Mixed Metal Oxide Catalysts for Rechargeable Lithium-Air Batteries

Rechargeable lithium-air batteries are a promising energy storage technology for electric vehicles. However, their development is hindered by problems including poor energy efficiency and cyclability. The high recharge overpotential at carbon cathodes is one of main contributor to these problems [1]. To date, various metal [1, 2] and metal oxide catalysts [3, 4] have been shown to reduce the recharge overpotential, though the overpotential remains as a significant limiting factor. In this study, novel mixed metal oxides compounds of cobalt and manganese have been explored as electrocatalyst for improvement in the oxygen reduction reaction on charging. Mixed metal oxide catalysts were produced by combustion synthesis method and characterized usin