US3811944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric cell with capacitance buffer
Assignee: Duracell Inc USA
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Filing: 1973-03-12
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Granted: 1974-05-21
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Expires: 1993-03-12
Abstract
Abstract An electric cell or battery is electrically combined with a capacitor in a common case, so the capacitor can serve as a buffer for the cell or battery. The case protects both and eliminates the need for a separate case for the capacitor.
Inventors
- 👤 C Liang
- 👤 Donald B Mc
- 👤 W Vierow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:18
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/50; H01M10/00; H01M10/42; H01M10/425; H01M10/4264; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
113 words
A solid state electric battery, comprising a hollow metallic container, having an originally open end and defining a chamber space; an electRic cell in a portion of said container space, and having two electrodes available for connection to an external circuit; a capacitor disposed in said container and electrically connected between said two electrodes; an insulator closure for said original open end, for closing said chamber space and hermetically sealing said container; terminal means supported on said insulator closure to provide electrically conductive access to said cell and capacitor unit as an energy source; and means within said container connecting the electrodes of the cell and of the capacitor to said terminal means.
Claim 2
Dependent Claim
113 words
A solid state electric battery, comprising a hollow metallic container, having an originally open end and defining a chamber space; an electRic cell in a portion of said container space, and having two electrodes available for connection to an external circuit; a capacitor disposed in said container and electrically connected between said two electrodes; an insulator closure for said original open end, for closing said chamber space and hermetically sealing said container; terminal means supported on said insulator closure to provide electrically conductive access to said cell and capacitor unit as an energy source; and means within said container connecting the electrodes of the cell and of the capacitor to said terminal means.
Claim 3
Dependent Claim
82 words
A solid state electric battery, as in claim 1, in which said cell includes a cathode, engaging an inner surface of said container; an anode spaced from said cathode and insulatingly supported away from direct electrical contact with said container; with a physical separator and an electrolyte between said cathode and said anode; partition means in said container to subdivide said total chamber space into two spaces: one space to accommodate the cell, and a separate second space to accommodate the capacitor.
Claim 4
Dependent Claim
56 words
A solid state electric battery, as in claim 1, in which said insulator closure embodies a metal closure disc to be hermetically mechanically sealed to said metallic container; insulating means on said closure for supporting electrode terminals for said source, electrically coupled to the terminals of the combined cell and capacitor as a unit energy source.
Claim 5
Dependent Claim
46 words
A solid state electric battery, as in claim 3, in which each said insulating means in said closure consists of an insulator having a through passage and an electrical conductor extending through said insulator, and means for hermetically sealing the outer end of said through passage.
Claim 6
Dependent Claim
61 words
A solid state electric battery, as in claim 4, in which said insulator with through passage consists of an insulation glass support sealed to said metal top and a current conductor extending through said glass support to provide an external terminal for an inside cell element, and means for hermetically sealing said conductor with respect to said cell against ambient atmosphere.
Claim 7
Dependent Claim
100 words
A solid state electric battery, as in claim 1, in which said electric cell in said container space is disposed to embody a portion of said conductive metallic container as an electrode element of said cell, with the other cell electrode free; and said capacitor disposed in said container is electrically connected between said other cell electrode and a point on said metallic container; with said insulator closure provided for said original open end; and said terminal means are supported on said insulator closure to provide electrically conductive access to said cell and capacitor combination as a unit energy source.
Claim 8
Dependent Claim
36 words
A solid state electric battery, as in claim 1, in which a partition subdivides said chamber space into separate compartments; and said electric cell and said capacitor are in said separate compartments of said chamber space.
Claim 9
Dependent Claim
29 words
A solid state electric battery, as in claim 7, in which said partition serves as a reaction-pressure confining wall for maintaining said cell under pressure for optimum operating condition.
Claim 10
Dependent Claim
27 words
A solid state electric battery, as in claim 2, in which an annular insulating ring surrounds said anode to separate and insulate said anode from said container.
Claim 11
Dependent Claim
36 words
A solid state electric battery, as in claim 7, in which a resilient pressure element is disposed between said partition and the anode of said cell to hold said cell under pressure for optimum operating condition.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |