Fabrication method of air electrode using spinel structured solid solution, and the air electrode thereby

摘要

PURPOSE: A manufacturing method of an air electrode is provided to manufacture the air electrode which is capable of reducing overvoltage in an oxygen reduction reaction and oxygen generation reaction, and has an improved charging and discharging performance. CONSTITUTION: A manufacturing method of an air electrode for a lithium/air secondary battery comprises: a first step manufacturing a spinel-structured Mn_1.5Co_1.5O_4 solid solution; a step of dissolving the spinel-structured Mn1.5Co1.5O4 solid solution and a polymer binder into a solvent; and a step of coating a porous metal support with the mixture with the Mn1.5Co1.5O4 solid solution and the polymer binder. The mixture with Mn1.5Co1.5O4 solid solution and polymer binder additionally comprises ketjen black carbon.