Superior electrochemical properties of rutile VO2-carbon composite microspheres as a promising anode material for lithium ion batteries

Jong Min Won, You Na Ko, Jung Kul Lee, Yun Chan Kang

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We report a new process to prepare VO2(R)-carbon composite microspheres, which can be used as an anode material in lithium ion batteries. Crystalline V2O3-carbon composite microspheres prepared by a one-pot spray pyrolysis process are transformed into VO2(R)-carbon composite microspheres by heat treatment at 300°C under air atmosphere. Polyvinylpyrrolidone (PVP), which is used as the carbon source, affects the morphologies, crystal structures, and electrochemical properties of the vanadium oxide materials. The carbon content of the VO2(R)-carbon composite powders is about 12.5 wt%. The bare vanadium oxide powders prepared from the spray solution without PVP show rod-like or spherical morphologies. The initial discharge and charge capacities of the VO2(R)-carbon composite powders are 1091 and 659 mA h g-1, respectively. The discharge capacity of the VO2(R)-carbon composite powders after 100 cycles is 637 mA h g-1 and their capacity retention after 100 cycles measured from the second cycle is 96.0%. The high structural stability encountered during lithium insertion and extraction improves the electrochemical properties of the VO2(R)-carbon composite powders.

Original languageEnglish
Pages (from-to)179-187
Number of pages9
JournalElectrochimica Acta
Volume156
DOIs
Publication statusPublished - 2015 Feb 20

Fingerprint

Microspheres
Electrochemical properties
Anodes
Carbon
Composite materials
Powders
Povidone
Vanadium
Oxides
titanium dioxide
Lithium-ion batteries
Spray pyrolysis
Lithium
Crystal structure
Heat treatment
Crystalline materials
Air

Keywords

  • Anode material
  • Lithium ion battery
  • Spray pyrolysis
  • Vanadium oxide

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

Superior electrochemical properties of rutile VO2-carbon composite microspheres as a promising anode material for lithium ion batteries. / Won, Jong Min; Ko, You Na; Lee, Jung Kul; Kang, Yun Chan.

In: Electrochimica Acta, Vol. 156, 20.02.2015, p. 179-187.

Research output: Contribution to journalArticle

@article{1f41ff1a61f94ddebf920ef23e34576d,
title = "Superior electrochemical properties of rutile VO2-carbon composite microspheres as a promising anode material for lithium ion batteries",
abstract = "We report a new process to prepare VO2(R)-carbon composite microspheres, which can be used as an anode material in lithium ion batteries. Crystalline V2O3-carbon composite microspheres prepared by a one-pot spray pyrolysis process are transformed into VO2(R)-carbon composite microspheres by heat treatment at 300°C under air atmosphere. Polyvinylpyrrolidone (PVP), which is used as the carbon source, affects the morphologies, crystal structures, and electrochemical properties of the vanadium oxide materials. The carbon content of the VO2(R)-carbon composite powders is about 12.5 wt{\%}. The bare vanadium oxide powders prepared from the spray solution without PVP show rod-like or spherical morphologies. The initial discharge and charge capacities of the VO2(R)-carbon composite powders are 1091 and 659 mA h g-1, respectively. The discharge capacity of the VO2(R)-carbon composite powders after 100 cycles is 637 mA h g-1 and their capacity retention after 100 cycles measured from the second cycle is 96.0{\%}. The high structural stability encountered during lithium insertion and extraction improves the electrochemical properties of the VO2(R)-carbon composite powders.",
keywords = "Anode material, Lithium ion battery, Spray pyrolysis, Vanadium oxide",
author = "Won, {Jong Min} and Ko, {You Na} and Lee, {Jung Kul} and Kang, {Yun Chan}",
year = "2015",
month = "2",
day = "20",
doi = "10.1016/j.electacta.2015.01.021",
language = "English",
volume = "156",
pages = "179--187",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Superior electrochemical properties of rutile VO2-carbon composite microspheres as a promising anode material for lithium ion batteries

AU - Won, Jong Min

AU - Ko, You Na

AU - Lee, Jung Kul

AU - Kang, Yun Chan

PY - 2015/2/20

Y1 - 2015/2/20

N2 - We report a new process to prepare VO2(R)-carbon composite microspheres, which can be used as an anode material in lithium ion batteries. Crystalline V2O3-carbon composite microspheres prepared by a one-pot spray pyrolysis process are transformed into VO2(R)-carbon composite microspheres by heat treatment at 300°C under air atmosphere. Polyvinylpyrrolidone (PVP), which is used as the carbon source, affects the morphologies, crystal structures, and electrochemical properties of the vanadium oxide materials. The carbon content of the VO2(R)-carbon composite powders is about 12.5 wt%. The bare vanadium oxide powders prepared from the spray solution without PVP show rod-like or spherical morphologies. The initial discharge and charge capacities of the VO2(R)-carbon composite powders are 1091 and 659 mA h g-1, respectively. The discharge capacity of the VO2(R)-carbon composite powders after 100 cycles is 637 mA h g-1 and their capacity retention after 100 cycles measured from the second cycle is 96.0%. The high structural stability encountered during lithium insertion and extraction improves the electrochemical properties of the VO2(R)-carbon composite powders.

AB - We report a new process to prepare VO2(R)-carbon composite microspheres, which can be used as an anode material in lithium ion batteries. Crystalline V2O3-carbon composite microspheres prepared by a one-pot spray pyrolysis process are transformed into VO2(R)-carbon composite microspheres by heat treatment at 300°C under air atmosphere. Polyvinylpyrrolidone (PVP), which is used as the carbon source, affects the morphologies, crystal structures, and electrochemical properties of the vanadium oxide materials. The carbon content of the VO2(R)-carbon composite powders is about 12.5 wt%. The bare vanadium oxide powders prepared from the spray solution without PVP show rod-like or spherical morphologies. The initial discharge and charge capacities of the VO2(R)-carbon composite powders are 1091 and 659 mA h g-1, respectively. The discharge capacity of the VO2(R)-carbon composite powders after 100 cycles is 637 mA h g-1 and their capacity retention after 100 cycles measured from the second cycle is 96.0%. The high structural stability encountered during lithium insertion and extraction improves the electrochemical properties of the VO2(R)-carbon composite powders.

KW - Anode material

KW - Lithium ion battery

KW - Spray pyrolysis

KW - Vanadium oxide

UR - http://www.scopus.com/inward/record.url?scp=84922447723&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84922447723&partnerID=8YFLogxK

U2 - 10.1016/j.electacta.2015.01.021

DO - 10.1016/j.electacta.2015.01.021

M3 - Article

AN - SCOPUS:84922447723

VL - 156

SP - 179

EP - 187

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -