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The high electrochemical performance of Li3V2(PO4)(3) supported by graphene and carbon-nanofibers for advanced Li-ion batteries

Title
The high electrochemical performance of Li3V2(PO4)(3) supported by graphene and carbon-nanofibers for advanced Li-ion batteries
Author
이영무
Keywords
Electronic materials; Chemical synthesis; Electrical properties
Issue Date
2016-01
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
MATERIALS RESEARCH BULLETIN, v. 73, Page. 211-218
Abstract
The intrinsically low electronic conductivity of Li3V2(PO4)(3) (LVP) is a major drawback to be widely used as cathode materials for Li-ion battery. In this study, we synthesized novel LVP composites combining them with carbon nanofiber (CNF) and graphene with improved electrochemical performance. The specific capacity of LVP/CNF-graphene (LVP-CG) was 207 mAh g(-1) at 0.1C between 3.0 and 4.8 V, which is beyond the theoretical capacity of LVP (197 mAh g(-1)). Moreover, the LVP-CG composite shows smaller particle size, high surface area, improved electronic kinetic behavior and low resistance in the LVP electrode. Our results demonstrate that novel composite with CNF and graphene can be widely used in other phosphate-based cathode materials for advanced Li-ion batteries. (C) 2015 Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0025540815301100?via%3Dihubhttp://hdl.handle.net/20.500.11754/30653
ISSN
0025-5408; 1873-4227
DOI
10.1016/j.materresbull.2015.09.008
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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