Battery (All): Terminology: Separator
WARNING: This page is about a different car, the 2010 Volvo V70, 2009 Volvo V70, and 2008 Volvo V70. However, it is still accessible from the selected car via links, so may be relevant.
A type of plastic insulator enclosing each positive plate in the cell. The roll of the separator is to separate the positive and negative plates from each other and to catch particles that detach from the positive plate to avoid short-circuits.
For AGM-batteries, the pocket separator consists of a thin fiber-glass mat (AGM = Absorbed Glass Mat).
See SEPARATOR .