Electrochemical and structural performances of carbon and glass fiber-reinforced structural supercapacitor composite at elevated temperatures

IF 3.1 Q2 MATERIALS SCIENCE, COMPOSITES
Jayani Anurangi, Madhubhashitha Herath, Dona T L Galhena and Jayantha Epaarachchi
{"title":"Electrochemical and structural performances of carbon and glass fiber-reinforced structural supercapacitor composite at elevated temperatures","authors":"Jayani Anurangi, Madhubhashitha Herath, Dona T L Galhena and Jayantha Epaarachchi","doi":"10.1088/2631-6331/ad5e32","DOIUrl":null,"url":null,"abstract":"The structural supercapacitor can store electrical energy and withstand structural loads while saving substantial weight in many structural applications. This study investigated the development of a structural supercapacitor with a fiber-reinforced polymer composite system and explored the operating temperature’s influence on its performance. The electrochemical and mechanical properties of structural supercapacitors beyond the ambient temperature have not yet been studied; hence, evaluating parameters such as specific capacitance, energy density, cycle life, and structural performance at elevated temperatures are highly desired. We have designed and manufactured single and parallelly connected multilayer structural supercapacitor composites in this research. Carbon fibers were used as a bifunctional component, acting both as a current collector while acting as a mechanical reinforcement. In addition, glass fibers were added as the separator which is also acting as an integral reinforcement. The electrochemical and mechanical behavior of structural supercapacitors at elevated temperatures up to 85 °C were experimentally investigated. The test results revealed that at room temperature, the developed double-cell structural supercapacitor, which demonstrated an area-specific capacitance of 1.16 mF cm−2 and energy density of 0.36 mWh cm−2 at 0.24 mA cm−2, which are comparable to current achievements in structural supercapacitor research. The structural supercapacitor’s tensile, flexural, and compression strengths were measured as 109.5 MPa, 47.0 MPa, and 50.4 MPa, respectively. The specific capacitance and energy density reached 2.58 mF cm−2 and 0.81 mWh cm−2, while tensile, flexural, and compression strengths were reduced to 70.9 MPa, 14.2 MPa, and 8.8 MPa, respectively, at 85 °C. These findings provide new comprehensive knowledge on structural supercapacitor devices suitable for applications operating within a temperature range from ambient conditions to 85 °C.","PeriodicalId":12652,"journal":{"name":"Functional Composites and Structures","volume":null,"pages":null},"PeriodicalIF":3.1000,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Functional Composites and Structures","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/2631-6331/ad5e32","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
引用次数: 0

Abstract

The structural supercapacitor can store electrical energy and withstand structural loads while saving substantial weight in many structural applications. This study investigated the development of a structural supercapacitor with a fiber-reinforced polymer composite system and explored the operating temperature’s influence on its performance. The electrochemical and mechanical properties of structural supercapacitors beyond the ambient temperature have not yet been studied; hence, evaluating parameters such as specific capacitance, energy density, cycle life, and structural performance at elevated temperatures are highly desired. We have designed and manufactured single and parallelly connected multilayer structural supercapacitor composites in this research. Carbon fibers were used as a bifunctional component, acting both as a current collector while acting as a mechanical reinforcement. In addition, glass fibers were added as the separator which is also acting as an integral reinforcement. The electrochemical and mechanical behavior of structural supercapacitors at elevated temperatures up to 85 °C were experimentally investigated. The test results revealed that at room temperature, the developed double-cell structural supercapacitor, which demonstrated an area-specific capacitance of 1.16 mF cm−2 and energy density of 0.36 mWh cm−2 at 0.24 mA cm−2, which are comparable to current achievements in structural supercapacitor research. The structural supercapacitor’s tensile, flexural, and compression strengths were measured as 109.5 MPa, 47.0 MPa, and 50.4 MPa, respectively. The specific capacitance and energy density reached 2.58 mF cm−2 and 0.81 mWh cm−2, while tensile, flexural, and compression strengths were reduced to 70.9 MPa, 14.2 MPa, and 8.8 MPa, respectively, at 85 °C. These findings provide new comprehensive knowledge on structural supercapacitor devices suitable for applications operating within a temperature range from ambient conditions to 85 °C.
碳纤维和玻璃纤维增强结构超级电容器复合材料在高温下的电化学和结构性能
在许多结构应用中,结构超级电容器可以存储电能并承受结构载荷,同时减轻大量重量。本研究调查了使用纤维增强聚合物复合材料系统开发结构超级电容器的情况,并探讨了工作温度对其性能的影响。结构超级电容器在环境温度以外的电化学和机械性能尚未得到研究;因此,评估比电容、能量密度、循环寿命和高温下的结构性能等参数是非常必要的。在这项研究中,我们设计并制造了单层和平行连接的多层结构超级电容器复合材料。碳纤维被用作双功能成分,既可作为电流收集器,又可作为机械加固材料。此外,还添加了玻璃纤维作为分隔物,也起到了整体增强的作用。实验研究了结构超级电容器在高达 85 °C 的高温下的电化学和机械行为。测试结果表明,在室温下,所开发的双电池结构超级电容器的特定区域电容为 1.16 mF cm-2,在 0.24 mA cm-2 的条件下能量密度为 0.36 mWh cm-2,与目前结构超级电容器研究的成果相当。结构超级电容器的拉伸强度、弯曲强度和压缩强度分别为 109.5 兆帕、47.0 兆帕和 50.4 兆帕。在 85 °C 时,比电容和能量密度分别达到 2.58 mF cm-2 和 0.81 mWh cm-2,而抗拉、抗弯和抗压强度则分别降低到 70.9 MPa、14.2 MPa 和 8.8 MPa。这些发现为适合在从环境温度到 85 °C 的温度范围内工作的结构性超级电容器器件提供了新的全面知识。
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
Functional Composites and Structures
Functional Composites and Structures Materials Science-Materials Science (miscellaneous)
CiteScore
4.80
自引率
10.70%
发文量
33
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信