具有亚磺酰官能化亚胺阴离子的离子液体及其锂电解质:(I)物理和电化学特性

IF 5.4 Q2 CHEMISTRY, PHYSICAL Journal of Power Sources Advances Pub Date : 2024-07-18 DOI:10.1016/j.powera.2024.100154
{"title":"具有亚磺酰官能化亚胺阴离子的离子液体及其锂电解质:(I)物理和电化学特性","authors":"","doi":"10.1016/j.powera.2024.100154","DOIUrl":null,"url":null,"abstract":"<div><p>Imide-based ionic liquids (ILs) are intriguing candidates for constructing safer electrolytes and better rechargeable batteries. In this work, a sulfinyl-functionalized imide anion, (trifluoromethanesulfinyl) (trifluoromethanesulfonyl)imide anion ([(CF<sub>3</sub>SO) (CF<sub>3</sub>SO<sub>2</sub>)N]<sup>−</sup>, [qTFSI]<sup>−</sup>), is proposed as negative charge for building low-melting ILs and high-performing electrolytes. The physicochemical properties of [qTFSI]-based ILs and their electrolytes are extensively characterized, and the reference systems with the classic sulfonimide anion, bis(trifluoromethanesulfonyl)imide anion ([(CF<sub>3</sub>SO<sub>2</sub>)<sub>2</sub>N]<sup>−</sup>, [TFSI]<sup>−</sup>) are also comparatively investigated. It has been revealed that the [qTFSI]<sup>−</sup> anion shows lesser extent of negative charge delocalization as compared to the reference [TFSI]<sup>−</sup> anion, which is responsible for slightly stronger interactions between IL cations and the sulfinyl-functionalized anion. The asymmetric feature of the [qTFSI]<sup>−</sup> anion contributes to lower glass and melting transitions of the corresponding ILs vs. [TFSI]-based ones, which effectively expands the operational temperature of the rechargeable batteries. Furthermore, the co-utilization of [qTFSI]<sup>−</sup> with [TFSI]<sup>−</sup> is found to improve the electrochemical compatibility of Li metal anode with the IL-based electrolytes, sustaining better cycling stability of the Li symmetric cells. The current work offers an elegant approach for the design of new anions for interface-favorable ILs and their electrolytes.</p></div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":null,"pages":null},"PeriodicalIF":5.4000,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666248524000209/pdfft?md5=7c9b6e2215ce8193cb108128d1d0697a&pid=1-s2.0-S2666248524000209-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Ionic liquids with sulfinyl-functionalized imide anion and their lithium electrolytes: (I) Physical and electrochemical properties\",\"authors\":\"\",\"doi\":\"10.1016/j.powera.2024.100154\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Imide-based ionic liquids (ILs) are intriguing candidates for constructing safer electrolytes and better rechargeable batteries. In this work, a sulfinyl-functionalized imide anion, (trifluoromethanesulfinyl) (trifluoromethanesulfonyl)imide anion ([(CF<sub>3</sub>SO) (CF<sub>3</sub>SO<sub>2</sub>)N]<sup>−</sup>, [qTFSI]<sup>−</sup>), is proposed as negative charge for building low-melting ILs and high-performing electrolytes. The physicochemical properties of [qTFSI]-based ILs and their electrolytes are extensively characterized, and the reference systems with the classic sulfonimide anion, bis(trifluoromethanesulfonyl)imide anion ([(CF<sub>3</sub>SO<sub>2</sub>)<sub>2</sub>N]<sup>−</sup>, [TFSI]<sup>−</sup>) are also comparatively investigated. It has been revealed that the [qTFSI]<sup>−</sup> anion shows lesser extent of negative charge delocalization as compared to the reference [TFSI]<sup>−</sup> anion, which is responsible for slightly stronger interactions between IL cations and the sulfinyl-functionalized anion. The asymmetric feature of the [qTFSI]<sup>−</sup> anion contributes to lower glass and melting transitions of the corresponding ILs vs. [TFSI]-based ones, which effectively expands the operational temperature of the rechargeable batteries. Furthermore, the co-utilization of [qTFSI]<sup>−</sup> with [TFSI]<sup>−</sup> is found to improve the electrochemical compatibility of Li metal anode with the IL-based electrolytes, sustaining better cycling stability of the Li symmetric cells. The current work offers an elegant approach for the design of new anions for interface-favorable ILs and their electrolytes.</p></div>\",\"PeriodicalId\":34318,\"journal\":{\"name\":\"Journal of Power Sources Advances\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.4000,\"publicationDate\":\"2024-07-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2666248524000209/pdfft?md5=7c9b6e2215ce8193cb108128d1d0697a&pid=1-s2.0-S2666248524000209-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Power Sources Advances\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666248524000209\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Power Sources Advances","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666248524000209","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

