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Li2ZrOx/carbon double-coated Li[Li0.2Ni0.16Mn0.56Co0.08]O2 cathodes for improved electrochemical performance

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Abstract

The electrochemical properties of the Li[Li0.2Ni0.16Mn0.56Co0.08]O2 cathode material were studied after surface modification with a Li2ZrOx/carbon double coating layer. Li2ZrOx, a stable oxide with ionic conductivity, suppresses the unwanted reaction between the cathode and the electrolyte. On the other hand, carbon layer, with high electronic conductivity, compensates for the low conductivity of the oxide cathode. The rate capability and cyclic performance of the Li[Li0.2Ni0.16Mn0.56Co0.08]O2 cathode were improved due to the surface modification. Moreover, the thermal stability of the cathode was also enhanced as the double coating layer protected the cathode surface from the electrolyte. The results show that the Li2ZrOx/carbon double coating is an effective approach to obtain enhanced electrochemical properties of the Li[Li0.2Ni0.16Mn0.56Co0.08]O2 cathode.

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Acknowledgments

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and future Planning (No.2014R1A2A2A01003542) and by the National Strategic R&D Program for Industrial Technology (10043868) funded by the Ministry of Trade, Industry and Energy (MOTIE).

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Authors and Affiliations

  1. Department of Advanced Materials Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do, 443-760, South Korea

    Suk Bum Lim & Yong Joon Park

  2. Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, South Korea

    Hyejin Lee

Authors
  1. Suk Bum Lim
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  2. Hyejin Lee
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  3. Yong Joon Park
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Correspondence to Yong Joon Park.

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Lim, S.B., Lee, H. & Park, Y.J. Li2ZrOx/carbon double-coated Li[Li0.2Ni0.16Mn0.56Co0.08]O2 cathodes for improved electrochemical performance. J Electroceram 37, 92–99 (2016). https://doi.org/10.1007/s10832-016-0045-y

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  • DOI: https://doi.org/10.1007/s10832-016-0045-y

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