Patent US5620813A successfully refreshed from Google Patents.
US5620813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive nickel electrode for alkaline storage battery
Assignee: Samsung SDI Co Ltd
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Filing: 1996-05-22
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Granted: 1997-04-15
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Expires: 2016-05-22
Abstract
Abstract A positive electrode and a negative electrode for an alkaline storage battery and manufacturing methods thereof are provided. The positive electrode includes a nickel porous body formed on a plate, active material particles containing nickel hydroxide and additives filled up into the nickel porous body, a conductive layer coated on the surface of active material particle, and a protective layer coated on the surface of the conductive layer, for increasing the binding force between the active material particles and preventing the contact between the active material particles and an electrolytic aqueous solution.
Inventors
- 👤 Sang-won Lee
- 👤 Hwang-chul Bae
- 👤 Geun-bae Kim
- 👤 Jong-seo Choi
- 👤 Kwi-seuk Choi
- 👤 Kyu-Nam Joo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:01
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/242; H01M4/32; H01M50/00; H01M50/40; H01M50/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S420/00; Y10S420/90
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
95 words
A positive electrode for an alkaline battery comprising: a plate; a nickel porous body disposed on said plate; active material particles containing nickel hydroxide and additives permeating said nickel porous body; a conductive layer coating said active material particles; and a protective layer coating said conductive layer for increasing binding between said active material particles and preventing contact between said active material particles and an aqueous electrolytic solution wherein said protective layer includes at least one substance selected from the group consisting of benzene, n-butylacetate, sec-butylacetate, cyclohexane, cyclopentane, ethyl ether, heptane, hexane, toluene, and xylene.
Claim 2
Dependent Claim
95 words
A positive electrode for an alkaline battery comprising: a plate; a nickel porous body disposed on said plate; active material particles containing nickel hydroxide and additives permeating said nickel porous body; a conductive layer coating said active material particles; and a protective layer coating said conductive layer for increasing binding between said active material particles and preventing contact between said active material particles and an aqueous electrolytic solution wherein said protective layer includes at least one substance selected from the group consisting of benzene, n-butylacetate, sec-butylacetate, cyclohexane, cyclopentane, ethyl ether, heptane, hexane, toluene, and xylene.
Claim 3
Dependent Claim
24 words
The positive electrode for an alkaline battery as claimed in claim 1 wherein said protective layer is less conductive than said active material particles.
Claim 4
Dependent Claim
25 words
The positive electrode for an alkaline battery as claimed in claim 2 wherein said protective layer neither reacts nor mixes with the aqueous electrolytic solution.
Claim 5
Dependent Claim
93 words
A positive electrode for an alkaline battery comprising: a plate; a nickel porous body disposed on said plate; active material particles containing nickel hydroxide and additives permeating said nickel porous body; a conductive layer coating said active material particles; and a protective layer coating said conductive layer for increasing binding between said active material particles and preventing contact between said active material particles and an aqueous electrolytic solution wherein said protective layer includes at least one substance selected from the group consisting of n-butylchloride, carbon tetrachloride, chlorobenzene, chloroform, dichlorobenzene, methylene chloride, and trichloroethylene.
Claim 6
Dependent Claim
93 words
A positive electrode for an alkaline battery comprising: a plate; a nickel porous body disposed on said plate; active material particles containing nickel hydroxide and additives permeating said nickel porous body; a conductive layer coating said active material particles; and a protective layer coating said conductive layer for increasing binding between said active material particles and preventing contact between said active material particles and an aqueous electrolytic solution wherein said protective layer includes at least one substance selected from the group consisting of n-butylchloride, carbon tetrachloride, chlorobenzene, chloroform, dichlorobenzene, methylene chloride, and trichloroethylene.
Claim 7
Dependent Claim
24 words
The positive electrode for an alkaline battery as claimed in claim 4 wherein said protective layer is less conductive than said active material particles.
Claim 8
Dependent Claim
25 words
The positive electrode for an alkaline battery as claimed in claim 5 wherein said protective layer neither reacts nor mixes with the aqueous electrolytic solution.
References Cited (Backward Citations)
US5466546A
Cited
US5478594A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-04-14 | 2000-10-14 | 2001-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-14 | 2004-10-14 | 2005-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-14 | 2008-10-14 | 2009-04-15 | $7700.00 | Window Closed / Lapsed |