US4327166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonaqueous cell having a MNO2 /poly-carbon fluoride cathode
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1980-09-29
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Granted: 1982-04-27
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Expires: 2000-09-29
Abstract
Abstract A nonaqueous cell employing an anode such as lithium, a liquid organic electrolyte and a cathode comprising manganese dioxide and a poly-carbon fluoride such as (C 2 F) n or (CF x ) n in which x is greater than 0 up to about 1.1.
Inventors
- 👤 Violeta Z. Leger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:43
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/583; H01M4/48; H01M4/50; H01M4/502; H01M4/5835; H01M6/00; H01M6/14; H01M6/16; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
98 words
A nonaqueous cell comprising an anode selected from the group consisting of lithium, potassium, sodium, calcium, magnesium, aluminum and alloys thereof, an electrolyte of an ionizing solute dissolved in an organic solvent and a cathode, said cathode comprising manganese dioxide having a water content of less than 1 weight per cent based on the weight of the manganese dioxide; the improvement wherein a poly-carbon fluoride is added to the manganese dioxide cathode and has the formula (C y F x ) n wherein y is 1 or 2 and x is greater than 0 up to about 1.1.
Claim 2
Dependent Claim
98 words
A nonaqueous cell comprising an anode selected from the group consisting of lithium, potassium, sodium, calcium, magnesium, aluminum and alloys thereof, an electrolyte of an ionizing solute dissolved in an organic solvent and a cathode, said cathode comprising manganese dioxide having a water content of less than 1 weight per cent based on the weight of the manganese dioxide; the improvement wherein a poly-carbon fluoride is added to the manganese dioxide cathode and has the formula (C y F x ) n wherein y is 1 or 2 and x is greater than 0 up to about 1.1.
Claim 3
Dependent Claim
18 words
The nonaqueous cell of claim 1 wherein y is 1 and x is between about 0.8 and 1.0.
Claim 4
Dependent Claim
16 words
The nonaqueous cell of claim 1 wherein the poly-carbon fluoride is (C 2 F) n .
Claim 5
Dependent Claim
32 words
The nonaqueous cell of claim 1, 2 or 3 wherein the poly-carbon fluoride is present in an amount of 50% by weight or less based on the weight of the manganese dioxide.
Claim 6
Dependent Claim
36 words
The nonaqueous cell of claim 1, 2 or 3 wherein the poly-carbon fluoride is present in an amount of between about 10% by weight and 30% by weight based on the weight of the manganese dioxide.
Claim 7
Dependent Claim
18 words
The nonaqueous cell of claim 1, 2 or 3 wherein poly-carbon fluoride is mixed with the manganese dioxide.
Claim 8
Dependent Claim
21 words
The nonaqueous cell of claim 1, 2 or 3 wherein the poly-carbon fluoride is a layer disposed on the manganese dioxide.
Claim 9
Dependent Claim
19 words
The nonaqueous cell of claim 1, 2 or 3 wherein the cathode contains a binder and a conductive agent.
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) | 1985-04-26 | 1985-10-26 | 1986-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-26 | 1989-10-26 | 1990-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-26 | 1993-10-26 | 1994-04-27 | $7700.00 | Window Closed / Lapsed |