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A novel electrospun TPU/PVdF porous fibrous polymer electrolyte for lithium ion batteries

Authors

  • Na Wu,

  • Bo Jing,

    1. Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Xiangtan University, Xiangtan, Hunan 411105, People's Republic of China
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  • Qi Cao,

    Corresponding author
    1. Key Laboratory of Environmentally Friendly Chemistry and Applications of Minister of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China
    • Key Laboratory of Environmentally Friendly Chemistry and Applications of Minister of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China
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  • Xianyou Wang,

  • Hao Kuang,

  • Qiang Wang


Abstract

Novel blend-based gel polymer electrolyte (GPE) films of thermoplastic polyurethane (TPU) and poly(vinylidene fluoride) (PVdF) (denoted as TPU/PVdF) have been prepared by electrospinning. The electrospun thermoplastic polyurethane-co-poly (vinylidene fluoride) membranes were activated with a 1M solution of LiClO4 in EC/PC and showed a high ionic conductivity about 1.6 mS cm−1 at room temperature. The electrochemical stability is at 5.0 V versus Li+/Li, making them suitable for practical applications in lithium cells. Cycling tests of Li/GPE/LiFePO4 cells showed the suitability of the electrospun membranes made of TPU/PVdF (80/20, w/w) for applications in lithium rechargeable batteries. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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