Cell containing carbon-fluorine compound cathode, alkali metal anode and solid halo-aluminum alkali metal compound electrolyte
AssigneeExxon Research & Engineering Co.
InventorsBhaskara M. L. Rao, Paul A. Malachesky
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Abstract
A novel electrochemical cell is disclosed utilizing an alkali metal anode, a fluorinated carbon cathode and a solid electrolyte consisting essentially of one or more alkali metal aluminum tetrahalide compounds of the formula MAlX.sub.4 wherein M is an alkali metal and X is one or more halogens selected from the group consisting of chlorine and bromine. Preferred is the cell wherein the anode is lithium, the cathode is C.sub.2 F, and the electrolyte consists essentially of LiAlCl.sub.4.
Claims13
A current producing primary cell from which a current can be drawn at a temperature below the melting point of the electrolyte, comprising:
- a. a cathode having a compound formed of fluorine and carbon;
- b. an alkali metal-containing anode;
- and
- c. a solid electrolyte consisting essentially of one or more compounds of the formula:
- MAlX.sub.4
- wherein M is an alkali metal and X is one or more halogens selected from the group consisting of chlorine and bromine.
A primary electric cell from which a current can be drawn at a temperature below the melting point of the electrolyte, comprising:
- a. a cathode containing a cathode-active material formed by reacting graphite with chlorine trifluoride in the presence of HF;
- b. a lithium metal-containing anode;
- and
- c. a solid electrolyte consisting essentially of LiAlCl.sub.4.
A method of operating a current-producing primary cell, comprising:
- drawing a current from said cell at a temperature below the melting point of the electrolyte of said cell wherein said cell comprises a cathode having a compound formed of fluorine and carbon, an alkali metal-containing anode, and a solid electrolyte consisting essentially of one or more compounds of the formula:
- MAlX.sub.4
- wherein M is an alkali metal and X is one or more halogens selected from the group consisting of chlorine and bromine.
Dependencies are inferred from the claim text.