Development of high performance cathode materials, layer-structured ternary LiNi_xCo_yM_1−x−yO₂ cathode materials have attracted much attention owing to their larger capacity and higher energy density. Persistent efforts have been devoted to tackling certain issues like low electronic conductivity and poor structural stability. Dual strategy of Mg doping and surface modification of the cathode material was adopted to improve the performance of the battery. Fullerene–Multi-Walled Carbon Nanotube (MWCNT) hybrid draped LiNi_0.1Mg_0.1Co_0.8O₂ nanocomposite was synthesized by a simple chemical route. The fullerene–MWCNT hybrid modifies the surface of pristine LiNi_0.1Mg_0.1Co_0.8O₂ thereby improves the electrochemical performance and maintains the structural stability of the cathode material. Pristine LiNi_0.1Mg_0.1Co_0.8O₂ and LiNi_0.1Mg_0.1Co_0.8O₂/fullerene–MWCNT nanocomposite were studied using various advanced characterization techniques such as X-ray diffraction (XRD), Micro-Raman spectroscopy, Field Emission Scanning Electron Microscopy (FESEM), X-ray Photoelectron Spectroscopy (XPS), and High-Resolution Transmission Electron Microscopy (HRTEM). It is found that LiNi_0.1Mg_0.1Co_0.8O₂ particles retain their structural integrity after being enveloped with a fullerene–MWCNT hybrid. The electrochemical performance was investigated with cyclic voltammetry (CV), galvanostatic charge–discharge (GCD) test and electrochemical impedance spectroscopy (EIS). As prepared LiNi_0.1Mg_0.1Co_0.8O₂, when deployed in the form of LiNi_0.1Mg_0.1Co_0.8O₂/fullerene–MWCNT composite exhibits a high specific capacity of 208 mAh g⁻¹. Fullerene–MWCNT hybrid draped LiNi_0.1Mg_0.1Co_0.8O₂ nanocomposite provides an effective Li⁺ and electron channel that significantly increased the Li-ion diffusion coefficient and reduced the charge transfer resistance. Besides,the lithium diffusion coefficient increased from 5.13 × 10^–13 (Li/LiNi_0.1Mg_0.1Co_0.8O₂) to 8.313 × 10^–13 cm² s⁻¹ due to the improved kinetics of Li insertion/extraction process in Li/LiNi_0.1Mg_0.1Co_0.8O₂ + fullerene–MWCNT cell.

高性能正极材料的开发，层状结构的三元LiNi _x Co _y M _1-x-y O ₂正极材料因其更大的容量和更高的能量密度而备受关注。一直致力于解决某些问题，例如低电子电导率和较差的结构稳定性。采用Mg掺杂和正极材料表面改性的双重策略来提高电池的性能。富勒烯-多壁碳纳米管 (MWCNT) 混合覆盖 LiNi _0.1 Mg _0.1 Co _0.8 O ₂纳米复合材料是通过简单的化学途径合成的。富勒烯-多壁碳纳米管杂化物修饰了原始LiNi _0.1 Mg _0.1 Co _0.8 O ₂的表面，从而提高了电化学性能并保持了正极材料的结构稳定性。原始 LiNi _0.1 Mg _0.1 Co _0.8 O ₂和 LiNi _0.1 Mg _0.1 Co _0.8 O ₂使用各种先进的表征技术，如 X 射线衍射 (XRD)、显微拉曼光谱、场发射扫描电子显微镜 (FESEM)、X 射线光电子能谱 (XPS) 和高分辨率透射，研究了富勒烯-MWCNT 纳米复合材料电子显微镜（HRTEM）。结果表明，LiNi _0.1 Mg _0.1 Co _0.8 O ₂颗粒在被富勒烯-MWCNT 杂化物包裹后仍保持其结构完整性。电化学性能通过循环伏安法 (CV)、恒电流充放电 (GCD) 测试和电化学阻抗谱 (EIS) 进行研究。制备的 LiNi _0.1 Mg _0.1 Co _0.8 O ₂，当以LiNi _0.1 Mg _0.1 Co _0.8 O ₂ /富勒烯-MWCNT复合材料的形式部署时，表现出208 mAh g ^-1的高比容量。富勒烯-多壁碳纳米管杂化覆盖的 LiNi _0.1 Mg _0.1 Co _0.8 O ₂纳米复合材料提供了有效的 Li ⁺和电子通道，显着增加了锂离子扩散系数并降低了电荷转移电阻。此外，锂扩散系数从 5.13 × 10 ^–13 (Li/LiNi _0.1 Mg _0.1 Co _0.8 O ₂ ) 增加到 8.313 × 10^–13 cm ²  s ^-1由于在 Li/LiNi _0.1 Mg _0.1 Co _0.8 O ₂  + 富勒烯-MWCNT 电池中锂嵌入/脱嵌过程的动力学得到改善。