Synthesis of core-sheath structured fibers of SnO₂/carbon composites by electrospinning

Abstract

Nanostructured SnO₂ is a candidate anode material for lithium ion batteries because of its relaxation of the large volume change accompanying lithium insertion/extraction. Additionally, SnO₂ is a relatively low-cost and high-capacity material. Carbon composite materials with high electroconductivity are suitable for high power performances. In this study, core-sheath structured fiber materials constructed of a vapor grown carbon fiber-core and a composite sheath of poly-crystalline SnO₂/amorphous carbon are fabricated by electrospinning. This electrospinning method is a useful technique for obtaining nanostructured composite fiber materials.