US5023152A
Expired / Lapsed
US
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Fuel cell assembly
Assignee: Osaka Gas Co Ltd
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Filing: 1990-02-22
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Granted: 1991-06-11
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Expires: 2010-02-22
Abstract
Abstract In a fuel cell assembly, each cell is disposed inside a fuel flow passage or an oxygen-containing gas flow passage. A lower end portion of the cell is inserted into a recess defined in a partition wall sectioning between the fuel flow passage or a fuel feed passage and the oxygen-containing gas feed passage, while an upper end portion of the cell is insertible into and withdrawable from a further partition wall sectioning between the fuel flow passage or the oxygen-containing gas passage and an exhaust passage. In a further fuel cell assembly also disclosed, each cell is disposed inside a fuel flow passage or an oxygen-containing gas flow passage. One side end of the cell is airtightly connected with a partition wall sectioning between the fuel flow passage and the oxygen-containing gas feed passage or between the fuel feed passage and the oxygen-containing gas flow passage, while the other side end of the cell is insertible into and withdrawable from a further partition wall sectioning between the fuel flow passage or the oxygen-containing gas flow passage and the exhaust passage.
Inventors
- 👤 Kousuke Akagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:28
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/24; H01M8/241; H01M8/2425; H01M8/2432; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
178 words
A fuel cell assembly comprising: a cell consisting essentially of an electrolytic layer, an oxygen electrode attached to one side of the electrolytic layer and opposed to an oxygen-containing gas flow passage and of a fuel electrode attached to the other side of the electrolytic layer and opposed to a fuel flow passage; a separator attached only to the oxygen electrode and for forming therewith and therebetween the oxygen-containing gas flow passage; an oxygen-containing gas feed passage communicating with said oxygen-containing gas flow passage and disposed downwardly of said fuel flow passage; and an exhaust passage communicating with said oxygen-containing gas flow passage and disposed upwardly of said fuel flow passage; wherein said cell is disposed inside said fuel flow passage; a lower end portion of said cell being inserted into a recess defined in a partition wall sectioning between said fuel flow passage and said oxygen-containing gas feed passage; and an upper end portion of said cell being insertible into and withdrawable from a further partition wall sectioning between said fuel flow passage and said exhaust passage.
Claim 2
Dependent Claim
178 words
A fuel cell assembly comprising: a cell consisting essentially of an electrolytic layer, an oxygen electrode attached to one side of the electrolytic layer and opposed to an oxygen-containing gas flow passage and of a fuel electrode attached to the other side of the electrolytic layer and opposed to a fuel flow passage; a separator attached only to the oxygen electrode and for forming therewith and therebetween the oxygen-containing gas flow passage; an oxygen-containing gas feed passage communicating with said oxygen-containing gas flow passage and disposed downwardly of said fuel flow passage; and an exhaust passage communicating with said oxygen-containing gas flow passage and disposed upwardly of said fuel flow passage; wherein said cell is disposed inside said fuel flow passage; a lower end portion of said cell being inserted into a recess defined in a partition wall sectioning between said fuel flow passage and said oxygen-containing gas feed passage; and an upper end portion of said cell being insertible into and withdrawable from a further partition wall sectioning between said fuel flow passage and said exhaust passage.
Claim 3
Dependent Claim
34 words
A fuel cell assembly as defined in claim 1, wherein said electrolytic layer is formed as a plate while said oxygen electrode and said fuel electrode are formed as a film or plate, respectively.
Claim 4
Dependent Claim
23 words
A fuel cell assembly as defined in claim 2, wherein said electrolytic layer is formed of ZrO 2 with solid solution of Yt.
Claim 5
Dependent Claim
19 words
A fuel cell assembly as defined in claim 2, wherein said oxygen electrode is formed of LaMnO 3 .
Claim 6
Dependent Claim
23 words
A fuel cell assembly as defined in claim 2, wherein said fuel electrode is formed of cermet of Ni and ZrO 2 .
