Patent US4189531A successfully refreshed from Google Patents.
US4189531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Na/S reactant container with protective resin coating
Assignee: Electric Power Research Institute
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Filing: 1978-10-26
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Granted: 1980-02-19
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Expires: 1998-10-26
Abstract
Abstract In a sodium-sulfur battery, surfaces of electrically conducting aluminum in contact with sulfur-polysulfide mixtures or potentially subject to contact with such mixtures are protected from the formation of a nonconductive aluminum sulfide coating by a thin coat of electrically-conducting phenolic or poly(arylacetylene) resin which is inert to the sulfur-polysulfide mixture and adheres strongly to the aluminum surface under the conditions of use of the aluminum substrate.
Inventors
- 👤 Robert R. Dubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:44
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M10/39; H01M10/3909; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/661; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/49115; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
49 words
An improved sodium-sulfur battery having an electrically conducting aluminum surface subject to corrosive attack by the sulfur electrode, the improvement comprising said aluminum surface coated with a thin layer of a cured phenolic or poly(arylacetylene) polymer containing from about 3 to 50 weight percent of electrically conducting carbonaceous particles.
Claim 2
Dependent Claim
49 words
An improved sodium-sulfur battery having an electrically conducting aluminum surface subject to corrosive attack by the sulfur electrode, the improvement comprising said aluminum surface coated with a thin layer of a cured phenolic or poly(arylacetylene) polymer containing from about 3 to 50 weight percent of electrically conducting carbonaceous particles.
Claim 3
Dependent Claim
22 words
A battery according to claim 1, wherein said layer includes an electrically conducting carbonaceous mat, felt, cloth or paper in said resin.
Claim 4
Dependent Claim
12 words
A battery according to claim 1 wherein said carbonaceous particles are graphite.
Claim 5
Dependent Claim
53 words
An improved sodium-sulfur battery having an electrically conducting aluminum surface subject to corrosive attack by the sulfur electrode, the improvement comprising: said aluminum surface coated with a layer of from about 0.5 to 5 mils of a cured phenol-formaldehyde resin containing from about 3 to 50 weight percent of electrically conducting graphite particles.
Claim 6
Dependent Claim
53 words
An improved sodium-sulfur battery having an electrically conducting aluminum surface subject to corrosive attack by the sulfur electrode, the improvement comprising: said aluminum surface coated with a layer of from about 0.5 to 5 mils of a cured phenol-formaldehyde resin containing from about 3 to 50 weight percent of electrically conducting graphite particles.
Claim 7
Dependent Claim
24 words
An improved sodium-sulfur battery according to claim 4, wherein said layer includes an electrically conducting carbonaceous mat, felt, cloth or paper in said resin.
Claim 8
Dependent Claim
54 words
An improved sodium-sulfur battery having an electrically conducting aluminum surface subject to corrosive attack by the sulfur electrode, the improvement comprising: said aluminum surface coated with a layer of a thickness of about 0.5 to 5 mils of a poly(arylacetylene) resin containing from about 3 to 50 weight percent of electrically conducting graphite particles.
Claim 9
Dependent Claim
54 words
An improved sodium-sulfur battery having an electrically conducting aluminum surface subject to corrosive attack by the sulfur electrode, the improvement comprising: said aluminum surface coated with a layer of a thickness of about 0.5 to 5 mils of a poly(arylacetylene) resin containing from about 3 to 50 weight percent of electrically conducting graphite particles.
Claim 10
Dependent Claim
22 words
An improved sodium-sulfur battery according to claim 6, wherein said layer includes an electrically conducting carbonaceous mat or paper in said resin.
Claim 11
Independent Claim
83 words
A method for preventing corrosive attack of aluminum components of a sodium-sulfur battery while maintaining electrical conductivity to said aluminum component which comprises: fabricating an electrically conducting component for a sodium-sulfur battery from aluminum; coating at least a portion of said aluminum component with a layer of a thickness of from about 0.5 to 5 mils of a phenolic or poly(arylacetylene) resin containing from about 3 to 50 weight percent of electrically conducting carbonaceous particles; and assembling said sodium-sulfur battery with said component.
Claim 12
Independent Claim
83 words
A method for preventing corrosive attack of aluminum components of a sodium-sulfur battery while maintaining electrical conductivity to said aluminum component which comprises: fabricating an electrically conducting component for a sodium-sulfur battery from aluminum; coating at least a portion of said aluminum component with a layer of a thickness of from about 0.5 to 5 mils of a phenolic or poly(arylacetylene) resin containing from about 3 to 50 weight percent of electrically conducting carbonaceous particles; and assembling said sodium-sulfur battery with said component.
Claim 13
Dependent Claim
13 words
A method according to claim 8 wherein said resin is a phenolic resin.
Claim 14
Dependent Claim
13 words
A method according to claim 8, wherein said resin is a poly(arylacetylene) resin.
Claim 15
Independent Claim
29 words
A method according to any of claims 9 and 10, wherein said carbonaceous particles are graphite and said curing is at a temperature in excess of about 100° C.
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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) | 1983-02-18 | 1983-08-20 | 1984-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-18 | 1987-08-20 | 1988-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-18 | 1991-08-20 | 1992-02-19 | $7700.00 | Window Closed / Lapsed |