US4358515A
Expired / Lapsed
US
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Phosphorus-containing solid state electrolyte
Assignee: Spectrum Brands Inc
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Filing: 1981-09-11
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Granted: 1982-11-09
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Expires: 2001-09-11
Abstract
Abstract An electrolyte for a solid state lithium electrochemical cell comprising an interdiffused mixture of PI 3 or BI 3 and LiI and optionally Al 2 O 3 and cells containing such electrolyte.
Inventors
- 👤 Ashok V. Joshi
- 👤 Arun D. Jatkar
- 👤 William P. Sholette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:09
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
67 words
A solid state electrochemical cell having an anode selected from the group of lithium and lithium rich alloys, a solid state electrolyte comprising, in mole percent, an interdiffused mixture of about 0.4% to about 16% of a material selected from the group of phosphorus triiodide, boron triiodide and mixtures thereof, about 33% to about 99% lithium iodide and up to about 60% alumina and a compatible cathode.
Claim 2
Dependent Claim
67 words
A solid state electrochemical cell having an anode selected from the group of lithium and lithium rich alloys, a solid state electrolyte comprising, in mole percent, an interdiffused mixture of about 0.4% to about 16% of a material selected from the group of phosphorus triiodide, boron triiodide and mixtures thereof, about 33% to about 99% lithium iodide and up to about 60% alumina and a compatible cathode.
Claim 3
Dependent Claim
23 words
A solid state electrochemical cell as in claim 1 wherein the electrolyte contains, in mole percent, about 0.8% to about 12% phosphorus triiodide.
Claim 4
Dependent Claim
28 words
A solid state electrochemical cell as in claim 1 wherein the electrolyte contains, in mole percent, about 63% lithium iodide, about 1.3% phosphorus triiodide and about 35% alumina.
Claim 5
Dependent Claim
48 words
A solid state electrochemical cell as in claim 1 wherein the electrolyte contains, in mole percent, about 50% to about 65% lithium iodide, about 1% to about 1.5% of a material from the group of phosphorus triiodide and boron triiodide and about 35% to about 45% of alumina.
References Cited (Backward Citations)
US3837920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-08 | 1986-05-10 | 1986-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-08 | 1990-05-10 | 1990-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-08 | 1994-05-10 | 1994-11-09 | $7700.00 | Window Closed / Lapsed |