US4317869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery structure
Assignee: MSA Safety Inc
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Filing: 1981-01-19
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Granted: 1982-03-02
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Expires: 2001-01-19
Abstract
Abstract A multi-cell battery structure in which a stacked array of cells are compressively positioned within an encasement means. Each cell comprises a lithium anode member and a depolarizer pellet adapted to abut the inner surface of encasement means. The depolarizer pellets with or without a cathode screen include a central opening through which lithium from the cell anode is extruded during assembly to form a central column of lithium. The multi-cell array is insulated from the encasement means so that only the depolarizer pellet or associated cathode screen is in contact therewith. A terminal pin, insulated from and positioned through the encasement means is embedded into the central column of lithium to provide electrical contact with battery anodes.
Inventors
- 👤 Stanford G. Folus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:24
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M10/00; H01M10/04; H01M6/42; H01M6/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
117 words
A multi-cell battery comprising a. an encasement means having a base portion; b. insulator means coextensively positioned on said base portion; c. an array of cells compressively intergrated to include a central column, said cells of said array each including a lithium anode and a depolarizer having a central opening, said central column being formed from lithium extruded through said openings by compression of said cells; d. second insulator means positioned coextensively over said array and having a central opening therethrough; and e. a top means having a terminal pin insulatingly mounted through said top means and extending through said second insulator means into said central column, said top means being hermetically secured to said encasement means.
Claim 2
Dependent Claim
117 words
A multi-cell battery comprising a. an encasement means having a base portion; b. insulator means coextensively positioned on said base portion; c. an array of cells compressively intergrated to include a central column, said cells of said array each including a lithium anode and a depolarizer having a central opening, said central column being formed from lithium extruded through said openings by compression of said cells; d. second insulator means positioned coextensively over said array and having a central opening therethrough; and e. a top means having a terminal pin insulatingly mounted through said top means and extending through said second insulator means into said central column, said top means being hermetically secured to said encasement means.
Claim 3
Dependent Claim
28 words
A multi-cell battery as set forth in claim 1 wherein each of said cells include a metal screen positioned within and extending beyond the perimeter of said depolarizer.
Claim 4
Dependent Claim
47 words
A multi-cell battery as set forth in claims 1 or 2 wherein said lithium anode of each cell includes an annular flange having a central opening therethrough prior to compression, said depolarizer being coextensive with said anode and flange but extending beyond the perimeter of said anode.
Claim 5
Dependent Claim
17 words
A multi-cell battery of claim 3 wherein said depolarizer abuts the inner surface of said encasement means.
Claim 6
Dependent Claim
24 words
A multi-cell battery as set forth in claims 1 or 2 wherein said depolarizer is charge-transfer complex mixed with an excess of an halogen.
Claim 7
Dependent Claim
26 words
A multi-cell battery as set forth in claim 5 wherein said encasement means is a size and a shape of type "C" or type "D" battery.
References Cited (Backward Citations)
US4284691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-03-01 | 1985-08-31 | 1986-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-01 | 1989-08-31 | 1990-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-01 | 1993-08-31 | 1994-03-02 | $7700.00 | Window Closed / Lapsed |