A team of researchers at the Massachusetts Institute of Technology (MIT) is working on lithium-air batteries that could help in generating more powerful, lightweight batteries than available currently. Yang Shao-Horn is an MIT associate professor of mechanical engineering. According to him many research groups are trying to improve on lithium-air batteries. But they have difference of opinions about the types of electrode materials to be used. It has to be noted that electrode materials are responsible for electrochemical reactions happening inside these batteries.