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Composite Gel Electrolytes for Suppressing Lithium Dendrite Growth and Improving Cycling Performance of LiNi0.5Mn1.5O4 Electrodes

Title
Composite Gel Electrolytes for Suppressing Lithium Dendrite Growth and Improving Cycling Performance of LiNi0.5Mn1.5O4 Electrodes
Author
김동원
Keywords
Composite gel electrolyte; Core-shell silica; LiNi0.5Mn1.5O4; Lithium dendrite; Lithium polymer cell; Transition metal dissolution
Issue Date
2015-09
Publisher
ELECTROCHEMICAL SOC INC
Citation
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v. 162, NO 14, Page. 2628-2634
Abstract
Core-shell structured SiO2 particles with a poly(lithium acrylate) shell were synthesized and used in preparing a composite gel electrolyte. The composite gel electrolyte exhibited high ionic conductivity and favorable interfacial characteristics at the lithium electrode. The use of a composite gel electrolyte containing SiO2(Li+) particles effectively suppressed both the dendrite growth of lithium and-dissolution-of-transition metals from the active LiNi0.5Mn1.5O4 material. The lithium metal polymer cell composed of a lithium negative electrode and a LiNi0.5Mn1.5O4 positive electrode delivered a high discharge capacity of 136.6 mAh g(-1) and exhibited good capacity retention. (C) 2015 The Electrochemical Society. All rights reserved.
URI
http://jes.ecsdl.org/content/162/14/A2628.shorthttp://hdl.handle.net/20.500.11754/27410
ISSN
0013-4651; 1945-7111
DOI
10.1149/2.0891512jes
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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