and fuel flow passage.
Claim 3
Dependent Claim
35 words
A fuel cell as defined in claim 1, wherein said electrolyte layer is formed as a plate member while said oxygen electrode and said fuel electrode are formed as a film or plate member, respectively.
Claim 4
Dependent Claim
34 words
A fuel cell as defined in claim 1, wherein said conductive member comprises a felt type member formed of one or two of the group consisting of La compound, Ni-based alloy and Co-based alloy.
Claim 5
Dependent Claim
16 words
A fuel cell as defined in claim 3, wherein said La compound comprises LaMnO 3 .
Claim 6
Dependent Claim
22 words
A fuel cell as defined in claim 2, wherein said electrolyte layer is formed of ZrO 2 with solid solution of Yt.
Claim 7
Dependent Claim
18 words
A fuel cell as defined in claim 2, wherein said oxygen electrode is formed of LaMnO 3 .
Claim 8
Dependent Claim
22 words
A fuel cell as defined in claim 2, wherein said fuel electrode is formed of cermet of Ni and ZrO 2 .
Claim 9
Dependent Claim
141 words
A solid electrolyte fuel cell comprising: an electrolyte layer; an oxygen electrode attached to one face of said electrolyte layer; a fuel electrode attached to the other face of said electrolyte layer; a separator formed of electrically conductive material and disposed in opposition to said fuel electrode to be electrically connected therewith; a fuel flow passage formed between said fuel electrode and said separator; said separator integrally including band ridges at opposed side edges thereof, said band ridges sealing side edges of said fuel flow passage so that an entire periphery of the cell construction along said fuel flow passage is formed as an oxygen-containing gas flow passage separated from said fuel flow passage; and a conductive member formed of flexible material and provided separately from said separator in one of said fuel flow passage and said oxygen-containing gas flow passage.
Claim 10
Dependent Claim
141 words
A solid electrolyte fuel cell comprising: an electrolyte layer; an oxygen electrode attached to one face of said electrolyte layer; a fuel electrode attached to the other face of said electrolyte layer; a separator formed of electrically conductive material and disposed in opposition to said fuel electrode to be electrically connected therewith; a fuel flow passage formed between said fuel electrode and said separator; said separator integrally including band ridges at opposed side edges thereof, said band ridges sealing side edges of said fuel flow passage so that an entire periphery of the cell construction along said fuel flow passage is formed as an oxygen-containing gas flow passage separated from said fuel flow passage; and a conductive member formed of flexible material and provided separately from said separator in one of said fuel flow passage and said oxygen-containing gas flow passage.
Claim 11
Dependent Claim
35 words
A fuel cell as defined in claim 8, wherein said electrolyte layer is formed as a plate member while said oxygen electrode and said fuel electrode are formed as a film or plate member, respectively.
Claim 12
Dependent Claim
20 words
A fuel cell as defined in claim 8, wherein said conductive member comprises a felt type member formed of Ni.
Claim 13
Dependent Claim
22 words
A fuel cell as defined in claim 9, wherein said electrolyte layer is formed of ZrO 2 with solid solution of Yt.
Claim 14
Dependent Claim
18 words
A fuel cell as defined in claim 9, wherein said oxygen electrode is formed of LaMnO 3 .
Claim 15
Dependent Claim
22 words
A fuel cell as defined in claim 9, wherein said fuel electrode is formed of cermet of Ni and ZrO 2 .
Claim 16
Dependent Claim
24 words
A fuel cell as defined in claim 1, wherein said oxygen-containg gas flow passage or said fuel flow passage includes therein a water-cooling pipe.
Claim 17
Dependent Claim
16 words
A fuel cell as defined in claim 14, wherein said water-cooling pipe has a winding shape.
Claim 18
Dependent Claim
19 words
A fuel cell as defined in claim 15, wherein said water-cooling pipe is surrounded by said flexible conductive member.
Claim 19
Dependent Claim
20 words
A fuel cell as defined in claim 1 wherein said conducting member is disposed in said oxygen-containing gas flow passage.
Claim 20
Dependent Claim
19 words
A fuel cell as defined in claim 8 wherein said conductive member is disposed in said fuel flow passage.
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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) | 1994-09-16 | 1995-03-18 | 1995-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-16 | 1999-03-18 | 1999-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-16 | 2003-03-18 | 2003-09-17 | $7700.00 | Window Closed / Lapsed |