Enhanced energy storage performance of all-organic sandwich structured dielectrics with FPE and P(VDF-HFP)

被引：44

作者：

Zhang, Wenchao ^{[1
,2
]}

Guan, Feng ^{[1
,2
]}

Jiang, Min ^{[1
,2
]}

Li, Yanpeng ^{[3
]}

Zhu, Congcong ^{[3
]}

Yue, Dong ^{[3
,5
]}

Li, Jialong ^{[4
]}

Liu, Xiaoxu ^{[4
,6
]}

Feng, Yu ^{[2
,5
]}

机构：

[1] Harbin Univ Sci & Technol, Sch Comp Sci & Technol, Harbin 150080, Peoples R China

[2] Harbin Univ Sci & Technol, Sch Elect & Elect Engn, Harbin 150080, Peoples R China

[3] Harbin Univ Sci & Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China

[4] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xi'an 710021, Peoples R China

[5] Harbin Univ Sci & Technol, Harbin 150080, Peoples R China

[6] Shaanxi Univ Sci & Technol, Xi'an 710021, Peoples R China

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2022年 / 159卷

基金：

黑龙江省自然科学基金; 中国国家自然科学基金; 中国博士后科学基金;

关键词：

All-organic; FPE; P(VDF-HFP); Energy storage performance; ULTRAHIGH DISCHARGE EFFICIENCY; POLYMER NANOCOMPOSITES; BREAKDOWN STRENGTH; DENSITY; FILMS;

D O I：

10.1016/j.compositesa.2022.107018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rational design of multilayer structures can greatly improve the breakdown strength and is thus an effective method to improve the energy density of all-organic polymers. In this paper, a simple hot-pressing method was used to combine P(VDF-HFP) with FPE to prepare an all-organic multi-layered composite film with a symmetric structure. The effects of the sandwich structure on the breakdown strength, dielectric properties, and energy storage properties of multilayer materials were investigated in depth. Compared with the single-layer P(VDFHFP), the FPE on both sides of the composite significantly enhanced the breakdown strength and inhibited the dielectric loss. In particular, when the multi-layer structure composite film with intermediate layer P (VDF-HFP) thickness of 6 mu m, the energy storage density and energy storage efficiency reach 11.0 J/cm3 and 86.7%, respectively, realizing double-improvement. This work can provide reliable theoretical analysis and experimental guidance for the preparation of high-performance flexible all-organic dielectrics.

引用

页数：10

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