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Issue 68, 2016
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Improving the electrochemical performance of Li1.2Ni0.13Co0.13Mn0.54O2 by Li-ion conductor

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Abstract

Electrochemical performances of Li-rich layered cathode material Li1.2Ni0.13Co0.13Mn0.54O2 (LNCMO) are improved by modification of lithium-ion conducting Li1.3Al0.3Ti1.7(PO4)3 (LATP). The sintering temperature and the amount of LATP are optimized to improve the electrochemical performance of LNCMO. With 2 wt% LATP modification treatment at 550 °C, the LNCMO exhibits remarkably enhanced cyclic and rate performances and more stable voltage plateaus. A capacity of 209 mA h g−1 at 0.2C and 86.3% capacity retention over 100 cycles are attained. Impedance analysis shows lower charge transfer impedance for the modified LNCMO. The LATP modification layer can promote Li-ion mobility and protect the active materials from side reactions at the cathode/electrolyte interface, and hence greatly improve the electrochemical performance.

Graphical abstract: Improving the electrochemical performance of Li1.2Ni0.13Co0.13Mn0.54O2 by Li-ion conductor

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Publication details

The article was received on 13 May 2016, accepted on 27 Jun 2016 and first published on 29 Jun 2016


Article type: Paper
DOI: 10.1039/C6RA12421F
Citation: RSC Adv., 2016,6, 63749-63753
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    Improving the electrochemical performance of Li1.2Ni0.13Co0.13Mn0.54O2 by Li-ion conductor

    T. Wang, Z. Yang, Y. Jiang, G. Li and Y. Huang, RSC Adv., 2016, 6, 63749
    DOI: 10.1039/C6RA12421F

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