Solid electrolyte composition and cell

An electric current-producing cell, comprising:

• a. an alkali metal-containing anode;
• b. a cathode containing as its cathode-active material, one or more chalcogenides 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, wherein A is one or more chalcogens selected from the group consisting of oxygen, sulfur, selenium and tellurium, and wherein p is a numerical value between about 1.8 and about 3.2;
• and
• c. a solid electrolyte comprising one or more compounds of the formula:
• LiI.multidot.x[Al.sub.2 (SO.sub.4).sub.3.multidot. nH.sub.2 O]
• wherein x is the number of moles of Al.sub.2 (SO.sub.4).sub.3.sup.. nH.sub.2 O per mole of LiI, and wherein n is the number of moles of H.sub.2 O per mole of Al.sub.2 (SO.sub.4).sub.3, subject to the proviso that x is a numerical value from about 0.05 to about 5, and n is a numerical value from 0 to about 20.

An electric current-producing cell, comprising:

• a. a lithium metal-containing anode;
• b. a cathode containing titanium disulfide as the cathode-active material;
• and
• c. a solid electrolyte comprising one or more compounds of the formula:
• I.multidot.x[Al.sub.2 (SO.sub.4 3.multidot.3.sup. nH.sub.2 O]
• wherein x is the number of moles of Al.sub.2 (SO.sub.4).sub.3.sup.. nH.sub.2 O per mole of LiI, and wherein n is the number of moles of H.sub.2 O per mole of Al.sub.2 (SO.sub.4).sub.3, subject to the proviso that x is a numerical value from about 0.05 to about 5, and n is a numerical value from 0 to about 20.

A method of operating an electric current-producing cell, comprising:

• drawing a current from the cell at a temperature below the melting point of the electrolyte of the cell, wherein the cell contains:
• a. an alkali metal-containing anode;
• b. a cathode containing as its cathode active material, one or more chalcogenides 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, wherein A is one or more chalcogens selected from the group consisting of oxygen, sulfur, selenium and tellurium, and wherein p is a numerical value between about 1.8 and about 3.2;
• and
• c. a solid electrolyte comprising one or more compounds of the formula:
• LiI.sup.. Xx[Al.sub.2 (SO.sub.4).sub.3.multidot. nH.sub.2 O]
• wherein x is the number of moles of Al.sub.2 (SO.sub.4).sub.3.sup.. nH.sub.2 O per mole of LiI, and wherein n is the number of moles of H.sub.2 O per mole of Al.sub.2 (SO.sub.4).sub.3, subject to the proviso that x is a numerical value from about 0.05 to about 5, and n is a numerical value from 0 to about 20.