INTERCALATION CHEMISTRY AND ENERGY-STORAGE

The reaction between lithium and titanium disulfide is used to show the relationship between intercalation chemistry and electrochemical energy storage. The maintenance of crystalline structure with only a 10% lattice expansion perpendicular to the sulfide sheets allows high rates of reaction with lithium and complete reversibility of the reaction. The behavior of TaS2 and VSe2 are compared with that of TiS2. Many oxides and other chalcogenides of the early group transition metals are also able to react with lithium to form ternary compounds, but none of these have to date shown the high reversibility of titanium disulfide. © 1979.