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Tris(pentafluorophenyl) borane as an electrolyte additive for high performance silicon thin film electrodes in lithium ion batteries

Cited 26 time in Web of Science Cited 24 time in Scopus
Authors
Han, Gi-Beom; Lee, Je-Nam; Choi, Jang Wook; Park, Jung-Ki
Issue Date
2011-10
Citation
Electrochimica Acta, Vol.56 No.24, pp.8997-9003
Keywords
Electrolyte additiveSi thin film electrodeTris(pentafluorophenyl) borane (TPFPB)Solid-electrolyte interphase (SEI)
Abstract
We report tris(pentafluorophenyl) borane (TPFPB) as a novel electrolyte additive for silicon (Si) thin film anodes in lithium ion batteries. The introduction of TPFPB into the electrolyte consisting of 1 M lithium perchlorate (LiClO(4)) in ethylene carbonate (EC)/diethyl carbonate (DEC) (1/1 volume) significantly enhances the capacity retention and coulombic efficiency. Specifically, TPFPB enables the improved properties by forming stable solid-electrolyte interphase (SEI) layers and suppressing surface pulverization. The SEI layers are thoroughly characterized by a variety of analytical tools including scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), and X-ray photoelectron spectroscopy (X PS). (C) 2011 Elsevier Ltd. All rights reserved.
ISSN
0013-4686
URI
http://hdl.handle.net/10371/164570
DOI
https://doi.org/10.1016/j.electacta.2011.07.136
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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