The electrochemical performance of Ni-added Li3V2(PO4)(3)/graphene composites as cathode material for Li-ion batteries

Title
The electrochemical performance of Ni-added Li3V2(PO4)(3)/graphene composites as cathode material for Li-ion batteries
Authors
이영무
Keywords
Lithium vanadium phosphate; Graphene nano-powder; Nickel; Electrical conductivity; Li-ion battery
Issue Date
2015-04
Publisher
ELSEVIER SCIENCE BV
Citation
MATERIALS LETTERS, v. 145, Page. 83-86
Abstract
Ni-added Li3V2(PO4)(3)/graphene (Li3V2-xNix(PO4)(3), x=0.1, 0.2, and 03, LVNP) was easily synthesized by a facile sol-gel method. The addition of a graphene and Ni in Li3V2(PO4)(3) (LVP) showed the high crystallinity and influenced the morphology of the LVP particles. The effect of the addition of graphene and Ni was investigated in physical and electrochemical properties. Compared with the pristine LVP, the LVNP composite delivered a higher discharge capacity of 180 mA h g(-1) at 0.1 C-rate and better rate capability in the potential range of 3.0-4.8 V. The electrochemical impedance spectra (EIS) measurement, the resistance of LVP electrode was reduced, which can ensure the high specific capacity and rate capability. (C) 2015 Elsevier B.V. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0167577X15001007http://hdl.handle.net/20.500.11754/23824
ISSN
0167-577X; 1873-4979
DOI
http://dx.doi.org/10.1016/j.matlet.2015.01.087
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > DEPARTMENT OF ENERGY ENGINEERING(에너지공학과) > Articles
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