Visualizing lithium-rich manganese-based layered oxides: Advancing dynamic monitoring to decipher battery chemistry

Abstract

Lithium-rich manganese oxides (LRMOs) show great promise as high capacity, cost effective cathodes for next-generation Li-ion batteries, Nevertheless, they still confront issues such as voltage decline, capacity loss, and structural instability. Recent breakthroughs in situ / operando characterization methods have emerged as highly effective means for uncovering the dynamic changes in structure and electrochemical activity of these materials. This review delves into advanced methodologies enabling the real time observation of phase alterations, oxygen redox interactions, and the migration of transition metals (TMs) throughout the battery's charge/discharge cycles. By combining various charac..