×

Electrolyte additive for lithium-sulfur dioxide electrochemical cell

  • US 4,869,977 A
  • Filed: 04/25/1988
  • Issued: 09/26/1989
  • Est. Priority Date: 04/25/1988
  • Status: Expired due to Fees
First Claim
Patent Images

1. A nonaqueous conductive liquid which comprises a solution in liquid sulfur dioxide of:

  • (a) at least one polar organic compound having a Donor Number in the range from about 10 to about 25;

    (b) aluminum chloride;

    (c) at least one lithium salt; and

    (d) at least one additive which is effective to provide a redox couple in said solution having a potential in the range which is above that of the SO2 /S2 O4-2 couple and below that of the Cl2 /Cl couple, wherein said polar organic compound and lithium salt do not provide a redox coupled in the solution having a potential in said range.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×