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The effect of SiO2 nanoparticles in Li3V2(PO4)(3)/graphene as a cathode material for Li-ion batteries

Title
The effect of SiO2 nanoparticles in Li3V2(PO4)(3)/graphene as a cathode material for Li-ion batteries
Author
이영무
Keywords
Li3V2(PO4)(3); SiO2 nanoparticles; Graphene; Electrochemical performance; Li-ion battery
Issue Date
2015-12
Publisher
ELSEVIER SCIENCE BV
Citation
MATERIALS LETTERS, v. 160, Page. 206-209
Abstract
We synthezised the Li3V2(PO4)(3)/graphene composite with different SiO2 sources as a cathode meterial for lithium ion batteries. The SiO2 nanoparticle are spherical shape and exist on the LW surface observed by a scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The effects of different SiO2 sources in Li3V2(PO4)(3)/graphene composite were investigated by electrochemical performanc such as a galvanostatic charge/discharge, a cycling performance, and an electrochemical impedance spectroscopy (EIS), respectively. The LVP-mSiO(2) displayed discharge capacity of 183 mAh g(-1) in a potential range of 3.0-4.8 V and higher cycling performance. These improved electrochemical performance is attributed to the well dispersion SiO2 nanoparticles and low charge transfer resistance. (C) 2015 Elsevier B.V. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0167577X15302780?via%3Dihubhttp://hdl.handle.net/20.500.11754/30091
ISSN
0167-577X; 1873-4979
DOI
10.1016/j.matlet.2015.07.085
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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