Claim 7
Dependent Claim
178 words
A fuel cell assembly comprising: a cell consisting essentially of an electrolytic layer, an oxygen electrode attached to one side of the electrolytic layer and opposed to an oxygen-containing gas flow passage and of a fuel electrode attached to the other side of the electrolytic layer and opposed to a fuel flow passage; a separator attached only to the fuel electrode and for forming therewith and therebetween the fuel flow passage; a fuel feed passage communicating with said fuel flow passage and disposed downwardly of said oxygen-containing gas flow passage; and an exhaust passage communicating with said fuel flow passage and disposed upwardly of said oxygen-containing gas flow passage; wherein said cell is disposed inside said oxygen-containing gas flow passage; a lower end portion of said cell being inserted into a recess defined in a partition wall sectioning between said oxygen-containing gas flow passage and said fuel feed passage; and an upper end portion of said cell being insertible into and withdrawable from a further partition wall sectioning between said oxygen-containing gas flow passage and said exhaust passage.
Claim 8
Dependent Claim
178 words
A fuel cell assembly comprising: a cell consisting essentially of an electrolytic layer, an oxygen electrode attached to one side of the electrolytic layer and opposed to an oxygen-containing gas flow passage and of a fuel electrode attached to the other side of the electrolytic layer and opposed to a fuel flow passage; a separator attached only to the fuel electrode and for forming therewith and therebetween the fuel flow passage; a fuel feed passage communicating with said fuel flow passage and disposed downwardly of said oxygen-containing gas flow passage; and an exhaust passage communicating with said fuel flow passage and disposed upwardly of said oxygen-containing gas flow passage; wherein said cell is disposed inside said oxygen-containing gas flow passage; a lower end portion of said cell being inserted into a recess defined in a partition wall sectioning between said oxygen-containing gas flow passage and said fuel feed passage; and an upper end portion of said cell being insertible into and withdrawable from a further partition wall sectioning between said oxygen-containing gas flow passage and said exhaust passage.
Claim 9
Dependent Claim
34 words
A fuel cell assembly as defined in claim 6, wherein said electrolytic layer is formed as a plate while said oxygen electrode and said fuel electrode are formed as a film or plate, respectively.
Claim 10
Dependent Claim
23 words
A fuel cell assembly as defined in claim 7, wherein said electrolytic layer is formed of ZrO 2 with solid solution of Yt.
Claim 11
Dependent Claim
19 words
A fuel cell assembly as defined in claim 7, wherein said oxygen electrode is formed of LaMnO 3 .
Claim 12
Dependent Claim
23 words
A fuel cell assembly as defined in claim 7, wherein said fuel electrode is formed of cermet of Ni and ZrO 2 .
Claim 13
Dependent Claim
179 words
A fuel cell assembly comprises: a cell consisting essentially of an electrolytic layer, an oxygen electrode attached to one side of the electrolytic layer and opposed to an oxygen-containing gas flow passage and of a fuel electrode attached to the other side of the electrolytic layer and opposed to a fuel flow passage; a separator attached only to the oxygen electrode and for forming therewith and therebetween the oxygen-containing gas flow passage; an oxygen-containing gas feed passage communicating with said oxygen-containing gas flow passage and disposed at one lateral side of said fuel flow passage; and an exhaust passage communicating with said oxygen-containing gas flow passage and disposed at the other lateral side of said fuel flow passage; wherein said cell is disposed inside said fuel flow passage; one side end of said cell being airtightly connected with a partition wall sectioning between said fuel flow passage and said exhaust passage; and the other side end of said cell being insertible into and withdrawable from a further partition wall sectioning between said fuel flow passage and said exhaust passage.
Claim 14
Dependent Claim
179 words
A fuel cell assembly comprises: a cell consisting essentially of an electrolytic layer, an oxygen electrode attached to one side of the electrolytic layer and opposed to an oxygen-containing gas flow passage and of a fuel electrode attached to the other side of the electrolytic layer and opposed to a fuel flow passage; a separator attached only to the oxygen electrode and for forming therewith and therebetween the oxygen-containing gas flow passage; an oxygen-containing gas feed passage communicating with said oxygen-containing gas flow passage and disposed at one lateral side of said fuel flow passage; and an exhaust passage communicating with said oxygen-containing gas flow passage and disposed at the other lateral side of said fuel flow passage; wherein said cell is disposed inside said fuel flow passage; one side end of said cell being airtightly connected with a partition wall sectioning between said fuel flow passage and said exhaust passage; and the other side end of said cell being insertible into and withdrawable from a further partition wall sectioning between said fuel flow passage and said exhaust passage.
