| Abstract Scope |
For the sustainable development of next-generation batteries, exploring new cathode chemistries is crucial, as they primarily govern energy density, cycle life, and cost. The major challenge lies in balancing these interrelated factors. This requires the use of earth-abundant materials such as manganese, which serves as a key redox source and offers higher charge storage during repeated ion extraction and reinsertion processes. In this talk, I will introduce new strategies for developing chemistries through composition, structure, and active materials engineering, focusing on how these materials fundamentally behave during cycles. The study investigates electrochemical mechanisms involving redox activities from both transition-metal cations and oxygen anions, reframing the intercalation reaction behavior. This is enabled by the reversibility of redox reactions and the stability of structural transformations. Through extensive characterization, a deeper understanding of these mechanistic insights into the structure-performance relationship and chemo-mechanical stability will lead to innovative design principles for energy materials. |