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

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.