Centrifugally spun SnSb nanoparticle/porous carbon fiber composite as high-performance lithium-ion battery anode

Abstract

A SnSb alloy nanoparticle/porous carbon fiber (PCF) composite was prepared using a novel centrifugal spinning technology with subsequent thermal treatment. In SnSb/PCF composite, the SnSb nanoparticles are uniformly distributed in N-doped carbon fiber matrix due to the created porous structure. The centrifugal spinning can significantly increase the production rate of the fiber composites and the as-prepared SnSb/PCF composite demonstrated small particle size with uniform distribution, mesoporous structure which can facilitate the diffusion of electrolyte and N-doped carbon matrix that is beneficial to the acceleration of the electron transfer. Consequently, SnSb@CFs-20 exhibits a promising electrochemical performance in lithium storage.