Patent US4042756A successfully refreshed from Google Patents.
US4042756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical cells
Assignee: Verizon Laboratories Inc
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Filing: 1976-04-12
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Granted: 1977-08-16
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Expires: 1996-04-12
Abstract
Abstract Electrochemical cells having a first central anode, a second anode in the form of a concentric annular ring disposed around the central anode, a cathode, also in the form of a concentric annular ring, positioned between the first and second anodes, but not in mechanical contact therewith, and an electrolytic solution between and in contact with the anodes and cathode. The central anode can be in the form of a cylindrical rod or, preferably, a concentric annular ring.
Inventors
- 👤 Franz Goebel
- 👤 Nikola Marincic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:20
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/04; H01M6/06; H01M6/08; H01M6/42
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
110 words
An electrochemical cell comprising a first, central electrode of one polarity; a second electrode of the same polarity as said first, central electrode, said second electrode being disposed around said first, central electrode but not in mechanical contact therewith; a third electrode of a polarity opposite to said first and second electrodes, said third electrode being disposed between said first and second electrodes but not in mechanical contact therewith; and an electrolytic solution between and in contact with said first, second and third electrodes, said first and second electrodes of the same polarity being greater in number than the number of electrodes of the polarity opposite to the first polarity.
Claim 2
Dependent Claim
110 words
An electrochemical cell comprising a first, central electrode of one polarity; a second electrode of the same polarity as said first, central electrode, said second electrode being disposed around said first, central electrode but not in mechanical contact therewith; a third electrode of a polarity opposite to said first and second electrodes, said third electrode being disposed between said first and second electrodes but not in mechanical contact therewith; and an electrolytic solution between and in contact with said first, second and third electrodes, said first and second electrodes of the same polarity being greater in number than the number of electrodes of the polarity opposite to the first polarity.
Claim 3
Dependent Claim
20 words
The cell of claim 1 wherein said first and second electrodes are anodes, and said third electrode is a cathode.
Claim 4
Dependent Claim
18 words
The cell of claim 1 wherein said first and second electrodes are anodes which are connected in parallel.
Claim 5
Dependent Claim
16 words
The cell of claim 1 wherein said first and second electrodes are anodes of different thickness.
Claim 6
Dependent Claim
23 words
The cell of claim 1 wherein said first electrode operates under flooded electrolyte conditions and said second electrode operates under starved electrolyte conditions.
Claim 7
Dependent Claim
13 words
The cell of claim 1 wherein said first electrode is a cylindrical rod.
Claim 8
Dependent Claim
13 words
The cell of claim 1 wherein said first electrode is a hollow cylinder.
Claim 9
Dependent Claim
14 words
The cell of claim 1 wherein each of said electrodes is a hollow cylinder.
Claim 10
Dependent Claim
15 words
The cell of claim 1 wherein each of said electrodes is a hollow, concentric cylinder.
Claim 11
Dependent Claim
14 words
The cell of claim 1 wherein said first and second electrodes are each lithium.
Claim 12
Dependent Claim
11 words
The cell of claim 1 wherein said third electrode is carbon.
Claim 13
Dependent Claim
38 words
The cell of claim 1 wherein said third electrode is (C 4 F) n ,where n refers to the presence of an indeterminately large number of recurring (C 4 F) groups in the material comprising said third electrode.
Claim 14
Dependent Claim
19 words
The cell of claim 1 wherein said first and second electrodes are lithium and said third electrode is carbon.
Claim 15
Dependent Claim
45 words
The cell of claim 1 wherein said first and second electrodes are lithium and said third electrode is (C 4 F)n, where n refers to the presence of an indeterminately large number of recurring (C 4 F) groups in the material comprising said third electrode.
Claim 16
Dependent Claim
26 words
The cell of claim 1 wherein said electrolyte solution comprises an inorganic oxyhalide solvent and a solute dissolved therein to render said electrolyte solution ionically conductive.
Claim 17
Dependent Claim
22 words
The cell of claim 15 wherein said inorganic oxyhalide solvent is phosphorus oxychloride, thionyl chloride, sulfuryl chloride, monofluorophosphoryl dichloride, or mixtures thereof.
Claim 18
Dependent Claim
95 words
The cell of claim 1 wherein said third electrode is carbon or (C 4 F) n , where n refers to the presence of an indeterminately large number of recurring (C 4 F) groups in the material comprising said third electrode, and said electrolytic solution comprises an inorganic oxyhalide solvent and a solute dissolved therein, said solvent being electrochemically reduced upon the surface of said third electrode during discharge of said cell, whereby said solvent in conjunction with said first and second electrodes serves as a source of electrical energy during discharge of said cell.
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) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |