Abstract: A lithium-aluminum alloy electrode having from about 10% to 95% by weight of lithium is formed by contacting a preformed lithium-aluminum laminate with a solution of a lithium salt in an organic solvent. Preferably the laminate is supported on a wire mesh support structure.

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.

Abstract: Novel solid electrolyte compositions and novel electrochemical cells utilizing the novel electrolyte compositions are disclosed. The cells utilize: (a) an anode which contains as the anode-active material an alkali metal; (b) a cathode which contains as the cathode-active material a chalcogenide of the empirical formula M'A.sub.p wherein M' is one or more metals selected from the group consisting of titanium, zirconium, hafnium, niobium, tantalum and vanadium, A is one or more chalcogens selected from the group consisting of oxygen, sulfur, selenium and tellurium, and p is a numerical value between about 1.8 and about 3.2; and (c) a novel solid electrolyte composition which comprises one or more lithium-halogen-aluminum sulfate compounds of the formula LiI. x[Al.sub.2 (SO.sub.4).sub.3. nH.sub.2 O] wherein x is a numerical value representing the number of moles of Al.sub.2 (SO.sub.4).sub.3. nH.sub.2 O per mole of LiI, and wherein n is a numerical value representing the number of moles of H.sub.

Abstract: A high energy density electrochemical cell comprises an anode consisting essentially between about 63% and 92% lithium, on an atomic basis, and the balance essentially aluminum, a cathode and a nonaqueous electrolyte. Advantageously, the cathode is an electrochemically active transition metal chalcogenide, such as titanium disulfide, and the nonaqueous electrolyte is an organic solvent, such as dioxolane, having at least one lithium salt, preferably lithium perchlorate, dissolved therein.

Abstract: An improved electrochemical cell comprises an alkali metal anode, a cathode, an oxidant of at least one quaternary ammonium polyhalide salt, and a dipolar aprotic electrolyte containing an ionizable salt of an alkali metal. A specific example includes a lithium anode, a carbon cathode, a tetraalkylammonium tribromide salt and an electrolyte of one mole lithium hexafluoride dissolved in propylene carbonate, which cell provides an open circuit voltage of about 3.6 volts. The oxidant can be incorporated in the cathode structure or be added independently to the cell, e.g., by use of a circulating electrolyte.

Abstract: A method, a cell, an electrolyte and an additive for the non-dendritic deposition of lithium is described.The additive which causes the non-dendritic deposition of lithium from non-aqueous electrolytes and particularly organic electrolytes is a metal, reducible by lithium and capable of forming lithium-rich metallics or alloys.