US4379814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet electrode for electrochemical systems
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1981-06-01
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Granted: 1983-04-12
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Expires: 2001-06-01
Abstract
Abstract An electrochemical cell construction features a novel co-extruded plastic electrode in an interleaved construction with a novel integral separator-spacer. Also featured is a leak and impact resistant construction for preventing the spill of corrosive materials in the event of rupture.
Inventors
- 👤 Hsue C. Tsien
- 👤 Kenneth R. Newby
- 👤 Patrick G. Grimes
- 👤 Richard J. Bellows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:56
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/88; H01M4/8825; H01M4/8864; H01M10/00; H01M10/36; H01M10/365; H01M6/00; H01M6/24; H01M8/00; H01M8/02; H01M8/24; H01M8/241; H01M8/2459; H01M8/2465; H01M8/2483; H01M8/0202; H01M8/0204; H01M8/0213; H01M8/0271; H01M8/0273; H01M8/0289; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
44 words
An extruded sheet electrode for use in an electrochemical cell comprising a sheet composite of coextruded electrically conductive and non-conductive plastic materials, said conductive plastic material comprising a mid-portion of said sheet, and said non-conductive plastic material comprising coextruded side portions of said sheet.
Claim 2
Dependent Claim
44 words
An extruded sheet electrode for use in an electrochemical cell comprising a sheet composite of coextruded electrically conductive and non-conductive plastic materials, said conductive plastic material comprising a mid-portion of said sheet, and said non-conductive plastic material comprising coextruded side portions of said sheet.
Claim 3
Dependent Claim
20 words
The extruded sheet electrode of claim 1, wherein said side portions are narrow strips with respect to said larger mid-portion.
Claim 4
Dependent Claim
14 words
The extruded sheet electrode of claim 1, wherein said electrode is a bipolar electrode.
Claim 5
Dependent Claim
14 words
The extruded sheet electrode of claim 1, wherein said electrode is a monopolar electrode.
Claim 6
Dependent Claim
14 words
The extruded sheet electrode of claim 1, wherein said non-conductive plastic material comprises polypropylene.
Claim 7
Dependent Claim
14 words
The extruded sheet electrode of claim 1, wherein said non-conductive plastic material comprises polyethylene.
Claim 8
Dependent Claim
18 words
The extruded sheet electrode of claim 1, wherein said non-conductive plastic material comprises co-polymers of polypropylene and polyethylene.
Claim 9
Dependent Claim
16 words
The extruded sheet electrode of claim 1, wherein said conductive plastic material comprises a carbon plastic.
Claim 10
Dependent Claim
19 words
The extruded sheet electrode of claim 1, wherein said conductive plastic material is inert to bromine and compounds thereof.
Claim 11
Dependent Claim
14 words
The extruded sheet electrode of claim 1, wherein said conductive material comprises a polyolefin.
Claim 12
Dependent Claim
16 words
The extruded sheet electrode of claim 1, wherein said electrode forms part of a zinc-bromine cell.
Claim 13
Dependent Claim
35 words
The extruded sheet electrode of claim 1, wherein said conductive material comprises by weight approximately 100 parts polyolefin, 25 parts conductive carbon, 5 parts each carbon and glass fiber, and 1 part fumed silica powder.
Claim 14
Dependent Claim
15 words
The extruded sheet electrode of claim 1, wherein said extruded plastic material is hot formed.
Claim 15
Dependent Claim
14 words
The extruded sheet electrode of claim 1, wherein said extruded plastic material is dimpled.
Claim 16
Dependent Claim
44 words
An extruded sheet electrode for use in an electrochemical cell comprising a sheet composite of coextruded electrically conductive and non-conductive materials, said conductive material plastic (non-conductive) comprising a mid-portion of said sheet, and said non-conductive material comprising insulative coextruded side portions of said sheet.
Claim 17
Dependent Claim
44 words
An extruded sheet electrode for use in an electrochemical cell comprising a sheet composite of coextruded electrically conductive and non-conductive materials, said conductive material plastic (non-conductive) comprising a mid-portion of said sheet, and said non-conductive material comprising insulative coextruded side portions of said sheet.
Claim 18
Dependent Claim
20 words
The extruded sheet electrode of claim 15, wherein said side portions are narrow strips with respect to said larger mid-portion.
Claim 19
Dependent Claim
14 words
The extruded sheet electrode of claim 15, wherein said electrode is a bipolar electrode.
Claim 20
Dependent Claim
14 words
The extruded sheet electrode of claim 15, wherein said electrode is a monopolar electrode.
Claim 21
Dependent Claim
13 words
The extruded sheet electrode of claim 15, wherein said non-conductive material comprises polypropylene.
Claim 22
Dependent Claim
13 words
The extruded sheet electrode of claim 15, wherein said non-conductive material comprises polyethylene.
Claim 23
Dependent Claim
15 words
The extruded sheet electrode of claim 15, wherein said conductive material comprises a cabon plastic.
Claim 24
Dependent Claim
18 words
The extruded sheet electrode of claim 15, wherein said conductive material is inert to bromine and compounds thereof.
Claim 25
Dependent Claim
14 words
The extruded sheet electrode of claim 15, wherein said conductive material comprises a polyolefin.
Claim 26
Dependent Claim
16 words
The extruded sheet electrode of claim 15, wherein said electrode forms part of a zinc-bromine cell.
Claim 27
Dependent Claim
35 words
The extruded sheet electrode of claim 15, wherein said conductive material comprises by weight approximately 100 parts polyolefin, 25 parts conductive carbon, 5 parts each carbon and glass fiber, and 1 part fumed silica powder.
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) | 1986-04-11 | 1986-10-11 | 1987-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-11 | 1990-10-11 | 1991-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-11 | 1994-10-11 | 1995-04-12 | $7700.00 | Window Closed / Lapsed |