US4307162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithium alloy coating for anode collector in lithium batteries
Assignee: Medtronic Inc
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Filing: 1980-09-25
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Granted: 1981-12-22
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Expires: 2000-09-25
Abstract
Abstract Protective coatings for anode collector in lithium batteries.
Inventors
- 👤 Lee F. Athearn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:55
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/183; H01M50/186; H01M50/19; H01M50/191; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
40 words
In a lithium battery anode and current collector combination, the improvement comprising: a collector coating comprised of a lithium alloy which, when coupled with a battery cathode, discharges less readily than the lithium anode when coupled with the same cathode.
Claim 2
Dependent Claim
40 words
In a lithium battery anode and current collector combination, the improvement comprising: a collector coating comprised of a lithium alloy which, when coupled with a battery cathode, discharges less readily than the lithium anode when coupled with the same cathode.
Claim 3
Dependent Claim
11 words
The combination of claim 1 wherein the lithium alloy is lithium-rich.
Claim 4
Dependent Claim
14 words
The combination of claim 1 wherein the alloy comprises lithium and calcium, predominantly lithium.
Claim 5
Dependent Claim
14 words
The combination of claim 1 wherein the alloy comprises lithium and copper, predominantly lithium.
Claim 6
Dependent Claim
14 words
The combination of claim 1 wherein the alloy comprises lithium and magnesium predominantly lithium.
Claim 7
Dependent Claim
25 words
The combination of any of the preceding claims 3, 4 or 5 wherein the minor constituent of the alloy comprises about 2.5 mole percent thereof.
References Cited (Backward Citations)
US4212930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |