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Ionic conductivity and interfacial properties of polymer electrolytes based on PEO and boroxine ring polymer
Author(s) -
Yang Yunsong,
Inoue T.,
Fujinami T.,
Mehta M. A.
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.10090
Subject(s) - electrolyte , trifluoromethanesulfonate , ionic conductivity , lithium (medication) , ethylene oxide , materials science , polymer , polymer chemistry , ionic bonding , chemical engineering , conductivity , inorganic chemistry , copolymer , chemistry , ion , composite material , organic chemistry , electrode , medicine , engineering , endocrinology , catalysis
Blended polymer electrolytes based on poly(ethylene oxide) (PEO) and boroxine ring polymer (BP) solvated with lithium triflate were formulated and evaluated. Compared to PEO–salt polymer electrolyte, ionic conductivities of blended polymer electrolytes were two orders of magnitude higher in a low‐temperature range; as well, lithium transference numbers were increased to ∼ 0.4. These were due to the increased mobility and anion trapping of boroxine rings. BP also exhibited the stabilizing effect on lithium–polymer electrolyte interface, and a reduced interfacial resistance between lithium metal and the polymer electrolyte was found with increasing of BP content. Polymer electrolytes based on PEO and BP are suitable for use in lithium secondary battery. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 84: 17–21, 2002; DOI 10.1002/app.10090