Improving the Performance of the Layered Nickel Manganese Oxide Cathode of Sodium-Ion Batteries by Direct Coating with Sodium Niobium Oxide.

ABSTRACT: This research highlights the efficacy of NaNbO₃ as a coating for P2-Na_2/3Ni_1/3Mn_2/3O₂ cathodes in sodium-ion batteries. The coating enhances the kinetic behavior and cyclability of the electrochemical cells, as shown by electrochemical measurements. XRD analysis indicates that Nb does not incorporate into the cathode structure, implying a physical interaction between the coating and the cathode material. XRF analysis and EDX mapping confirm the actual composition and uniform dispersion of elements throughout the sample, while the electron micrographs evidence the occurrence of NaNbO₃ particles modifying the surface of the layered oxide. The Ni⁴⁺/Ni³⁺ and Ni³⁺/Ni²⁺ redox pairs, alon

SUBMITTER: Lavela S 

PROVIDER: S-EPMC11503625 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature