Tailored HoFeO3–Ho2O3 hybrid perovskite nanocomposites as stable anode material for advanced lithium‐ion storage

Summary In this study, a novel hybrid HoFeO3–Ho2O3 nanocomposite perovskite composite is synthesized via a simple coprecipitation method as a stable, high‐capacity anode material for lithium‐ion batteries. The structure and morphology of the material are characterized using advanced tools such as X‐ray diffraction, scanning electron microscopy, and transmission electron microscopy, all of which confirm the successful synthesis of nanocrystals with highly interconnected porous nanohallows. At 0.1 A g−1, the HoFeO3–Ho2O3 nanocomposite electrodes exhibit a stable reversible capacity of 787 mAh g−1 with a coulombic efficiency exceeding 99.5%. This capacity is nine times higher than that of Ho2O3 and 50% higher than that of Fe2O3 balance samples. This study provides new insights into the use of perovskite‐structured materials with superior electrochemical performance for advanced lithium‐ion storage. Nanoscale materials with uniquely desired morphology and structural stability are critical for realizing high capacity and long lifetimes for energy storage applications. In this study, a novel HoFeO3–Ho2O3 hybrid perovskite nanocomposite material is introduced as anode material for lithium‐ion storage. The HoFeO3–Ho2O3 nanocomposite material, featured with highly porous hollow nanostructures, was synthesized via a simple and scalable coprecipitation method, and excellent electrochemical performances were obtained.