Asymmetric Trilayer All-Polymer Dielectric Composites with Simultaneous High Efficiency and High Energy Density: A Novel Design Targeting for Advanced Energy Storage Capacitors

Sun, Liang1; Shi, Zhicheng1; He, Benlin1; Wang, Huanlei1; Liu, Shuai1; Huang, Minghua1; Shi, Jing1; Dastan, Davoud2; Wang, Hong3

2021-06-01

10.1002/adfm.202100280

ADVANCED FUNCTIONAL MATERIALS   影响因子和分区

1616-301X

1616-3028

Polymeric dielectrics have attracted intensive attention worldwide because of their huge potential for advanced energy storage capacitors. Thus far, various effective strategies have been developed to improve the inherent low energy densities of polymer dielectrics. However, enhanced energy density is always accompanied by suppressed discharge efficiency, which is detrimental to practical applications and deserves considerable concern. Targeting at achieving simultaneous high energy density and high discharge efficiency, the unique design of asymmetric all-polymer trilayer composite consisting of a transition layer sandwiched by a linear dielectric layer and a nonlinear dielectric layer is herein reported. It is demonstrated that the nonlinear dielectric layer offers high energy density, while the linear dielectric layer provides high discharge efficiency. Especially, the transition layer can effectively homogenize the electric field distribution, resulting in greatly elevated breakdown strength and improved energy density. In particular, a high efficiency of 89.9% along with a high energy density of 12.15 J cm(-3) are concurrently obtained. The asymmetric trilayer all-polymer design strategy represents a new way to achieve high-performance dielectric energy storage materials.

all-polymer composites asymmetric structures dielectric properties energy storage film capacitors

SCI ; EI

英语

NI论文 ; ESI高被引

其他

National Natural Science Foundation of China[51773187] ; Fundamental Research Funds for the Central Universities[201961060]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000664428700001

WILEY-V C H VERLAG GMBH

20212610545916

Dielectric devices ; Electric fields ; Energy storage ; Polymers ; Storage (materials)

Energy Storage:525.7 ; Storage:694.4 ; Electricity: Basic Concepts and Phenomena:701.1 ; Dielectric Materials:708.1 ; Polymeric Materials:815.1

MATERIALS SCIENCE

Web of Science

1.Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266100, Peoples R China
2.Georgia Inst Technol, Dept Mat Sci & Engn, Atlanta, GA 30332 USA
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Sun, Liang,Shi, Zhicheng,He, Benlin,et al. Asymmetric Trilayer All-Polymer Dielectric Composites with Simultaneous High Efficiency and High Energy Density: A Novel Design Targeting for Advanced Energy Storage Capacitors[J]. ADVANCED FUNCTIONAL MATERIALS,2021,31.

Sun, Liang.,Shi, Zhicheng.,He, Benlin.,Wang, Huanlei.,Liu, Shuai.,...&Wang, Hong.(2021).Asymmetric Trilayer All-Polymer Dielectric Composites with Simultaneous High Efficiency and High Energy Density: A Novel Design Targeting for Advanced Energy Storage Capacitors.ADVANCED FUNCTIONAL MATERIALS,31.

Sun, Liang,et al."Asymmetric Trilayer All-Polymer Dielectric Composites with Simultaneous High Efficiency and High Energy Density: A Novel Design Targeting for Advanced Energy Storage Capacitors".ADVANCED FUNCTIONAL MATERIALS 31(2021).