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US3884723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Button type galvanic cell
Assignee: EIDP Inc
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Filing: 1973-10-12
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Granted: 1975-05-20
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Expires: 1993-10-12
Abstract
Abstract Disclosed herein is an improvement in a button type galvanic cell comprising a conductive container, a conductive top for the container that is insulated therefrom, an anode electrode, a cathode electrode, at least one separator, and an electrolyte, the cell having a generally flat relatively thin configuration; the improvement comprising one electrode being of flat configuration presenting two flat sides and being encased on its two flat sides by a porous nonconductive separator and by the other electrode, the other electrode and the separator each containing at least one aperture in the same relative location(s) through which contact is made between the encased electrode and either the conductive container or the conductive top by means of at least one protuberance from the container or the top, there being no contact between the protuberance(s) and the electrode through which it passes.
Inventors
- 👤 Klaus Guenther Wuttke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:07
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
142 words
IN A GENERALLY FLAT RELATIVELY THIN BUTTON TYPE GALVANIC CELL COMPRISING A CONDUCTIVE CONTAINER AND A CONDUCTIVE TOP FOR THE CNTAINER INSULATED FROM THE CONTAINER AND AT LEAST ONE CONTACT ELEMENT FROM THE CONTAINER OR TOP, AND WITHIN THE CONTAINER AN ANODE ELECTRODE, A CATHODE ELECTRODE, A SEPARATOR BETWEEN THE ELECTRODES, AND AN ELECTROLYTE, THE IMPROVEMENT COMPRISING A FIRST ELECTRODE HAVING TWO FLAT SIDES ENCASED ON BOTH SIDES BY A POROUS NONCONDUCTIVE SEPARATOR AND BY A SECOND ELECTRODE, THE SECOND ELECTRODE AND THE SEPARATOR EACH CONTAINING AT LEAST ONE APERTURE IN THE SAME RELATIVE LOCATING ATTHROUGH WHICH CONTACT IS MADE BETWEEN THE ENCASED ELECTRODE AND EITHER THE CONTAINER OR TOP BY MEANS OF SAID CONTACT ELEMENT, SAID CONTACT ELEMENT BEING A PROTUBERANCE FROM THE CONTAINER OR TOP, THERE BEING NO CONTACT BETWEEN THE PROTUBERANCE AND THE ELECTRODE THROUGH WHICH THE PROTUBERANCE PASSES.
Claim 2
Dependent Claim
142 words
IN A GENERALLY FLAT RELATIVELY THIN BUTTON TYPE GALVANIC CELL COMPRISING A CONDUCTIVE CONTAINER AND A CONDUCTIVE TOP FOR THE CNTAINER INSULATED FROM THE CONTAINER AND AT LEAST ONE CONTACT ELEMENT FROM THE CONTAINER OR TOP, AND WITHIN THE CONTAINER AN ANODE ELECTRODE, A CATHODE ELECTRODE, A SEPARATOR BETWEEN THE ELECTRODES, AND AN ELECTROLYTE, THE IMPROVEMENT COMPRISING A FIRST ELECTRODE HAVING TWO FLAT SIDES ENCASED ON BOTH SIDES BY A POROUS NONCONDUCTIVE SEPARATOR AND BY A SECOND ELECTRODE, THE SECOND ELECTRODE AND THE SEPARATOR EACH CONTAINING AT LEAST ONE APERTURE IN THE SAME RELATIVE LOCATING ATTHROUGH WHICH CONTACT IS MADE BETWEEN THE ENCASED ELECTRODE AND EITHER THE CONTAINER OR TOP BY MEANS OF SAID CONTACT ELEMENT, SAID CONTACT ELEMENT BEING A PROTUBERANCE FROM THE CONTAINER OR TOP, THERE BEING NO CONTACT BETWEEN THE PROTUBERANCE AND THE ELECTRODE THROUGH WHICH THE PROTUBERANCE PASSES.
Claim 3
Dependent Claim
24 words
A cell according to claim 1 having at least one protuberance from the container to the encased electrode, the encased electrode being the cathode.
Claim 4
Dependent Claim
24 words
A cell according to claim 1 having at least one protuberance from the container to the encased electrode, the encased electrode being the anode.
Claim 5
Dependent Claim
25 words
A cell according to claim 1 having at least one protuberance from the container top to the encased electrode, the encased electrode being the cathode.
Claim 6
Dependent Claim
25 words
A cell according to claim 1 having at least one protuberance from the container top to the encased electrode, the encased electrode being the anode.
Claim 7
Dependent Claim
21 words
A cell according to claim 1 wherein the anode is a light metal anode and the electrolyte is a nonaqueous electrolyte.
Claim 8
Dependent Claim
16 words
A cell according to claim 6 wherein the anode is lithium and the electrolyte is dioxolane.
Claim 9
Dependent Claim
11 words
A cell according to claim 7 wherein the cathode is CuS.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |