Porous composite product particularly with high specific surface area, method for preparing and electrode for electrochemical assembly formed with a porous composite film

Abstract

The invention concerns a porous composite product in particular with high specific surface area, characterised in that it is formed of a polymeric material and at least 20% of one or several fillers, and in that the product is obtainable by extrusion. The invention also concerns a method for preparing a porous composite product characterised in that it consists in: a) forming a mixture containing one or several insoluble polymers, one or several soluble or calcinable polymers, one or several fillers; b) extruding said mixture for forming an extruded precursor product; c) eliminating the soluble or calcinable polymer(s) of the extruded precursor product; recuperating the porous composite product. The invention also concerns all extruded object consisting of a porous composite product in particular with high specific area. Finally it concerns an electrode formed of a film of porous composite product.

Dependencies are inferred from the claim text.