GRAFT MESOPOROUS SEPARATOR WITH ANION RECEPTING COMPOUNDS, A METHOD FOR PREPARATION THEREOF AND LITHIUM SECONDARY BATTERIES USING THE SAME

摘要

PURPOSE: A mesoporous separator grafted with an anion-binding compound is provided to improve wettability for an electrolyte of a separator and to ensure electrochemical stability compared with a conventional separator. CONSTITUTION: A mesoporous separator is grafted with an anion-binding compound represented by chemical formula 1. In chemical formula 1, R1, R2 and R3 are hydrogen or methyl group; m is an integer of 0-30; and X is boron(B) or aluminum(Al). A method for manufacturing the mesoporous separator comprises the steps of: impregnating an anion-binding compound monomer represented by chemical formula 1 and a porous separator in an organic solvent in a radiation irradiation device; substituting oxygen with nitrogen; and grafting the impregnated porous separator by irradiating radiation.