A method for producing a molded article, preferably a sheet-type molded article, which method comprises the following stage:I) Compounding and melt extrusion of a mixture I which comprises a blend II which contains: a) from 1 to 95 wt % of at least one pigment III having a primary particle size of from 5 nm to 20 mm which is selected from the group consisting of an electrochemically inert solid IIIa, a compound IIIb which during charging is able to give off lithium ions, and a compound IIIc which during charging is able to take up lithium ions, and a mixture of the solid Ma with the compound IIIb or the compound IIIc, b) from 5 to 99 wt % of at least one polymeric binder IV, and c) from 0 to 200 wt %, based on the total amount of the components a) and b), at least one plasticizer V,wherein the proportion by weight of the blend II in the mixture I is from 1 to 100 wt %, andwherein mixtures I comprising blends II containing, as the polymeric binder IV, a copolymer of vinylidene fluoride (VdF) and hexafluoropropylene (HFP) having an HFP content of from 8 to 25 wt % and, as the plasticizer V, a compound selected from the group consisting of dibutyl phthalate, dimethyl phthalate, diethyl phthalate, tris(butoxyethyl)phosphate, propylene carbonate, ethylene carbonate, trimethyl trimellitate and mixtures thereof are excluded.