Improving the cycling stability of LiNi0.8Co0.1Mn0.1O2 by boron doping to inhibit Li/Ni mixing

Abstract

Boron doping significantly reduces the Li/Ni cation mixing of LiNi_0.8Co_0.1Mn_0.1O₂, decreases the charge transfer resistance, and improves the reversibility of the H2–H3 phase transition at 4.2 V. Among similar materials, the cathode material with 1.0 mol% boron doping shows excellent cycling performance, with capacity retention of 96% after 200 cycles at 50 °C.