摘要

酰亚胺基离子液体(ILs)是构建更安全的电解质和更好的可充电电池的理想候选物质。本研究提出了一种亚磺酰官能化的亚胺阴离子--(三氟甲烷亚磺酰基)(三氟甲烷磺酰基)亚胺阴离子([(CF3SO) (CF3SO2)N]-,[qTFSI]-),作为构建低熔点离子液体和高性能电解质的负电荷。研究人员对基于[qTFSI]的离子交换树脂及其电解质的物理化学性质进行了广泛表征,并与经典的磺酰亚胺阴离子、双(三氟甲烷磺酰)亚胺阴离子([(CF3SO2)2N]-,[TFSI]-)参考体系进行了比较研究。研究发现,与参考的[TFSI]-阴离子相比,[qTFSI]-阴离子的负电荷分散程度较低,这也是 IL 阳离子与亚磺酰官能化阴离子之间相互作用略强的原因。与基于[TFSI]的离子相比,[qTFSI]-阴离子的不对称特征有助于降低相应离子醇的玻璃态和熔化态,从而有效地提高了充电电池的工作温度。此外,[qTFSI]- 与 [TFSI]- 的共同使用还能改善锂金属阳极与基于 IL 的电解质之间的电化学相容性,从而使锂离子对称电池保持更好的循环稳定性。目前的工作为设计界面友好型 IL 及其电解质的新阴离子提供了一种优雅的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Ionic liquids with sulfinyl-functionalized imide anion and their lithium electrolytes: (I) Physical and electrochemical properties

Imide-based ionic liquids (ILs) are intriguing candidates for constructing safer electrolytes and better rechargeable batteries. In this work, a sulfinyl-functionalized imide anion, (trifluoromethanesulfinyl) (trifluoromethanesulfonyl)imide anion ([(CF3SO) (CF3SO2)N], [qTFSI]), is proposed as negative charge for building low-melting ILs and high-performing electrolytes. The physicochemical properties of [qTFSI]-based ILs and their electrolytes are extensively characterized, and the reference systems with the classic sulfonimide anion, bis(trifluoromethanesulfonyl)imide anion ([(CF3SO2)2N], [TFSI]) are also comparatively investigated. It has been revealed that the [qTFSI] anion shows lesser extent of negative charge delocalization as compared to the reference [TFSI] anion, which is responsible for slightly stronger interactions between IL cations and the sulfinyl-functionalized anion. The asymmetric feature of the [qTFSI] anion contributes to lower glass and melting transitions of the corresponding ILs vs. [TFSI]-based ones, which effectively expands the operational temperature of the rechargeable batteries. Furthermore, the co-utilization of [qTFSI] with [TFSI] is found to improve the electrochemical compatibility of Li metal anode with the IL-based electrolytes, sustaining better cycling stability of the Li symmetric cells. The current work offers an elegant approach for the design of new anions for interface-favorable ILs and their electrolytes.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
9.10
自引率
0.00%
发文量
18
审稿时长
64 days
期刊最新文献
Formulating PEO-polycarbonate blends as solid polymer electrolytes by solvent-free extrusion Enhancing performance and sustainability of lithium manganese oxide cathodes with a poly(ionic liquid) binder and ionic liquid electrolyte Enhancing the stability of sodium-ion capacitors by introducing glyoxylic-acetal based electrolyte The implementation of a voltage-based tunneling mechanism in aging models for lithium-ion batteries Electronic structure evolution upon lithiation: A Li K-edge study of silicon oxide anode through X-ray Raman spectroscopy
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1