US4288507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of edge effects of oxidant electrode
Assignee: Energy Development Associates Inc
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Filing: 1980-07-21
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Granted: 1981-09-08
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Expires: 2000-07-21
Abstract
Abstract Described is an electrode assembly comprising; a. a porous electrode having a first and second exterior face with a cavity formed in the interior between said exterior faces thereby having first and second interior faces positioned opposite the first and second exterior faces; b. a counter electrode positioned facing each of the first and second exterior faces of the porous electrode; c. means for passing an oxidant through said porous electrode; and d. screening means for blocking the interior face of the porous electrode a greater amount than the blocking of the respective exterior face of the porous electrode, thereby maintaining a differential of oxidant electrode surface between the interior face and the exterior face. The electrode assembly is useful in a metal, halogen, halogen hydrate electrical energy storage device.
Inventors
- 👤 Peter Carr
- 👤 Chen H. Chi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:51
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/08; H01M12/085; H01M10/00; H01M10/36; H01M10/365; H01M4/00; H01M4/86; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
An electrode assembly comprising: a. a porous electrode (40) having a first (122a) and second (122b) exterior face with a cavity (114) formed in the interior between said exterior faces thereby having first (120a) and second (120b) interior faces positioned opposite the first and second exterior faces; b. a counter electrode (68) positioned facing each of the first and second exterior faces of the porous electrode; c. means (83) for passing an oxidant through said porous electrode; and d. screening means (126) for blocking the interior face of the porous electrode a greater amount than the blocking (124a and 124b) of the respective exterior face of the porous electrode, thereby maintaining a differential of oxidant electrode surface between the interior face and the exterior face.
Claim 2
Dependent Claim
125 words
An electrode assembly comprising: a. a porous electrode (40) having a first (122a) and second (122b) exterior face with a cavity (114) formed in the interior between said exterior faces thereby having first (120a) and second (120b) interior faces positioned opposite the first and second exterior faces; b. a counter electrode (68) positioned facing each of the first and second exterior faces of the porous electrode; c. means (83) for passing an oxidant through said porous electrode; and d. screening means (126) for blocking the interior face of the porous electrode a greater amount than the blocking (124a and 124b) of the respective exterior face of the porous electrode, thereby maintaining a differential of oxidant electrode surface between the interior face and the exterior face.
Claim 3
Dependent Claim
15 words
The assembly of claim 1 wherein the screening means is a W-shaped inert plastic material.
Claim 4
Dependent Claim
15 words
The assembly of claim 1 wherein the porous electrode is comprised of a carbonaceous material.
Claim 5
Dependent Claim
16 words
The assembly of claim 1 wherein the porous electrode is comprised of a film forming metal.
Claim 6
Dependent Claim
35 words
The electrode assembly of claim 1 wherein the differential between the screening of the exterior face and the interior face of the porous electrode ranges from 0.05 in. (1.27 mm) to 0.30 in. (7.62 mm).
Claim 7
Dependent Claim
15 words
The electrode assembly of claim 1 further comprising means for flowing electrolyte into said cavity.
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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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |