File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

이현욱

Lee, Hyun-Wook
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Ionic Conductivity Enhancement of Polymer Electrolytes with Ceramic Nanowire Fillers

Author(s)
Liu, WeiLiu, NianSun, JieHsu, Po-ChunLi, YuzhangLee, Hyun-WookCui, Yi
Issued Date
2015-04
DOI
10.1021/acs.nanolett.5b00600
URI
https://scholarworks.unist.ac.kr/handle/201301/18213
Fulltext
http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.5b00600
Citation
NANO LETTERS, v.15, no.4, pp.2740 - 2745
Abstract
Solid-state electrolytes provide substantial improvements to safety and electrochemical stability in lithium-ion batteries when compared with conventional liquid electrolytes, which makes them a promising alternative technology for next-generation high-energy batteries. Currently, the low mobility of lithium ions in solid electrolytes limits their practical application. The ongoing research over the past few decades on dispersing of ceramic nanoparticles into polymer matrix has been proved effective to enhance ionic conductivity although it is challenging to form the efficiency networks of ionic conduction with nanoparticles. In this work, we first report that ceramic nanowire fillers can facilitate formation of such ionic conduction networks in polymer-based solid electrolyte to enhance its ionic conductivity by three orders of magnitude. Polyacrylonitrile-LiClO4 incorporated with 15 wt % Li0.33La0.557TiO3 nanowire composite electrolyte exhibits an unprecedented ionic conductivity of 2.4 x 10(-4) S cm(-1) at room temperature, which is attributed to the fast ion transport on the surfaces of ceramic nanowires acting as conductive network in the polymer matrix. In addition, the ceramic-nanowire filled composite polymer electrolyte shows an enlarged electrochemical stability window in comparison to the one without fillers. The discovery in the present work paves the way for the design of solid ion electrolytes with superior performance.
Publisher
AMER CHEMICAL SOC
ISSN
1530-6984

qrcode

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