Prussian Blue Analogue Framework Hosts for Li–S Batteries

IF 19.3 1区 材料科学 Q1 CHEMISTRY, PHYSICAL
Dasol Jin, Mihail R. Krumov, Ruth M. Mandel, Phillip J. Milner, Héctor D. Abruña
{"title":"Prussian Blue Analogue Framework Hosts for Li–S Batteries","authors":"Dasol Jin, Mihail R. Krumov, Ruth M. Mandel, Phillip J. Milner, Héctor D. Abruña","doi":"10.1021/acsenergylett.4c02857","DOIUrl":null,"url":null,"abstract":"Lithium–sulfur (Li–S) batteries hold promise for next-generation energy storage due to their high theoretical energy density (∼2600 Wh kg<sup>–1</sup>). However, practical use is hindered by capacity loss from the polysulfide shuttle effect and poor energy efficiency due to slow kinetics. To overcome these challenges, we developed a novel sulfur host material featuring highly porous concave nanocubes derived from a Prussian blue analogue. By controlling the annealing conditions, we achieved a high surface area (up to 248 m<sup>2</sup> g<sup>–1</sup>), which enhances polysulfide adsorption, thereby reducing sulfur dissolution and minimizing the loss of cathode capacity during cycling. <i>Operando</i> Raman spectroscopy revealed that this material also provides a synergistic catalytic effect, lowering polarization/overpotentials within Li–S cells. The optimized material enables an extended battery life with high sulfur loading, a low E/S ratio, and excellent capacity retention over long-term cycles, demonstrating its potential to improve Li–S battery performance.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"154 1","pages":""},"PeriodicalIF":19.3000,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Energy Letters ","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acsenergylett.4c02857","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

Abstract

Lithium–sulfur (Li–S) batteries hold promise for next-generation energy storage due to their high theoretical energy density (∼2600 Wh kg–1). However, practical use is hindered by capacity loss from the polysulfide shuttle effect and poor energy efficiency due to slow kinetics. To overcome these challenges, we developed a novel sulfur host material featuring highly porous concave nanocubes derived from a Prussian blue analogue. By controlling the annealing conditions, we achieved a high surface area (up to 248 m2 g–1), which enhances polysulfide adsorption, thereby reducing sulfur dissolution and minimizing the loss of cathode capacity during cycling. Operando Raman spectroscopy revealed that this material also provides a synergistic catalytic effect, lowering polarization/overpotentials within Li–S cells. The optimized material enables an extended battery life with high sulfur loading, a low E/S ratio, and excellent capacity retention over long-term cycles, demonstrating its potential to improve Li–S battery performance.

Abstract Image

用于锂-S 电池的普鲁士蓝模拟框架主机
锂硫(Li-S)电池因其理论能量密度高(2600 Wh kg-1)而有望成为下一代储能电池。然而,多硫穿梭效应造成的容量损失和缓慢的动力学导致的低能效阻碍了其实际应用。为了克服这些挑战,我们开发了一种新型硫宿主材料,其特点是从普鲁士蓝类似物中提取的高多孔凹面纳米立方体。通过控制退火条件,我们获得了高表面积(高达 248 m2 g-1),从而增强了对多硫化物的吸附,减少了硫的溶解,最大程度地降低了循环过程中阴极容量的损失。操作拉曼光谱显示,这种材料还具有协同催化作用,可降低锂-S 电池的极化/过电位。优化后的材料可在高硫负荷、低 E/S 比和长期循环中保持出色的容量的情况下延长电池寿命,这证明了它在提高锂-S 电池性能方面的潜力。
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
ACS Energy Letters
ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment
CiteScore
31.20
自引率
5.00%
发文量
469
审稿时长
1 months
期刊介绍: ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.
×
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