Fe2O3-CNT composite nanofibers as anodes for lithium ion batteries

Abstract

Fe₂O₃-CNT composite nanofibers are prepared by electrospinning as anodes for lithium-ion batteries. CNTs with high electrical conductivity were distributed homogeneously in Fe₂O₃-CNT composite nanofibers. Therefore, electrons could be transferred efficiently by CNTs network during repeated cycles. Moreover, the pores between CNTs facilitate penetration of electrolyte into the structure. The initial discharge capacity of Fe₂O₃-CNT composite nanofibers at a current density of 100 mA g^-1 was 770 mA h g^-1. Additionally, the Coulombic efficiency of the cell maintained above 99 % during 300 cycles. The synergistic effects of Fe₂O₃-CNT composite nanofibers containing CNTs and pores efficiently could improve the lithium ion storage property of the cell.