US4216274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery with hydrogen absorbing material of the formula LnM5
Assignee: US Philips Corp
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Filing: 1977-02-14
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Granted: 1980-08-05
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Expires: 1997-02-14
Abstract
Abstract An electrochemical energy conversion device, i.e. a galvanic cell using a hydrogen absorbing material to provide either a source of energy, or to absorb hydrogen to avoid overpressure in the cell. This hydrogen absorbing material is a compound of the formula LnM5 in which Ln represents a lanthanide metal and M is either cobalt or nickel.
Inventors
- 👤 Hugo A. C. M. Bruning
- 👤 Johannes H. N. Van Vocht
- 👤 Frans F. Westendorp
- 👤 Hinne Zijlstra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:04
CPC Classifications
F; F17; F17C; F17C11/00; F17C11/005; C; C01; C01B; C01B3/00; C01B3/0005; C01B3/001; C01B3/0018; C01B3/0031; C01B3/0047; C01B3/0057; C01B3/50; C01B3/508; C01B4/00; C22; C22C; C22C19/00; C22C28/00; C22C43/00; H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M4/383; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/32; Y10; Y10S; Y10S420/00; Y10S420/90
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
A battery comprising a positive electrode, a negative electrode, an aqueous electrolyte and a hydrogen absorbing material consisting of a substance with the nominal formula LnM 5 in which Ln is at least one lanthanide metal and M is at least one metal selected from the group consisting of nickel and cobalt.
Claim 2
Dependent Claim
52 words
A battery comprising a positive electrode, a negative electrode, an aqueous electrolyte and a hydrogen absorbing material consisting of a substance with the nominal formula LnM 5 in which Ln is at least one lanthanide metal and M is at least one metal selected from the group consisting of nickel and cobalt.
Claim 3
Dependent Claim
14 words
The device of claim 1 in which Ln is a mixture of lanthanide metals.
Claim 4
Dependent Claim
15 words
The device of claim 1 in which M is a mixture of nickel and cobalt.
Claim 5
Dependent Claim
13 words
The device of claim 1 in which LnM 5 is LaNi 5 .
Claim 6
Dependent Claim
13 words
The device of claim 1 in which the device is a nickel-cadmium battery.
Claim 7
Dependent Claim
14 words
The battery as claimed in claim 1 in which the positive electrode is zinc.
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) | 1983-08-05 | 1984-02-04 | 1984-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-05 | 1988-02-04 | 1988-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-05 | 1992-02-04 | 1992-08-05 | $7700.00 | Window Closed / Lapsed |