The effect of titanium in Li3V2(PO4)(3)/graphene composites as cathode material for high capacity Li-ion batteries

Title
The effect of titanium in Li3V2(PO4)(3)/graphene composites as cathode material for high capacity Li-ion batteries
Authors
이영무
Issue Date
2015-01
Publisher
ROYAL SOC CHEMISTRY
Citation
RSC ADVANCES, v. 5, NO 7, Page. 4872-4879
Abstract
We report high capacity and rate capability of titanium-added Li3V2(PO4)(3) (LVP) as a cathode material for lithium ion batteries (LIBs). Titanium-added Li3V2-xTix(PO4)(3)/graphene(Ti-added LVP/graphene, x = 0, 0.01, 0.03, and 0.05) composites were synthesized through a sol-gel route by using titanium dioxide (TiO2) and graphene to improve the electrochemical performance. The addition of graphene and titanium significantly enhanced the electric conductivity, resulting in higher kinetic behavior of the LVP. This led to the higher specific capacity of 194 mA h g(-1) at 0.1 C in the potential range of 3.0-4.8 V. The effect of graphene and Ti atoms in Ti-added LVP/graphene was investigated through physical and electrochemical measurements.
URI
http://hdl.handle.net/20.500.11754/21581http://pubs.rsc.org/en/Content/ArticleLanding/2015/RA/C4RA09389E#!divAbstract
ISSN
2046-2069
DOI
http://dx.doi.org/10.1039/c4ra09389e
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > DEPARTMENT OF ENERGY ENGINEERING(에너지공학과) > Articles
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