An Efficient Synthetic Method to Prepare High-Performance Ni-rich LiNi_0.8Co_0.1Mn_0.1O₂ for Lithium-Ion Batteries

Ni-rich LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode material is one of the most promising cathodes for lithium-ion batteries with high energy density. However, the commonly used synthetic methods for this material are time-consuming and costly, limiting their practical application. Herein, an efficient synthetic method for preparing uniform spherical NCM811 particles was developed by combining rapid coprecipitation and spray drying techniques. The as-obtained NCM displays superior cycling stability and rate capabilities even at harsh conditions, such as high cutoff voltage (4.5 V) or elevated temperature (60 °C). Moreover, the NCM811/graphite full cell exhibits a high capacity retention of 94.7% after 200 cycles at 1 C and superior rate capability of 140.9 mAh g–1 at 10 C. These results demonstrate the commercialization possibility of our developed methods for preparing NCM and other electrode materials, at large scale and low cost.