Hydrogen Bond-Mediated Polar Structure Engineering of PVDF toward Superior Energy Storage

IF 9.5 2区 材料科学 Q1 CHEMISTRY, PHYSICAL
Yao Su, Zhiyong Liao, Xin Yang, Yongbo Fan, Dengwei Hu, Weijia Wang, Huiqing Fan
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引用次数: 0

Abstract

Dielectric capacitors have emerged as a pivotal class of energy storage devices in modern electronics. A major challenge is the low volumetric energy density hinders further development. To address this challenge, all-organic film has gained attention as a promising and scalable alternative. Here we developed an all-organic xylitol-PVDF film, which maximizes energy density by constructing a hydrogen bond network between PVDF and xylitol. The network enhances the crystallinity of PVDF, reduces the grain size of the α phase, β phase and γ phase, and increases the β phase content. The xylitol-PVDF composite film containing 5 wt% xylitol demonstrates a remarkable energy density of 23.64 J cm-3 and an impressive charge-discharged efficiency of 84.2%. A facile and scalable approach for fabricating high-performance PVDF-based dielectric film in this work, demonstrating exceptional energy storage performance.
面向高性能储能的氢键介导PVDF极性结构工程
在现代电子学中,介电电容器已成为一种关键的能量存储装置。一个主要的挑战是低体积能量密度阻碍了进一步的发展。为了解决这一挑战,全有机薄膜作为一种有前途和可扩展的替代品受到了关注。在此,我们开发了一种全有机木糖醇-PVDF薄膜,通过在PVDF和木糖醇之间构建氢键网络,使能量密度最大化。该网络增强了PVDF的结晶度,减小了α相、β相和γ相的晶粒尺寸,增加了β相的含量。木糖醇- pvdf复合膜的能量密度为23.64 J cm-3,充放电效率为84.2%。在这项工作中,一种简便且可扩展的方法用于制造高性能pvdf基介电膜,展示了卓越的储能性能。
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来源期刊
Journal of Materials Chemistry A
Journal of Materials Chemistry A CHEMISTRY, PHYSICAL-ENERGY & FUELS
CiteScore
19.50
自引率
5.00%
发文量
1892
审稿时长
1.5 months
期刊介绍: The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.
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