Zhao Weichen, Liu Zhaobo, Xu Diming, Wang Ge, Li Da, Liu Jinnan, Wang Zhentao, Guo Yan, Ren Jiajia, Zhou Tao, Pang Lixia, Yang Hongwei, Liu Wenfeng, Huang Houbin, 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 Jul 16;16(1):6549. doi: 10.1038/s41467-025-61936-2.
Multilayer ceramic capacitors are cornerstone components of modern electronic systems. Yet ensuring reliability under demanding operational conditions, such as elevated temperatures and prolonged cycling, while achieving holistic optimization of recoverable energy density and efficiency remains a significant challenge. Herein, we implement a polar glass state strategy that catalyzes a profound enhancement in energy storage performance by modulating dynamic and thermodynamic processes. This approach minimizes hysteresis loss and improves breakdown strength through hierarchical structural engineering, disrupting nano-domains and refining grains. An ultra-high recoverable energy density of 22.92 J cm and exceptional efficiency of 97.1%, accompanied with state-of-the-art high-temperature stability are achieved in BiNaTiO-based multilayer ceramic capacitors. This strategy promises to be a transformative blueprint for developing cutting-edge dielectric capacitors for high-temperature applications.
多层陶瓷电容器是现代电子系统的基石组件。然而，在诸如高温和长时间循环等苛刻的运行条件下确保可靠性，同时实现可回收能量密度和效率的整体优化，仍然是一项重大挑战。在此，我们实施了一种极性玻璃态策略，通过调节动力学和热力学过程，催化储能性能的显著提升。这种方法通过分级结构工程最小化滞后损耗并提高击穿强度，破坏纳米域并细化晶粒。在基于BiNaTiO的多层陶瓷电容器中实现了22.92 J/cm的超高可回收能量密度、97.1%的卓越效率以及一流的高温稳定性。该策略有望成为开发用于高温应用的前沿介电电容器的变革性蓝图。
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