| abstract |
FIELD: electricity. n SUBSTANCE: according to the invention, an organic/inorganic composite divider contains a porous substrate with pores; and a porous active layer containing a mixture of inorganic particles and a binding polymer which covers at least one surface of said porous substrate. The porous active layer is characterised by a thickness-through composition morphology heterogeneity where the quantitative relation 'binding polymer/inorganic particles' on the surface layer is higher than the quantitative relation 'binding polymer/inorganic particles' inside the surface layer. n EFFECT: improved performance of an accumulator. n 28 cl, 5 dwg, 1 tbl, 6 ex |