High-entropy engineered BaTiO3-based ceramic capacitors with greatly enhanced high-temperature energy storage performance
State Key Laboratory of New Ceramics and Fine Processing · Tsinghua University · +4 more institutions
Abstract
Ceramic capacitors with ultrahigh power density are crucial in modern electrical applications, especially under high-temperature conditions. However, the relatively low energy density limits their application scope and hinders device miniaturization and integration. In this work, we present a high-entropy BaTiO3-based relaxor ceramic with outstanding energy storage properties, achieving a substantial recoverable energy density of 10.9 J/cm3 and a superior energy efficiency of 93% at applied electric field of 720 kV/cm. Of particular importance is that the studied high-entropy composition exhibits excellent energy storage performance across a wide temperature range of −50 to 260 °C, with variation below 9%,…
Citation impact
- FWCI
- 37.32
- Percentile
- 100%
- References
- 60
Authors
10- XKXi KongCorresponding
State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University
- LYLetao Yang
Beijing Institute of Technology, State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University
- FMFanqi Meng
State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University
- TZTao Zhang
Hubei University
- HZHejin Zhang
Hubei University
Topics & keywords
- Capacitor
- Energy storage
- Materials science
- Ceramic
- Ceramic capacitor
- Nanotechnology
- Composite material
- Electrical engineering
- Affordable and clean energy