United States Patent to 4,009,052 Whittingham 45 Feb
United States Patent to 4,009,052 Whittingham 45 Feb. 22, 1977 54 CHALCOGENIDE BATTERY the anode-active material a metal selected from the group consisting of Group la metals, Group Ib metals, (75. Inventor: M. Stanley Whittingham, Fanwood, Group IIa metals, Group IIb metals, Group IIIa metals N.J. and Group IVa metals (lithium is preferred), the cath 73) Assignee: Exxon Research and Engineering ode contains as the cathode-active material a chalco Company, Linden, N.J. genide of the formula MZ wherein M is an element selected from the group consisting of titanium, zirco 22 Filed: Apr. 5, 1976 nium, hafnium, niobium, tantalum and vanadium (tita nium is preferred); Z is an element selected from the (21 Appl. No.: 673,696 group consisting of sulfur, selenium and tellurium, and x is a numerical value between about 1.8 and about 2. 1, Related U.S. Application Data and the electrolyte is one which does not chemically 63 Continuation-in-part of Ser. No. 552,599, Feb. 24, react with the anode or the cathode and which will 1975, abandoned, which is a continuation-in-part of permit the migration of ions from said anode-active Ser. No. 396,051, Sept. 10, 1973, abandoned. material to intercalate the cathode-active material. A highly useful battery may be prepared utilizing lithium (52) U.S. Cl. ............................... 429/191; 429/193; as the anode-active material, titanium disulfide as the 429/194; 429/199; 429/218; 429/229 cathode-active material and lithium perchlorate dis (51) Int. Cl’........................................ H01M 35/02 solved in tetrahydrofuran (70%) plus dimethoxyethane.
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