Anode for a lithium ion battery cell, method of manufacturing the same, and battery containing the same

摘要

TECHNICAL FIELD The present invention relates to a polymer composition for an electrode suitable for forming a lithium ion battery negative electrode, a method for producing the same, and an electrode and a lithium ion battery including the same. The composition comprises an active material comprising a crosslinkable elastomeric binder comprising graphite, an electrically conductive filler and at least one hydrogenated acrylonitrile butadiene copolymer (HNBR) usable in the anode. According to the invention, the binder comprises at least one non-hydrogenated acrylonitrile butadiene copolymer (NBR) having an acrylonitrile content of at least 40% by weight and / or at least one HNBR and is crosslinked by thermal oxidation . This process comprises successively: a) mixing the components of the composition comprising the active material, the binder in the non-crosslinked state and the electrically conductive filler to obtain a precursor mixture of the composition, b) C) applying said mixture to said non-crosslinked film in an oxygen-containing atmosphere at a temperature of from 200 to 300 DEG C in order to form a crosslinked film, Thereby obtaining an electrode.