US4016338A
Expired / Lapsed
US
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Galvanic element
Assignee: VARTA Batterie AG
•
Filing: 1976-08-16
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Granted: 1977-04-05
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Expires: 1996-08-16
Abstract
Abstract The electrochemically reducible component of the positive electrode mass is silver carbonate. The cell which includes this electrode and also a light-metal negative electrode. The battery made of such cells.
Inventors
- 👤 Helmut Lauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:19
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/16; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/5825; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
37 words
A galvanic element having a negative electrode of a strongly electro-positive metal, a non-aqueous electrolyte, and a positive electrode containing silver compounds, characterized in that the electro-chemically reducible component of the positive electrode mass includes silver carbonate.
Claim 2
Dependent Claim
37 words
A galvanic element having a negative electrode of a strongly electro-positive metal, a non-aqueous electrolyte, and a positive electrode containing silver compounds, characterized in that the electro-chemically reducible component of the positive electrode mass includes silver carbonate.
Claim 3
Dependent Claim
42 words
The element of claim 1 further characterized in that the electrolyte is a solution of lithium perchlorate in a mixture of about 70 to 85 percent by volume of propylene carbonate and about 15 to 30 percent by volume of dimethyl carbonate.
Claim 4
Dependent Claim
39 words
The element of claim 1 further characterized in that the positive electrode mass includes a mixture of about 1 to 6 percent by weight of graphite and about 0.5 to 1.5 percent by weight of a binder, preferably polytetrafluoroethylene.
Claim 5
Dependent Claim
46 words
The element of claim 1 further characterized in that the electrolyte is a solution of lithium perchlorate in a mixture of about 40 to 80 percent by volume of propylene carbonate or butyrolacton with about 20 to 60 percent by volume of dimethyl carbonate or dimethoxyethane.
Claim 6
Dependent Claim
20 words
The element of claim 1 further characterized in that the negative electrode is of lithium, calcium, magnesium, aluminum, or zinc.
Claim 7
Dependent Claim
15 words
The element of claim 1 further characterized in that the negative electrode is of lithium.
Claim 8
Dependent Claim
13 words
A battery assembled of a plurality of the galvanic elements of claim 1.
Claim 9
Dependent Claim
24 words
The battery of claim 7 which is an assembly of three of the galvanic elements and has an output potential of approximately 9 volts.
Claim 10
Dependent Claim
14 words
The element of claim 1 which has an output potential of about 3 volts.
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) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |