Lithium-ion Battery Separator FilmSETELA™
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.

Features
- (1) Chemical stability, uniform pore structure, no defects such as pin holes, toughness
- (2) The ability to electrically insulate the positive and negative electrodes
- (3) The ability to transfer ions in pores (permeability)
- (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