Iron cathode (IMAGE) Oregon State University Caption A collaboration co-led by Oregon State University chemistry researcher David Ji is hoping to spark a green battery revolution by showing that iron instead of cobalt and nickel can be used as a cathode material in lithium-ion batteries. Credit Image provided by Xiulei "David" Ji, Oregon State University Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.