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

doi:10.1088/1755-1315/526/1/012082

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 Publications › Journal Article (refereed) › peer-review

2 Citations (Scopus)

Abstract

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 language	English
Article number	012082
Number of pages	8
Journal	IOP Conference Series: Earth and Environmental Science
Volume	526
Issue number	1
DOIs	https://doi.org/10.1088/1755-1315/526/1/012082
Publication status	E-pub ahead of print - 7 Jul 2020
Externally published	Yes
Event	2020 2nd International Conference on Advances in Civil Engineering, Energy Resources and Environment Engineering, ACCESE 2020 - Nanning, China Duration: 22 May 2020 → 24 May 2020

Bibliographical note

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

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10.1088/1755-1315/526/1/012082Licence: CC BY

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title = "Improving the Cycling Stability of LiCoO2 at 4.5 v by Mg Doping and Graphite Coating",

abstract = "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.",

author = "Shipai SONG and Bangheng PENG and Xiaoli PENG and Xiaokun ZHANG and Yong XIANG",

note = "This work is supported by the National Key Research and Development Program of China (2017YFB0702802).; 2020 2nd International Conference on Advances in Civil Engineering, Energy Resources and Environment Engineering, ACCESE 2020 ; Conference date: 22-05-2020 Through 24-05-2020",

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T1 - Improving the Cycling Stability of LiCoO2 at 4.5 v by Mg Doping and Graphite Coating

AU - SONG, Shipai

AU - PENG, Bangheng

AU - PENG, Xiaoli

AU - ZHANG, Xiaokun

AU - XIANG, Yong

N1 - This work is supported by the National Key Research and Development Program of China (2017YFB0702802).

PY - 2020/7/7

Y1 - 2020/7/7

N2 - 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.

AB - 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.

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U2 - 10.1088/1755-1315/526/1/012082

DO - 10.1088/1755-1315/526/1/012082

M3 - Journal Article (refereed)

AN - SCOPUS:85088141952

SN - 1755-1307

VL - 526

JO - IOP Conference Series: Earth and Environmental Science

JF - IOP Conference Series: Earth and Environmental Science

IS - 1

M1 - 012082

T2 - 2020 2nd International Conference on Advances in Civil Engineering, Energy Resources and Environment Engineering, ACCESE 2020

Y2 - 22 May 2020 through 24 May 2020

ER -

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

Abstract

Bibliographical note

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