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Issue 40, 2017
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Hierarchical porous Ti2Nb10O29 nanospheres as superior anode materials for lithium ion storage

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Abstract

Lithium ions batteries (LIBs) with high power/energy densities largely rely on the innovation of electrode materials. Herein, for the first time, we rationally construct novel titanium niobium oxide (Ti2Nb10O29, TNO) nanospheres with a three-dimensional porous structure consisting of cross-linked nanoparticles by a simple solvothermal method combined with heat treatment. Compared to bulk TNO microrods, the obtained TNO nanospheres show a larger specific surface area and richer/shorter transfer channels for ions/electrons. Owing to these advantages, the TNO nanosphere electrode exhibits noticeable exceptional electrochemical performance with superior high-rate capability (241 mA h g−1 at 10C, and 208 mA h g−1 at 20C) and ultra-long life with a capacity of 215 mA h g−1 after 500 cycles at 10C, much better than the TNO microrod counterparts. Our findings may pave a new way for the design/fabrication of the state-of-the-art electrodes for electrochemical energy storage.

Graphical abstract: Hierarchical porous Ti2Nb10O29 nanospheres as superior anode materials for lithium ion storage

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Publication details

The article was received on 16 Aug 2017, accepted on 19 Sep 2017 and first published on 19 Sep 2017


Article type: Communication
DOI: 10.1039/C7TA07229E
Citation: J. Mater. Chem. A, 2017,5, 21134-21139
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    Hierarchical porous Ti2Nb10O29 nanospheres as superior anode materials for lithium ion storage

    X. Xia, S. Deng, S. Feng, J. Wu and J. Tu, J. Mater. Chem. A, 2017, 5, 21134
    DOI: 10.1039/C7TA07229E

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