Epicyanohydrin as an Interface Stabilizer Agent for Cathodes of Li-Ion Batteries

Title
Epicyanohydrin as an Interface Stabilizer Agent for Cathodes of Li-Ion Batteries
Author
선양국
Keywords
RAY PHOTOELECTRON-SPECTROSCOPY; ELECTROCHEMICAL PERFORMANCE; LINI0.5MN1.5O4 CATHODES; ELECTROLYTE ADDITIVES; LITHIUM; SURFACE; INHIBITION; PARTICLES; NICKEL; SPINEL
Issue Date
2016-02
Publisher
ELECTROCHEMICAL SOC INC
Citation
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v. 163, NO 2, Page. 171-177
Abstract
We investigated the effect of epicyanohydrin as an additive to a LiPF6 salt-based electrolyte in 1:1:1 EC:EMC:DMC for high-power lithium-ion batteries operated at 60 degrees C. Epicyanohydrin polymerized to form a thermally stable, thin, conductive, and evenly distributed protective film on the cathode surface, preventing dissolution of the cathode material LiNi0.6Co0.2Mn0.2O2 and suppressing interfacial impedance, thereby protecting the surface from further reaction with the electrolyte at 60 degrees C. The cycling performance of the cathode materials with the additive was enhanced due to the formation of an epicyanohydrin-derived polymer solid electrolyte interface (SEI). (C) 2015 The Electrochemical Society.
URI
http://jes.ecsdl.org/content/163/2/A171http://hdl.handle.net/20.500.11754/34018
ISSN
0013-4651; 1945-7111
DOI
10.1149/2.0431602jes
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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