A. Golub et al., LITHIUM INTERCALATION DEINTERCALATION REACTIONS USING MATRICES WITH THE SULVANITE STRUCTURE - DIMENSIONALITY LOWERING OF THE HOST-STRUCTURE, Materials research bulletin, 30(8), 1995, pp. 959-966
Reaction of butyllithium with 3-D Cu3NbS4 leads to redox extraction of
copper and formation of 2-D LiNbS2. Action of iodine on the intercala
ted material allows NbS2 (2H variety) to be obtained. For both Cu3NbS4
and Cu3VS4, the electrochemical study shows an irreversible multi-pha
se transformation of the starting material during the first intercalat
ion-deintercalation cycle. Cyclability is observed over a large compos
ition domain (similar to 5 Li per formula unit) corresponding to capac
ities larger than that of the Li-TiS2 system.