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

We report the improved kinetic mechanism of a nickel-rich LiNi0.84Mn0.10Co0.03Al0.03O2 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).

Automated summary

We present an improved kinetic mechanism for a nickel-rich LiNi0.84Mn0.10Co0.03Al0.03O2 cathode, highlighting the crucial role of Co/Al in inhibiting cation disorder and enhancing lithium ion diffusion rate. Remarkably, it exhibits an excellent capacity retention of 76.8% after 200 cycles under high-rate condition (5C).