Hierarchical bicomponent TiO2 hollow spheres as a new high-capacity anode material for lithium-ion batteries

Ruiping Liu, Chao Shen, Chao Zhang, James Iocozzia, Qi Wang, Shiqiang Zhao, Kunjie Yuan, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Hierarchical TiO2-based hollow spheres were successfully synthesized via a hydrothermal method using FeSO4·7H2O, CoSO4·7H2O and ZnSO4·7H2O as soft templates. The as-prepared hollow spheres are well dispersed with the diameters of 2–4 μm. The shell and the interior surface of the spheres are composed of loosely packed grains, which provide a large specific surface area to facilitate lithium-ion diffusion processes. Among the three types of hybrid hollow spheres, TiO2/Fe2O3 shows the highest reversible capacity and best cycling stability (discharge capacities of 290.8 and 210.5 mAh/g were achieved after 100 cycles at 0.1C and 1C, respectively) and rate performance (from 461.1 mAh/g at 0.1C to 79.3 mAh/g at 5C with recovery to 288.6 mAh/g at 0.1C) for anode materials in lithium-ion batteries.

Original languageEnglish
Pages (from-to)8499-8509
Number of pages11
JournalJournal of Materials Science
Volume53
Issue number11
DOIs
StatePublished - 1 Jun 2018

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© 2018, Springer Science+Business Media, LLC, part of Springer Nature.

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