ABSTRACT

While only 3 Li per titanium could be intercalated in the first GIC, 4.5 Li per vanadium were reached in the second GIC. We attributed these differences to the in-plane organization of the metal fluoride, which consists of chains in the titanium fluoride and of isolated VF^ anions in the vanadium-based com­ pound. The lithium mobility may be hindered by the close-packed arrangement

Figure 16 Galvanostatic discharge curves obtained under 100 A, with TiFyGIC (a) and VF6-GIC (b) as cathode materials. (From Ref. 56.)

in the (T iF^ chains [49], while the isolated VFg ions leave a larger path for the lithium diffusion [47].