PVDF-HFP-based porous polymer electrolyte membranes for lithium-ion batteries

Publication: Research - peer-reviewJournal article – Annual report year: 2008

  • Author: Miao, Ruiying

    Univ Sci & Technol Beijing, Dept Phys Chem

  • Author: Liu, Bowen

    Univ Sci & Technol Beijing, Dept Phys Chem

  • Author: Zhu, Zhongzheng

    Univ Sci & Technol Beijing, Dept Phys Chem

  • Author: Liu, Yun

    Univ Sci & Technol Beijing

  • Author: Li, Jianling

    Univ Sci & Technol Beijing

  • Author: Wang, Xindong

    Univ Sci & Technol Beijing

  • Author: Li, Qingfeng

    Energy and Materials, Department of Chemistry, Technical University of Denmark, Building 207, 2800, Lyngby, Denmark

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As a potential electrolyte for lithium-ion batteries, a porous polymer electrolyte membrane based on poly(vinylidenefluoride-hexafluoropropylene) (PVDF-HFP) was prepared by a phase inversion method. The casting solution, effects of the solvent and non-solvent and addition of micron scale TiO2 particles were investigated. The membranes were characterized by SEM, XRD, AC impedance, and charge/discharge tests. By using acetone as the solvent and water as the non-solvent, the prepared membranes showed good ability to absorb and retain the lithium ion containing electrolyte. Addition of micron TiO2 particles to the polymer electrolyte was found to enhance the tensile strength, electrolyte uptake, ion conductivity and the electrolyte/electrode interfacial stability of the membrane.
Original languageEnglish
JournalJournal of Power Sources
Publication date2008
Volume184
Issue2
Pages420-426
ISSN0378-7753
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 20

Keywords

  • Electrolyte, Polymer membrane, Porous, Lithium-ion battery
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