Synthesis of nano cubic microstructure LiNi0.8Co0.1Mn0.1O2 cathode materials via rapid precipitation assisted with hydrothermal treatment

Jing Lao; Yangcheng Lu

doi:10.1016/j.heliyon.2024.e40201

Synthesis of nano cubic microstructure LiNi_0.8Co_0.1Mn_0.1O₂ cathode materials via rapid precipitation assisted with hydrothermal treatment

Heliyon. 2024 Nov 7;10(22):e40201. doi: 10.1016/j.heliyon.2024.e40201. eCollection 2024 Nov 30.

Authors

Jing Lao¹, Yangcheng Lu²

Affiliations

¹ State Key Laboratory of Chemical Engineering, Department of Chemical, China.
² Engineering, Tsinghua University, Beijing, 100084, China.

Abstract

In this work, a modified Ni-rich cathode material LiNi_0.8Co_0.1Mn_0.1O₂ with a unique nano cubic microstructure is successfully synthesized via a rapid precipitation assisted with hydrothermal treatment. The formation of this distinctive microstructure is attributed to the homogeneous rapid precipitation in microreactor, which predominantly generates uniform crystal nuclei. The as-prepared material with nano-/microstructure shows superior initial reversible capacity (205.3 mAh·g^-1 at 2.7-4.3 V) and rate capability (163.9 mAh·g^-1 at 5 C). Additionally, it maintains a high capacity (188.2 mAh·g^-1) with a retention of 87.2 % at 1 C after 200 cycles, demonstrating outstanding cycling stability. Our work presents a straightforward and efficient approach for producing nano-cubic microstructure layered cathode materials.

Keywords: Lithium-ion battery; Microstructure; Ni-rich cathode materials; Rapid precipitation.