Enhancing electrochemical performance and stabilizing zinc anode in mild acidic electrolyte using combined additive
Shiva Rezaei Motlagh , Ramin Khezri , Ahmad Azmin Mohamad , Rojana Pornprasertsuk , Pinit Kidkhunthod , Mai Thanh Nguyen , Tetsu Yonezawa , Soorathep Kheawhom
{"title":"Enhancing electrochemical performance and stabilizing zinc anode in mild acidic electrolyte using combined additive","authors":"Shiva Rezaei Motlagh , Ramin Khezri , Ahmad Azmin Mohamad , Rojana Pornprasertsuk , Pinit Kidkhunthod , Mai Thanh Nguyen , Tetsu Yonezawa , Soorathep Kheawhom","doi":"10.1016/j.mset.2022.12.011","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":18283,"journal":{"name":"Materials Science for Energy Technologies","volume":"6 ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science for Energy Technologies","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2589299122000763","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Materials Science","Score":null,"Total":0}
引用次数: 8
复合添加剂提高锌阳极在弱酸性电解液中的电化学性能及稳定性
具有水性电解质的可充电锌基电池是大规模储能系统(ESS)的有前途的替代品。然而,在弱酸性电解质中,锌阳极存在一些尚未克服的问题。对于解决锌阳极的主要困难,电解质工程是最实用、最具成本效益的策略。尽管与不同的电解质添加剂相关的机理多种多样,但单一添加剂的作用是直接的。寻找具有更广泛功能和更高功效的组合添加剂至关重要。在这项工作中,离子液体(IL)1-丁基-1-甲基吡咯烷鎓二氰胺([BMPY][DCN])和乙二醇(EG)作为添加剂在水性电解质3M ZnSO4中的组合被证明是同时增强锌溶解和沉积的有效策略。IL显著增强锌(Zn)的溶解和沉积,而EG在抑制析氢反应(HER)和腐蚀方面发挥着重要作用。因此,与3M ZnSO4电解质相比,混合添加剂EG+IL/ZnSO4的容量提高了13.50%。在2 mA cm−2的Zn//Zn对称体系中,混合添加剂大大提高了锌的可循环性,达到400 h以上,同时保持了优异的库仑效率(CE)。原位XAS和FT-EXAFS分析证实了锌在混合添加剂电解质中的高氧化/还原活性。结果表明,EG+IL/ZnSO4可以在保持高性能的同时提高水性锌基电池的可循环性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。