Skip to content
Triumph Horizon
Log in
Batteries glossary

Separator

Also called separator film

A thin porous film, usually polyethylene or polypropylene, that keeps a cell's electrodes from touching while letting ions pass through. A separator failure can cause an internal short circuit.

Used in these articles

Related terms

Electrochemistry and cell basics

Related coverage

Subscribers read the desk company and technology reports on the names it covers, including new reports before they are published on datadeep.tech.