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Issue 21, 2018
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Ti2Nb2xO4+5x anode materials for lithium-ion batteries: a comprehensive review

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Abstract

Lithium-ion batteries (LIBs) have achieved great success in portable electronics, but their applications in electric vehicles (EVs) are still very challenging owing to the lack of high-performance electrode materials with high specific capacities, safety, rate capability and cycling stability. Recently, intercalating Ti2Nb2xO4+5x anode materials have received intensive attention owing to their high specific capacities (388ā€“402 mA h gāˆ’1), high safety, prolonged cycling stability, easy state-of-charge evaluation and significant pseudocapacitive behavior. Their limited rate capabilities can be significantly improved by various modifications, including crystal structure modification, formation of a composite conductive phase, particle size reduction, and combined methods. These modified Ti2Nb2xO4+5x materials can be promising and practical anode materials for LIBs in EVs. Here, the research history, crystal structures, characteristics, working mechanisms and various modifications of Ti2Nb2xO4+5x are comprehensively reviewed. The relations between the material composition, material fabrication, material structure, material properties and LIB performance are emphasized. An insight into future directions in this research community is also provided.

Graphical abstract: Ti2Nb2xO4+5x anode materials for lithium-ion batteries: a comprehensive review

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Publication details

The article was received on 27 Jan 2018, accepted on 30 Apr 2018 and first published on 30 Apr 2018


Article type: Review Article
DOI: 10.1039/C8TA00895G
Citation: J. Mater. Chem. A, 2018,6, 9799-9815
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    Ti2Nb2xO4+5x anode materials for lithium-ion batteries: a comprehensive review

    L. Hu, L. Luo, L. Tang, C. Lin, R. Li and Y. Chen, J. Mater. Chem. A, 2018, 6, 9799
    DOI: 10.1039/C8TA00895G

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