{"title":"A polymeric artificial solid electrolyte interface dramatically enhances lithium-ion transport†","authors":"Chun Li , Bin Hu , Yujuan Wang , Kedong Bi","doi":"10.1039/d4cc03688c","DOIUrl":null,"url":null,"abstract":"<div><div>Coulombic efficiency and cycle life require further improvement in an ever-growing practical demand for lithium-ion batteries (LIBs), which are one of the most prevalent electrochemical energy storage systems. In this work, a more stable and highly lithium-ion (Li-ion) conductive artificial solid electrolyte interface (A-SEI) is constructed by coating polythiophene (PTh) on the surface of a graphite anode based on molecular dynamic simulations. Our findings reveal that PTh chains effectively prevent direct contact between the electrolyte and the negative electrode while providing a rapid transport channel for lithium ions (Li-ions), resulting in significantly shorter trapping times for Li-ions—at least two orders of magnitude shorter than those in the predominant component of traditional SEI layers.</div></div>","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"60 79","pages":"Pages 11124-11127"},"PeriodicalIF":4.3000,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S1359734524018573","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Coulombic efficiency and cycle life require further improvement in an ever-growing practical demand for lithium-ion batteries (LIBs), which are one of the most prevalent electrochemical energy storage systems. In this work, a more stable and highly lithium-ion (Li-ion) conductive artificial solid electrolyte interface (A-SEI) is constructed by coating polythiophene (PTh) on the surface of a graphite anode based on molecular dynamic simulations. Our findings reveal that PTh chains effectively prevent direct contact between the electrolyte and the negative electrode while providing a rapid transport channel for lithium ions (Li-ions), resulting in significantly shorter trapping times for Li-ions—at least two orders of magnitude shorter than those in the predominant component of traditional SEI layers.
期刊介绍:
ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.