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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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Inorganic solid/organic liquid hybrid electrolyte for use in Li-ion battery

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Title
Inorganic solid/organic liquid hybrid electrolyte for use in Li-ion battery
Author
Asl, Nina MahootcheianKeith, JoshuaLim, CheolwoongZhu, LikunKim, Youngsik
Keywords
Hybrid electrolyte; Inorganic solid/organic liquid; Li-ion conducting solid; Self-safety device
Issue Date
2012-09
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ELECTROCHIMICA ACTA, v.79, no., pp.8 - 16
Abstract
This study focuses on preparing a hybrid electrolyte, the combination of 90 wt% inorganic solid and 10 wt% organic liquid, for lithium based rechargeable batteries to illustrate the effect of electrode/electrolyte interfacing on electrochemical performance. The inorganic solid electrolyte selected is Li 1.3Ti 1.7Al 0.3(PO 4) 3, and the Li-ion conducting organic liquid electrolyte selected is 1 M LiPF 6 in EC:DEC. Because of the addition of Li-ion conducting liquid between the solid electrode and solid electrolyte, the hybrid electrolyte cell minimizes the ineffective solid-on-solid interfaces common in all-solid-state cells. It is also expected that using a liquid electrolyte at the point of contact between the solid electrolyte and the electrode will adjust for the volume change of the electrode during Li insertion/extraction. As a result, the electrochemical performance of the hybrid electrolyte cell is superior to that of a solid electrolyte cell and is also competitive to that of a pure liquid electrolyte coin cell. Another advantage of the hybrid electrolyte cell observed in this work is that this system behaves as a self-safety device when sudden, higher temperatures are applied.
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DOI
10.1016/j.electacta.2012.06.038
ISSN
0013-4686
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ECHE_Journal Papers
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