SEPARATOR PROVIDED WITH ASYMMETRICAL PORE STRUCTURES FOR AN ELECTROCHEMICAL CELL

摘要

The invention relates to a separator for an electrochemical cell, said separator comprising (A) a flexible carrier provided with holes, and (B) a porous ceramic material which is used to fill the holes of the carrier. The ceramic material is suitable for receiving an ion-conducting electrolyte, and has a first porous surface which is characterised by an average pore size, and at least one second porous layer for bringing into contact with an electrode. The average pore size of the second porous layer is smaller than the average pore size of the first porous layer.