Effect of methyl acetate on low-temperature performance of LiCo1/3Ni1/3Mn1/3O2 cathode and graphite anode

DOI

10.2991/icaees-15.2015.79How to use a DOI?

Keywords

Lithium ion battery, Low temperature performance, Methyl acetate, LiCo1/3Ni1/3Mn1/3O2

Abstract

Li/LiCo1/3Ni1/3Mn1/3O2 and Li/graphite half cells filled with methyl acetate (MA) with 1M LiPF6 function very well. Cells filled with 1 M LiPF6 in EC:DMC:EMC:MA(1:1:1:3) show good capacity retention 147.5 mAh g-1 after 50 cycles at 25 °C. Electrochemical performance of Li-ion batteries is analyzed via the constant current charge-discharge test and cyclic voltammetry. It is found that adding a certain amount of MA improves the compatibility of electrolyte with electrodes. This study further shows that cells with 1M LiPF6 in EC:DMC:EMC:MA (1:1:1:3 v/v%) greatly improves the low-temperature performance in LiCo1/3Ni1/3Mn1/3O2 cells. The capacity retention of the cell used this electrolyte is 92.2%, comparing to 86.8% of that without MA at -20 °C.

Copyright

© 2015, 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  - Hui Zhang
AU  - Jiahui Chen
AU  - Cuihua Li
PY  - 2015/07
DA  - 2015/07
TI  - Effect of methyl acetate on low-temperature performance of LiCo1/3Ni1/3Mn1/3O2 cathode and graphite anode
BT  - Proceedings of the 3rd International Conference on Advances in Energy and Environmental Science 2015
PB  - Atlantis Press
SP  - 425
EP  - 428
SN  - 2352-5401
UR  - https://doi.org/10.2991/icaees-15.2015.79
DO  - 10.2991/icaees-15.2015.79
ID  - Zhang2015/07
ER  -