Lithium Secondary Battery Comprising Separator

Abstract: The present application relates to a separator for a lithium secondary battery, and a lithium secondary battery comprising same, and provides the lithium secondary battery comprising a separator, which is placed between a silicon-based anode and a cathode, and an electrolyte, wherein the silicon-based anode comprises an anode current collector layer and an anode active material layer, which is provided on one surface or both surfaces of the anode current collector layer and comprises an anode active material layer composition, the anode active material layer composition comprises at least one selected from the group consisting of a silicon-based active material, an anode conductive material and an anode binder, the silicon-based active material comprises at least one selected from the group consisting of SiOx (x is 0) and SiOx (0

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