{"title":"通过梯度分层设计海岛结构增强全有机电介质的储能特性","authors":"Yansen Liu, Hang Zhao, Lei Yin, Jinbo Bai","doi":"10.1007/s00396-024-05240-3","DOIUrl":null,"url":null,"abstract":"<div><p>Polymer dielectrics possessing the superiorities of easy processing and high power density are widely used in pulsed power and power electronics. However, the low energy storage density (<i>U</i><sub><i>e</i></sub>) of polymer dielectrics limits their application in the modern electronic industries. In this work, we present the sea-island structure multilayered composites based on polymethylmethacrylate (PMMA) matrix and polyvinylidene fluoride (PVDF) nanoparticles, which is constructed by the solution blending with typical solubility differences method and the layer-by-layer solution casting method. The PVDF/PMMA composite incorporated with high PVDF content is placed in the middle of the sandwich-structured composite as a non-traditional intermediate polarization layer. The PVDF/PMMA composite with low PVDF loading is placed in the outer layer to improve the insulating property of the composite. The results show that the PVDF/PMMA composites with inner and outer PVDF volume content of 30% and 10%, respectively, obtained an excellent dielectric constant value (<i>ε</i><sub><i>r</i></sub> ~ 4.35), which is 45% higher than that of PMMA (<i>ε</i><sub><i>r</i></sub> ~ 3). Meanwhile, the maximum <i>U</i><sub><i>e</i></sub> (~ 4.95 J cm<sup>−3</sup>) of the PVDF/PMMA composites at an electric field of 422.48 MV m<sup>−1</sup> was obtained, which is 207% higher than that of PMMA (<i>U</i><sub><i>e</i></sub> ~ 1.61 J cm<sup>−3</sup>). The improved energy storage capability could be attributed to the introduction of highly polarizing particles, the increased number of heterogeneous interfaces, and the multilayered construction of composite. This work provides a strategy for the preparation of advanced all-organic dielectrics with a higher discharge energy density.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced energy storage property of all-organic dielectrics by gradient layered design of sea-island structures\",\"authors\":\"Yansen Liu, Hang Zhao, Lei Yin, Jinbo Bai\",\"doi\":\"10.1007/s00396-024-05240-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Polymer dielectrics possessing the superiorities of easy processing and high power density are widely used in pulsed power and power electronics. However, the low energy storage density (<i>U</i><sub><i>e</i></sub>) of polymer dielectrics limits their application in the modern electronic industries. In this work, we present the sea-island structure multilayered composites based on polymethylmethacrylate (PMMA) matrix and polyvinylidene fluoride (PVDF) nanoparticles, which is constructed by the solution blending with typical solubility differences method and the layer-by-layer solution casting method. The PVDF/PMMA composite incorporated with high PVDF content is placed in the middle of the sandwich-structured composite as a non-traditional intermediate polarization layer. The PVDF/PMMA composite with low PVDF loading is placed in the outer layer to improve the insulating property of the composite. The results show that the PVDF/PMMA composites with inner and outer PVDF volume content of 30% and 10%, respectively, obtained an excellent dielectric constant value (<i>ε</i><sub><i>r</i></sub> ~ 4.35), which is 45% higher than that of PMMA (<i>ε</i><sub><i>r</i></sub> ~ 3). Meanwhile, the maximum <i>U</i><sub><i>e</i></sub> (~ 4.95 J cm<sup>−3</sup>) of the PVDF/PMMA composites at an electric field of 422.48 MV m<sup>−1</sup> was obtained, which is 207% higher than that of PMMA (<i>U</i><sub><i>e</i></sub> ~ 1.61 J cm<sup>−3</sup>). The improved energy storage capability could be attributed to the introduction of highly polarizing particles, the increased number of heterogeneous interfaces, and the multilayered construction of composite. This work provides a strategy for the preparation of advanced all-organic dielectrics with a higher discharge energy density.</p></div>\",\"PeriodicalId\":520,\"journal\":{\"name\":\"Colloid and Polymer Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2024-02-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Colloid and Polymer Science\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00396-024-05240-3\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Colloid and Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s00396-024-05240-3","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Enhanced energy storage property of all-organic dielectrics by gradient layered design of sea-island structures
Polymer dielectrics possessing the superiorities of easy processing and high power density are widely used in pulsed power and power electronics. However, the low energy storage density (Ue) of polymer dielectrics limits their application in the modern electronic industries. In this work, we present the sea-island structure multilayered composites based on polymethylmethacrylate (PMMA) matrix and polyvinylidene fluoride (PVDF) nanoparticles, which is constructed by the solution blending with typical solubility differences method and the layer-by-layer solution casting method. The PVDF/PMMA composite incorporated with high PVDF content is placed in the middle of the sandwich-structured composite as a non-traditional intermediate polarization layer. The PVDF/PMMA composite with low PVDF loading is placed in the outer layer to improve the insulating property of the composite. The results show that the PVDF/PMMA composites with inner and outer PVDF volume content of 30% and 10%, respectively, obtained an excellent dielectric constant value (εr ~ 4.35), which is 45% higher than that of PMMA (εr ~ 3). Meanwhile, the maximum Ue (~ 4.95 J cm−3) of the PVDF/PMMA composites at an electric field of 422.48 MV m−1 was obtained, which is 207% higher than that of PMMA (Ue ~ 1.61 J cm−3). The improved energy storage capability could be attributed to the introduction of highly polarizing particles, the increased number of heterogeneous interfaces, and the multilayered construction of composite. This work provides a strategy for the preparation of advanced all-organic dielectrics with a higher discharge energy density.
期刊介绍:
Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.