{"title":"自发形成的界面结构促进无树枝状晶的锂金属电池的发展","authors":"","doi":"10.1016/j.surfin.2024.105124","DOIUrl":null,"url":null,"abstract":"<div><p>Herein a spontaneously formed solid electrolyte interface (SEI) layer with modified spherical structure is prepared by a simple strategy. Caprolactone (CL) is <em>in-situ</em> polymerized to polycaprolactone (PCL) after being triggered by Li metal, and turned into spherical distribution at the surface of Li after recrystallization treatment. Spontaneously formed spherical structure restrains the growth of Li dendrites and boosts homogeneous Li deposition. The Li||Li symmetrical cells present stable plating/stripping behavior at current density of 0.5 to 1.0 mA cm<sup>−2</sup> and exhibit excellent cycling stability. This work provides inspiration for restraining the growth of Li dendrites and building stable electrolyte/metal anode interfaces.</p></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Spontaneously formed interfacial structure boosting dendrite-free Li metal batteries\",\"authors\":\"\",\"doi\":\"10.1016/j.surfin.2024.105124\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Herein a spontaneously formed solid electrolyte interface (SEI) layer with modified spherical structure is prepared by a simple strategy. Caprolactone (CL) is <em>in-situ</em> polymerized to polycaprolactone (PCL) after being triggered by Li metal, and turned into spherical distribution at the surface of Li after recrystallization treatment. Spontaneously formed spherical structure restrains the growth of Li dendrites and boosts homogeneous Li deposition. The Li||Li symmetrical cells present stable plating/stripping behavior at current density of 0.5 to 1.0 mA cm<sup>−2</sup> and exhibit excellent cycling stability. This work provides inspiration for restraining the growth of Li dendrites and building stable electrolyte/metal anode interfaces.</p></div>\",\"PeriodicalId\":22081,\"journal\":{\"name\":\"Surfaces and Interfaces\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.7000,\"publicationDate\":\"2024-09-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Surfaces and Interfaces\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S246802302401280X\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surfaces and Interfaces","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S246802302401280X","RegionNum":2,"RegionCategory":"材料科学","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
本文采用一种简单的策略制备了一种自发形成的具有改性球形结构的固体电解质界面(SEI)层。己内酯(CL)在金属锂的触发下原位聚合成聚己内酯(PCL),经过再结晶处理后在锂表面变成球形分布。自发形成的球形结构抑制了锂枝晶的生长,促进了锂的均匀沉积。锂||锂对称电池在电流密度为 0.5 至 1.0 mA cm-2 时具有稳定的电镀/剥离行为,并表现出卓越的循环稳定性。这项研究为抑制锂枝晶的生长和建立稳定的电解质/金属阳极界面提供了灵感。
Spontaneously formed interfacial structure boosting dendrite-free Li metal batteries
Herein a spontaneously formed solid electrolyte interface (SEI) layer with modified spherical structure is prepared by a simple strategy. Caprolactone (CL) is in-situ polymerized to polycaprolactone (PCL) after being triggered by Li metal, and turned into spherical distribution at the surface of Li after recrystallization treatment. Spontaneously formed spherical structure restrains the growth of Li dendrites and boosts homogeneous Li deposition. The Li||Li symmetrical cells present stable plating/stripping behavior at current density of 0.5 to 1.0 mA cm−2 and exhibit excellent cycling stability. This work provides inspiration for restraining the growth of Li dendrites and building stable electrolyte/metal anode interfaces.
期刊介绍:
The aim of the journal is to provide a respectful outlet for ''sound science'' papers in all research areas on surfaces and interfaces. We define sound science papers as papers that describe new and well-executed research, but that do not necessarily provide brand new insights or are merely a description of research results.
Surfaces and Interfaces publishes research papers in all fields of surface science which may not always find the right home on first submission to our Elsevier sister journals (Applied Surface, Surface and Coatings Technology, Thin Solid Films)