Lithium-ion Battery Separator FilmSETELA™

Lithium-ion Battery Separator Film SETELA™

Lithium-ion battery separator film

SETELA™ is a highly functional and highly reliable battery separator film. It is widely used as a separator for secondary lithium-ion batteries often used in portable electrical and electronic components and electric vehicles.

Structural Schematic for Lithium-Ion Batteries
Structural Schematic for Lithium-Ion Batteries

Features

  1. (1) Chemical stability, uniform pore structure, no defects such as pin holes, toughness
  2. (2) The ability to electrically insulate the positive and negative electrodes
  3. (3) The ability to transfer ions in pores (permeability)
  4. (4) Safety functions
    • When the battery abnormally overheats (130 to 135°C)
    • Battery functionality is stopped by melting the separator, closing the pores
    • Even after melting, the separator retains its shape, preventing the positive and negative electrodes from short circuiting