US4769298A
Expired / Lapsed
US
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Laminated fuel cell
Assignee: IHI Corp
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Filing: 1987-05-06
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Granted: 1988-09-06
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Expires: 2007-05-06
Abstract
Abstract A laminated fuel cell which can generate high output power in a simple manner, can be fabricated in a simple manner, can facilitate the transportion and can improve the efficiency of installation space.
Inventors
- 👤 Minoru Hosaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:28
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/24; H01M8/2465; H01M8/2483; H01M8/241; H01M8/14; H01M2008/147; H01M2300/00; H01M2300/0017; H01M2300/0048; H01M2300/0051; H01M8/249; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
165 words
A laminated fuel cell comprising: a plurality of cell elements forming a vertical stack; each cell element comprising: a rectangular electrolytic plate, an oxygen electrode in contact with one surface of said electrolytic plate, a fuel electrode in contact with an opposite surface of said electrolytic plate, separator plates separating adjacent cell elements from each other; said plates and electrodes forming identical rectangles with a first pair of parallel sides of a length at least twice that of a second pair of parallel sides; first passages for an oxidized gas on one side of said oxygen electrode; second passages for a fuel gas on one side of said fuel electrode, said passages extending parallel to the second pair of sides; supply manifold means for supplying oxidized gas and fuel gas to said first and second passages respectively; discharge manifold means for discharging oxidized gas and fuel gas from said first and second passages respectively; and a horizontally extending vessel in which said stack is arranged.
Claim 2
Dependent Claim
165 words
A laminated fuel cell comprising: a plurality of cell elements forming a vertical stack; each cell element comprising: a rectangular electrolytic plate, an oxygen electrode in contact with one surface of said electrolytic plate, a fuel electrode in contact with an opposite surface of said electrolytic plate, separator plates separating adjacent cell elements from each other; said plates and electrodes forming identical rectangles with a first pair of parallel sides of a length at least twice that of a second pair of parallel sides; first passages for an oxidized gas on one side of said oxygen electrode; second passages for a fuel gas on one side of said fuel electrode, said passages extending parallel to the second pair of sides; supply manifold means for supplying oxidized gas and fuel gas to said first and second passages respectively; discharge manifold means for discharging oxidized gas and fuel gas from said first and second passages respectively; and a horizontally extending vessel in which said stack is arranged.
Claim 3
Dependent Claim
22 words
A fuel cell according to claim 1, wherein the ratio of lengths of said first to said second sides is about 8:1.
Claim 4
Dependent Claim
38 words
A fuel according to claim 1, wherein said supply manifold means supply said oxidized gas and said fuel gas so as to flow in said first and second passages respectively in the same direction parallel to each other.
Claim 5
Dependent Claim
37 words
A fuel cell according to claim 1, wherein and supply manifold means supply said oxidized gas and said fuel gas so as to flow in said first and second passages respectively in opposite direction to each other.
Claim 6
Dependent Claim
21 words
A fuel cell according to claim 1, wherein said supply and discharge manifold means are arranged inside said fuel cell elements.
Claim 7
Dependent Claim
23 words
A fuel cell according to claim 1, wherein said supply and discharge manifold means are arranged outside said fuel elements in said vessel.
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) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |