Ion conducting Li2SiO3-coated lithium-rich layered oxide exhibiting high rate capability and low polarization

Enyue Zhao; Xiangfeng Liu; Hu Zhao; Xiaoling Xiao; Zhongbo Hu

doi:10.1039/C5CC00383K

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Ion conducting Li₂SiO₃-coated lithium-rich layered oxide exhibiting high rate capability and low polarization†

Enyue Zhao,^a Xiangfeng Liu,^a Hu Zhao,^a Xiaoling Xiao*^a and Zhongbo Hu*^a

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* Corresponding authors

^a College of Materials Science and Opto-electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
E-mail: xlxiao@ucas.ac.cn, huzq@ucas.ac.cn
Tel: +86 10 8825 6655

Abstract

Lithium-rich Li_1.13Ni_0.30Mn_0.57O₂ has been functionally modified with fast Li⁺-ion conducting Li₂SiO₃via a facile and novel method, based on the reaction between Ni_0.35Mn_0.65C₂O₄·xH₂O and Si(OC₂H₅)₄. Due to the unique Li₂SiO₃ coating layer which greatly improves the Li⁺ ion diffusion rate, Li₂SiO₃@Li_1.13Ni_0.30Mn_0.57O₂ exhibits outstanding rate capability, cycle stability and low polarization.

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Article information

DOI: https://doi.org/10.1039/C5CC00383K
Article type: Communication
Submitted: 16 Jan 2015
Accepted: 01 Apr 2015
First published: 01 Apr 2015

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Chem. Commun., 2015,51, 9093-9096

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Ion conducting Li₂SiO₃-coated lithium-rich layered oxide exhibiting high rate capability and low polarization

E. Zhao, X. Liu, H. Zhao, X. Xiao and Z. Hu, Chem. Commun., 2015, 51, 9093 DOI: 10.1039/C5CC00383K

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