US3966490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical cell
Assignee: Verizon Laboratories Inc
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Filing: 1975-08-15
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Granted: 1976-06-29
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Expires: 1995-08-15
Abstract
Abstract An electrochemical cell having an alkali metal anode, an electronically conducting cathode and a nonaqueous electrolytic solution containing an inorganic oxyhalide solvent is housed in a container the inner surface of which is an oxide of either aluminum, magnesium, titanium or alloys thereof.
Inventors
- 👤 James J. Auborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:00
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M50/00; H01M50/10; H01M50/116; H01M50/117; H01M50/119; H01M50/124
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
77 words
An electrochemical cell comprising an alkali metal anode; an electronically conducting cathode material, a nonaqueous electrolytic solution comprising an inorganic solvent selected from the group consisting of phosphorus oxychloride, thionyl chloride, sulfuryl chloride, and mixtures thereof, and a solute dissolved in said solvent; said anode, cathode and electrolyte being housed in a container the inner surface of which is an oxide of a material selected from the group consisting of aluminum, magnesium, and titanium and alloys thereof.
Claim 2
Dependent Claim
77 words
An electrochemical cell comprising an alkali metal anode; an electronically conducting cathode material, a nonaqueous electrolytic solution comprising an inorganic solvent selected from the group consisting of phosphorus oxychloride, thionyl chloride, sulfuryl chloride, and mixtures thereof, and a solute dissolved in said solvent; said anode, cathode and electrolyte being housed in a container the inner surface of which is an oxide of a material selected from the group consisting of aluminum, magnesium, and titanium and alloys thereof.
Claim 3
Dependent Claim
29 words
The electrochemical cell of claim 1 wherein said container is fabricated from a material selected from the group consisting of aluminum oxide, titanium oxide, magnesium oxide and alloys thereof.
Claim 4
Dependent Claim
41 words
The electrochemical cell of claim 1 wherein said container is fabricated from a material selected from the group consisting of aluminum, magnesium, titanium and alloys thereof and wherein the oxide on the inner surface is in the form of a coating.
Claim 5
Dependent Claim
28 words
The electrochemical cell of claim 1 wherein said container is fabricated from aluminum and is coated on its inner surface with a pore free coating of aluminum oxide.
Claim 6
Dependent Claim
29 words
The electrochemical cell of claim 1 wherein said container is fabricated from a titanium alloy and coated on its inner surface with a pore free coating of titanium oxide.
Claim 7
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said active anode material is lithium.
Claim 8
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said active anode material is sodium.
Claim 9
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said cathode material is carbon black.
Claim 10
Dependent Claim
12 words
The electrochemical cell of claim 1 wherein said cathode material is graphite.
Claim 11
Dependent Claim
31 words
The electrochemical cell of claim 1 wherein said cathode material is (C 4 F) n where n refers to an indefinite number of (C 4 F) units in said cathode material.
Claim 12
Dependent Claim
91 words
The electrochemical cell of claim 1 wherein said solute provides at least one anion having the formula X - , MX 4 - , M'X 6 - , and M"Cl 6 - - , where M is an element selected from the group consisting of aluminum and boron; M' is an element selected from the group consisting of phosphorus, arsenic and anitomony; M" is an element selected from the group consisting of tin, zirconium and titanium; and X is a halogen; said solute further providing at least one alkali metal cation.
Claim 13
Dependent Claim
43 words
The electrochemical cell of claim 1 wherein said solute includes at least one compound selected from the group consisting of lithium tetrachloroaluminate, lithium tetrachloroborate, lithium tetrafluoroborate, lithium hexafluorophosphate, lithium hexafluoroarsenate, lithium hexafluoroantimonate, lithium hexachloroantimonate, lithium hexachlorostannate, lithium hexachlorozirconate, lithium hexachlorotitanate and lithium chlorosulfate.
Claim 14
Dependent Claim
17 words
The electrochemical cell of claim 1 wherein said solute includes a Lewis acid and a Lewis base.
Claim 15
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said inorganic solvent is phosphorus oxychloride.
Claim 16
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said inorganic solvent is thionyl chloride.
Claim 17
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said inorganic solvent is sulfuryl chloride.
Claim 18
Dependent Claim
22 words
The electrochemical cell of claim 1 wherein said inorganic solvent is a mixture of at least two of said inorganic solvent materials.
References Cited (Backward Citations)
US3922174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |