Low-Cost and High-Performance Sulfonated Polyimide Membrane for Vanadium Redox Flow Battery Application

IF 3.8 3区工程技术 Q2 ENGINEERING, CHEMICAL

Industrial & Engineering Chemistry Research Pub Date : 2025-04-02 DOI:10.1021/acs.iecr.4c04819

Gang Wang, Shuwen Zhang, Ye Zhu, Xuesong Li, Shiguo Wei, Bing Wang, Yangtian Jing, Changjiang Zuo, Jijun Chen, Jie Zhang, Yufeng Zhou, Jinwei Chen, Ruilin Wang

{"title":"Low-Cost and High-Performance Sulfonated Polyimide Membrane for Vanadium Redox Flow Battery Application","authors":"Gang Wang, Shuwen Zhang, Ye Zhu, Xuesong Li, Shiguo Wei, Bing Wang, Yangtian Jing, Changjiang Zuo, Jijun Chen, Jie Zhang, Yufeng Zhou, Jinwei Chen, Ruilin Wang","doi":"10.1021/acs.iecr.4c04819","DOIUrl":null,"url":null,"abstract":"A novel sulfonated polyimide (SPI-PTDA) is synthesized by introducing low-cost and rigid perylene-3,4,9,10-tetracarboxylic dianhydride (PTDA) into the SPI backbone. A sequence of SPI-PTDA-X membranes with different sulfonation levels has been prepared and characterized. The stable retention time of the SPI-PTDA-75 membrane in aqueous solution at 80 °C is greater than 240 h; its tensile strength (25.83 MPa) is three times that of N212, and the results of the theoretical calculations of molecular ESP indicate the existence of certain interactions within the SPI-PTDA molecule, being responsible for the enhanced mechanical strength of the SPI-PTDA membrane. Additionally, the vanadium ion selectivity of the SPI-PTDA-75 membrane is approximately double that of the N212. The VRFB with the SPI-PTDA-75 membrane demonstrates a Coulombic efficiency (CE) of 97.59% and an energy efficiency (EE) of 80.47% at 120 mA cm<sup>–2</sup>. The results of 400 charge–discharge cycling tests reveal that the SPI-PTDA-75 membrane maintains strong long-term cycling stability.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"183 1","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial & Engineering Chemistry Research","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1021/acs.iecr.4c04819","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

A novel sulfonated polyimide (SPI-PTDA) is synthesized by introducing low-cost and rigid perylene-3,4,9,10-tetracarboxylic dianhydride (PTDA) into the SPI backbone. A sequence of SPI-PTDA-X membranes with different sulfonation levels has been prepared and characterized. The stable retention time of the SPI-PTDA-75 membrane in aqueous solution at 80 °C is greater than 240 h; its tensile strength (25.83 MPa) is three times that of N212, and the results of the theoretical calculations of molecular ESP indicate the existence of certain interactions within the SPI-PTDA molecule, being responsible for the enhanced mechanical strength of the SPI-PTDA membrane. Additionally, the vanadium ion selectivity of the SPI-PTDA-75 membrane is approximately double that of the N212. The VRFB with the SPI-PTDA-75 membrane demonstrates a Coulombic efficiency (CE) of 97.59% and an energy efficiency (EE) of 80.47% at 120 mA cm^–2. The results of 400 charge–discharge cycling tests reveal that the SPI-PTDA-75 membrane maintains strong long-term cycling stability.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Industrial & Engineering Chemistry Research 工程技术-工程：化工

CiteScore

7.40

自引率

7.10%

发文量

1467

审稿时长

2.8 months

期刊介绍： ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.