US3663295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery electrolyte
Assignee: Gas Technology Institute
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Filing: 1969-05-14
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Granted: 1972-05-16
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Expires: 1989-05-14
Abstract
Abstract An improved electrolyte phase for use in high temperature primary and secondary batteries of the thermally or electrically regenerative type. The improved electrolyte phase is made up of a support matrix, which is solid or paste-like at the operating conditions for the battery, and the electrolyte for the battery immobilized and incorporated in the support matrix. The support matrix is made up of an inert alkali metal salt such as alkali metal aluminate. The electrolyte may be an alkali metal halide or mixtures of alkali metal halides.
Inventors
- 👤 Bernard S Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:24
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M10/00; H01M10/36; H01M10/39; H01M10/399; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
25 words
Battery of claim 1 wherein said inert alkali metal aluminate is prepared from the reaction of a reactive transition alumina with an alkali metal salt.
Claim 2
Dependent Claim
23 words
Battery of claim 2 wherein said inert alkali metal aluminate is lithium aluminate prepared from the reaction of lithium carbonate and gamma -alumina.
Claim 3
Dependent Claim
23 words
Battery of claim 2 wherein said inert alkali metal aluminate is sodium aluminate prepared from the reaction of sodium carbonate and gamma -alumina.
Claim 4
Dependent Claim
23 words
Battery of claim 2 wherein said inert alkali metal aluminate is potassium aluminate prepared from the reaction of potassium carbonate and gamma -alumina.
Claim 5
Dependent Claim
80 words
In a high temperature storage battery having an anode, a cathode, and an electrolyte phase disposed between said anode and said cathode, the improvement wherein said anode is an alkali metal, said electrolyte phase comprises an alkali metal salt electrolyte supported by a substantially pure and inert alkali metal aluminate matrix in an amount from about 30 to about 60 percent by weight of said electrolyte phase, and said alkali metal aluminate contains the same alkali metal as said anode.
Claim 6
Dependent Claim
18 words
Battery of claim 6 wherein said anode is lithium and said inert alkali metal aluminate is lithium aluminate.
Claim 7
Dependent Claim
37 words
Battery of claim 6 wherein said anode is lithium, said cathode is tin, and said electrolyte phase is made of a matrix support formed of lithium aluminate and an electrolyte formed of a mixture of lithium halides.
Claim 8
Dependent Claim
24 words
Battery as in claim 6 wherein said cathode is selected from tin, antimony, lead, phosphorous, sulfur, tellurium, selenium or mixtures or alloy mixtures thereof.
References Cited (Backward Citations)
US2276188A
Cited
US3257239A
Cited
US3419436A
Cited
FR1502386A
Cited
US3510359A
Cited
US3488221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |