Patent US3877984A successfully refreshed from Google Patents.
US3877984A
Expired / Lapsed
US
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Alkali metal-metal chloride battery
Assignee: Beta Research and Development Ltd
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Filing: 1974-04-24
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Granted: 1975-04-15
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Expires: 1994-04-24
Abstract
Abstract A secondary battery utilizing a molten alkali metal negative reactant, a metal chloride positive reactant, a molten alkali metal chloraluminate electrolyte and a selectively-ionicallyconductive separator positioned between the negative and the positive reactants.
Inventors
- 👤 John J Werth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:23
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
82 words
A SECONDARY BATTERY COMPRISING IN COMBINATION: A. A NEGATIVE REACTANT CONSISTING ESSENTIALLY OF A MOLTEN ALKALI METAL; B. A POSITIVE REACTANT COMPRISING METAL CHLORIDE; C. A SOLID MEMBER SEPARATING THE NEGATIVE AND POSITIVE REACTANTS, SAID MEMBER BEING SELECTIVELY-INOCIALLYCONDUCTIVE WITH RESPECT TO CATIONS OF SAID MOLTEN ALKALI METAL NEGATIVE REACTANT; AND D. A MOLTEN ALKALI METAL CHLORALUMINATE ELECTROLYTE ON THE POSITIVE REACTANT SIDE OF THE SOLID MEMBER, WHEREIN THE ALKALI METAL OF THE NEGATIVE REACTANT IS ALSO PRESENT IN THE ALKALI METAL CHLORALUMINATE.
Claim 2
Dependent Claim
82 words
A SECONDARY BATTERY COMPRISING IN COMBINATION: A. A NEGATIVE REACTANT CONSISTING ESSENTIALLY OF A MOLTEN ALKALI METAL; B. A POSITIVE REACTANT COMPRISING METAL CHLORIDE; C. A SOLID MEMBER SEPARATING THE NEGATIVE AND POSITIVE REACTANTS, SAID MEMBER BEING SELECTIVELY-INOCIALLYCONDUCTIVE WITH RESPECT TO CATIONS OF SAID MOLTEN ALKALI METAL NEGATIVE REACTANT; AND D. A MOLTEN ALKALI METAL CHLORALUMINATE ELECTROLYTE ON THE POSITIVE REACTANT SIDE OF THE SOLID MEMBER, WHEREIN THE ALKALI METAL OF THE NEGATIVE REACTANT 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 125*C to 200*C.
Claim 4
Dependent Claim
19 words
A battery according to claim 1 wherein the alkali metal of the negative reactant 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 125*C to 200*C.
Claim 8
Dependent Claim
13 words
A battery according to claim 1 wherein the positive reactant is antimony trichloride.
Claim 9
Dependent Claim
13 words
A battery according to claim 1 wherein the positive reactant is cupric chloride.
Claim 10
Dependent Claim
13 words
A battery according to claim 1 wherein the positive reactant is ferric chloride.
Claim 11
Dependent Claim
19 words
A battery according to claim 7 wherein the alkali metal of the negative reactant and the chloraluminate is sodium.
Claim 12
Dependent Claim
13 words
A battery according to claim 7 wherein the solid member is beta alumina.
Claim 13
Dependent Claim
13 words
A battery according to claim 10 wherein the solid member is beta alumina.
Claim 14
Dependent Claim
19 words
A battery according to claim 12 wherein the melting point of the electrolyte is from about 125*C to 200*C.
References Cited (Backward Citations)
US3663295A
Cited
US3751298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |