Saman Mesvari - Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran,Iran
Mojtaba Shariati Niasar - Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran,Iran
Javad Karimi-Sabet - Material and Nuclear Fuel Research School (MNFRS), Nuclear Science and Technology ResearchInstitute, Tehran, Iran

Manganese oxide-based materials (such as Hydrogen Manganese Oxide, HMO) are used in rechargeable batteries and lithium adsorption. Material development in these industries is focused on improving structural stability. Process conditions can increase Mn dissolution, which leads to phase changes and decrease structural stability. The Jahn-Teller effect is a distortion of the molecular structure caused by electron-electron repulsion, leading toincreasedMn dissolution and reducedstructual stability. By controlling the process and material parameters, such as doping, temperature, and coating, the Jahn-Teller effect can be suppressed, thus decreasing the rate of Mn dissolution and improving the structural stability of the material. In this study, the effect of these factors on Mn dissolution and the structural stability of HMO (or Lithium Manganese Oxide, LMO) is described. Controlling parameters to reduce Mn dissolution and increase structural stability is crucial for the development of advanced materials for various applications. Understanding the relationship between Mn dissolution and structural evolution is essential to solve capacity fading and stability issues.

Lithium manganese oxide, LMO, HMO, Lithium, Mn dissolution, Li-Battery