Stable lithium-ion cathodes from nanocomposites of VO2 nanowires and CNTs

Abstract

A VO2(B) nanowire/CNT nanocomposite was fabricated with a stable lithium storage performance resulting in an interpenetrating porous network. This material demonstrated an enhanced Li-ion storage capacity with a significantly improved cycling stability. The capacity of the composite faded by only 6% after 100 cycles at 1 C, suggesting great promise for better lithium-ion cathodes. These results demonstrated that the CNT’s network could effectively harvest the charges during the reaction. Moreover, these further prove a general approach to achieve high-capacity electrode materials with long-term cycling stability using intertwined network structures.