Improving the Cycling Stability of LiCoO2 at 4.5 v by Mg Doping and Graphite Coating

Shipai SONG, Bangheng PENG, Xiaoli PENG, Xiaokun ZHANG, Yong XIANG*

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)peer-review

2 Citations (Scopus)


Mg doping and graphite coating are applied to the LCO materials at the same time, thereby improving the structural stability of the LCO and the electrode conductivity at the same time. cLCO-0.02Mg displays the best cycle performance with a high capacity of 146.2 mAh/g after 60 cycles, corresponding to the 79% capacity retention of the initial discharge capacity. And cLCO-0.02Mg displays the best rate performance among the three samples with a high capacity of 41.1 mAh/g at 5 C. Mg doping helps to improve the structure stability, resulting in improving the cycle stability. Graphite coating enhances the electronic conductivity among the LCO particles, indicating a lower internal resistance, thereby resulting in the cycling performance improved.

Original languageEnglish
Article number012082
Number of pages8
JournalIOP Conference Series: Earth and Environmental Science
Issue number1
Publication statusE-pub ahead of print - 7 Jul 2020
Externally publishedYes
Event2020 2nd International Conference on Advances in Civil Engineering, Energy Resources and Environment Engineering, ACCESE 2020 - Nanning, China
Duration: 22 May 202024 May 2020

Bibliographical note

This work is supported by the National Key Research and Development Program of China (2017YFB0702802).


Dive into the research topics of 'Improving the Cycling Stability of LiCoO2 at 4.5 v by Mg Doping and Graphite Coating'. Together they form a unique fingerprint.

Cite this