Exploration of TiMn/Ti anode for optimizing the structure and performance of electrolytic manganese dioxide

With the deepening application of manganese based cathode materials in new energy vehicle power batteries and wind solar energy storage batteries, diversified application scenarios also demand higher and more diverse performance of manganese based cathodes. This work adopts a new type of TiMn/Ti anode to replace traditional Ti anode preparing electrolytic manganese dioxide (EMD), to meet the requirements of manganese based batteries. Results show that the electrolysis process based on TiMn/Ti anode successfully achieves controllable adjustment of EMD structure by changing process parameters. Besides, the relationship between EMD structure and battery performance was studied. Meanwhile, density functional theory (DFT) calculation reveals that the existence of Mn (III) in EMD is the key to prepare a optimized non-stoichiometry Li1+yMn2-yO4. This work improves the performance of the cathodes of manganese based batteries by optimizing the quality of raw materials, providing a new perspective for the development of high-quality manganese based batteries.