Growth of SnO2 Nanoflowers on N-doped Carbon Nanofibers as Anode for Li- and Na-ion Batteries

Nano-Micro Letters

Huanhuan Li¹  Chaochun Yuan¹  Hanqi Sun²  Kai Fan²  Jiaojiao Liang²  Jianmin Ma²  Zengxi Wei² 

[1] Automotive Engineering Research Institute, Jiangsu University;School of Physics and Electronics, Hunan University;

关键词: SnO2;    Nanostructures;    Anode;    Li-ion battery;    Na-ion battery;   

DOI  :  10.1007/s40820-017-0172-2

来源: DOAJ

【 摘 要 】

Abstract It is urgent to solve the problems of the dramatic volume expansion and pulverization of SnO2 anodes during cycling process in battery systems. To address this issue, we design a hybrid structure of N-doped carbon fibers@SnO2 nanoflowers (NC@SnO2) to overcome it in this work. The hybrid NC@SnO2 is synthesized through the hydrothermal growth of SnO2 nanoflowers on the surface of N-doped carbon fibers obtained by electrospinning. The NC is introduced not only to provide a support framework in guiding the growth of the SnO2 nanoflowers and prevent the flower-like structures from agglomeration, but also serve as a conductive network to accelerate electronic transmission along one-dimensional structure effectively. When the hybrid NC@SnO2 was served as anode, it exhibits a high discharge capacity of 750 mAh g−1 at 1 A g−1 after 100 cycles in Li-ion battery and 270 mAh g−1 at 100 mA g−1 for 100 cycles in Na-ion battery, respectively.

【 授权许可】

Unknown