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Volume 34 Issue 1
Jan 2020
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Chinese Journal of High Pressure Physics  > 2020  >  34(1): 015301.
XUE Pengcheng, FAN Wenjie, WANG Genwei, WANG Bin. Effects of Loading Angle and Linear Notch on Tensile Properties of Lithium-Ion Battery Separator[J]. Chinese Journal of High Pressure Physics, 2020, 34(1): 015301. doi: 10.11858/gywlxb.20190765
Citation: XUE Pengcheng, FAN Wenjie, WANG Genwei, WANG Bin. Effects of Loading Angle and Linear Notch on Tensile Properties of Lithium-Ion Battery Separator[J]. Chinese Journal of High Pressure Physics, 2020, 34(1): 015301. doi: 10.11858/gywlxb.20190765
shu

Effects of Loading Angle and Linear Notch on Tensile Properties of Lithium-Ion Battery Separator

doi: 10.11858/gywlxb.20190765
  • 1.

    Institute of Applied Mechanics, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China

  • 2.

    Shanxi Key Laboratory of Material Strength & Structural Impact, College of Mechanical and Vehicle Engineering of Taiyuan University of Technology, Taiyuan 030024, Shanxi, China

  • 3.

    College of Engineering, Design and Physical Sciences, Brunel University, London UB83PH, UK

  • Received Date: 25 Apr 2019
  • Rev Recd Date: 08 May 2019
    Abstract
  • Lithium-ion battery separators act as the physical barriers to prevent contact between the positive and negative electrodes, and their structural integrity is critical to battery safety. In this paper, uniaxial tensile tests were carried out on four kinds of commercial separators, and the effects of loading angle and linear notch on tensile strength, elastic modulus and fracture mode were analyzed. The results show that the tensile strength of the 0° specimens without notch is the largest and the tensile strength of 90° specimens is the smallest. When the loading angles of two notched specimens are supplementary, their tensile strength is close to each other. For the notched specimens, the failure load is the largest when the notched direction is along 90°. The linear notched specimens have higher elastic modulus, but the plastic deformation is greatly reduced. Both the unnotched specimens and the notched specimens are broken along MD (machine direction) except for the 0° specimens along TD (transverse direction).

     

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