Cobalt/aluminum co-substitution in a LiNi0.9Mn0.1O2 layered cathode for improving kinetics

Zhiming Xiao; Bao Zhang; Xinyou He; Xing Ou

doi:10.1039/d3cc01099f

Cobalt/aluminum co-substitution in a LiNi_0.9Mn_0.1O₂ layered cathode for improving kinetics

Chem Commun (Camb). 2023 Jun 22;59(51):7935-7938. doi: 10.1039/d3cc01099f.

Authors

Zhiming Xiao¹, Bao Zhang¹, Xinyou He¹, Xing Ou¹

Affiliation

¹ Engineering Research Center of the Ministry of Education for Advanced Battery Materials, School of Metallurgy and Environment, Central South University, Changsha 410083, P. R. China. ouxing@csu.edu.cn.

PMID: 37272911
DOI: 10.1039/d3cc01099f

Abstract

We report the improved kinetic mechanism of a nickel-rich LiNi_0.84Mn_0.10Co_0.03Al_0.03O₂ cathode. The important role of Co/Al in inhibiting cation disorder to increase the lithium ion diffusion rate is revealed. Impressively, it retains an excellent capacity retention of 76.8% after 200 cycles under the high-rate condition (5C).

MeSH terms

Aluminum*
Cobalt*
Diffusion
Electrodes
Kinetics

Substances

Aluminum
Cobalt