Electrochemical Characterization of Positive Electrode Material LiNi_1/3Co_1/3Mn_1/3O₂ in Different Electrolytes

Authors

Jing-jing LIU, Department of Inorganic Nonmetallic Materials,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;
Wei-hua QIU, Department of Inorganic Nonmetallic Materials,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;Follow
Ling-yan YU, Department of Inorganic Nonmetallic Materials,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;
Hai-lei ZHAO, Department of Inorganic Nonmetallic Materials,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;
Tao LI, Department of Inorganic Nonmetallic Materials,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;

Corresponding Author

Wei-hua QIU(qiuwh@vip.sina.com.cn)

Abstract

Cathode materials LiNi_1/3Co_1/3Mn_1/3O₂ were prepared by low-heating solid-state reaction.The micro-structure and morphology of as-synthesized materials have been investigated by using XRD and SEM. The compatibilities of LiNi_1/3Co_1/3Mn_1/3O₂ with purchased LiPF₆/ EC+DMC+DEC electrolyte and prepared LiBOB/EC+DEC+EMC electrolyte have also been studied. The Li/LiNi_1/3Co_1/3Mn_1/3O₂ batteries showed excellent electrochemical properties in the LiPF₆/EC+DMC+DEC electrolyte. Reversible discharge capacities of 167, 163, 163, 157, 147mAh/g at 0.5C, 1C, 1.5C, 2C, 3C rate between 2.7~4.35 V, with stable cycling performances have been obtained. Comparatively, the specific capacity of 160 mAh/g at 0.5C was obtained in LiBOB/EC+DEC+DEC electrolyte,which was just a little lower than that in the other electrolyte. However, the high rate capability of the materials in LiBOB/EC+DEC+DEC was not as good as that in LiPF₆/EC+DMC+DEC, which needs to be improved in further studies.

Keywords

Li-ion battery, Cathode materials, LiNi_(1/3)Co_(1/3)Mn_(1/3)O_(2), Electrolyte

DOI Link

https://doi.org/10.61558/2993-074X.1755

Publication Date

2006-11-28

Online Available Date

2006-11-28

Revised Date

2006-02-27

Received Date

2005-12-29

Recommended Citation

Jing-jing LIU, Wei-hua QIU, Ling-yan YU, Hai-lei ZHAO, Tao LI. Electrochemical Characterization of Positive Electrode Material LiNi_1/3Co_1/3Mn_1/3O₂ in Different Electrolytes[J]. Journal of Electrochemistry, 2006 , 12(4): 373-377.
DOI: 10.61558/2993-074X.1755
Available at: https://jelectrochem.xmu.edu.cn/journal/vol12/iss4/4