Chem Rev 104(10):4271Ĭao Y, Meng X, Elam JW (2016) Atomic layer deposition of LixAlyS solid-state electrolytes for stabilizing lithium-metal anodes. Whittingham MS (2004) Lithium batteries and cathode materials. Phattharasupakun N, Wutthiprom J, Duangdangchote S, Sarawutanukul S, Tomon C, Duriyasart F, Tubtimkuna S, Aphirakaramwong C, Sawangphruk M (2021) Core-shell Ni-rich NMC-nanocarbon cathode from scalable solvent-free mechanofusion for high-performance 18650 Li-ion batteries. Kim UH, Park GT, Conlin P, Ashburn N, Cho K, Yu YS, Shapiro DA, Maglia F, Kim SJ, Lamp P, Yoon CS, Sun YK (2021) Cation ordered Ni-rich layered cathode for ultra-long battery life. Schipper F, Erickson EM, Erk C, Shin JY, Chesneau FF, Aurbach D (2016) Recent advances and remaining challenges for lithium ion battery cathodes. J ACS Nano 14(2):1243ĭunn B, Kamath H, Tarascon JM (2011) Electrical energy storage for the grid: a battery of choices. Pender JP, Jha G, Youn DH, Ziegler JM, Andoni I, Choi EJ, Heller A, Dunn BS, Weiss PS, Penner RM, Mullins CB (2020) Electrode degradation in lithium-ion batteries. Xu GL, Liu X, Daali A, Amine R, Chen Z, Amine K (2020) Challenges and strategies to advance high-energy nickel-rich layered lithium transition metal oxide cathodes for harsh operation. These results indicate that AlF 3 protective layer by ALD can be an effective method for improving the performance of high-energy–density cathode materials. Moreover, it can suppress the generation of residual alkali on the NCM811 surface during storage, improving the interfacial stability between NCM811 and the electrolytes. In addition, the AlF 3 protective layer can prevent the Li/Ni mixture and Li loss during cycling by limiting the lattice expansion. This excellent electrochemical performance is attributed to the conformal AlF 3 protective layer that prevents the NCM811 from coming into direct contact with the electrolyte. In addition, NCM811-AlF 3 maintained a capacity of 167 mAh g −1, which exceeded that of pristine NCM811 (126 mAh g −1) after 500 cycles. ![]() After the AlF 3 layer protection, the initial capacity of the quasi-solid-state pouch cell with the NCM811 cathode was significantly increased from 148 to 180 mAh g −1. This study introduces an AlF 3 protective layer onto the surface of NCM811 (NCM811-AlF 3) by atomic layer deposition (ALD). However, NCM811 suffers from poor cycling stability and storage sensitivity to air and moisture. LiNi 0.8Co 0.1Mn 0.1O 2 (NCM811) is a promising cathode material for lithium-ion batteries due to its high energy density and low cost.
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