JELLY-ROLL TYPE ELECTRODE ASSEMBLY AND METHOD FOR MANUFACTURING SAME

A jelly-roll type electrode assembly according to an embodiment of the present disclosure is a jelly-roll type electrode assembly in which a sheet-like laminate including an electrode and a separator is wound, wherein the separator includes a double-sided coating layer, the coating layer includes a mixture of a first alumina and a second alumina, the second alumina is contained in an amount of 16 to 40 parts by weight based on 100 parts by weight of the mixture, and a particle diameter of the first alumina is smaller than a particle diameter of the second alumina.