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Author:

Wang, Ling (Wang, Ling.) | Lin, Changzheng (Lin, Changzheng.) | Yang, Guorui (Yang, Guorui.) | Wang, Ning (Wang, Ning.) | Yan, Wei (Yan, Wei.)

Indexed by:

SCIE EI Scopus Web of Science

Abstract:

SnO2 is considered as a promising anode material for sodium-ion storage. However, the low electrical conductivity and large volume expansion during repeated cycling process hinder its practical application. To address these issues, we designed a hybrid structure in which SnO2 nanosheets were grown on in-situ formed N-doped branched TiO2/C nanofibers (NBT/C@SnO2 NFs). This unique design can improve the conductivity and structural stability of the electrode, provide enough space for volume expansion, and accelerate the transfer rate of electrons and ions, thereby enhancing the electrochemical performance. As a result, when directly used as an anode for sodium-ions batteries, the binder-free NBT/C@SnO2 NFs electrode exhibits outstanding cycling stability, with a reversible discharge capacity of 420.7 mA h g(-1) after 500 cycles at 200 mA g(-1) and still achieves 330.6 mA h g(-1) at a very high current density of 2000 mA g(-1). This work provides a novel strategy for the design of electrode materials for other high-performance battery systems.

Keyword:

Anode Binder-free Branched TiO2/C nanofiber SnO2 nanosheet Sodium-ion battery

Author Community:

  • [ 1 ] [Wang, Ling]Xi An Jiao Tong Univ, Dept Environm Sci & Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
  • [ 2 ] [Lin, Changzheng]Xi An Jiao Tong Univ, Dept Environm Sci & Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
  • [ 3 ] [Yang, Guorui]Xi An Jiao Tong Univ, Dept Environm Sci & Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
  • [ 4 ] [Yan, Wei]Xi An Jiao Tong Univ, Dept Environm Sci & Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
  • [ 5 ] [Yang, Guorui]Xi An Jiao Tong Univ, MOE Key Lab Nonequilibrium Synth & Modulat Conden, State Key Lab Elect Insulat & Power Equipment, Dept Appl Chem,Sch Sci, Xian 710049, Peoples R China
  • [ 6 ] [Wang, Ning]Xian Polytech Univ, Dept Environm & Chem Engn, Xian 710048, Peoples R China

Reprint Author's Address:

  • G. Yang;;Department of Environmental Science & Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China;;email: yangguorui@xjtu.edu.cn;;

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Source :

ELECTROCHIMICA ACTA

ISSN: 0013-4686

Year: 2022

Volume: 411

6 . 9 0 1

JCR@2020

ESI Discipline: CHEMISTRY;

ESI HC Threshold:6

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 14

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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