Metal-organic frameworks as cathode materials for Li-O2 batteries

Abstract

Metal-organic frameworks (MOFs) with open metal sites enrich the population of O2 in the pores significantly and assist the Li-O2 reaction when employed as a cell electrode material. A primary capacity of 9420 mA h g(-1) is achieved in a cell with Mn-MOF-74; more than four times higher than the value obtained in a cell without an MOF.

Keywords: electrochemistry; lithium-air batteries; metal-organic frameworks; open metal sites; oxygen adsorption.