Ultrahigh Energy Storage Density and High Efficiency in Lead-Free (Bi<sub>0.9</sub>Na<sub>0.1</sub>)(Fe<sub>0.8</sub>Ti<sub>0.2</sub>)O<sub>3</sub>-Modified NaNbO<sub>3</sub> Ceramics via Stabilizing the Antiferroelectric Phase and Enhancing Relaxor Behavior
Jia‐Jun Ma, Donghai Zhang, Ying Fei, Xiongjie Li, Ling Li, Shun Guo, Yu Huan, Ji Zhang, Jing Wang, Shan‐Tao Zhang
Abstract
, and a high efficiency η of 82.5%, as well as excellent thermal reliability and an ultrafast discharge speed, resulting from the dense microstructure, the moderate dielectric constant, the reduced grain size, the dielectric loss, and the sample thickness. The outstanding energy storage properties of NN-BNFT display great promise in advanced dielectric capacitors for energy storage applications.
Topics & Concepts
Materials scienceDielectricCapacitorCeramicMicrostructureEnergy storagePulsed powerGrain sizePerovskite (structure)Ceramic capacitorOptoelectronicsEngineering physicsComposite materialPower (physics)VoltageElectrical engineeringChemical engineeringThermodynamicsEngineeringPhysicsFerroelectric and Piezoelectric MaterialsMultiferroics and related materialsDielectric materials and actuators