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Na–Mn–O@C yolk–shell nanorods as an ultrahigh electrochemical performance anode for lithium ion batteries

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Abstract

A considerable amount of intensive research has been made towards efficient energy storage, particularly regarding rechargeable lithium-ion batteries (LIBs). However, there are still huge limitations to the applications of state-of-the-art LIBs, including their inadequate durability, safety concerns and high costs, and so they cannot meet the ever-growing demand for portable electronic devices and power batteries. Therefore, designing viable LIBs with high cost efficiency and performance through integration of new alternative electrode materials possessing well-controlled nanostructures is critical. Herein, we rationally design a facile and effective method to construct Na0.55Mn2O4·1.5H2O@C (SMOH@C) yolk–shell nanorods which integrate a one side internal void with the outer carbon shell framework. By virtue of such a yolk–shell structure and composition, as an anode material, the as-built electrode endows LIBs with attractive electrochemical performances including a high specific reversible capacity (750 mA h g−1 at 0.1 A g−1), an excellent rate and superior long term cycling capability (448 mA h g−1 capacity retention after 3000 cycles at 4.0 A g−1). This unique structure design strategy paves the way to produce new anode materials with superior performances for next-generation LIBs.

Graphical abstract: Na–Mn–O@C yolk–shell nanorods as an ultrahigh electrochemical performance anode for lithium ion batteries

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Publication details

The article was received on 12 Jul 2017, accepted on 06 Aug 2017 and first published on 07 Aug 2017


Article type: Paper
DOI: 10.1039/C7TA06046G
Citation: J. Mater. Chem. A, 2017, Advance Article
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    Na–Mn–O@C yolk–shell nanorods as an ultrahigh electrochemical performance anode for lithium ion batteries

    J. Li, J. Yu, I. S. Amiinu, J. Zhang, J. Sheng, Z. Kou, Z. Wang, Q. Yu, L. Mai and S. Mu, J. Mater. Chem. A, 2017, Advance Article , DOI: 10.1039/C7TA06046G

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