Electrochemical Characterization of Positive Electrode Material LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 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;
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

Abstract

Cathode materials LiNi_(1/3)Co_(1/3)Mn_(1/3)O_(2) 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_(1/3)Co_(1/3)Mn_(1/3)O_(2) with purchased LiPF_(6)/ EC+DMC+DEC electrolyte and prepared LiBOB/EC+DEC+EMC electrolyte have also been studied.The Li/LiNi_(1/3)Co_(1/3)Mn_(1/3)O_(2) batteries showed excellent electrochemical properties in the LiPF_(6)/ 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 LiPF_(6)/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

2006-11-28

Received Date

2006-11-28

Recommended Citation

Jing-jing LIU, Wei-hua QIU, Ling-yan YU, Hai-lei ZHAO, Tao LI. Electrochemical Characterization of Positive Electrode Material LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 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