Investigation of the Synergetic Effects of GO and Zn on the Electrochemical Properties of Li[Li0.20Mn0.54Ni0.13Co0.13]O2 Cathode Material
نویسندگان
1 Physics Department, Faculty of Science, Imam Khomeini International University, P.O. Box 34149-16818, Qazvin, Iran
2 Physics Department, Faculty of Science, Imam Khomeini International University, P.O. Box 34149-16818, Qazvin, Iran
3 Physics Department, Faculty of Science, Imam Khomeini International University, P.O. Box 34149-16818, Qazvin, Iran
4 Physics Department, Faculty of Science, Imam Khomeini International University, P.O. Box 34149-16818, Qazvin, Iran
doi
10.48309/chemm.2025.509286.1912چکیده
This study explores the impact of incorporating graphene oxide (GO) and zinc (Zn) on the electrochemical performance of the Li[Li0.20Mn0.54Ni0.13Co0.13]O2 cathode material, a candidate for high-performance lithium-ion batteries. Through the sol-gel and hydrothermal synthesis methods, composite structures were achieved by combining the base material with GO and introducing Zn as a dopant. Comprehensive electrochemical assessments, including cyclic voltammetry and electrochemical impedance spectroscopy, were conducted to analyze how these modifications affect charge transfer, capacity, and ionic conductivity. The results revealed that the GO addition enhances conductivity and stability, while Zn doping significantly reduces polarization and improves lithium-ion transport. Together, GO and Zn achieve synergistic effects, resulting in improved cycling stability and higher capacity, underscoring their potential to optimize the performance of Li-rich layered oxide cathodes.
