US3607423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable hybrid fuel cells and method of recharging
Assignee: ZF International UK Ltd
•
Filing: 1969-08-27
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Granted: 1971-09-21
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Expires: 1989-08-27
Abstract
Abstract The invention relates to a hybrid fuel cell having battery plates, oxygen electrode, counterelectrode and electrolyte. Such a cell is charged by connecting the oxygen electrodes and counterelectrodes to a DC source while isolating the oxygen electrodes and counterelectrodes electrically, and the feature of the invention is that the required isolation is effected by supplying gas under pressure to the spaces between the counterelectrodes and oxygen electrodes.
Inventors
- 👤 Michael Murray Bertioli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:08
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/08; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
21 words
The method as claimed in claim 1 in which the gas is the gas supplied to the oxygen electrode during discharging.
Claim 2
Dependent Claim
98 words
A hybrid fuel cell including a negative electrode, a counterelectrode spaced from the negative electrode for defining therewith a first chamber containing electrolyte, said first chamber having electrolyte inlet and outlet means, an oxygen electrode spaced from the counterelectrode for defining therewith a second chamber, said second chamber having gas inlet and outlet means whereby upon the introduction of gas into the second chamber via the inlet means, the electrolyte is removed from said second chamber, and the oxygen electrode is isolated from the counterelectrode, and means connecting the oxygen electrode and counterelectrode to a source of DC.
Claim 3
Independent Claim
120 words
A method of charging a hybrid fuel cell which includes a consumable negative electrode spaced from a counterelectrode, with said negative electrode and counterelectrode defining a first chamber therebetween containing electrolyte, and having electrolyte inlet and outlet means, said counterelectrode being spaced from an oxygen electrode for defining a second chamber having gas inlet and outlet means, comprising the steps of recycling electrolyte from the outlet means to the inlet means of the first chamber, introducing gas into the inlet means of the second chamber through the oxygen electrode into the second chamber thereby removing electrolyte from the second chamber and isolating the oxygen electrode from the counterelectrode, and connecting the oxygen electrode and counterelectrode to a source of DC.
References Cited (Backward Citations)
US3219486A
Cited
US3359136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |