Patent US4808496A successfully refreshed from Google Patents.
US4808496A
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Electrode construction for solid state electrochemical cell
Assignee: NORSONS INTERNATIONAL LLC
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Filing: 1987-03-13
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Granted: 1989-02-28
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Expires: 2007-03-13
Abstract
Abstract Electrodes for a solid-state battery at least one of which comprises a layer of ionic and electronic conductive polymer spheres. Each polymer sphere consists of an active electrode material core encapsulated in an ionically and electronically conductive polymeric material.
Inventors
- 👤 Henry F. Hope
- 👤 Stephen F. Hope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:22
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/052; H01M10/056; H01M10/0564; H01M10/0565; H01M4/00; H01M4/02; H01M4/36; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
66 words
A solid state electrochemical cell having at least two electrodes, one of which is an anode and one of which is a cathode, and a polymeric electrolyte, wherein at least one of said electrodes is comprised of a multiplicity of spheres, each sphere consisting of an active electrode material core encapsulated in an electronic and ionic conducting polymer film forming an electronic and ionic conducting network.
Claim 2
Dependent Claim
66 words
A solid state electrochemical cell having at least two electrodes, one of which is an anode and one of which is a cathode, and a polymeric electrolyte, wherein at least one of said electrodes is comprised of a multiplicity of spheres, each sphere consisting of an active electrode material core encapsulated in an electronic and ionic conducting polymer film forming an electronic and ionic conducting network.
Claim 3
Dependent Claim
23 words
A solid state electrochemical cell as defined in claim 1 in which said electrode which is comprised of said spheres is said cathode.
Claim 4
Dependent Claim
23 words
A solid state electrochemical cell as defined in claim 1 in which said electrode which is comprised of said spheres is said anode.
Claim 5
Dependent Claim
21 words
The solid state electrochemical cell of claim 2 wherein said active electrode material is a transition metal oxide, sulfide, or selenide.
Claim 6
Dependent Claim
17 words
The solid state electrochemical cell of claim 4 wherein said active electrode material is a vanadium oxide.
Claim 7
Dependent Claim
24 words
The solid state electrochemical cell of claim 5 wherein said electronic and conductive polymer includes an ionically conductive salt and an electronically conductive filler.
Claim 8
Dependent Claim
16 words
The solid state electrochemical cell of claim 6 wherein said electronically conductive filler is carbon black.
Claim 9
Dependent Claim
19 words
The solid state electrochemical cell of claim 6 wherein said salt is a lithium, sodium, potassium, or ammonium salt.
Claim 10
Dependent Claim
61 words
The solid state electrochemical cell of claim 8 wherein said salt is a salt of an ion selected from the group consisting of I - , Br - , SCN - , ClO 4 - , BF 4 - , PF 6 - , AsF 6 - , CF 3 CO 2 - , and CF 3 SO 3 - .
Claim 11
Dependent Claim
15 words
The solid state electrochemical cell of claim 9 wherein said salt is a lithium salt.
Claim 12
Dependent Claim
14 words
The solid state electrochemical cell of claim 10 wherein said polymer is polyethylene oxide.
Claim 13
Dependent Claim
18 words
The solid state electrochemical cell of claim 1 wherein said anode is a lithium or lithium alloy anode.
Claim 14
Dependent Claim
38 words
The solid state electrochemical cell of claim 1 wherein said polymeric electrolyte comprises a salt and a polymer, and said salt and said polymer are present in said ionically and electronically conductive film encapsulating said active electrode material.
Claim 15
Dependent Claim
16 words
The solid state electrochemical cell of claim 3 in which said active electrode material is lithium.
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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) | 1992-02-28 | 1992-08-29 | 1993-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-28 | 1996-08-29 | 1997-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-28 | 2000-08-29 | 2001-02-28 | $7700.00 | Window Closed / Lapsed |