The PE separator for lithium batteries is a microporous film made of polyethylene (PE) as the base material and is one of the key components of lithium batteries.
The functional film mainly made of polyethylene (PE) plays a key role in physically isolating the positive and negative electrodes to prevent short circuits.
The coating forms a dense barrier through high-temperature sintering, enabling the separator to withstand temperatures above 1800℃. This effectively blocks heat conduction during thermal runaway.