US3597829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a nickel hydroxide electrode
Assignee: United States Department of the Army
•
Filing: 1969-03-18
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Granted: 1971-08-10
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Expires: 1989-03-18
Abstract
Abstract A nickel hydroxide electrode suitable for use in an alkaline nickel battery is made by pasting a solvent dispersion of nickel hydroxide onto a nickel foam matrix, drying the pasted matrix, pressing the dried pasted matrix to the required size, and attaching an electrically conductive tab to the electrode.
Inventors
- 👤 Otto C Wagner
- 👤 Martin J Sulkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:05
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/32; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/40; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49174
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
14 words
A method to claim 1 wherein conductive carbon is mixed with the nickel hydroxide.
Claim 2
Dependent Claim
8 words
spreading the paste onto a nickel foam matrix,
Claim 3
Dependent Claim
8 words
spreading the paste onto a nickel foam matrix,
Claim 4
Dependent Claim
14 words
drying the pasted matrix at a temperature above the boiling temperature of the solvent,
Claim 5
Dependent Claim
11 words
A method according to claim 1 wherein toluene is the solvent.
Claim 6
Dependent Claim
11 words
drying the pasted matrix at about 80* to about 120* C.,
Claim 7
Dependent Claim
34 words
pressing the dried pasted matrix under a pressure of about one-half ton to about 2 tons per square inch so that the porosity of the finished electrode is about 40 to 60 percent, and
Claim 8
Independent Claim
12 words
A method of making a nickel hydroxide electrode including the steps of:
Claim 9
Dependent Claim
9 words
pressing the dried pasted matrix to electrode size, and
Claim 10
Dependent Claim
8 words
attaching an electrically conductive tab to the electrode.
Claim 11
Dependent Claim
13 words
attaching an electrically conductive tab to the compressed upper corner of the electrode.
References Cited (Backward Citations)
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Cited
US3009979A
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US3024296A
Cited
US3184339A
Cited
US3436267A
Cited
US3393096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |