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Patent US4452675A successfully refreshed from Google Patents.
US4452675A
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Process for the activation of nickel electrodes via the electrochemical deposition of selenium and/or tellurium
Assignee: Honeywell International Inc
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Filing: 1982-10-18
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Granted: 1984-06-05
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Expires: 2002-10-18
Abstract
Abstract Nickel electrodes having selenium and/or tellurium electrochemically deposited thereon are disclosed. The nickel electrodes of this invention may be employed in primary or secondary alkaline batteries, and said electrodes exhibit improved currents and charges (i.e. with respect to pure nickel electrodes) when said electrodes are employed in primary or secondary batteries.
Inventors
- 👤 Divna Cipris
- 👤 Arthur T. Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:45
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/52; C; C25; C25D; C25D3/00; C25D3/02; C25D3/54; C25D9/00; C25D9/04; C25D9/08; H01M4/24; H01M4/26; H01M4/28; H01M4/29; H01M4/32; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
93 words
An electrochemical process for activation of a nickel electrode useful as the positive electrode of a secondary battery which comprises: (a) contacting said nickel electrode with an electrically conductive solution wherein said solution contains at least about 5 mg/mL to about 100 mg/mL of one compound selected from the group consisting of selenium and tellurium in the positive valence state, and (b) applying a voltage to said nickel electrode and generating thereby a current which results in the doping of said selenium, tellurium, or mixtures thereof, from said solution onto said nickel electrode.
Claim 2
Dependent Claim
93 words
An electrochemical process for activation of a nickel electrode useful as the positive electrode of a secondary battery which comprises: (a) contacting said nickel electrode with an electrically conductive solution wherein said solution contains at least about 5 mg/mL to about 100 mg/mL of one compound selected from the group consisting of selenium and tellurium in the positive valence state, and (b) applying a voltage to said nickel electrode and generating thereby a current which results in the doping of said selenium, tellurium, or mixtures thereof, from said solution onto said nickel electrode.
Claim 3
Dependent Claim
30 words
A process according to claim 1 wherein said electrically conductive solution is selected from the group consisting of organic acids, inorganic acids, organic bases, inorganic bases, or any salt thereof.
Claim 4
Dependent Claim
13 words
A process according to claim 2 wherein said organic acid is acetic acid.
Claim 5
Dependent Claim
17 words
A process according to claim 3 wherein said selenium is present in the form of selenious acid.
Claim 6
Dependent Claim
18 words
A process according to claim 4 wherein said concentration is between about 10 mg/mL and about 30 mg/mL.
Claim 7
Dependent Claim
17 words
A process according to claim 4 wherein said tellurium is present in the form of tellurous acid.
Claim 8
Dependent Claim
18 words
A process according to claim 6 wherein said concentration is between about 10 mg/mL and about 30 mg/mL.
Claim 9
Dependent Claim
16 words
A process according to claim 1 wherein said electrically conductive solution additionally contains a nickel salt.
Claim 10
Dependent Claim
13 words
A process according to claim 8 wherein said nickel salt is nickel nitrate.
Claim 11
Dependent Claim
25 words
A process according to claim 1 wherein said nickel electrode is selected from the group consisting of plate, pressed powder or porous structure nickel electrodes.
Claim 12
Dependent Claim
9 words
A nickel electrode produced in accordance with claim 1.
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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) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |