US4608325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anode binders for electrochemical cells
Assignee: Duracell Inc USA
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Filing: 1983-10-06
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Granted: 1986-08-26
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Expires: 2003-10-06
Abstract
Abstract A blend of powders to be used in gelled anodes of electrochemical cells contains oil binders comprised of liquid petrolatum or halocarbon, particularly fluorocarbon, oils. Such binders maintain homogeneity of the powdered anode blends even under adverse storage and transporting conditions.
Inventors
- 👤 Mohamed I. Ismail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:11
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/06; H01M4/62; H01M4/621
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
An electrochemical cell comprised of an alkaline electrolyte, a manganese dioxide cathode and a gelled anode comprised of mercury amalgamated zinc, a starch graft copolymer gelling agent and a liquid petrolatum binder in amounts between 0.02% to 0.2% by weight thereof.
Claim 2
Dependent Claim
41 words
An electrochemical cell comprised of an alkaline electrolyte, a manganese dioxide cathode and a gelled anode comprised of mercury amalgamated zinc, a starch graft copolymer gelling agent and a liquid petrolatum binder in amounts between 0.02% to 0.2% by weight thereof.
References Cited (Backward Citations)
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US3970476A
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JPS53110033A
Cited
US4288913A
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US4260669A
Cited
US4281047A
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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) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |