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Novel microporous poly(vinylidene fluoride)‐ graft ‐poly( tert ‐butyl acrylate) electrolytes for secondary lithium batteries
Author(s) -
Kader M Abdul,
Kwak Soo Kyoung,
Kang Seong Lak,
Ahn JouHyeon,
Nah Changwoon
Publication year - 2008
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.2472
Subject(s) - materials science , microporous material , crystallinity , chemical engineering , electrolyte , acrylate , lithium (medication) , ionic conductivity , polymer , electrochemistry , polyvinylidene fluoride , polymer chemistry , fluoride , acrylate polymer , composite material , inorganic chemistry , chemistry , copolymer , electrode , medicine , engineering , endocrinology
BACKGROUND: Much interest has recently been shown in improving the performance of lithium‐ion polymer batteries with gel polymer electrolytes (GPEs) due to a rapid expansion in industrial demand. Novel GPEs based on poly(vinylidene fluoride)‐ graft ‐poly( tert ‐butyl acrylate) (PVDF‐ g ‐ t BA) microporous mats are suggested in this study. RESULTS: Microfibrous polymer electrolytes were prepared using electrospinning and characterized for extent of grafting, morphology, crystallinity, electrochemical stability, ionic conductivity, interfacial resistance and cell cycleability. The degree of crystallinity was lower for t BA‐grafted PVDF mats than that of neat PVDF. The PVDF‐ g ‐ t BA showed an improvement in the ionic conductivity, electrochemical stability, interfacial resistance and cyclic performance. CONCLUSION: The t BA‐grafted PVDF microporous electrolytes are promising candidates for enhancing the performance of lithium‐ion polymer batteries. Copyright © 2008 Society of Chemical Industry