Hydrothermal synthesis of hollow SnO2 spheres with excellent electrochemical performance for anodes in lithium ion batteries

Ruiping Liu, Weiming Su, Chao Shen, James Iocozzia, Shiqiang Zhao, Kunjie Yuan, Ning Zhang, Chang an Wang, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Hollow SnO2 spheres with oriented cone-like SnO2 nanoparticle shells were synthesized by a one-step hydrothermal process using NaF as the morphology controlling agent. The resulting hollow SnO2 sphere electrode exhibits high reversible capacity (initial charge and discharge capacities of 1342.9 and 1947.6 mAh/g at 0.1 C and 1235.4 and 1741.3 mAh/g at 1 C) and good cycling stability (discharge capacities maintained 758.1 and 449.6 mAh/g after 100 cycles at 0.1 C and 1 C, respectively). Good rate performance was also obtained (1234.5 mAh/g at 0.1 C, 884.2 mAh/g at 0.2 C, 692.4 mAh/g at 0.5 C, 497.6 mAh/g at 1 C, 315.8 mAh/g at 2 C and 80.6 mAh/g at 5 C, and more importantly, when the current density returns to 0.1 C, a capacity of 869.6 mAh/g can be recovered. The observed electrochemical performance can attributed to the hollow structure, the use of NaF for morphology control and the unique oriented cone-like shell of the particles.

Original languageEnglish
Pages (from-to)443-448
Number of pages6
JournalMaterials Research Bulletin
Volume96
DOIs
StatePublished - Dec 2017

Bibliographical note

Funding Information:
This work was supported by the National Natural Science Foundation of China (NSFC–No. 51202117 and 51572145 ), Natural Science Foundation of Beijing (No. 2162037 ), the Beijing Nova program (Z171100001117077) and Beijing outstanding talent (No. 2015000020124G121 ), the Fundamental Research Funds for the Central Universities (No. 2014QJ02 ) and the State key laboratory of Coal Resources and Safe Mining (No. SKLCRSM16KFB04 ).

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

  • Electrochemical properties
  • Oxides
  • Solvothermal

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