Claim 15
Dependent Claim
34 words
A fuel cell assembly as defined in claim 11, wherein said electrolytic layer is formed as a plate while said oxygen electrode and said fuel electrode are formed as a film or plate, respectively.
Claim 16
Dependent Claim
23 words
A fuel cell assembly as defined in claim 12, wherein said electrolytic layer is formed of ZrO 2 with solid solution of Yt.
Claim 17
Dependent Claim
19 words
A fuel cell assembly as defined in claim 12, wherein said oxygen electrode is formed of LaMnO 3 .
Claim 18
Dependent Claim
23 words
A fuel cell assembly as defined in claim 12, wherein said fuel electrode is formed of cermet of Ni and ZrO 2 .
Claim 19
Dependent Claim
181 words
A fuel cell assembly comprises: a cell consisting essentially of an electrolytic layer, an oxygen electrode attached to one side of the electrolytic layer and opposed to an oxygen-containing gas flow passage and of a fuel electrode attached to the other side of the electrolytic layer and opposed to a fuel flow passage; a separator attached only to the fuel electrode and for forming therewith and therebetween the fuel flow passage; a fuel feed passage communicating with said fuel flow passage and disposed at one lateral side of said oxygen-containing gas flow passage; and an exhaust passage communicating with said fuel flow passage and disposed at the other lateral side of said oxygen-containing gas flow passage; wherein said cell is disposed inside said oxygen-containing gas flow passage; one side end of said cell being airtightly connected with a partition wall sectioning between said oxygen-containing gas flow passage and said fuel feed passage; and the other side end of said cell being insertible into and withdrawable from a further partition wall sectioning between said oxygen-containing gas flow passage and said exhaust passage.
Claim 20
Dependent Claim
181 words
A fuel cell assembly comprises: a cell consisting essentially of an electrolytic layer, an oxygen electrode attached to one side of the electrolytic layer and opposed to an oxygen-containing gas flow passage and of a fuel electrode attached to the other side of the electrolytic layer and opposed to a fuel flow passage; a separator attached only to the fuel electrode and for forming therewith and therebetween the fuel flow passage; a fuel feed passage communicating with said fuel flow passage and disposed at one lateral side of said oxygen-containing gas flow passage; and an exhaust passage communicating with said fuel flow passage and disposed at the other lateral side of said oxygen-containing gas flow passage; wherein said cell is disposed inside said oxygen-containing gas flow passage; one side end of said cell being airtightly connected with a partition wall sectioning between said oxygen-containing gas flow passage and said fuel feed passage; and the other side end of said cell being insertible into and withdrawable from a further partition wall sectioning between said oxygen-containing gas flow passage and said exhaust passage.
Claim 21
Dependent Claim
34 words
A fuel cell assembly as defined in claim 16, wherein said electrolytic layer is formed as a plate while said oxygen electrode and said fuel electrode are formed as a film or plate, respectively.
Claim 22
Dependent Claim
23 words
A fuel cell assembly as defined in claim 17, wherein said electrolytic layer is formed of ZrO 2 with solid solution of Yt.
Claim 23
Dependent Claim
19 words
A fuel cell assembly as defined in claim 17, wherein said oxygen electrode is formed of LaMnO 3 .
Claim 24
Dependent Claim
23 words
A fuel cell assembly as defined in claim 17, wherein said fuel electrode is formed of cermet of Ni and ZrO 2 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-10 | 1994-12-10 | 1995-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-10 | 1998-12-10 | 1999-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-10 | 2002-12-10 | 2003-06-11 | $7700.00 | Window Closed / Lapsed |