Toward High Specific Energy and Long Cycle Life Li/Mn‐Rich Layered Oxide || Graphite Lithium‐Ion Batteries via Optimization of Voltage Window

Lithium-Ion Batteries In article number 2400129, Johannes Kasnatscheew and co-workers show Li-ion-batteries with Li/Mn-rich cathodes, which have the potential to compete with state-of-the-art cathodes. Their well-known dilemma of poor cycle life at high upper-cut voltages (UCVs) and low specific energies at low UCVs can be reasonably compensated by adjusting voltage windows during formation and post formation cycles, as investigated and demonstrated for LMR || graphite cells.