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Title: The high electrochemical performance of Li{sub 3}V{sub 2}(PO{sub 4}){sub 3} supported by graphene and carbon-nanofibers for advanced Li-ion batteries

Abstract

Highlights: • The LVP-CG composite was synthesized by combining the CNF and graphene. • The improved electronic conductivity lead to high specific capacity. • The capacity retention of LVP-CG was retained without capacity loss. - Abstract: The intrinsically low electronic conductivity of Li{sub 3}V{sub 2}(PO{sub 4}){sub 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{sup −1} at 0.1C between 3.0 and 4.8 V, which is beyond the theoretical capacity of LVP (197 mAh g{sup −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.

Authors:
 [1];  [2];  [3];  [1];  [3]
  1. Decontamination and Decommissioning Research Division, Korea Atomic Energy Research Institute, Daejeon 305-353 (Korea, Republic of)
  2. Battery Research Center, Korea Electrotechnology Research Institute, Changwon 642-120 (Korea, Republic of)
  3. Department of Energy Engineering, Hanyang University, Seoul 133-791 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22584264
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 73; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CARBON FIBERS; CATHODES; COMPOSITE MATERIALS; ELECTRIC CONDUCTIVITY; ELECTROCHEMISTRY; GRAPHENE; LITHIUM COMPOUNDS; LITHIUM ION BATTERIES; NANOFIBERS; PARTICLE SIZE; SURFACE AREA; SYNTHESIS; VANADIUM PHOSPHATES

Citation Formats

Choi, Mansoo, Kim, Hyun-Soo, Lee, Young Moo, Choi, Wang-Kyu, and Jin, Bong-Soo. The high electrochemical performance of Li{sub 3}V{sub 2}(PO{sub 4}){sub 3} supported by graphene and carbon-nanofibers for advanced Li-ion batteries. United States: N. p., 2016. Web. doi:10.1016/J.MATERRESBULL.2015.09.008.
Choi, Mansoo, Kim, Hyun-Soo, Lee, Young Moo, Choi, Wang-Kyu, & Jin, Bong-Soo. The high electrochemical performance of Li{sub 3}V{sub 2}(PO{sub 4}){sub 3} supported by graphene and carbon-nanofibers for advanced Li-ion batteries. United States. https://doi.org/10.1016/J.MATERRESBULL.2015.09.008
Choi, Mansoo, Kim, Hyun-Soo, Lee, Young Moo, Choi, Wang-Kyu, and Jin, Bong-Soo. 2016. "The high electrochemical performance of Li{sub 3}V{sub 2}(PO{sub 4}){sub 3} supported by graphene and carbon-nanofibers for advanced Li-ion batteries". United States. https://doi.org/10.1016/J.MATERRESBULL.2015.09.008.
@article{osti_22584264,
title = {The high electrochemical performance of Li{sub 3}V{sub 2}(PO{sub 4}){sub 3} supported by graphene and carbon-nanofibers for advanced Li-ion batteries},
author = {Choi, Mansoo and Kim, Hyun-Soo and Lee, Young Moo and Choi, Wang-Kyu and Jin, Bong-Soo},
abstractNote = {Highlights: • The LVP-CG composite was synthesized by combining the CNF and graphene. • The improved electronic conductivity lead to high specific capacity. • The capacity retention of LVP-CG was retained without capacity loss. - Abstract: The intrinsically low electronic conductivity of Li{sub 3}V{sub 2}(PO{sub 4}){sub 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{sup −1} at 0.1C between 3.0 and 4.8 V, which is beyond the theoretical capacity of LVP (197 mAh g{sup −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.},
doi = {10.1016/J.MATERRESBULL.2015.09.008},
url = {https://www.osti.gov/biblio/22584264}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 73,
place = {United States},
year = {2016},
month = {1}
}