Giant energy storage of flexible composites by embedding superparaelectric single-crystal membranes

被引：2

作者：

Wang, Tian ^{[1
,2
]}

Shi, Xiaoming ^{[3
]}

Peng, Ruobo ^{[1
,2
]}

Dong, Guohua ^{[1
,2
]}

Liu, Haixia ^{[1
,2
]}

Chen, Bohan ^{[1
,2
]}

Guan, Mengmeng ^{[1
,2
]}

Zhao, Yanan ^{[1
,2
]}

Peng, Bin ^{[1
,2
]}

Zhou, Chao ^{[4
]}

Yang, Sen ^{[4
]}

Qu, Wanbo ^{[5
]}

Zhang, Yang ^{[6
]}

Zhou, Ziyao ^{[1
,2
]}

Ding, Xiangdong ^{[5
]}

Wu, Haijun ^{[5
]}

Huang, Houbing ^{[3
]}

Liu, Ming ^{[1
,2
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect Sci & Engn, Elect Mat Res Lab, Key Lab Minist Educ, Xian 710049, Peoples R China

[2] Xi An Jiao Tong Univ, Int Ctr Dielect Res, Sch Elect Sci & Engn, State Key Lab Mfg Syst Engn, Xian 710049, Peoples R China

[3] Beijing Inst Technol, Adv Res Inst Multidisciplinary Sci, Beijing 100081, Peoples R China

[4] Xi An Jiao Tong Univ, Sch Phys, MOE Key Lab Nonequilibrium Synth & Modulat Condens, Xian 710049, Peoples R China

[5] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[6] Xi An Jiao Tong Univ, Instrumental Anal Ctr, Xian 710049, Peoples R China

来源：

NANO ENERGY | 2023年 / 113卷

关键词：

Flexible; Superparaelectric; Single crystals; Energy storage; Composites; DENSITY; POLYMER; EFFICIENCY; FILMS; PERFORMANCE; DIELECTRICS;

D O I：

10.1016/j.nanoen.2023.108511

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Flexible organic-based composites embedding nanosheet-like inorganics with high energy storage density (U) are imperatively demanded for applications in portable electronics and sensors. However, the breakdown phases can easily bypass the discontinuous nanosheets, leading to the failure of conduction barriers. Here, continuous flexible Sm-doped BiFeO3-BaTiO3 (Sm-BFBT) membranes with superparaelectric characteristics were synthetized via etching a water-soluble Sr3Al2O6 buffer layer. With the single-crystal Sm-BFBT membranes embedded into poly(vinylidene fluoride), a giant U of 46.4 J/cm(3) at 770 MV/m is achieved in the sandwich-structured composites, attributed to a formation of depolarized field induced by interfacial ions. Meanwhile, the composites exhibit a stable U of similar to 20 J/cm(3) at 550 MV/m during bending process, owing to the excellent flexibility of Sm-BFBT membranes originating from nanodomain switching. The proposed composites containing flexible 2D inorganic membranes offer unprecedented structural insights into the integration of high energy storage and stability of bending, and suggest potential uses in flexible energy storage devices.

引用

页数：9

共 51 条

[51] Excellent energy storage performance and thermal property of polymer-based composite induced by multifunctional one-dimensional nanofibers oriented in-plane direction [J].

Zhang, Yue ;

Zhang, Changhai ;

Feng, Yu ;

Zhang, Tiandong ;

Chen, Qingguo ;

Chi, Qingguo ;

Liu, Lizhu ;

Li, Guofeng ;

Cui, Yang ;

Wang, Xuan ;

Dang, Zhimin ;

Lei, Qingquan .

NANO ENERGY, 2019, 56 :138-150

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