Abstract: A novel electrochemical cell is disclosed utilizing an alkali metal anode, a fluorinated carbon cathode, and an electrolyte which includes an alkali metal halide salt and a mixed solvent system consisting of an ether and a cyclic carbonate. Preferred are the cells wherein the anode is lithium, the cathode is C.sub.2 F, and the electrolyte contains essentially of LiCl and a solvent system of dimethoxyethane and propylene carbonate.

Abstract: A novel electrochemical cell is disclosed utilizing an alkali metal anode, a fluorinated carbon cathode, and an electrolyte which includes an alkali metal halide salt and a mixed solvent system containing a substituted amide and a cyclic carbonate. Preferred are the cells wherein the anode is lithium, the cathode is C.sub.2 F, and the electrolyte contains essentially of LiCl and a solvent system of N,N-dimethylacetamide and propylene carbonate, optionally with an ether.

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 solvated metal-alkali metal-halogen compounds of the formula ZMX.sub.n wherein Z is an alkali metal, M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, wherein X is one or more halogens selected from the group consisting of chlorine, fluorine, bromine and iodine, and wherein n is a numerical value equal to one plus the valence of the metal M. Preferred are the cells wherein the anode is lithium, the cathode is C.sub.2 F, and the electrolyte consists essentially of solid solvated metal-lithium-halogen salt.

Abstract: An improved aqueous metal-halogen electrochemical cell, particularly a zinc bromide cell, contains a water soluble tetraorgano-substituted ammonium salt in the electrolyte which forms a substantially water insoluble liquid complex with cathodic halogen thereby reducing self-discharge of the cell. Particularly preferred as the ammonium salt is N-ethyl, N-methyl morpholinium bromide.

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.