Surface-modified separators prepared with conductive polymer and aluminum fluoride for lithium-ion batteries

Title
Surface-modified separators prepared with conductive polymer and aluminum fluoride for lithium-ion batteries
Authors
김동원
Keywords
Surface-modified separators; Conductive polymer; Aluminum fluoride; Lithium-ion cells; Thermal stability
Issue Date
2015-04
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF POWER SOURCES, v. 279, Page. 737-744
Abstract
Conventional polyethylene (PE) separators are surface-modified by thin coating with conductive poly(3,4-ethylenedioxythiophen)-co-poly(ethylene glycol) (PEDOT-co-PEG) copolymer and aluminum fluoride particles. The surface-modified separators exhibit a significant reduction in thermal shrinkage and an improved electrolyte uptake. By using these separators, the lithium-ion cells composed of carbon negative electrodes and LiNi1/3Co1/3Mn1/3O2 positive electrodes are assembled and their cycling performances are evaluated. The cells assembled with the surface-modified separators demonstrate superior cycling performance compared to cells prepared with pristine PE separator, both at ambient temperatures and at elevated temperature. (C) 2015 Elsevier B.V. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0378775315000488http://hdl.handle.net/20.500.11754/24133
ISSN
0378-7753; 1873-2755
DOI
http://dx.doi.org/10.1016/j.jpowsour.2015.01.047
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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