Electrospun Kraft Lignin/Cellulose Acetate Derived a Nano Carbon Network as an Anode for High-Performance Sodium-Ion Batteries
By Jia, Hao; Sun, Na; Dirican, Mahmut; Li, Ya; Chen, Chen; Zhu, Pei; Yan, Chaoyi; Zang, Jun; Guo, Jiansheng; Tao, Jinsong; Wang, Jiasheng; Tang, Fangcheng; Zhang, Xiangwu
Published in ACS Applied Materials & Interfaces
Abstract
An innovative nano carbon network material was synthesized from electrospun Kraft lignin (KL) and cellulose acetate (CA) blend nanofibers after carbonization at 1000 oC in nitrogen atmosphere and its electrochemical performance was evaluated as an anode material in sodium-ion batteries (SIBs). Apart from its unique network architecture, introduced carbon material possesses high oxygen content of 13.26%, wide interplanar spacing of 0.384 nm and large specific surface area of 540.95 m2?g-1. The electrochemical test results demonstrate that this new nano carbon network structure delivers a reversible capacity of 340 mAh?g-1 at a current density of 50 mA?g-1 after 200 cycles and exhibits high rate capacity by delivering a capacity of 103 mAh?g-1 at an increased current density of 400 mA?g-1. The presented work rendered an innovative approach for preparing nano carbon materials for energy storage applications and could open up new avenues for novel nano carbon fabrication from green and environmentally friendly raw materials.