Insight into the atomic structure of Li₂MnO₃ in Li-rich Mn-based cathode materials and the impact of its atomic arrangement on electrochemical performance

Abstract

Local heterogeneity in crystal lattice is directly observed in synthesized Li₂MnO₃/LiMO₂ (M = Ni, Mn) cathode materials. With SAED application, for the first time, we accordingly uncover that the lattice heterogeneity is induced by different Li₂MnO₃ atomic arrangements coexisting in same crystal domain.