Li Da, Liu Zhaobo, Zhao Weichen, Guo Yan, Wang Zhentao, Xu Diming, Huang Houbing, Pang Li-Xia, Zhou Tao, Liu Wen-Feng, Zhou Di
Electronic Materials Research Laboratory & Multifunctional Materials and Structures, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
School of Materials Science and Engineering & Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing, China.
Nat Commun. 2025 Jan 2;16(1):188. doi: 10.1038/s41467-024-55491-5.
Multilayer ceramic capacitor as a vital core-component for various applications is always in the spotlight. Next-generation electrical and electronic systems elaborate further requirements of multilayer ceramic capacitors in terms of higher energy storage capabilities, better stabilities, environmental-friendly lead-free, etc., where these major obstacles may restrict each other. An effective strategy for energy storage performance global optimization is put up here by constructing local polymorphic polarization configuration integrated with prototype device manufacturing. A large energy density of 20.0 J·cm along with a high efficiency of 86.5%, and remarkable high-temperature stability, are achieved in lead-free multilayer ceramic capacitors. The strategy provides a feasible routine from nano, micro to macro regions in manipulating local polarizations, domain-switching barriers and breakdown strength, illustrating its great potential to be generally applicable in the design of high-performance energy storage multilayer ceramic capacitors.
多层陶瓷电容器作为各种应用中的关键核心部件一直备受关注。下一代电气和电子系统对多层陶瓷电容器在更高储能能力、更好稳定性、环保无铅等方面提出了进一步要求，而这些主要障碍可能相互制约。本文提出了一种通过构建与原型器件制造相结合的局部多晶型极化构型来实现储能性能全局优化的有效策略。在无铅多层陶瓷电容器中实现了20.0 J·cm的高能量密度、86.5%的高效率以及显著的高温稳定性。该策略为从纳米、微米到宏观区域操纵局部极化、畴切换势垒和击穿强度提供了一条可行的途径，显示出其在高性能储能多层陶瓷电容器设计中普遍应用的巨大潜力。
