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USRE30661E Expired / Lapsed US ⏱️ 0.0 years remaining

Electric current producing galvanic cell

Assignee: Electrochimica Corp
•
Filing: 1977-03-23
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Granted: 1981-06-30
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Expires: 1997-03-23
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Abstract

Abstract A galvanic cell is disclosed comprising a porous cathode and an anode including a metal less noble than zinc selected from the group consisting of lithium, sodium, magnesium, calcium and aluminum. The cell also includes an electrolyte for electrolytic conduction between the cathode and anode which electrolyte comprises a solvent including thionyl chloride. A first solute consisting essentially of a salt of the selected anode metal is dissolved in the solvent in a concentration of between 0.5 and 3.0 moles per liter. A second solute selected from the group of compounds consisting of phosphoryl chloride, sulfolane, sulfur dioxide and mixtures thereof is also dissolved in the solvent in a concentration of between 0.5 and 6.0 moles per liter.

Inventors

  • 👤 Morris Eisenberg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 19:16
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 409 words
.[. . The galvanic cell of claim 1 wherein said first solute is a tetrachloroborate of the selected anode metal..]. .[.5. The galvanic cell of claim 1 wherein said first solute is a hexachloroarsenate of the selected anode metal..]. .[.6. The galvanic cell of claim 5 wherein said first solute is a hexachloroantimonate of the selected anode metal..]. .[.7. The galvanic cell of claim 1 wherein said anode includes lithium and wherein said first solute is selected from the group of lithium salts consisting of lithium perchlorate, lithium chloroaluminate, lithium tetrachloroborate, lithium hexachloroarsenate and lithium hexachloroantimonate..]. .[.8. The galvanic cell of claim 1 wherein said anode includes magnesium and wherein said first solute is selected from the group of magnesium salts consisting of magnesium perchlorate, magnesium chloroaluminate, magnesium tetrachloroborate, magnesium hexachloroarsenate and magnesium hexachloroantimonate..]. .[.9. The galvanic cell of claim 1 wherein said anode includes lithium and said first solute consists essentially of lithium chloroaluminate..]. .[.10. The galvanic cell of claim 9 wherein said second solute consists of a mixture of two members of the group of compounds consisting of phosphoryl chloride, sulfolane and sulfur dioxide..]. .[.11. The galvanic cell of claim 1 wherein said porous cathode comprises carbon..]. .[.12. The galvanic cell of claim 1 wherein said second solute is sulfolane..]. .[.13. The galvanic cell of claim 1 where said second solute is phosphoryl chloride..]. .Iadd. 14. A galvanic cell comprising: A. a porous solid cathode; B. an anode that includes lithium; and C. an electrolyte for electrolytic conduction between said anode and cathode consisting essentially of thionyl chloride in which is dissolved a. a first solute consisting essentially of lithium chloroaluminate in a concentration of between 0.5 and 3.0 moles per liter, and b. a second solute consisting of a mixture of sulfolane and sulfur dioxide in a concentration of between 0.5 and 6.0 moles per liter. .Iaddend. .Iadd. 15. A galvanic cell comprising: A. a porous solid cathode; B. an anode including a metal less noble than zinc selected from the group consisting of lithium, sodium, magnesium, calcium and aluminum; and C. an electrolyte for electrolytic conduction between said anode and cathode consisting essentially of thionyl chloride in which is dissolved a. a first solute consisting essentially of a salt of the selected anode metal in a concentration of between 0.5 and 3.0 moles per liter, and b. a second solute consisting of sulfolane in a concentration of between 0.5 and 6.0 moles per liter. .Iaddend.

References Cited (Backward Citations)

US3493433A Cited
US3415687A Cited
FR1583804A Cited
FR2079744A5 Cited
US3567515A Cited
US3681144A Cited
US3926669A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-06-29 1984-12-29 1985-06-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-06-29 1988-12-29 1989-06-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-06-29 1992-12-29 1993-06-30 $7700.00 Window Closed / Lapsed

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