Multilayer electrolyte cell, secondary battery comprising multilayer electrolyte cell and manufacturing method therefor

The present invention relates to techniques regarding a multilayer electrolyte cell, a secondary battery comprising the multilayer electrolyte cell and a manufacturing method therefor, and more specifically to a multilayer electrolyte cell in which electrolyte is composed of multiple layers by laminating a solid ceramic electrolyte having ionic liquid, and a polymer coating layer having liquid electrolyte onto a base having a porous structure, a secondary battery comprising the multilayer electrolyte cell and a manufacturing method therefor.