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3. Structural and electrochemical characterization of LiMn2O4 and Li1.05Mn1.97Nb0.03O4 with excellent high-temperature cycling stability synthesized by a simple route

Author

Wang Kangli, Genyang Xu, Pan Kaimeng, Dong Zhang, Yu Lihong, Chen Hu, Kai Jiang, and Sun Zhaoqin

Subjects
Materials science, General Chemical Engineering, Specific discharge, Doping, Sintering, 02 engineering and technology, Carbon black, Temperature cycling, Raw material, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrochemistry, 01 natural sciences, 0104 chemical sciences, Characterization (materials science), Chemical engineering, Materials Chemistry, 0210 nano-technology
Abstract

A simple method was applied to control the morphology of LiMn2O4 and Li1.05Mn1.97Nb0.03O4 in the sintering process by premixing a suitable proportion of acetylene black in the raw material. Both specific discharge capacity and cycling stability of the samples were improved. The results demonstrated that the doped samples showed excellent electrochemical performance at both 25 °C and 55 °C.

Published
2020

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