首页|Preparation and electrochemical performance of LiNi1/3Co1/3Mn1/3O2/Li2FeSiO4/C composites for lithium-ion batteries
Preparation and electrochemical performance of LiNi1/3Co1/3Mn1/3O2/Li2FeSiO4/C composites for lithium-ion batteries
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NSTL
Elsevier
? 2022 Elsevier B.V.In this study, LiNi1/3Co1/3Mn1/3O2/Li2FeSiO4/C composite materials were successfully synthesized using the sol-gel method by incorporating carbon derived from the carbonization of citric acid to improve the inherently poor electronic conduction. The material space group was R-3 m, and it did not include any other heterotic peaks. Energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) confirmed the successful formation of a composite material comprising C, Li2FeSiO4 (LFS), and LiNi1/3Co1/3Mn1/3O2 (LNCMO). The initial specific discharge capacity of the LNCMO? 3 composite was 156.4 mAh/g. The capacity retention of LNCMO after 100 cycles was 43.48%, whereas that of LNCMO? 3 was 44.88%. The superior conductivity and chemical stability of the LFS/C layer enhanced the electrochemical performance by improving electron and ion transfer and preventing the attack of electrolytes.
Key Laboratory of Resource Chemistry and Eco-environmental Protection in Tibetan Plateau of State Ethnic Affairs Commission Qinghai Provincial Key Laboratory of Nanomaterials and Nanotechnology School of Chemistry and Chemical Engineering Qinghai Minzu Un
NSTL
Elsevier
