POSITIVE ELECTRODE FOR LITHIUM AIR BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM AIR BATTERY EMPLOYING THE SAME

摘要

PURPOSE: A lithium air battery comprises a catalyst or/and a catalyst support comprising a carbon-based material doped by a non-metallic element, is provided to increase the activity of a catalyst, to retrain overvoltage at charging/discharging, and improving energy efficiency. CONSTITUTION: A lithium air battery comprises a carbon-based material doped by a non-metallic element. A manufacturing method of the positive electrode comprises: a step of preparing mixed solution by mixing non-metallic precursor and hollow porous material into solvent; a step of drying the mixed solution, and forming a plasticized material by plasticizing the dried material under un-activated atmosphere; and a step of contacting the plasticized material to storing acid. A lithium air battery(10) comprises a negative electrode(13) capable of charging/discharging lithium ions, an electrolyte(18), and a positive electrode(15) having oxygen as a positive electrode active material.