US3615852A
Expired / Lapsed
US
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Fuel cell
Assignee: Siemens AG
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Filing: 1969-10-30
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Granted: 1971-10-26
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Expires: 1989-10-30
Abstract
Abstract Fuel cell includes a pair of electrodes spaced from one another, a porous support skeleton having electron-nonconductive cover layers at opposite sides thereof disposed in the space between the electrodes and containing fluid electrolyte, a metal profile frame carrying the support skeleton and provided with at least one supply duct and one discharge duct for electrolyte, and an elastic metal frame carrying each of the electrodes and located adjacent the frame for the support skeleton and separated therefrom by the respective electrically nonconductive cover layer, the frame for the electrodes being provided with respective supply and discharge ducts for fuel cell reactants.
Inventors
- 👤 Karl Strasser
- 👤 Johann Gehring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:54
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/24; H01M8/241; H01M8/242; H01M8/2465; H01M8/2483; H01M8/2457; H01M8/2459; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
42 words
Fuel cell according to claim 1, including electrode chambers located respectively on the side of said electrodes opposite from said support skeleton, said chambers being enclosed by a respective plate member, said elastic metal frame being firmly connected to said plate member.
Claim 2
Dependent Claim
14 words
Fuel cell according to claim 1, wherein said cover layers are formed of asbestos.
Claim 3
Dependent Claim
20 words
Fuel cell according to claim 3, wherein said cover layers are hydrophobic respectively in regions located between said metal frames.
Claim 4
Dependent Claim
21 words
Fuel cell according to claim 4, wherein said hydrophobic regions of said asbestos cover layers are impregnated with hydrophobic plastic material.
Claim 5
Dependent Claim
34 words
Fuel cell according to claim 1, wherein said electrodes are at least partly formed of pulverulent catalyst material, and at least one layer of perforated sheet material retaining said pulverulent catalyst material in position.
Claim 6
Dependent Claim
14 words
Fuel cell according to claim 6, wherein said perforated sheet material is a screen.
Claim 7
Dependent Claim
44 words
Fuel battery formed of fuel cells according to claim 2, wherein respectively two electrodes and electrode chambers are located in a metal frame, and a plate member is connected to said metal frame so as to separate said electrode chambers one from the other.
Claim 8
Dependent Claim
22 words
Fuel battery according to claim 8, wherein said plate member separating said electrode chambers is formed with a plurality of grooves therein.
Claim 9
Dependent Claim
40 words
Fuel battery according to claim 8, wherein said electrolyte supply ducts, said electrolyte discharge ducts, said respective reactant supply ducts and said respective reactant discharge ducts for the cells in the battery are respectively connected by manifolds to one another.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |