Preparation and electrochemical properties of Ce doped lithium-rich manganese oxygen cathode materials for lithium-ion battery

Bozhong Cao; Tong Zhang; Wenjian Li; Qingsen Zhong; Lei Ling; Jincheng Zhang; Yusheng Lu; Xiaofei Bian

doi:10.1117/12.3015251

6 February 2024 Preparation and electrochemical properties of Ce doped lithium-rich manganese oxygen cathode materials for lithium-ion battery

Bozhong Cao, Tong Zhang, Wenjian Li, Qingsen Zhong, Lei Ling, Jincheng Zhang, Yusheng Lu, Xiaofei Bian

Author Affiliations +

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 129790Q (2024) https://doi.org/10.1117/12.3015251
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

Li_1.18Ni_0.15Co_0.15Mn_0.52O₂, a lithium-rich manganese oxygen cathode material , was successfully generated with the sol-gel methods, then we modified it using Ce4+ and obtained a new Li_1.18Ni_0.15Co_0.15Mn_0.52-xCexO₂(x=0, 0.01) material. scanning electron microscopy (SEM) and X-ray diffraction (XRD) testing were used to analysis the materials, and electrochemical properties were explored by constant current charge/discharge and cyclic voltammetry (CV) tests. Test results showed that cerium-doped cathode material maintained its lamellar structure without significant changes in microscopic morphology. It was also found that the capacity retention rate of the doped materials was 89% after 50 cycles at 0.2C, while that of the undoped materials were 77%. In addition, the discharge capacity of the doped materials at 0.2, 0.5, 1, 2.5, 5 and 10C is higher than that of the undoped materials. The above results show that Ce⁴⁺ doping can improve the Electrochemical performance of Li-rich Mn-based cathode materials .

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Bozhong Cao, Tong Zhang, Wenjian Li, Qingsen Zhong, Lei Ling, Jincheng Zhang, Yusheng Lu, and Xiaofei Bian "Preparation and electrochemical properties of Ce doped lithium-rich manganese oxygen cathode materials for lithium-ion battery", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 129790Q (6 February 2024); https://doi.org/10.1117/12.3015251

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