Improved High-Temperature Energy Storage Performance of Mass Production-Polypropylene Capacitive Films by Optimizing the Casting Temperatures

IF 2.7 3区化学 Q2 POLYMER SCIENCE

Journal of Applied Polymer Science Pub Date : 2025-02-18 DOI:10.1002/app.56864

Guoheng Liu, Tianqi Wang, Tiandong Zhang, Chao Yin, Yue Zhang, Yongquan Zhang, Changhai Zhang, Qingguo Chi

{"title":"Improved High-Temperature Energy Storage Performance of Mass Production-Polypropylene Capacitive Films by Optimizing the Casting Temperatures","authors":"Guoheng Liu, Tianqi Wang, Tiandong Zhang, Chao Yin, Yue Zhang, Yongquan Zhang, Changhai Zhang, Qingguo Chi","doi":"10.1002/app.56864","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Polypropylene (PP) are the most widely used dielectric materials for film capacitor due to the ultra-low dielectric loss and high breakdown strength. However, PP films are not allowed to operate exceed 105°C due to the markedly increase in conduction loss at elevated temperature. This study proposes an efficient strategy to enhance the high-temperature capacitive properties of PP films by regulating the casting temperatures during the melt-extrusion-casting process. The results show that the casting temperature has a deep influence on the surface morphology and crystal structures, which also affects the electrical performance especially the dielectric property at high temperature. The PP films prepared under an extrusion temperature of 210°C and the tape casting temperature of 140°C deliver the optimal energy storage property, a discharge energy density of 1.93 J cm<sup>−3</sup> and an energy storage efficiency of 81% at 125°C, accompanying excellent cycle performance.</p>\n </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 19","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/app.56864","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

Polypropylene (PP) are the most widely used dielectric materials for film capacitor due to the ultra-low dielectric loss and high breakdown strength. However, PP films are not allowed to operate exceed 105°C due to the markedly increase in conduction loss at elevated temperature. This study proposes an efficient strategy to enhance the high-temperature capacitive properties of PP films by regulating the casting temperatures during the melt-extrusion-casting process. The results show that the casting temperature has a deep influence on the surface morphology and crystal structures, which also affects the electrical performance especially the dielectric property at high temperature. The PP films prepared under an extrusion temperature of 210°C and the tape casting temperature of 140°C deliver the optimal energy storage property, a discharge energy density of 1.93 J cm⁻³ and an energy storage efficiency of 81% at 125°C, accompanying excellent cycle performance.

Abstract Image

查看原文本刊更多论文

通过优化浇注温度提高量产聚丙烯电容膜的高温储能性能

聚丙烯具有介损极低、击穿强度高的优点，是薄膜电容器中应用最广泛的介质材料。然而，PP薄膜不允许在超过105°C的温度下工作，因为在高温下传导损失会明显增加。本研究提出了在熔融挤压铸造过程中通过调节浇注温度来提高PP薄膜高温电容性能的有效策略。结果表明，铸造温度对合金的表面形貌和晶体结构有较大的影响，同时也对合金的电性能尤其是高温下的介电性能有较大的影响。在210℃的挤压温度和140℃的铸带温度下制备的PP薄膜具有最佳的储能性能，在125℃下放电能量密度为1.93 J cm−3，储能效率为81%，并具有优异的循环性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Applied Polymer Science 化学-高分子科学

CiteScore

5.70

自引率

10.00%

发文量

1280

审稿时长

2.7 months

期刊介绍： The Journal of Applied Polymer Science is the largest peer-reviewed publication in polymers, #3 by total citations, and features results with real-world impact on membranes, polysaccharides, and much more.