US4443526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
NiCO3 Electrode material and electrode
Assignee: Westinghouse Electric Corp
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Filing: 1982-03-03
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Granted: 1984-04-17
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Expires: 2002-03-03
Abstract
Abstract A battery plate is made by loading a supporting porous metallic plaque with an electrode paste comprising: (1) NiCO 3 , (2) cobalt additive, (3) sufficient water to form a paste, and optionally (4) a deflocculant.
Inventors
- 👤 John F. Jackovitz
- 👤 Joseph Seidel
- 👤 Earl A. Pantier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:45
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/52; H01M4/24; H01M4/32; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
41 words
An electrode paste consisting essentially of the admixture of: (A) anhydrous nickel carbonate, (B) up to about 50 wt.% of nickel hydroxide, based on anhydrous nickel carbonate weight, (C) a cobalt additive compound, and (D) sufficient water to form a paste.
Claim 2
Dependent Claim
41 words
An electrode paste consisting essentially of the admixture of: (A) anhydrous nickel carbonate, (B) up to about 50 wt.% of nickel hydroxide, based on anhydrous nickel carbonate weight, (C) a cobalt additive compound, and (D) sufficient water to form a paste.
Claim 3
Dependent Claim
49 words
The electrode paste of claim 1, where the cobalt compound is added in an amount of from about 1 wt.% to about 7 wt.%, based on anhydrous nickel carbonate weight, and is selected from the group consisting of CoCO 3 , Co(OH) 2 , hydrates thereof, and mixtures thereof.
Claim 4
Dependent Claim
13 words
The electrode paste of claim 1, also containing an effective amount of deflocculant.
Claim 5
Dependent Claim
33 words
The electrode material of claim 3, where the deflocculant is a polyelectrolyte material and is present in the range of about 1 wt.% to about 15 wt.% based on anhydrous nickel carbonate weight.
Claim 6
Dependent Claim
43 words
An electrode comprising a porous supporting metallic plaque containing an electrode material consisting essentially of the admixture of: (A) anhydrous nickel carbonate, (B) up to about 50 wt.% of nickel hydroxide, based on anhydrous nickel carbonate weight, and (C) a cobalt additive compound.
Claim 7
Dependent Claim
43 words
An electrode comprising a porous supporting metallic plaque containing an electrode material consisting essentially of the admixture of: (A) anhydrous nickel carbonate, (B) up to about 50 wt.% of nickel hydroxide, based on anhydrous nickel carbonate weight, and (C) a cobalt additive compound.
Claim 8
Dependent Claim
22 words
The electrode of claim 5 as positive plates in a battery comprising a plurality of alternating positive nickel plates and negative plates.
Claim 9
Dependent Claim
14 words
The electrode of claim 6, where the negative plates are iron active material plates.
Claim 10
Dependent Claim
58 words
The electrode of claim 5, where the cobalt compound is added in an amount of from about 1 wt.% to about 7 wt.%, based on anhydrous nickel carbonate weight, and is selected from the group consisting of CoCO 3 , Co(OH) 2 , hydrates thereof, and mixtures thereof, and the admixture also contains an effective amount of deflocculant.
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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) | 1987-04-17 | 1987-10-17 | 1988-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-17 | 1991-10-17 | 1992-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-17 | 1995-10-17 | 1996-04-17 | $7700.00 | Window Closed / Lapsed |