Partially Manganese-Substituted Li-Rich Antiperovskite (Li₂Fe)SeO Cathode for Li-Ion Batteries.

ABSTRACT: Lithium-rich antiperovskites are promising high-capacity cathode materials for next-generation Li-ion batteries. In this study, partially Mn-substituted (Li₂Fe_1-y Mn _y )-SeO (y = 0.1-0.4) cathode materials were synthesized via solid-state reaction. Structural analysis confirmed the cubic antiperovskite phase with lattice expansion proportional to the Mn content, while thermal analysis revealed congruent melting behavior with improved thermal stability. Electrochemical characterization demonstrated good cycling stability across all Mn-substituted compositions. The (Li₂Fe_0.9Mn_0.1)-SeO cathode exhibited an initial discharge capacity of 123 mAh/g and excellent cycling stability, but higher Mn content led to

SUBMITTER: Graßler N 

PROVIDER: S-EPMC12444673 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature