@article{Hu2025, 
author = {Jiaxuan Hu and Hengyu Ren and Xiaohu Wang and Zijian Li and Wenguang Zhao and Haocong Yi and Feng Pan and Qinghe Zhao},
title = {Modulating surface reconstruction of LiNi0.8Co0.1Mn0.1O2 via simply blending the nano-sized LiCoO2 particles in electrode},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {8},
pages = {94907576},
keywords = {surface reconstruction, Li-ion battery, cycle performance, rocksalt phase, LiNi0.8Co0.1Mn0.1O2 (NCM811)},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907576},
doi = {10.26599/NR.2025.94907576},
abstract = {LiNi0.8Co0.1Mn0.1O2 (NCM811) is a high-capacity and widely used nickel-rich cathode material for lithium-ion batteries, but its fragile surface structure severely limits the cycle stability. In this work, by blending the nano-sized LiCoO2 (nano-LCO) particles in NCM811 electrode, the surface structure reconstruction of NCM811 upon cycle is successfully achieved. Due to the short Li+ diffusion path within the nano-LCO particles, Li+ diffusion kinetics is significantly enhanced. Thus, when these nano-particles are blended in the NCM811 electrode, the Li+ extraction across the surface of NCM811 particles can be homogenized, which further promotes the uniformity of “layered/rocksalt (RS)” phase transitions in the surface region. This homogenization of surface state of charge (SOC) inhibits the rapid formation and thickening of the high-impedance RS phase, thereby enhancing the cycle and rate performances of NCM811-based electrode. This study deepens the understanding of the performance optimization mechanisms at the electrode level for NCM811-based electrodes.}
}