Separator for the manufacture of lithium-ion batteries made of a multi-porous multilayer separator foil with: -one microporous polyethylene layer between two microporous polypropylene layers and whether or not coated with aluminium oxide on both sides, -a width of 65 mm or more but not more than 170 mm, -a total thickness of 10 µm or more but not more than 30 µm, -a porosity of 25 % (vol.) or more but not more than 65 % (vol.)
Part of: 85079031 — Separators — Of plastic film of a thickness not exceeding 40 micrometres
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