Posco Holdings has developed a new manufacturing method with Korea University to reduce voltage decay in lithium battery cathodes. The research was jointly conducted by a team led by Professor Park Hyuk-jun of the Department of Materials Science and Engineering at Korea University and the N.EX.T Hub research institute of Posco Holdings. It focuses on lithium-rich manganese-based cathode materials, aiming to improve the performance and lifespan of next-generation lithium-ion batteries by adjusting heat treatment temperatures without altering the material's chemical composition.