Near‐Zero Energy Consumption Capacitors by Controlling Inhomogeneous Polarization Configuration
Source abstract
Abstract
Abstract Taking into account the need for energy conservation, achieving near‐zero energy loss, namely ultrahigh efficiency (η), in energy storage capacitors with large recoverable energy storage density (Wrec) plays an important role in applications, which is one of the major challenges in dielectric energy storage field. Here, guided by phase‐field simulation, inhomogeneous polarization configuration with multiple symmetries and polarization magnitudes is controlled through aliovalent strongly polar double ion design to establish a strongly disordered state. A record‐high η of ≈97.4% is realized in lead‐free relaxors with a large Wrec of ≈8.6 J cm−3, which also give a giant Wrec of ≈11.6 J cm−3 with an ultrahigh η of ≈96.1% through high‐energy ball milling, showing a breakthrough progress in ceramic capacitors with a maximum figure of merit of 330. This work demonstrates that controlling inhomogeneous polarization configuration is an effective avenue to develop new high‐performance near‐zero energy loss energy storage capacitors.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Beijing Advanced Innovation Center for Materials Genome Engineering Department of Physical Chemistry University of Science and Technology Beijing Beijing 100083 China
State Key Laboratory of High Performance Ceramics and Superfine Microstructures and Key Laboratory of Inorganic Functional Materials and Devices Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China
School of Mathematics and Physics University of Science and Technology Beijing Beijing 100083 China
Hainan University Haikou Hainan Province 570228 China
Funding
National Natural Science Foundation of China · China Postdoctoral Science Foundation · National Postdoctoral Program for Innovative Talents · Fundamental Research Funds for the Central Universities · National Key Research and Development Program of China
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