{"title":"Deformation Mechanism Maps of Pure Lithium: Their Application in Determining Stack Pressure for All-Solid-State Lithium-Ion Batteries","authors":"Hee-Tae Jeong, and , Woo Jin Kim*, ","doi":"10.1021/acsenergylett.4c01229","DOIUrl":null,"url":null,"abstract":"<p >This study provides a guide for enhancing the stability of the interface between the Li metal anode and solid-state electrolytes (SSEs) in all-solid-state Li-ion batteries by controlling stack pressure. It begins by formulating constitutive equations for various creep deformation mechanisms in pure Li, based on a careful analysis of the experimental data for Li gathered from the literature over the past 60 years. This analysis facilitates the construction of comprehensive deformation mechanism maps (DMMs) for pure Li. Next, it is demonstrated how DMMs can aid in determining the ideal stack pressure to mitigate void/dendrite formation at the interface between the Li metal and SSEs. This optimal stack pressure is found to vary depending on factors such as the Li metal thickness, the aspect ratio of the Li metal, current density, grain size of the Li metal, and temperature. Experimental data are compared with the predictions, and the results are discussed.</p>","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":19.3000,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Energy Letters ","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsenergylett.4c01229","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
This study provides a guide for enhancing the stability of the interface between the Li metal anode and solid-state electrolytes (SSEs) in all-solid-state Li-ion batteries by controlling stack pressure. It begins by formulating constitutive equations for various creep deformation mechanisms in pure Li, based on a careful analysis of the experimental data for Li gathered from the literature over the past 60 years. This analysis facilitates the construction of comprehensive deformation mechanism maps (DMMs) for pure Li. Next, it is demonstrated how DMMs can aid in determining the ideal stack pressure to mitigate void/dendrite formation at the interface between the Li metal and SSEs. This optimal stack pressure is found to vary depending on factors such as the Li metal thickness, the aspect ratio of the Li metal, current density, grain size of the Li metal, and temperature. Experimental data are compared with the predictions, and the results are discussed.
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.