BNLBCS High-Entropy Ceramic

High Efficiency at Low Field

A BNT-based high-entropy perovskite dielectric ceramic with A-site distortion that induces relaxor ferroelectric behavior for high energy-storage efficiency at low electric fields.

Ma, Cuiying · Furong, Shang · Xueying, Xie · Puyu, Yang · Zhao, Xing · Bai, Yuhang · Du, Huiling · Liu, Jia

Journal of Alloys and Compounds 2026

Specifications

Recoverable energy density

{'zh': '1.9', 'en': '1.9'} J/cm³

Energy-storage efficiency

{'zh': '89.75', 'en': '89.75'} %

Advantages

Works at low field

Achieves high energy-storage performance at a low electric field of 190 kV/cm, reducing the need for high-voltage equipment.

Relaxor behavior

Lattice distortions in HEPOs disrupt the long-range ferroelectric order, leading to relaxor characteristics with polar nanoregions.

High efficiency

The energy-storage efficiency reaches 89.75%, meaning most of the stored energy can be recovered.

Applications

• Energy-storage capacitors：For dielectric capacitors that store energy efficiently at low voltage.
• Dielectric ceramics：As dielectric ceramics, exploiting relaxor behavior for high energy storage.
• Pulsed power systems：For pulsed power systems requiring high energy density at low fields.