US3926673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for charging zinc electrodes in galvanic cells
Assignee: Volkswagen AG
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Filing: 1974-07-29
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Granted: 1975-12-16
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Expires: 1994-07-29
Abstract
Abstract A method and apparatus for charging a zinc electrode utilized as an anode in a galvanic cell. In accordance with the invention, the surface of the zinc electrode is flushed with a gaseous agent, introduced from outside the galvanic cell, while the cell is charged to achieve a uniform and compact deposition of metallic zinc on the zinc electrode.
Inventors
- 👤 Nikolaus Saridakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:22
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/4214; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S320/00; Y10S320/17
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
54 words
A PROCESS FOR CHARGING A ZINC ELECTRODE UTILIZED AS AN ANODE IMMERSED IN A ZINC-CONTAINING ELECTROLYTE IN A GALVANIC CELL, COMPRISING THE STEPS OF: A. APPLYING A VOLTAGE TO THE ZINC ELECTRODE; AND B. SIMULTANEOUSLY FLUSHING THE SURFACE OF SAID ZINC ELECTRODE WITH A GASEOUS AGENT THAT IS INTRODUCED FROM OUTSIDE THE GALVANIC CELL.
Claim 2
Dependent Claim
54 words
A PROCESS FOR CHARGING A ZINC ELECTRODE UTILIZED AS AN ANODE IMMERSED IN A ZINC-CONTAINING ELECTROLYTE IN A GALVANIC CELL, COMPRISING THE STEPS OF: A. APPLYING A VOLTAGE TO THE ZINC ELECTRODE; AND B. SIMULTANEOUSLY FLUSHING THE SURFACE OF SAID ZINC ELECTRODE WITH A GASEOUS AGENT THAT IS INTRODUCED FROM OUTSIDE THE GALVANIC CELL.
Claim 3
Dependent Claim
12 words
The process defined in claim 1, wherein said gaseous agent is air.
Claim 4
Dependent Claim
21 words
The process defined in claim 1, wherein said gaseous agent is directed under pressure across said surface of said zinc eLectrode.
Claim 5
Dependent Claim
40 words
The process defined in claim 1, wherein said gaseous agent is introduced in the galvanic cell at a point below said zinc electrode, whereby the natural buoyancy of said gaseous agent causes said agent to rise in the cell electrolyte.
Claim 6
Dependent Claim
70 words
APPARATUS FOR CHARGING A ZINC ELECTODE UTILIZED AS AN ANODE IMMERSED IN A ZINC-CONTAINING ELECTROLYTE IN A GALVANIC CELL, SAID APPARATUS COMPRISING, IN COMBINATION: A. MEANS FOR APPLYING A VOLTAGE TO SAID ZINC ELECTRODE; B. SOURCE MEANS FOR SUPPLYING A GASEOUS AGENT TO THE GALVANIC CELL FROM OUTSIDE THE CELL; AND C. MEANS, CONNECTED TO SAID SOURCE MEANS, FOR FLUSHING THE SURFACE OF SAID ZINC ELECTRODE WITH SAID GASEOUS AGENT.
Claim 7
Dependent Claim
70 words
APPARATUS FOR CHARGING A ZINC ELECTODE UTILIZED AS AN ANODE IMMERSED IN A ZINC-CONTAINING ELECTROLYTE IN A GALVANIC CELL, SAID APPARATUS COMPRISING, IN COMBINATION: A. MEANS FOR APPLYING A VOLTAGE TO SAID ZINC ELECTRODE; B. SOURCE MEANS FOR SUPPLYING A GASEOUS AGENT TO THE GALVANIC CELL FROM OUTSIDE THE CELL; AND C. MEANS, CONNECTED TO SAID SOURCE MEANS, FOR FLUSHING THE SURFACE OF SAID ZINC ELECTRODE WITH SAID GASEOUS AGENT.
Claim 8
Dependent Claim
35 words
The apparatus defined in claim 5, wherein said flushing means includes a plurality of openings for the outflow of said gaseous agent, said openings being located at least at a point below said zinc electrode.
Claim 9
Dependent Claim
29 words
The apparatus defined in claim 6, wherein said openings are so arranged and dimensioned as to provide a substantially uniform flushing of the entire surface of said zinc electrode.
Claim 10
Dependent Claim
36 words
The apparatus defined in claim 6, wherein said flushing means includes a gas conduit arranged beneath said zinc electrode in the galvanic cell, said gas conduit having a plurality of openings for the outflow of gas.
Claim 11
Dependent Claim
16 words
The apparatus defined in claim 5, wherein said source means includes a source of compressed air.
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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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |