Electrode and separator material for lithium ion cells and method for the production thereof

摘要

The negative electrode has an active layer forming a porous outer surface. An outer surface of the active layer is coated with nanoparticle, which is selected from a group consisting of aluminum oxide, zirconium oxide and silicon oxide. The active layer has active compound particles adhered on each other. The active layer is partially covered by a porous functional layer, which is provided for receiving electrolyte and for ionic conduction during operation of the electrode, and used as an electrode blocker. The base material of the active layer is made of graphite or hard carbon. Independent claims are also included for the following: (1) a separator composite material for separating an electrode from an electrochemical device (2) a method for producing the negative electrode for the electrochemical device (3) a method for producing the separator composite material.