US4906537A
Expired / Lapsed
US
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Secondary cell
Assignee: Minolta Co Ltd
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Filing: 1988-10-20
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Granted: 1990-03-06
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Expires: 2008-10-20
Abstract
Abstract The invention provides a new secondary cell with a solid electrolyte layer wherein the solid electrolyte layer comprises a plasma-polymerized layer of an organic compound containing an alkali metal ion and an element with high electronegativity.
Inventors
- 👤 Hideo Hotomi
- 👤 Yumiko Takedomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:53
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/052; H01M10/056; H01M10/0564; H01M10/0565; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
40 words
A secondary cell comprising a negative electrode, a solid electrolyte layer, and a positive electrode, wherein the solid electrolyte layer comprises a plasma-polymerized layer of an organic compound which comprises an alkali metal ion and an element having high electronegativity.
Claim 2
Dependent Claim
40 words
A secondary cell comprising a negative electrode, a solid electrolyte layer, and a positive electrode, wherein the solid electrolyte layer comprises a plasma-polymerized layer of an organic compound which comprises an alkali metal ion and an element having high electronegativity.
Claim 3
Dependent Claim
16 words
A secondary cell of the claim 1, wherein the alkali metal ion is a lithium ion.
Claim 4
Dependent Claim
20 words
A secondary cell of the claim 1, wherein the element having high electronegativity is oxygen, nitrogen, sulfur, fluorine or chlorine.
Claim 5
Dependent Claim
22 words
A secondary cell of the claim 1, wherein the negative electrode is made of an alkali metal-containing metal material or Wood's metal.
Claim 6
Dependent Claim
18 words
A secondary cell of the claim 1, wherein the positive electrode is made of an electroconductive metal oxide.
Claim 7
Dependent Claim
33 words
A secondary cell of the claim 1, wherein the alkali metal ion is contained at a content of 7-65 atomic % on the basis of total number of atoms in the solid electrolyte.
Claim 8
Dependent Claim
48 words
A thin film secondary cell comprising a negative electrode, a solid electrolyte layer which is 5-100 μm in thickness, and a positive electrode, wherein the solid electrolyte layer comprises a plasma-polymerized layer of an organic compound which comprises an alkali metal ion and an element having high electronegativity.
Claim 9
Dependent Claim
48 words
A thin film secondary cell comprising a negative electrode, a solid electrolyte layer which is 5-100 μm in thickness, and a positive electrode, wherein the solid electrolyte layer comprises a plasma-polymerized layer of an organic compound which comprises an alkali metal ion and an element having high electronegativity.
Claim 10
Dependent Claim
33 words
A secondary cell of the claim 7, wherein the alkali metal ion is contained at a content of 7-65 atomic % on the basis of total number of atoms in the solid electrolyte.
Claim 11
Dependent Claim
59 words
A secondary cell comprising a negative electrode, a solid electrolyte layer, a positive electrode, and a package, wherein the solid electrolyte layer comprises a plasma-polymerized layer of an organic compound which comprises an alkali metal ion and an element having high electonegativity, said package comprising upper and lower separate caps and a resin introduced for encapsulation between said caps.
Claim 12
Dependent Claim
59 words
A secondary cell comprising a negative electrode, a solid electrolyte layer, a positive electrode, and a package, wherein the solid electrolyte layer comprises a plasma-polymerized layer of an organic compound which comprises an alkali metal ion and an element having high electonegativity, said package comprising upper and lower separate caps and a resin introduced for encapsulation between said caps.
Claim 13
Dependent Claim
16 words
A secondary cell of the claim 9, wherein the package is formed by an electroconductive material.
Claim 14
Dependent Claim
20 words
A secondary cell of the claim 10, wherein the upper separate cap is electrically insulated from the lower separate cap.
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) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |