JZUS - Journal of Zhejiang University SCIENCE

Journal of Zhejiang University SCIENCE A 2013 Vol.14 No.7 P.514-519

Triethoxysilane with oligo(ethylene oxide) substituent as film forming additive for graphite anode*

Author(s): Xue-ying Qin^1,2, Jing-lun Wang¹, Dao-ping Tang¹, Yong-jin Mai¹, Ling-zhi Zhang¹
Affiliation(s): 1. Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; more
Corresponding email(s): lzzhang@ms.giec.ac.cn
Key Words: Triethoxysilane, Electrolyte additive, Solid electrolyte interphase, Graphite anode, Lithium-ion batteries (LIBs)

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Xue-ying Qin, Jing-lun Wang, Dao-ping Tang, Yong-jin Mai, Ling-zhi Zhang. Triethoxysilane with oligo(ethylene oxide) substituent as film forming additive for graphite anode[J]. Journal of Zhejiang University Science A, 2013, 14(7): 514-519.

@article{title="Triethoxysilane with oligo(ethylene oxide) substituent as film forming additive for graphite anode",
author="Xue-ying Qin, Jing-lun Wang, Dao-ping Tang, Yong-jin Mai, Ling-zhi Zhang",
journal="Journal of Zhejiang University Science A",
volume="14",
number="7",
pages="514-519",
year="2013",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1300026"
}

%0 Journal Article
%T Triethoxysilane with oligo(ethylene oxide) substituent as film forming additive for graphite anode
%A Xue-ying Qin
%A Jing-lun Wang
%A Dao-ping Tang
%A Yong-jin Mai
%A Ling-zhi Zhang
%J Journal of Zhejiang University SCIENCE A
%V 14
%N 7
%P 514-519
%@ 1673-565X
%D 2013
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1300026

TY - JOUR
T1 - Triethoxysilane with oligo(ethylene oxide) substituent as film forming additive for graphite anode
A1 - Xue-ying Qin
A1 - Jing-lun Wang
A1 - Dao-ping Tang
A1 - Yong-jin Mai
A1 - Ling-zhi Zhang
J0 - Journal of Zhejiang University Science A
VL - 14
IS - 7
SP - 514
EP - 519
%@ 1673-565X
Y1 - 2013
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1300026

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: {3-[2-(2-methoxyethoxy) ethoxy]-propyl} triethoxysilane (TESM2) was synthesized and used as an electrolyte additive to improve the performances of lithium-ion batteries (LIBs). The electrochemical properties of the electrolyte (1 mol/L lithium hexafluorophosphate (LiPF₆)/ethylene carbonate (EC):diethylene carbonate (DEC):dimethyl carbonate (DMC), 1:1:1) with different contents of TESM2 were characterized by ionic conductivity measurement, galvanostatic charge/discharge test of graphite/Li half cells, and electrochemical impedance spectroscopy. Both the cycling performances and C-rate capabilities of graphite/Li half cells were significantly improved with an optimized content of 15% TESM2 in the electrolyte. The graphite/Li half cell delivered a very high specific capacity of 370 mAh/g at 0.2C rate without any capacity loss for 60 cycles, and retained a capacity of 292 mAh/g at 2C rate. The solid electrolyte interphase (SEI) film on the surface of the graphite anode was investigated by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), indicating that TESM2 was effectively involved in the formation of SEI film on the surface of graphite.

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