ELECTRODE MIXTURE FILM, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

The present invention relates to an electrode mixture film including an electrode active material, a conductive material, and a fiberizable binder, wherein the electrode mixture film includes a side portion positioned at both ends in a width direction of the electrode mixture film, and a central portion disposed between the side portions, and the crystallinity of a binder included in the central portion is higher than the crystallinity of a binder included in the side portions.