METHOD FOR MANUFACTURING LITHIUM SECONDARY CELL COMPRISING A SEPARATOR PREPARED BY ADHESIVE POLYMERS AND FUNCTIONAL POLYMERS AND LITHIUM SECONDARY CELL OBTAINED BY USING THE METHOD

摘要

The present invention relates to a method for manufacturing a lithium secondary battery having a separator containing a functional polymer and a lithium secondary battery prepared using the same, and more particularly, to (1) an adhesive first polymer and a functional second to a separator; Preparing a separator by coating and drying a polymer blending layer in which the polymer is dissolved in an organic solvent; (2) inserting the coated separator of step (1) between the positive electrode and the negative electrode to produce a laminated electrode group and thermocompression bonding; And (3) inserting the electrode group prepared in step (2) into a packaging material, and then, a method of manufacturing a lithium secondary battery having a separator including a functional polymer consisting of pouring and sealing an electrolyte solution, the conventional electrolyte solution Alternatively, compared to a lithium secondary battery manufactured by adding an additive in the form of dissolving or dispersing in the electrode plate, there is an advantage in that long cycle life characteristics and process convenience in manufacturing a large area cell may be expected.;Functional Polymers, Polymer Blends, Additives, Interfacial Adhesion, Flame Retardant Polymers