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US4476204A
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Electrochemical cell utilizing a mixture of phosphorus oxychloride and a low freezing solvent as the electrolyte
Assignee: Yardney Technical Products Inc
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Filing: 1972-11-13
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Granted: 1984-10-09
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Expires: 1992-11-13
Abstract
Abstract An electrochemical cell having an alkali metal anode; a cathode selected from the group consisting of halogens, metal halides, Group VI A elements and compounds thereof with metallic elements; and an electrolyte containing an inorganic solvent system and a solute dissolved in the solvent system. The solvent system comprises a mixture of phosphorus oxychloride, and a low freezing solvent selected from the group consisting of thionyl chloride, thiophosphoryl chloride, sulfuryl chloride and monofluorophosphoryl dichloride.
Inventors
- 👤 James J. Auborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:04
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
96 words
An electrochemical cell comprising an oxidizable active anode material; an active solid cathode material selected from the group consisting of halogens, metal halides, solid Group VI A elements and compounds thereof with metallic elements; and an electrolyte consisting essentially of an inorganic solvent system and a solute dissolved in said inorganic solvent system, said solvent system consisting essentially of a mixture of phosphorus oxychloride and a low freezing solvent selected from the group consisting of thiophosphoryl chloride, thionyl chloride, sulfuryl chloride, and monofluorophosphoryl dichloride; said inorganic solvent system being the sole solvent material in said electrolyte.
Claim 2
Dependent Claim
96 words
An electrochemical cell comprising an oxidizable active anode material; an active solid cathode material selected from the group consisting of halogens, metal halides, solid Group VI A elements and compounds thereof with metallic elements; and an electrolyte consisting essentially of an inorganic solvent system and a solute dissolved in said inorganic solvent system, said solvent system consisting essentially of a mixture of phosphorus oxychloride and a low freezing solvent selected from the group consisting of thiophosphoryl chloride, thionyl chloride, sulfuryl chloride, and monofluorophosphoryl dichloride; said inorganic solvent system being the sole solvent material in said electrolyte.
Claim 3
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said active anode material is lithium.
Claim 4
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said active anode material is sodium.
Claim 5
Dependent Claim
14 words
The electrochemical cell of claim 1 wherein said active cathode material is a halogen.
Claim 6
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said active cathode material is chlorine.
Claim 7
Dependent Claim
15 words
The electrochemical cell of claim 1 wherein said active cathode material is a metal halide.
Claim 8
Dependent Claim
28 words
The electrochemical cell of claim 1 wherein said active cathode material is selected from the group consisting of sulfur, selenium, and oxides, sulfides, and selenides of metallic elements.
Claim 9
Dependent Claim
22 words
The electrochemical cell of claim 1 wherein said active cathode material is selected from from the group consisting of sulfur and selenium.
Claim 10
Dependent Claim
15 words
The electrochemical cell of claim 1 wherein said active cathode material is a metallic oxide.
Claim 11
Dependent Claim
15 words
The electrochemical cell of claim 1 wherein said active cathode material is a metallic sulfide.
Claim 12
Dependent Claim
25 words
The electrochemical cell of claim 1 wherein said active cathode material is selected from the group consisting of cuprous sulfide, cupric sulfide and nickel sulfide.
Claim 13
Dependent Claim
15 words
The electrochemical cell of claim 1 wherein said active cathode material is a metallic selenide.
Claim 14
Dependent Claim
129 words
The electrochemical cell of claim 1 wherein said solute provides at least one anion having the formula X - , MX 4 - , M'X 6 - , M"X 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 antimony; 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 cation selected from the group consisting of alkali metals, the alkaline earth metals, the lanthanides, POCl 2 + , and R 4 N + , where R is a radical selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl and isobutyl.
Claim 15
Dependent Claim
49 words
The electrochemical cell of claim 1 wherein said solute includes at least one compound selected from the group consisting of lithium perchlorate, lithium dichlorophosphate, lithium chloride, lithium tetrachloroaluminate, lithium tetrachloroborate, lithium tetrafluoroborate, lithium hexafluorophosphate, lithium hexafluoroarsenate, lithium hexafluoroantimonate, lithium hexachloroantimonate, lithium hexachlorostannate, lithium hexachlorozirconate, lithium hexachlorotitanate and lithium chlorosulfate.
Claim 16
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said solute includes a Lewis acid.
Claim 17
Dependent Claim
21 words
The electrochemical cell of claim 1 wherein said solvent system consists essentially of a mixture of phosphorus oxychloride and thionyl chloride.
Claim 18
Dependent Claim
21 words
The electrochemical cell of claim 1 wherein said solvent system consists essentially of a mixture of phosphorus oxychloride and sulfuryl chloride.
Claim 19
Dependent Claim
22 words
The electrochemical cell of claim 1 wherein said inorganic solvent system consists essentially of a mixture of phosphorus oxychloride and thiophosphoryl chloride.
Claim 20
Dependent Claim
22 words
The electrochemical cell of claim 1 wherein said inorganic solvent system consists essentially of a mixture of phorphorus oxychloride and monofluorophosphoryl dichloride.
Claim 21
Dependent Claim
56 words
An electrochemical cell comprising an alkali metal anode, a tungsten oxide active cathode material, and an electrolytic solution consisting essentially of at least one solvent selected from the group consisting of the oxyhalides of phosphorus and the oxyhalides of sulfur, and a solute dissolved in said solvent; said solvent being the sole solvent in said electrolyte.
Claim 22
Dependent Claim
56 words
An electrochemical cell comprising an alkali metal anode, a tungsten oxide active cathode material, and an electrolytic solution consisting essentially of at least one solvent selected from the group consisting of the oxyhalides of phosphorus and the oxyhalides of sulfur, and a solute dissolved in said solvent; said solvent being the sole solvent in said electrolyte.
Claim 23
Dependent Claim
27 words
The electrochemical cell of claim 20 wherein said tungsten oxide is represented by the formula WO 2 , WO 3 or H 0 .5 WO 3 .
Claim 24
Dependent Claim
18 words
The electrochemical cell of claim 21 wherein said solvent is a mixture of phosphorus oxyhalide and thionyl chloride.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |