Facile Surface Modification of MgMn₂O₄ Positive-Electrode Material for Improving Cycle Performance of Magnesium Rechargeable Batteries.

ABSTRACT: MgMn₂O₄ with a tetragonal spinel structure shows promise as a positive-electrode material in magnesium rechargeable batteries (MRBs), which have drawn considerable attention as post lithium-ion batteries. However, the material currently suffers from poor cycle performance. In this study, we attempt to improve the cycle performance of MgMn₂O₄ via the Zr modification of its particle surface. X-ray photoelectron spectroscopy and energy-dispersive X-ray spectroscopy demonstrate that the surface modification is successfully performed by immersing MgMn₂O₄ powder into a Zr-containing aqueous solution, followed by heat treatment. However, Zr segregation is observed at high Zr concentration. Furthermore, structural analyses using syn

SUBMITTER: Kitamura N 

PROVIDER: S-EPMC9774335 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature