Process for manufacturing battery components

A process for manufacturing a component of a secondary battery, said process comprising:

• (i) preparing a liquid composition, wherein the liquid composition comprises:
• a liquid medium selected from the group consisting of aliphatic ketones, cycloaliphatic ketones, cycloaliphatic esters and mixtures thereof, and
• at least one fluorinated polymer (F), wherein polymer consists of:
• (a) from 1.5% to 3.5% by moles of recurring units derived from hexafluoropropylene (HFP),
• (b) from 0.5% to 1.5% by moles of recurring units derived from at least one (meth)acrylic monomer (MA) of formula (III):
• wherein:
• R″1, R″2 and R″3 are hydrogen atoms, and
• R″x is a hydrogen atom or a C1-C5 hydrocarbon moiety comprising at least one hydroxyl group, and
• (c) recurring units derived from vinylidene fluoride (VDF) in an amount that is complement to 100% by moles of total recurring units,
• wherein at least 8% by weight of polymer (F), based on the total volume of the liquid composition, dissolves in the liquid medium at temperatures comprised between 20° C. and 80° C.;
• and
• (ii) processing said liquid composition to provide a film.