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Preparation and Characterization of Porous PVdF-HFP/clay Nanocomposite Membranes

Mi Jin Koh Hae Young Hwang Deuk Ju Kim Hyeng Jun Kim Young Taik Hong

材料科学技术(英文)

Polyvinylidene fluoride-hexafluoropropylene (PVdF-HFP) / clay nanocomposite membranes were prepared by phase inversion method through controlling retention time to apply for a lithium ion secondary batteries. Increased membrane porosity with macrovoids was observed at increasing retention time. Part...

关键词: PVdF-HFP , Porosity , Mechanical properties , Clay , Separator

改性纳米SiO2对PVdF—HFP膜形态和性能影响的研究

孟菊雯 , 张明祖 , 倪沛红 , 徐玲妍 , 何金林 , 李晓菲

功能材料

利用不同硅烷偶联剂改性纳米SiO2,并将改性物分别加入聚(偏氟乙烯-六氟丙烯)共聚物(PVdF—HFP)溶液中,制备成锂离子电池隔膜。FT—IR和TGA测试表明,偶联剂已成功接枝到纳米SiO2表面;SEM、拉伸、热收缩和交流阻抗测试结果显示,电池隔膜中纳米SiO2的分散性、膜的机械强度、热收缩及电导...

关键词: PVdF—HFP , 纳米SiO2 , 改性 , 锂离子电池 , 隔膜

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