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    National Tsing Hua University Institutional Repository > 工學院  > 化學工程學系 > 期刊論文 >  Thermal shutdown behavior of PVdF-HFP based polymer electrolytes comprising heat sensitive cross-linkable oligomers


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/37837


    Title: Thermal shutdown behavior of PVdF-HFP based polymer electrolytes comprising heat sensitive cross-linkable oligomers
    Authors: C.L. Cheng;C.C. Wan;Y.Y. Wang;M.S. Wu
    教師: 王詠雲
    Date: 2005
    Publisher: Elsevier
    Relation: Journal of Power Sources, Elsevier, Volume 144, Issue 1, 1 June 2005, Pages 238-243
    Keywords: PVdF-HFP copolymer
    Polymer electrolytes
    Thermal shutdown
    Cross-linking
    Mechanical property
    Abstract: c2005 Elsevier - PVdF-HFP (polyvinylidenefluoride-hexafluoropropylene) polymer electrolytes comprising cross-linkable PEGDMA (polyethylene glycol dimethacrylate) oligomers with thermal shutdown characteristic have been developed. In contrast to the melting mechanism of polyolefin, this new polymer electrolyte possesses a thermal shutdown characteristic by a rapid cross-linking reaction of PEGDMA. The cross-linked PEGDMA network inside the PVdF-HFP matrix can provide the mechanical strength for the electrolytes, while the un-cross-linked PEGDMA oligomers serve as plasticizers for PVdF-HFP to improve the mobility of lithium ions at normal operation temperatures. In addition, the un-cross-linked PEGDMA oligomers can initiate cross-linking upon a sudden rise of temperature and thus provide thermal shutdown protection at elevated temperatures.
    URI: http://www.elsevier.com/
    http://nthur.lib.nthu.edu.tw/handle/987654321/37837
    Appears in Collections:[化學工程學系] 期刊論文

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