Synergistic Relaxor Engineering and Microstructural Densification Enable Ultrahigh Energy Storage in BNT-Based Lead-Free Ceramics.
Lead-free dielectric ceramics with simultaneously high recoverable energy-storage density and efficiency are highly desirable for pulsed-power capacitors, yet their performance is fundamentally limited by the trade-off among polarization strength, hysteresis loss, and breakdown strength. Here, we report a multiscale sy...