fig30
From: Applications of flexible polyimide: barrier material, sensor material, and functional material
Figure 30. PI battery separators’ (A) Thermal stability (comparison between traditional polyolefin microporous cell separator and PI film at different temperatures)[148]; (B) Electrolyte wettability (PI film VS polyethylene battery separator)[146]; (C) Flexibility (PI can be restored to a certain extent after mechanical operation of bending, twisting and wrinkling)[18]; (D) Processibility (the PI cell separator can be modified by molecular structure design and microscopic morphology control)[147].
