Strategic Integration of Cobalt-Free Layered-Spinel Cathodes via Solution Combustion Method for High-Performance Lithium-Ion Batteries.

ABSTRACT: Structurally integrated cobalt-free layered-spinel cathode material with the composition Li_1.2Ni_0.24Mn_0.56O₂ (LNMO) was synthesized via the sucrose-assisted solution combustion method (SCM). The material was calcined at 650, 750, 850, and 950 °C, denoted as LNMO-650, LNMO-750, LNMO-850, and LNMO-950. Among these, the sample calcined at 850 °C exhibited excellent electrochemical performance due to the optimal phase composition achieved at this temperature. The synthesized LNMO materials are composed of both Li-rich layered (space group C2/m) and spinel phases (space group Fd3̅m) as evidenced by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), and cyclic voltammetry (CV) analyses.

SUBMITTER: Ramesh P 

PROVIDER: S-EPMC12658637 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature