US4294898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state battery
Assignee: Lenovo Singapore Pte Ltd
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Filing: 1980-05-05
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Granted: 1981-10-13
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Expires: 2000-05-05
Abstract
Abstract A solid state rechargeable battery containing an alkali metal-containing electrode, a solid electrolyte, and an intercalation graphite-containing layer.
Inventors
- 👤 Allan M. Hartstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:02
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M10/00; H01M10/05; H01M10/056; H01M10/0561; H01M10/0562; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/583; H01M4/587; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
123 words
A solid state rechargeable battery comprising at least three layers including a first layer consisting essentially of an alkali metal-containing electrode in the solid state, a second solid electrolyte layer adjacent said first layer, and a third layer adjacent said second solid electrolyte layer consisting essentially of intercalation graphite adapted to accept ions of the alkali metal from the first layer, wherein said third layer is free from materials which interface to an undesirable extent with the ability of the graphite to intercalate the ions of said alkali metal therein, and wherein the C-axis of the solid electrolyte and at least a portion of the C-axis of said graphite layer are perpendicular to the flow of the alkali metal ions in the battery.
Claim 2
Dependent Claim
123 words
A solid state rechargeable battery comprising at least three layers including a first layer consisting essentially of an alkali metal-containing electrode in the solid state, a second solid electrolyte layer adjacent said first layer, and a third layer adjacent said second solid electrolyte layer consisting essentially of intercalation graphite adapted to accept ions of the alkali metal from the first layer, wherein said third layer is free from materials which interface to an undesirable extent with the ability of the graphite to intercalate the ions of said alkali metal therein, and wherein the C-axis of the solid electrolyte and at least a portion of the C-axis of said graphite layer are perpendicular to the flow of the alkali metal ions in the battery.
Claim 3
Dependent Claim
14 words
The battery of claim 1 wherein said alkali metal electrode contains sodium or potassium.
Claim 4
Dependent Claim
13 words
The rechargeable battery of claim 1 wherein said alkali metal electrode contains potassium.
Claim 5
Dependent Claim
12 words
The battery of claim 1 wherein said alkali metal electrode contains sodium.
Claim 6
Dependent Claim
19 words
The battery of claim 1 wherein said electrolyte layer is a metal β alumina or a metal β" gallate.
Claim 7
Dependent Claim
20 words
The battery of claim 1 wherein said electrolyte is an alkali metal β alumina or an alkali metal β" gallate.
Claim 8
Dependent Claim
18 words
The battery of claim 1 wherein said electrolyte is potassium alumina and said alkali metal electrode is potassium.
Claim 9
Dependent Claim
13 words
The battery of claim 1 wherein platinum leads are connected to the electrodes.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-12 | 1985-04-13 | 1985-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-12 | 1989-04-13 | 1989-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-12 | 1993-04-13 | 1993-10-13 | $7700.00 | Window Closed / Lapsed |