No abstract

Microbelt–void–microbelt-structured SnO2@C was prepared for the first time, and it was found that both the conversion reaction and alloying reaction are highly reversible when it is applied as a battery anode for LIBs.

Facile preparation of rational SnOx-based electrode materials with excellent electrochemical performance is highly desired for lithium ion batteries (LIBs). In this work, carbon framework microbelt supporting SnOx nanoparticles (CFM-SnOx) were prepared via a facile electrospinning technology and annealing treatment process. The as-synthesized CFM-SnOx electrode exhibits high reversible capacity of 768 mAh g−1 at 0.2 A g−1 after 200 cycles, high rate capacity of 535 mAh g−1 at high current density of 3.2 A g−1. The facile synthesis and superior performance indicate that the as-synthesized CFM-SnOx is a competitive anode material for LIBs.