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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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Multilayer electrolyte cell: A new tool for identifying electrochemical performances of high voltage cathode materials

Cited 15 times inthomson ciCited 7 times inthomson ci
Title
Multilayer electrolyte cell: A new tool for identifying electrochemical performances of high voltage cathode materials
Author
MahootcheianAsl, NinaKim, Jung-HyunPieczonka, Nicholas P. W.Liu, ZhongyiKim, Youngsik
Keywords
Multilayer electrolyte High voltage cathodes LiNi0.5Mn 1.5O4 Mn dissolution Li-ion batteries
Issue Date
2013-07
Publisher
ELSEVIER SCIENCE INC
Citation
ELECTROCHEMISTRY COMMUNICATIONS, v.32, no., pp.1 - 4
Abstract
Multilayer electrolyte cell (MEC) was designed and developed as a new tool for investigating electrode/electrolyte interfacial reactions in a battery system. The MEC consists of two liquid electrolytes separated by a solid electrolyte which prevents electrolyte crossover while selectively transporting Li+ ions. The MEC successfully reproduced the performance of LiFePO4 comparable with that obtained from coin cells. In addition, the origin of capacity fading in LiNi0.5Mn1.5O 4full-cell (with graphite negative electrode) was studied using the MEC. The performance of LiNi0.5Mn1.5O4 MEC full-cell was superior to that of coin full-cell by eliminating the Mn dissolution problem on graphite negative electrode as evidenced by transmission electron microscopyanalysis. The MEC can be a strong tool for identifying the electrochemical performances of future high voltage positive electrode materials and their electrode/electrolyte interfacial reactions.
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DOI
10.1016/j.elecom.2013.03.031
ISSN
1388-2481
Appears in Collections:
ECHE_Journal Papers
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