Outstanding Electrochemical Performance of Ni-Rich Concentration-Gradient Cathode Material LiNi_0.9Co_0.083Mn_0.017O₂ for Lithium-Ion Batteries.

ABSTRACT: The full-concentrationgradient LiNi_0.9Co_0.083Mn_0.017O₂ (CG-LNCM), consisting of core Ni-rich LiNi_0.93Co_0.07O₂, transition zone LiNi_1-x-yCo_xMn_yO_2, and outmost shell LiNi_1/3Co_1/3Mn_1/3O₂ was prepared by a facile co-precipitation method and high-temperature calcination. CG-LNCM was then investigated with an X-ray diffractometer, ascanning electron microscope, a transmission electron microscope, and electrochemical measurements. The results demonstrate that CG-LNCM has a lower cation mixing of Li⁺ and Ni²⁺ and larger Li⁺ diffusion coefficients than concentration-constant LiNi_0.9Co_0.08

SUBMITTER: Li H 

PROVIDER: S-EPMC10142341 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature