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Kim, Youngsik
YK Research
Research Interests
  • Ionic conducting ceramic electrolyte membranes, energy conversion and storage materials and devices

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A hybrid solid electrolyte for flexible solid-state sodium batteries

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Title
A hybrid solid electrolyte for flexible solid-state sodium batteries
Author
Kim, Jae-KwangLim, Young JunKim, HyojinCho, Gyu-BongKim, Youngsik
Issue Date
2015-12
Publisher
ROYAL SOC CHEMISTRY
Citation
ENERGY & ENVIRONMENTAL SCIENCE, v.8, no.12, pp.3589 - 3596
Abstract
Development of Na-ion battery electrolyte with high-performance electrochemical properties and high safety is still challenging to achieve. In this study, we report on a NASICON (Na3Zr2Si2PO12)-based composite hybrid solid electrolyte (HSE) designed for use in a high safety solid-state sodium battery for the first time. The composite HSE design yields the required solid-state electrolyte properties for this application, including high ionic conductivity, a wide electrochemical window, and high thermal stability. The solid-state batteries of half-cell type exhibit an initial discharge capacity of 330 and 131 mA h g(-1) for a hard carbon anode and a NaFePO4 cathode at a 0.2C-rate of room temperature, respectively. Moreover, a pouch-type flexible solid-state full-cell comprising hard carbon/HSE/NaFePO4 exhibits a highly reversible electrochemical reaction, high specific capacity, and a good, stable cycle life with high flexibility.
URI
https://scholarworks.unist.ac.kr/handle/201301/17949
URL
http://pubs.rsc.org/en/Content/ArticleLanding/2015/EE/C5EE01941A#!divAbstract
DOI
10.1039/c5ee01941a
ISSN
1754-5692
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