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conferenceseries
.com
Volume 7
Biosensors Journal
ISSN: 2090-4967
Electrochemistry 2018
June 11-12, 2018
June 11-12, 2018 | Rome, Italy
4
th
International Conference on
Electrochemistry
Preparation of surface modified nanosalts and its application to an organic electrolyte additive
Yong Joo Kim
and
Sang Jun Kim
Hanbat National University, South Korea
L
ithium sulfonyl silica (LSS) was synthesized by replacing the surface -OH group in fumed silica with (CH
2
)
3
SO
3
Li and
adopted as electrolyte additive for lithium ion battery. 3 wt.% of the synthesized particles in 1 M LiPF6 (EC/DMC=1:1)
showed improved ionic conductivity and potential window over the pristine electrolyte. The discharge capacity of the LiCoO
2
/
graphite is particularly enhanced with the addition of LSS at higher C-rates due to the enhanced ionic conductivity at room
temperature. The LiCoO
2
/graphite cells using 1.0 M LiPF
6
/EC/DMC (1:1) and 1.0 M LiTFSI/EC/DMC (1:1) with the additive
also showed superior performance for the self-discharge test carried out at 45 for 200 days. These positive impacts of LSS on
LiCoO
2
/graphite cells warrant its use in lithium ion batteries.
Biography
Yong Joo Department of Applied Chemistry and Biotechnology, Hanbat National University San 16-1.
kimyj@hanbat.ac.krYong Joo Kim et al., Biosens J 2018, Volume 7
DOI: 10.4172/2090-4967-C1-003