Effects of complexant concentration in base solution on the structure and electrochemical properties of LiNi0.8Co0.1Mn0.1O2

DOI

10.2991/icmea-17.2018.3How to use a DOI?

Keywords

complexant; co-precipitation; LiNi0.8Co0.1Mn0.1O2; lithium-ion batteries

Abstract

LiNi0.8Co0.1Mn0.1O2 powders were synthesized from co-precipitated spherical metal hydroxide, Ni0.8Mn0.1Co0.1(OH)2. The effects of the complexant (NH4OH) concentration in base solution on the microstructure, crystalline structure and electrochemical properties of the product were studied. The results of scanning electron microscopy showed that the particle morphology was more regular and the particle size tended to increase with improving the concentration of NH4OH. The as-prepared material had a good -NaFeO2 hexagonal lamellar structure, as confirmed by X-ray diffraction pattern, the sample had the least Li+/Ni2+ cation disorder when the concentration of NH4OH was 1.5M, which contributing to good cycle performance, its initial discharge capacity achieved 198.5 mAh g-1 and the capacity retention rate was 95% after 50 cycles at 0.2C between 2.8 and 4.3V.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jing Wang
AU  - Ang Gao
AU  - Ran Wang
AU  - Yuefeng Su
AU  - Shi Chen
AU  - Feng Wu
PY  - 2018/02
DA  - 2018/02
TI  - Effects of complexant concentration in base solution on the structure and electrochemical properties of LiNi0.8Co0.1Mn0.1O2
BT  - Proceedings of the 4th Annual International Conference on Material Engineering and Application (ICMEA 2017)
PB  - Atlantis Press
SP  - 9
EP  - 12
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmea-17.2018.3
DO  - 10.2991/icmea-17.2018.3
ID  - Wang2018/02
ER  -