US4064332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a nickel hydroxide electrode
Assignee: Nife Jungner AB
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Filing: 1976-11-12
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Granted: 1977-12-20
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Expires: 1996-11-12
Abstract
Abstract The invention relates to a new method of manufacturing a nickel hydroxide electrode wherein the electrochemically active nickel hydroxide is formed in the pores of a nickel structure by reacting the nickel of said structure with a gas which forms a salt therewith in situ capable of reacting with an alkali metal hydroxide to form nickel hydroxide. The invention also relates to the prepared electrode and to an alkaline storage battery containing the same as well as to the use of said electrode in an alkaline storage battery.
Inventors
- 👤 Erik Wiktor Elfwing
- 👤 Lars Harry Swenne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:25
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/32; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
88 words
In the method of manufacturing a nickel hydroxide electrode having a sintered, porous nickel structure by forming electrochemically active material in the pores of the structure through activation of nickel from the structure, the improvement which comprises reacting the nickel of the structure with a gas which forms a nickel salt in situ capable of reacting with an alkali metal hydroxide to form nickel hydroxide and then reacting said salt with an alkali metal hydroxide to form nickel hydroxide in the pores of the nickel of said structure.
Claim 2
Dependent Claim
88 words
In the method of manufacturing a nickel hydroxide electrode having a sintered, porous nickel structure by forming electrochemically active material in the pores of the structure through activation of nickel from the structure, the improvement which comprises reacting the nickel of the structure with a gas which forms a nickel salt in situ capable of reacting with an alkali metal hydroxide to form nickel hydroxide and then reacting said salt with an alkali metal hydroxide to form nickel hydroxide in the pores of the nickel of said structure.
Claim 3
Dependent Claim
14 words
The method as claimed in claim 1, wherein the gas is a hydrogen halogenide.
Claim 4
Dependent Claim
13 words
The method as claimed in claim 1, wherein the gas is a halogen.
Claim 5
Dependent Claim
15 words
The method as claimed in claim 1, wherein the treatment is performed at elevated temperatures.
Claim 6
Dependent Claim
24 words
The method as claimed in claim 1, wherein the treatment is performed in a tube which is resistant to the gas and temperature used.
Claim 7
Dependent Claim
35 words
The method as claimed in claim 1 wherein the concentration of the gas used at the treatment is adjusted by incorporating a gaseous substance selected from the group consisting of aqueous steam and inert gases.
Claim 8
Dependent Claim
13 words
The method as claimed in claim 2, wherein the gas is hydrogen chloride.
Claim 9
Dependent Claim
12 words
The method as claimed in claim 3, wherein the gas is chlorine.
Claim 10
Dependent Claim
21 words
The method as claimed in claim 4, wherein the treatment is performed at a temperature within the range of 200-700° C.
Claim 11
Dependent Claim
17 words
The method as claimed in claim 5, wherein the used gas is recycled in a closed system.
Claim 12
Dependent Claim
33 words
The method as claimed in claim 10, wherein a hydrogen halogenide is used and wherein hydrogen liberated during the treatment is reconverted into hydrogen halogenide by incorporating the appropriate halogen into the system.
Claim 13
Dependent Claim
13 words
The method as claimed in claim 6, wherein the inert gas is nitrogen.
Claim 14
Dependent Claim
85 words
A porous nickel hydroxide electrode produced by reacting a sintered, porous nickel structure with a gas which forms a nickel salt in situ capable of reacting with an alkali metal hydroxide to form nickel hydroxide, then reacting said salt with an alkali metal hydroxide to form a porous nickel hydroxide structure, all of the nickel hydroxide in said porous nickel hydroxide structure having been formed from the nickel in said sintered, porous nickel structure, and then forming said porous nickel hydroxide structure into an electrode.
Claim 15
Dependent Claim
85 words
A porous nickel hydroxide electrode produced by reacting a sintered, porous nickel structure with a gas which forms a nickel salt in situ capable of reacting with an alkali metal hydroxide to form nickel hydroxide, then reacting said salt with an alkali metal hydroxide to form a porous nickel hydroxide structure, all of the nickel hydroxide in said porous nickel hydroxide structure having been formed from the nickel in said sintered, porous nickel structure, and then forming said porous nickel hydroxide structure into an electrode.
Claim 16
Dependent Claim
14 words
An alkaline storage battery comprising at least one nickel hydroxide electrode of claim 13.
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 |