Patent US4132836A successfully refreshed from Google Patents.
US4132836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkali metal-halogen cell having mixed halogen cathode
Assignee: Greatbatch Eleanor and Wilson Foundation
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Filing: 1977-11-21
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Granted: 1979-01-02
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Expires: 1997-11-21
Abstract
Abstract An alkali metal-halogen cell comprising an alkali metal anode, preferably lithium, a solid alkali metal-halogen electrolyte and a cathode comprising a mixture of two halogens, for example iodine and bromine, the two halogens providing discharge of the cell at two different levels of cell output voltage. The two halogens are in different proportions by weight of the mixture thereby providing a two step output voltage-time characteristic. The cell advantageously can be employed in a battery for an artificial cardiac pacer.
Inventors
- 👤 Wilson Greatbatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:50
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M6/00; H01M6/14; H01M6/18; H01M6/182; Y; Y02; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
62 words
An alkali metal-halogen cell comprising: (a) an alkali metal anode; (b) a solid alkali metal-halogen electrolyte; and (c) a cathode comprising a mixture of two halogens, one of said halogens providing discharge of said cell at a first level of cell output voltage and the other of said halogens providing discharge of said cell at a second level of cell output voltage.
Claim 2
Dependent Claim
62 words
An alkali metal-halogen cell comprising: (a) an alkali metal anode; (b) a solid alkali metal-halogen electrolyte; and (c) a cathode comprising a mixture of two halogens, one of said halogens providing discharge of said cell at a first level of cell output voltage and the other of said halogens providing discharge of said cell at a second level of cell output voltage.
Claim 3
Dependent Claim
18 words
A cell according to claim 1, wherein said halogens are in different proportions by weight in said mixture.
Claim 4
Dependent Claim
34 words
A cell according to claim 1, wherein the one of said halogens which provides cell discharge at the higher level of cell output voltage is in the greater proportion by weight of said mixture.
Claim 5
Dependent Claim
22 words
A cell according to claim 1, wherein said anode is of lithium and said cathode comprises a mixture of bromine and iodine.
Claim 6
Dependent Claim
28 words
A cell according to claim 4, wherein bromine comprises about 95 percent by weight of said mixture and iodine comprises about 5 percent by weight of said mixture.
Claim 7
Dependent Claim
34 words
A cell according to claim 1, wherein the one of said halogens which provides cell discharge at the lower level of cell output voltage is in the greater proportion by weight of said mixture.
Claim 8
Dependent Claim
44 words
A cell according to claim 1, wherein said anode is of lithium and said cathode mixture comprises iodine in no greater than about 95 percent by weight of said mixture and bromine in no greater than about 5 percent by weight of said mixture.
Claim 9
Dependent Claim
47 words
A cell according to claim 1, wherein said anode is of lithium, said cathode mixture comprises bromine in an amount of about one percent by weight of said mixture, the remainder of said cathode mixture comprising iodine, and said cathode further comprising an organic electron donor material.
Claim 10
Dependent Claim
47 words
A cell according to claim 1, wherein said anode is of lithium, said cathode mixture comprises chlorine in an amount of about one percent by weight of said mixture, the remainder of said cathode mixture comprising iodine, and said cathode further comprising an organic electron donor material.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |