Patent US4224392A successfully refreshed from Google Patents.
US4224392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel-oxide electrode structure and method of making same
Assignee: Individual
•
Filing: 1977-12-16
•
Granted: 1980-09-23
•
Expires: 1997-12-16
Abstract
Abstract Nickel-oxide electrode structures particularly suitable for use in mobile energy-storage applications comprising a highly porous carbon matrix having electrochemically active nickel hydroxide, i.e., NiO.OH, deposited within and in electrical contact with the carbon matrix sandwiched between two thin rigid supports, preferably magnesium. The surface of the support in contact with the carbon matrix can be coated with a metal such as gold to provide electrical conductivity. The electrodes are economically manufactured to provide a thick electrode having high porosity and large pore size while maintaining structural strength and stability, and which includes a large amount of electrochemically active nickel hydroxide therein.
Inventors
- 👤 Harry G. Oswin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:15
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/06; H01M10/12; H01M10/24; H01M10/30; H01M4/00; H01M4/02; H01M4/24; H01M4/32; H01M4/64; H01M50/00; H01M50/40; H01M50/46; H01M2300/00; H01M2300/0002; H01M2300/0014; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
42 words
An electrode comprising a porous carbon matrix having a porosity of at least about 80 percent having deposited on and within said matrix an electrochemically active nickel oxide, and a rigid porous magnesium support member on each major surface of said matrix.
Claim 2
Dependent Claim
42 words
An electrode comprising a porous carbon matrix having a porosity of at least about 80 percent having deposited on and within said matrix an electrochemically active nickel oxide, and a rigid porous magnesium support member on each major surface of said matrix.
Claim 3
Dependent Claim
17 words
The electrode of claim 1 wherein the porosity of said carbon matrix is above about 90 percent.
Claim 4
Dependent Claim
12 words
The electrode of claim 2 wherein the carbon matrix comprises carbon filaments.
Claim 5
Dependent Claim
23 words
The electrode of claim 3 wherein said magnesium support has a conductive coating on the surface thereof in contact with said carbon matrix.
Claim 6
Dependent Claim
10 words
The electrode of claim 4 wherein said coating is gold.
Claim 7
Dependent Claim
10 words
The electrode of claim 4 wherein said coating is nickel.
Claim 8
Dependent Claim
18 words
A battery comprising a housing, an electrode of claim 1, a counter-electrode, and an electrolyte separating said electrodes.
Claim 9
Dependent Claim
19 words
The battery of claim 7 wherein the counter-electrode is a zinc electrode and the electrolyte is an alkali hydroxide.
Claim 10
Dependent Claim
19 words
The battery of claim 7 wherein the counter-electrode is a hydrogen electrode and the electrolyte is an alkali hydroxide.
Claim 11
Dependent Claim
55 words
An electrode comprising a porous carbon matrix having a porosity of at least about 80 percent having deposited on and within said matrix an electrochemically active material selected from the group consisting of zinc, cadmium, lead, nickel, and electrochemically active compounds thereof, and a rigid porous support member on each major surface of said matrix.
Claim 12
Dependent Claim
55 words
An electrode comprising a porous carbon matrix having a porosity of at least about 80 percent having deposited on and within said matrix an electrochemically active material selected from the group consisting of zinc, cadmium, lead, nickel, and electrochemically active compounds thereof, and a rigid porous support member on each major surface of said matrix.
Claim 13
Dependent Claim
12 words
The electrode of claim 10 wherein the electrochemically active material is zinc.
Claim 14
Dependent Claim
11 words
The electrode of claim 11 wherein the support member is magnesium.
Claim 15
Dependent Claim
23 words
The electrode of claim 12 wherein the magnesium support has a conductive coating on the surface thereof in contact with the carbon matrix.
Claim 16
Dependent Claim
12 words
The electrode of claim 10 wherein the electrochemically active material is lead.
References Cited (Backward Citations)
US3321286A
Cited
US3657014A
Cited
US3671319A
Cited
US4052540A
Cited
US3933520A
Cited
US4048408A
Cited
US4011374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |