High-Entropy Chemical Composition Design for Ultrahigh Capacitive Energy Storage.

ABSTRACT: Superior energy-storage performance is imperative for next-generation electronics and pulsed power systems. However, in lead-free dielectric ceramics, achieving synergistic optimization of energy storage performance remains a critical challenge. The central obstacle lies in the simultaneous enhancement of both energy density (W_rec) and efficiency (η). Herein, a high-entropy lead-free Bi_0.32Na_0.32Ba_0.32La_0.04TiO₃-NaNbO₃ ceramics system is designed, guided by phase-field simulations and a strategic chemical composition approach. The synergistic effect of La-donor doping and NaNbO₃ addition induces local random fields and local random stresses, stabilizing multiphase ultrasmall polar nanoregions. Benefitin

SUBMITTER: Habib M 

PROVIDER: S-EPMC12904035 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature