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

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

Chem Commun (Camb). 2015 Jun 4;51(44):9093-6. doi: 10.1039/c5cc00383k.

Authors

Enyue Zhao¹, Xiangfeng Liu, Hu Zhao, Xiaoling Xiao, Zhongbo Hu

Affiliation

¹ College of Materials Science and Opto-electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China. xlxiao@ucas.ac.cn huzq@ucas.ac.cn.

PMID: 25913284
DOI: 10.1039/c5cc00383k

Abstract

Lithium-rich Li(1.13)Ni(0.30)Mn(0.57)O2 has been functionally modified with fast Li(+)-ion conducting Li2SiO3via a facile and novel method, based on the reaction between Ni(0.35)Mn(0.65)C2O4·xH2O and Si(OC2H5)4. Due to the unique Li2SiO3 coating layer which greatly improves the Li(+) ion diffusion rate, Li2SiO3@Li(1.13)Ni(0.30)Mn(0.57)O2 exhibits outstanding rate capability, cycle stability and low polarization.