Nano-Micro Letters

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

Jiaojiao Liang1, #, Chaochun Yuan2, #, Huanhuan Li2, Kai Fan1, Zengxi Wei1, Hanqi Sun1, Jianmin Ma1, 3, *

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Nano-Micro Lett. (2018) 10: 21

First Online: 07 November 2017 (Article)


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Fig. 6 Electrochemical performance for SIBs: a Cyclic voltammetry curves of NC@SnO2 at 0.1 mV s-1. b Charge-discharge voltage profiles of NC@SnO2. c Cycling performances of NC@SnO2, SnO2 and NC at 100 mA g-1. d Rate capabilities of NC@SnO2, SnO2 and NC

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 are 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.



SnO2; Nanostructures; Anode; Li-ion battery; Na-ion battery

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