Cited 12 time in webofscience Cited 13 time in scopus

Persistent Electrochemical Performance in Epitaxial VO2(B)

Title
Persistent Electrochemical Performance in Epitaxial VO2(B)
Authors
Lee, Shin BuhmSun, Xiao-GuangLubimtsev, AndrGao, Xiang(Ganesh, PanchapakesWard, Thomas Z.Eres, GyulaChisholm, MattheDai, ShengLee, Ho Nyung
DGIST Authors
Lee, Shin Buhm
Issue Date
2017-04
Citation
Nano Letters, 17(4), 2229-2233
Type
Article
Article Type
Article
Keywords
VO2(B)epitaxyenergy storageelectrodeLi ion battery
ISSN
1530-6984
Abstract
Discovering high-performance energy storage materials is indispensable for renewable energy, electric vehicle performance, and mobile computing. Owing to the open atomic framework and good room temperature conductivity, bronze-phase vanadium dioxide [VO2(B)] has been regarded as a highly promising electrode material for Li ion batteries. However, previous attempts were unsuccessful to show the desired cycling performance and capacity without chemical modification. Here, we show with epitaxial VO2(B) films that one can accomplish the theoretical limit for capacity with persistent charging discharging cyclability owing to the high structural stability and unique open pathways for Li ion conduction. Atomic-scale characterization by scanning transmission electron microscopy and density functional theory calculations also reveal that the unique open pathways in VO2(B) provide the most stable sites for Li adsorption and diffusion. Thus, this work ultimately demonstrates that VO2(B) is a highly promising energy storage material and has no intrinsic hindrance in achieving superior cyclability with a very high power and capacity in a Li-ion conductor.
URI
http://hdl.handle.net/20.500.11750/6538
DOI
10.1021/acs.nanolett.6b04831
Publisher
American Chemical Society
Related Researcher
  • Author Lee, Shinbuhm shinbuhmlee Lab
  • Research Interests Multifunctional films; Experimental condensed matter physics
Files:
There are no files associated with this item.
Collection:
Department of Emerging Materials Scienceshinbuhmlee Lab1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE