Yao Su, Zhiyong Liao, Xin Yang, Yongbo Fan, Dengwei Hu, Weijia Wang, Huiqing Fan
{"title":"Hydrogen Bond-Mediated Polar Structure Engineering of PVDF toward Superior Energy Storage","authors":"Yao Su, Zhiyong Liao, Xin Yang, Yongbo Fan, Dengwei Hu, Weijia Wang, Huiqing Fan","doi":"10.1039/d5ta05107j","DOIUrl":null,"url":null,"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.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"32 1","pages":""},"PeriodicalIF":9.5000,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d5ta05107j","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
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.
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.