Patent US3650834A successfully refreshed from Google Patents.
US3650834A
Expired / Lapsed
US
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Aluminum bromide fused salt battery
Assignee: Standard Oil Co
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Filing: 1970-01-28
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Granted: 1972-03-21
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Expires: 1990-01-28
Abstract
Abstract The secondary electrical energy storage battery of this invention comprises a carbon cathode, an aluminum metal anode, and a fused salt electrolyte containing an aluminum halide in admixture with one or more of the halides of the alkali metals. The electrical energy storage device described has the advantage of being operable in a lower temperature range than presently known fused salt batteries.
Inventors
- 👤 Edward S Buzzelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:07
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/583; H01M10/00; H01M10/36; H01M10/39; H01M10/399; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
44 words
The electrical energy storage device of claim 1 wherein the electrolyte comprises a mixture of from about 80 to 20 parts by weight of aluminum bromide and 20 to 80 parts by weight of one or more of the halides of the alkali metals.
Claim 2
Dependent Claim
31 words
The electrical energy storage device of claim 2 wherein the cathode is composed of porous carbon having a surface area in the range of from about 10 to 2,000 meters2 /gram.
Claim 3
Dependent Claim
16 words
The electrical energy storage device of claim 2 wherein the cathode is composed of pyrolytic graphite.
Claim 4
Dependent Claim
23 words
The electrical energy storage device of claim 3 wherein the electrolyte consists of a mixture of aluminum bromide, sodium chloride and potassium chloride.
Claim 5
Dependent Claim
17 words
The electrical energy storage device of claim 3 wherein the carbon cathode contains an electrochemically-formed tellurium-carbon complex.
Claim 6
Dependent Claim
75 words
A secondary electrical energy storage device comprising in combination: a. a container, b. an electrolyte in said container consisting essentially of a mixture of aluminum bromide, sodium chloride and potassium chloride, c. a pair of spaced electrodes consisting of a porous carbon cathode and an aluminum anode immersed in said electrolyte, d. an inert, nonconductive ion-permeable separator disposed between and separating said electrodes (c), said device being operable above the melting point of the electrolyte.
Claim 7
Dependent Claim
34 words
The electrical energy storage device of claim 6 wherein tellurium is present in the carbon cathode in amounts of from about 5 to 40 percent by weight, based on the weight of the carbon.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |