位阻诱导的非晶硫化锂沉积加速了锂硫电池中硫的氧化还原动力学

IF 27.4 1区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Zhihua Wang, Junru Ke, He Zhu, Fan Xue, Jun Jiang, Wen Huang, Min Dong, Xindong Zhu, Jianrong Zeng, Ruoyu Song, Rafal Sliz, Qingmin Ji, Qi Liu, Yongsheng Fu, Si Lan
{"title":"位阻诱导的非晶硫化锂沉积加速了锂硫电池中硫的氧化还原动力学","authors":"Zhihua Wang, Junru Ke, He Zhu, Fan Xue, Jun Jiang, Wen Huang, Min Dong, Xindong Zhu, Jianrong Zeng, Ruoyu Song, Rafal Sliz, Qingmin Ji, Qi Liu, Yongsheng Fu, Si Lan","doi":"10.1002/adma.202504715","DOIUrl":null,"url":null,"abstract":"Lithium–sulfur (Li─S) batteries are promising candidates for next-generation energy storage due to their ultrahigh theoretical energy density. However, their practical application is severely hindered by the sluggish conversion kinetics, particularly during the crystalline lithium sulfide (Li<sub>2</sub>S) formation stage. Herein, a steric hindrance-mediated engineering strategy is proposed that induces an amorphous Li<sub>2</sub>S deposition process, effectively boosting the sulfur redox kinetics in Li─S batteries. By introducing benzo-15-crown-5 (B15C5) as an electrolyte additive, a strong coordination between B15C5 and lithium ion (Li<sup>+</sup>) is established, which creates spatial confinement around Li<sub>2</sub>S and disrupts the crystallinity of Li<sub>2</sub>S during its deposition. Synchrotron pair distribution function analysis combined with in situ X-ray diffraction reveals that the deposited Li<sub>2</sub>S with B15C5 exhibits significant local disorder with irregular Li─S bond oscillations, confirming the generation of an amorphous phase. This strategy not only ensures a uniform Li<sub>2</sub>S layer at the cathode/electrolyte interface but also lowers the energy barrier of sulfur species at the molecular scale, enabling the Li─S batteries with excellent cycling stability and overall enhanced sulfur reaction kinetics. This work provides a novel pathway for overcoming the intrinsic limitations of sluggish cathode conversion kinetics of Li─S batteries, paving the way for their practical deployment in high-performance energy storage applications.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"27 1","pages":""},"PeriodicalIF":27.4000,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Steric Hindrance-Induced Amorphous Lithium Sulfide Deposition Accelerates Sulfur Redox Kinetics in Lithium–Sulfur Batteries\",\"authors\":\"Zhihua Wang, Junru Ke, He Zhu, Fan Xue, Jun Jiang, Wen Huang, Min Dong, Xindong Zhu, Jianrong Zeng, Ruoyu Song, Rafal Sliz, Qingmin Ji, Qi Liu, Yongsheng Fu, Si Lan\",\"doi\":\"10.1002/adma.202504715\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Lithium–sulfur (Li─S) batteries are promising candidates for next-generation energy storage due to their ultrahigh theoretical energy density. However, their practical application is severely hindered by the sluggish conversion kinetics, particularly during the crystalline lithium sulfide (Li<sub>2</sub>S) formation stage. Herein, a steric hindrance-mediated engineering strategy is proposed that induces an amorphous Li<sub>2</sub>S deposition process, effectively boosting the sulfur redox kinetics in Li─S batteries. By introducing benzo-15-crown-5 (B15C5) as an electrolyte additive, a strong coordination between B15C5 and lithium ion (Li<sup>+</sup>) is established, which creates spatial confinement around Li<sub>2</sub>S and disrupts the crystallinity of Li<sub>2</sub>S during its deposition. Synchrotron pair distribution function analysis combined with in situ X-ray diffraction reveals that the deposited Li<sub>2</sub>S with B15C5 exhibits significant local disorder with irregular Li─S bond oscillations, confirming the generation of an amorphous phase. This strategy not only ensures a uniform Li<sub>2</sub>S layer at the cathode/electrolyte interface but also lowers the energy barrier of sulfur species at the molecular scale, enabling the Li─S batteries with excellent cycling stability and overall enhanced sulfur reaction kinetics. This work provides a novel pathway for overcoming the intrinsic limitations of sluggish cathode conversion kinetics of Li─S batteries, paving the way for their practical deployment in high-performance energy storage applications.\",\"PeriodicalId\":114,\"journal\":{\"name\":\"Advanced Materials\",\"volume\":\"27 1\",\"pages\":\"\"},\"PeriodicalIF\":27.4000,\"publicationDate\":\"2025-05-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1002/adma.202504715\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/adma.202504715","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

锂硫(Li─S)电池因其超高的理论能量密度而成为下一代储能的有希望的候选者。然而,它们的实际应用受到缓慢的转化动力学的严重阻碍,特别是在结晶硫化锂(Li2S)形成阶段。本文提出了一种空间位阻介导的工程策略,诱导非晶Li2S沉积过程,有效地提高了Li─S电池中硫的氧化还原动力学。通过引入苯并-15-冠-5 (B15C5)作为电解质添加剂,B15C5与锂离子(Li+)之间建立了强配位,在Li2S周围形成空间约束,破坏了Li2S在沉积过程中的结晶度。同步加速器对分布函数分析结合原位x射线衍射表明,B15C5沉积的Li2S具有明显的局部无序性,Li─S键振荡不规则,证实了非晶相的产生。该策略不仅确保了阴极/电解质界面上均匀的Li2S层,而且降低了硫在分子尺度上的能垒,使Li─S电池具有优异的循环稳定性和整体增强的硫反应动力学。这项工作为克服Li─S电池阴极转换动力学缓慢的固有局限性提供了一条新的途径,为其在高性能储能应用中的实际部署铺平了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Steric Hindrance-Induced Amorphous Lithium Sulfide Deposition Accelerates Sulfur Redox Kinetics in Lithium–Sulfur Batteries

Steric Hindrance-Induced Amorphous Lithium Sulfide Deposition Accelerates Sulfur Redox Kinetics in Lithium–Sulfur Batteries
Lithium–sulfur (Li─S) batteries are promising candidates for next-generation energy storage due to their ultrahigh theoretical energy density. However, their practical application is severely hindered by the sluggish conversion kinetics, particularly during the crystalline lithium sulfide (Li2S) formation stage. Herein, a steric hindrance-mediated engineering strategy is proposed that induces an amorphous Li2S deposition process, effectively boosting the sulfur redox kinetics in Li─S batteries. By introducing benzo-15-crown-5 (B15C5) as an electrolyte additive, a strong coordination between B15C5 and lithium ion (Li+) is established, which creates spatial confinement around Li2S and disrupts the crystallinity of Li2S during its deposition. Synchrotron pair distribution function analysis combined with in situ X-ray diffraction reveals that the deposited Li2S with B15C5 exhibits significant local disorder with irregular Li─S bond oscillations, confirming the generation of an amorphous phase. This strategy not only ensures a uniform Li2S layer at the cathode/electrolyte interface but also lowers the energy barrier of sulfur species at the molecular scale, enabling the Li─S batteries with excellent cycling stability and overall enhanced sulfur reaction kinetics. This work provides a novel pathway for overcoming the intrinsic limitations of sluggish cathode conversion kinetics of Li─S batteries, paving the way for their practical deployment in high-performance energy storage applications.
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
Advanced Materials
Advanced Materials 工程技术-材料科学:综合
CiteScore
43.00
自引率
4.10%
发文量
2182
审稿时长
2 months
期刊介绍: Advanced Materials, one of the world's most prestigious journals and the foundation of the Advanced portfolio, is the home of choice for best-in-class materials science for more than 30 years. Following this fast-growing and interdisciplinary field, we are considering and publishing the most important discoveries on any and all materials from materials scientists, chemists, physicists, engineers as well as health and life scientists and bringing you the latest results and trends in modern materials-related research every week.
×
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