US3847667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkali metal-porous conductive carbon battery having a molten alkali metal chloraluminate electrolyte
Assignee: Beta Research and Development Ltd
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Filing: 1972-09-26
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Granted: 1974-11-12
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Expires: 1992-09-26
Abstract
Abstract A secondary battery utilizing a molten alkali metal anode, a porous conductive carbon cathode, a molten alkali metal chloraluminate electrolyte and a selectively-ionically-conductive separator positioned between the anode and the cathode and a process for producing alkali metal therewith.
Inventors
- 👤 J Werth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:05
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M10/39; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
74 words
A SECONDARY BATTERY COMPRISING IN COMBINATION: A. A MOLTEN ALKALI METAL ANODE; B. A CATHODE COMPRISING CONDUCTIVE POROUS CARBON, C. A SOLID MEMBER SEPARATING THE ANODE AND THE CATHODE SAID MEMBER BEING SELECTIVELY-IONICALLY-CONDUCTIVE WITH RESPECT TO CATIONS OF SAID MOLTEN ALKALI METAL ANODE; AND D. A MOLTEN ALKALI METAL CHLORALUMINATE ELECTROLYTE ON THE CATHODE SIDE OF THE SOLID MEMBER, WHEREIN THE ALKALI METAL OF THE ANODE IS ALSO PRESENT IN THE ALKALI METAL CHLORALUMINATE.
Claim 2
Dependent Claim
74 words
A SECONDARY BATTERY COMPRISING IN COMBINATION: A. A MOLTEN ALKALI METAL ANODE; B. A CATHODE COMPRISING CONDUCTIVE POROUS CARBON, C. A SOLID MEMBER SEPARATING THE ANODE AND THE CATHODE SAID MEMBER BEING SELECTIVELY-IONICALLY-CONDUCTIVE WITH RESPECT TO CATIONS OF SAID MOLTEN ALKALI METAL ANODE; AND D. A MOLTEN ALKALI METAL CHLORALUMINATE ELECTROLYTE ON THE CATHODE SIDE OF THE SOLID MEMBER, WHEREIN THE ALKALI METAL OF THE ANODE IS ALSO PRESENT IN THE ALKALI METAL CHLORALUMINATE.
Claim 3
Dependent Claim
19 words
A battery according to claim 1 wherein the melting point of the electrolyte is from about 150*C - 200*C.
Claim 4
Dependent Claim
18 words
A battery according to claim 1 wherein the alkali metal of the anode and the chloraluminate is sodium.
Claim 5
Dependent Claim
13 words
A battery according to claim 1 wherein the solid member is beta alumina.
Claim 6
Dependent Claim
13 words
A battery according to claim 3 wherein the solid member is beta alumina.
Claim 7
Dependent Claim
19 words
A battery according to claim 5 wherein the melting point of the electrolyte is from about 150*C to 200*C.
Claim 8
Dependent Claim
17 words
A battery according to claim 6 wherein the conductive porous carbon cathode is a rigid skeletal structure.
Claim 9
Dependent Claim
22 words
A battery according to claim 1 wherein the cathode comprises conductive porous carbon the pores of which contain therein non-conductive charcoal particles.
Claim 10
Dependent Claim
18 words
A battery according to claim 8 wherein the alkali metal of the anode and the chloraluminate is sodium.
Claim 11
Dependent Claim
13 words
A battery according to claim 8 wherein the solid member is beta alumina.
Claim 12
Dependent Claim
13 words
A battery according to claim 9 wherein the solid member is beta alumina.
Claim 13
Dependent Claim
19 words
A battery according to claim 11 wherein the melting point of the electrolyte is from about 150*C to 200*C.
Claim 14
Dependent Claim
17 words
A battery according to claim 12 wherein the conductive porous carbon cathode is a rigid skeletal structure.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |