Fabrication and Analysis of BaTiO3-Nb2O5 Ceramics for Advanced Energy Storage Applications

Abstract

As the demand for high-performance energy storage systems surges, dielectric materials have emerged as frontrunners due to their exceptional power density. Yet, their relatively low energy density has long been a bottleneck for practical deployment. This study breaks new ground by addressing this limitation, focusing on the enhancement of Barium Titanate-based ceramics for energy storage through the strategic incorporation of Niobium Oxide (Nb₂O₅). By investigating the effects of Nb₂O₅ on 0.98BT-0.02BMC ceramics, we unlock unprecedented improvements in both dielectric and energy storage properties. X-ray diffraction (XRD) analysis reveals the stability of a single perovskite phase across all compositions, paving the way for reliable performance. Most strikingly, the x = 4 composition delivers a groundbreaking dielectric constant (~2200) alongside a remarkable energy density of 1.40 J/cm³ and a recoverable energy density of 1.10 J/cm³, achieving an efficiency of 78.8%. These extraordinary results propel the material to the forefront of next-generation energy storage technologies, making it a powerhouse for high-demand applications such as power pulse systems. With its unparalleled combination of high energy density, exceptional efficiency, and long-term stability, this material holds the promise to redefine energy storage solutions, setting new benchmarks in both performance and reliability.