Journal ArticleDOI
Ultrahigh energy storage in superparaelectric relaxor ferroelectrics
Hao Pan,Shun Lan,Shiqi Xu,Qinghua Zhang,Hongbao Yao,Yi-Qian Liu,Fanqi Meng,Er-Jia Guo,Lin Gu,Di Yi,Xiao Renshaw Wang,Houbing Huang,Judith L. MacManus-Driscoll,Long Qing Chen,Kui Juan Jin,Ce-Wen Nan,Yuanhua Lin +16 more
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TLDR
In this paper, relaxor ferroelectrics characterized by nanodomains are used for energy storage in advanced electronics and high power electrical systems, and they are shown to be fundamental to advanced electronics.Abstract:
Electrostatic energy storage technology based on dielectrics is fundamental to advanced electronics and high-power electrical systems. Recently, relaxor ferroelectrics characterized by nanodomains ...read more
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Giant energy-storage density with ultrahigh efficiency in lead-free relaxors via high-entropy design
TL;DR: In this article , the authors proposed a high-entropy strategy to design local polymorphic distortion including rhombohedral-orthorhombic-tetragonal-cubic multiphase nanoclusters and random oxygen octahedral tilt, resulting in ultrasmall polar nanoregions, an enhanced breakdown electric field, and delayed polarization saturation.
Journal ArticleDOI
High-entropy enhanced capacitive energy storage
Bingbing Yang,Yang Zhang,Hao Pan,Wenlong Si,Qinghua Zhang,Zhonghui Shen,Yong Yu,Shun Lan,Fanqi Meng,Yiqian Liu,Houbing Huang,Jiaqing He,Lin Gu,Shujun Zhang,Long Qing Chen,Jing Zhu,Ce-Wen Nan,Yuanhua Lin +17 more
Journal ArticleDOI
Composition and Structure Optimized BiFeO3 -SrTiO3 Lead-Free Ceramics with Ultrahigh Energy Storage Performance.
Fei Yan,Hairui Bai,Guang Tao Ge,Jinfeng Lin,Cheng Shi,Kun Zhu,Bo Shen,Jiwei Zhai,Shujun Zhang +8 more
TL;DR: Both energy density and efficiency exhibit excellent stability over the frequency range of 1-100 Hz and temperatures up to 120 °C, along with the superior power density of 280 MW cm-3, making the studied BiFeO3 -SrTiO3 ceramics potentially useful for high-power energy storage applications.
Journal ArticleDOI
Superior energy storage performance in (Bi0.5Na0.5)TiO3-based lead-free relaxor ferroelectrics for dielectric capacitor application via multiscale optimization design
Chongyang Li,Jikang Liu,Wangfeng Bai,Shiting Wu,Peng Zheng,Jing Zhang,Zhongbin Pan,Jiwei Zhai +7 more
TL;DR: In this article , a lead-free dielectric ceramics with ultrahigh energy storage performance was developed for next-generation high-power capacitors, achieving a record-breaking energy efficiency of 97.8% .
Journal ArticleDOI
Supercritical Relaxor Nanograined Ferroelectrics for Ultrahigh‐Energy‐Storage Capacitors
Aiwen Xie,Jian-Qiang Fu,Ruzhong Zuo,Xuewen Jiang,Tianyu Li,Zhengqian Fu,Yu Shizhuo Yin,Xiaoguang Li,Shujun Zhang +8 more
TL;DR: In this paper , a supercritical relaxor nanograined ferroelectrics are demonstrated for high-performance dielectric capacitors, showing record-high overall properties of energy density ≈13.1 J cm−3 and field-insensitive efficiency ≈90% at ≈74 kV mm−1 and superior charge-discharge performances of high power density and high discharge energy density.
References
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Journal ArticleDOI
A Dielectric Polymer with High Electric Energy Density and Fast Discharge Speed
TL;DR: It is demonstrated that a very high energy density with fast discharge speed and low loss can be obtained in defect-modified poly(vinylidene fluoride) polymers by combining nonpolar and polar molecular structural changes of the polymer with the proper dielectric constants.
Journal ArticleDOI
Flexible high-temperature dielectric materials from polymer nanocomposites
Qi Li,Lei Chen,Matthew R. Gadinski,Shihai Zhang,Guangzu Zhang,Haoyu U. Li,Aman Haque,Long Qing Chen,Thomas N. Jackson,Qing Wang +9 more
TL;DR: Crosslinked polymer nanocomposites that contain boron nitride nanosheets have outstanding high-voltage capacitive energy storage capabilities at record temperatures and have been demonstrated to preserve excellent dielectric and capacitive performance after intensive bending cycles, enabling broader applications of organic materials in high-temperature electronics and energy storage devices.
Journal ArticleDOI
Perovskite lead-free dielectrics for energy storage applications
TL;DR: In this paper, the authors summarize the principles of dielectric energy-storage applications, and recent developments on different types of Dielectrics, namely linear dielectrics (LDE), paraelectric, ferroelectrics, and antiferro electrics, focusing on perovskite lead-free dielectors.
Journal ArticleDOI
Applications of semi-implicit Fourier-spectral method to phase field equations
Long Qing Chen,Jie Shen +1 more
TL;DR: In this paper, an efficient and accurate numerical method is implemented for solving the time-dependent Ginzburg-Landau equation and the Cahn-Hilliard equation, where the time variable is discretized by using semi-implicit schemes which allow much larger time step sizes than explicit schemes; the space variables are discretised by using a Fourier-spectral method whose convergence rate is exponential in contrast to second order by a usual finite-difference method.
Journal ArticleDOI
Lead-Free Relaxor Ferroelectrics
TL;DR: In this paper, the authors outline how lead-free relaxors can offer a route to an environmentally safer option in this outstanding material class and discuss properties of uniaxial, planar, and volumetric relaxor compositions.