US3607013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of nickel fluoride
Assignee: FMC Corp
•
Filing: 1969-02-10
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Granted: 1971-09-21
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Expires: 1989-02-10
Abstract
Abstract A highly active, anhydrous nickel fluoride which is resistant to pickup of atmospheric water and is superior as a battery element in high energy lithium-nickel fluoride batteries, is produced by passing anhydrous gaseous hydrogen fluoride over amorphous basic nickel carbonate at a temperature of between 150*-300* C. and preferably 225*-250* C.
Inventors
- 👤 Jerome Saldick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:41
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/582; C; C01; C01G; C01G53/00; C01G53/08; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
27 words
The process of claim 1 in which the reaction is carried out by continuously flowing anhydrous gaseous hydrogen fluoride over amorphous nickel carbonate in finely powdered form.
Claim 2
Dependent Claim
31 words
The process of claim 1 in which the reaction is carried out in an iron-free reactor so as to prevent iron impurities from contaminating the nickel fluoride produced during the reaction.
Claim 3
Dependent Claim
19 words
The process of claim 1 in which the reaction is carried out at a temperature of abouT 225*-250* C.
Claim 4
Dependent Claim
13 words
The process of claim 3 wherein the iron-free reactor is a copper reactor.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |