Optimizing the rate performance and cycle life of Li2 MTi3O8 (M = Mn, Co, Zn)/CNTs for lithium-ion battery anodes by constructing a one-dimensional carbon-based hybrid structure

Abstract

One-dimensional nanohybrids Li₂MTi₃O₈/CNTs (M = Mn, Co, Zn), i.e., Li₂MTi₃O₈ nanoparticles embedded in carbon nanotubes, were synthesized by following a combination of methods involving sol–gels, solid phase grinding and calcination. As anodes for lithium-ion batteries, Li₂MTi₃O₈/CNTs (especially Li₂CoTi₃O₈/CNTs) exhibited superior electrochemical performance.