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Original Research ARTICLE Provisionally accepted The full-text will be published soon. Notify me

Front. Energy Res. | doi: 10.3389/fenrg.2019.00125

Synthesis and characterization of Nano SnO2 Modification on LiNi0.8Mn0.1Ni0.1O2 Cathode Materials for Lithium Ion Batteries

 Chunxiang Wang1, Wanwan Peng1, Zhifeng Li1*, Yali Liang1, Shengwen Zhong1, 2* and Qian Zhang1
  • 1School of Materials Science and Engineering, Jiangsu University of Science and Technology, China
  • 2School of Materials Science and Engineering, Jiangsu University of Science and Technology , Changzhou , China, China

Abstract: The precursor material of Ni0.8Co0.1Mn0.1(OH)2 was prepared by a co-precipitation method to obtain the layered cathode materials LiNi0.8Co0.1Mn0.1O2 (811) through roasting with LiOH·H2O. Then the SnO2-modified samples were obtained by adding tin oxide into the ball mill. It was found by XRD characterization of the original and modified samples, that the addition of SnO2 did not change the layered structure of the raw materials. Microstructure and distribution of the SnO2 were analyzed with SEM and EDS. Charge/discharge tests indicated that the SnO2-modified phases improved the cycling stability and rate capability. The results of CV test showed that the polarization of SnO2 modified electrode was smaller. AC impedance showed that SnO2/LiNi0.8Co0.1Mn0.1O2 electrode had smaller Rct and Rf value. The above test results indicate that the modification of SnO2 improves the electrochemical performance of cathode material LiNi0.8Co0.1Mn0.1O2.

Keywords: SnO2 modification, Lower electrode polarization, Li-ion battery, Ni-based cathode materials, Electrochemical performances

Received: 20 Sep 2019; Accepted: 25 Oct 2019.

Copyright: © 2019 Wang, Peng, Li, Liang, Zhong and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence:
Mx. Zhifeng Li, School of Materials Science and Engineering, Jiangsu University of Science and Technology, Changzhou, China, jxlzfeng@163.com
Mx. Shengwen Zhong, School of Materials Science and Engineering, Jiangsu University of Science and Technology, Changzhou, China, jxustzsw@126.com