In this study, LiNi_1/3Co_1/3Mn_1/3O₂/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 LiNi_1/3Co_1/3Mn_1/3O₂ (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.

本研究采用溶胶-凝胶法成功合成了LiNi _1/3 Co _1/3 Mn _1/3 O ₂ /Li ₂ FeSiO ₄ /C复合材料，通过掺入柠檬酸碳化衍生的碳来改善其固有的性能。电子传导不良。物质空间群为R-3m，不包括任何其他杂质峰。能量色散 X 射线光谱 (EDS)、透射电子显微镜 (TEM) 和 X 射线光电子能谱 (XPS) 证实成功形成了包含 C、Li ₂ FeSiO ₄ (LFS) 和 LiNi _{1/的复合材料3}钴_1/3锰_1/3O ₂ (LNCMO)。LNCMO-3 复合材料的初始比放电容量为 156.4 mAh/g。LNCMO 循环 100 次后的容量保持率为 43.48%，而 LNCMO-3 为 44.88%。LFS/C 层优异的导电性和化学稳定性通过改善电子和离子转移并防止电解质的侵蚀来增强电化学性能。