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US4500614A
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Alkaline cell
Assignee: FDK Twicell Co Ltd
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Filing: 1983-06-01
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Granted: 1985-02-19
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Expires: 2003-06-01
Abstract
Abstract An alkaline cell is provided which comprises an anode prepared by amalgamating an alloy powder made of zinc and at least two metals selected from the group consisting of gallium, indium and thallium, wherein the amount of mercury is 0.05 to 1.8% by weight based on the weight of zinc. An alkaline cell is also provided which comprises an anode prepared by forming on the particles of a zinc powder an alloy layer made of mercury and at least two metals selected from the group consisting of gallium, indium and thallium, wherein the amount of mercury is 0.05 to 1.80% by weight based on the weight of the zinc powder.
Inventors
- 👤 Akio Nagamine
- 👤 Akira Hayashi
- 👤 Kazumasa Yoshida
- 👤 Kojiro Miyasaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:16
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/244; H01M4/06; H01M4/08; H01M4/12; H01M4/36; H01M4/38; H01M4/42; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
56 words
An alkaline cell comprising an anode prepared by forming on the particles of a zinc powder an alloy layer made of mercury and at least two metals selected from the group consisting of gallium, indium and thallium, wherein an amount of mercury is 0.05 to 1.80% by weight based on a weight of the zinc powder.
Claim 2
Dependent Claim
56 words
An alkaline cell comprising an anode prepared by forming on the particles of a zinc powder an alloy layer made of mercury and at least two metals selected from the group consisting of gallium, indium and thallium, wherein an amount of mercury is 0.05 to 1.80% by weight based on a weight of the zinc powder.
Claim 3
Dependent Claim
30 words
An alkaline cell according to claim 1, wherein forming of the alloy layer is performed by mixing the zinc powder and the alloy in a heated weak alkaline aqueous solution.
Claim 4
Dependent Claim
23 words
An alkaline cell according to claim 1, wherein the anode further contains an alkaline electrolyte saturated with zinc oxide and a gelling agent.
References Cited (Backward Citations)
US4144382A
Cited
US4376810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |