LITHIUM SECONDARY BATTERY INCLUDING SEPARATOR WITH CERAMIC LAYER HAVING FIRST CERAMIC PARTICLE BONDED TO SECOND CERAMIC PARTICLE AND MANUFACTURING METHOD THE SAME

Disclosed are a lithium secondary battery including: a positive electrode; a negative electrode; an electrolyte; and a separator including a separator substrate and a ceramic layer formed on one surface or both surfaces of the separator substrate. Particularly, the ceramic layer may include a first ceramic particle including an epoxide group and a second ceramic particle including an amine group, and the first ceramic particle may be chemically bonded to the second ceramic particle.