US4063576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat treatment of NiOx utilized in pressed nickel electrodes
Assignee: Whittaker Technical Products Inc
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Filing: 1976-08-26
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Granted: 1977-12-20
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Expires: 1996-08-26
Abstract
Abstract An improvement in the discharge capacity of pressed nickel electrodes which comprise a NiO x /Co/binder admixture pressed into a current collector is obtained by heating the NiO x to a temperature on the order of 125° C. to 175° C. either before or after incorporating the NiO x in the electrode.
Inventors
- 👤 Ronald G. Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:07
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: 14
Claim 1
Independent Claim
65 words
The method of making an improved pressed nickel electrode, said method comprising forming a dry admixture of the berthollide NiO x as the active electrode material, and a binder therefor, and pressing said admixture into a current collector, said method including the step of: heating said NiO x at a temperature between about 125° C. and about 175° C. for at least about 15 minutes.
Claim 2
Independent Claim
65 words
The method of making an improved pressed nickel electrode, said method comprising forming a dry admixture of the berthollide NiO x as the active electrode material, and a binder therefor, and pressing said admixture into a current collector, said method including the step of: heating said NiO x at a temperature between about 125° C. and about 175° C. for at least about 15 minutes.
Claim 3
Dependent Claim
22 words
The method of claim 1 wherein said NiO x is heated at said temperature prior to its incorporation into said nickel electrode.
Claim 4
Dependent Claim
20 words
The method of claim 1 wherein said NiO x is heated at said temperature after its incorporation into said electrode.
Claim 5
Dependent Claim
25 words
The method of claim 1 wherein said NiO x is heated at said temperature for a period between about 15 minutes and about 2 hours.
Claim 6
Dependent Claim
27 words
The method of claim 1 wherein said berthollide NiO x contains about 55% by weight nickel and x has a value between about 1.65 and about 1.8.
Claim 7
Independent Claim
76 words
The method of making an improved pressed nickel electrode comprising forming a dry admixture of the berthollide NiO x , a cobalt-containing member of the group consisting of the berthollide CoO x and Co(OH) 2 and a binder therefor, and pressing said admixture into a current collector, said method including the step of: heating said NiO x at a temperature between about 125° C. for at least about 15 minutes without decomposing said Co(OH) 2 .
Claim 8
Independent Claim
76 words
The method of making an improved pressed nickel electrode comprising forming a dry admixture of the berthollide NiO x , a cobalt-containing member of the group consisting of the berthollide CoO x and Co(OH) 2 and a binder therefor, and pressing said admixture into a current collector, said method including the step of: heating said NiO x at a temperature between about 125° C. for at least about 15 minutes without decomposing said Co(OH) 2 .
Claim 9
Dependent Claim
20 words
The method of claim 6 wherein said NiO x is heated at said temperature before admixture with said cobalt-containing member.
Claim 10
Dependent Claim
28 words
The method of claim 6 wherein said NiO x is heated at said temperature after admixture with said cobalt-containing member and said member in said CoO x .
Claim 11
Dependent Claim
22 words
The method of claim 6 wherein said NiO x is heated at said temperature for about 15 minutes to about 2 hours.
Claim 12
Dependent Claim
26 words
The method of claim 6 wherein said NiO x contains about 55% by weight nickel and x has a value between about 1.65 and about 1.8.
Claim 13
Dependent Claim
12 words
A pressed nickel electrode made according to the method of claim 1.
Claim 14
Dependent Claim
12 words
A pressed nickel electrode made according to the method of claim 6.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |