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US5200282A
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Nickel electrode and alkaline battery using the same
Assignee: Yuasa Development Corp
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Filing: 1991-10-02
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Granted: 1993-04-06
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Expires: 2011-10-02
Abstract
Abstract A nickel electrode for use in an alkaline battery using a network-like alkaline-proof metal mesh having pores at the inside thereof as a core metal current collector, as well as an alkaline battery using such a nickel electrode. Inexpensive nickel electrode having high performance, great capacity can be obtained at high productivity.
Inventors
- 👤 Masuhiro Ohnishi
- 👤 Masaharu Watada
- 👤 Masahiko Oshitani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:39
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/52; H01M10/00; H01M10/24; H01M10/30; H01M4/24; H01M4/32; H01M4/62; H01M4/624; H01M4/64; H01M4/66; H01M4/661; H01M4/625; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
94 words
A nickel electrode for an alkaline battery which comprises a plurality of metal wires connected together to provide a network-like, alkaline-proof metal mesh core; a highly conductive and electrochemically irreversible material covering said metal wires of said metal mesh core to a thickness of 2 to 5 μm, said highly conductive and electrochemically irreversible material comprising cobalt oxyhydroxide; and a layer of active material in which said metal mesh core with covering material extends, said highly conductive and electrochemically irreversible material providing a boundary between said metal wires and said layer of active material.
Claim 2
Dependent Claim
94 words
A nickel electrode for an alkaline battery which comprises a plurality of metal wires connected together to provide a network-like, alkaline-proof metal mesh core; a highly conductive and electrochemically irreversible material covering said metal wires of said metal mesh core to a thickness of 2 to 5 μm, said highly conductive and electrochemically irreversible material comprising cobalt oxyhydroxide; and a layer of active material in which said metal mesh core with covering material extends, said highly conductive and electrochemically irreversible material providing a boundary between said metal wires and said layer of active material.
Claim 3
Dependent Claim
25 words
A nickel electrode for alkine batteries according to claim 1, wherein said metal wires providing said networklike, alkaline-proof metal mesh core are composed of nickel.
Claim 4
Dependent Claim
18 words
A nickel electrode for alkaline batteries according to claim 2, wherein said nickel wires comprise crushed hollow cores.
Claim 5
Dependent Claim
32 words
A nickel electrode for alkaline batteries according to claim 2, wherein said active material comprises a mixture of nickel hydroxide powder, at least one divalent cobalt compound, and a conductive material powder.
Claim 6
Dependent Claim
27 words
A nickel electrode for alkaline batteries according to claim 4, wherein said divalent cobalt compound is selected from the group consisting of CoO,α--Co(OH) 2 and β--Co(OH) 2
Claim 7
Dependent Claim
25 words
A nickel electrode for alkaline batteries according to claim 4, said conductive material powder is selected from the group consisting of nickel and carbon powders.
Claim 8
Dependent Claim
21 words
A nickel electrode for alkaline batteries according to claim 6, wherein the conductive additive is in the form of short fibers.
Claim 9
Dependent Claim
28 words
A nickel electrode according to claim 6, wherein said cobalt oxyhydroxide is formed by applying cobalt to said nickel wires and then electrochemically converting it to cobalt oxyhydroxide.
References Cited (Backward Citations)
US3926671A
Cited
US4844999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-05 | 1996-10-05 | 1997-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-05 | 2000-10-05 | 2001-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-05 | 2004-10-05 | 2005-04-06 | $7700.00 | Window Closed / Lapsed |