Chengwei Ma , Xinyu Zhang , Chengcai Liu , Yuanxing Zhang , Yuanshen Wang , Ling Liu , Zhikun Zhao , Borong Wu , Daobin Mu
{"title":"纳米二氧化硅气凝胶诱导形成的有机/合金两相界面层能够构建稳定的高能锂金属电池","authors":"Chengwei Ma , Xinyu Zhang , Chengcai Liu , Yuanxing Zhang , Yuanshen Wang , Ling Liu , Zhikun Zhao , Borong Wu , Daobin Mu","doi":"10.1016/j.gee.2021.12.006","DOIUrl":null,"url":null,"abstract":"<div><p>Lithium metal batteries represent promising candidates for high-energy-density batteries, however, many challenges must still be overcome, e.g., interface instability and dendrite growth. In this work, nano silica aerogel was employed to generate a hybrid film with high lithium ion conductivity (0.6 mS cm<sup>−1</sup> at room temperature) via an in situ crosslinking reaction. TOF-SIMS profile analysis has revealed conversion mechanism of hybrid film to Li–Si alloy/LiF biphasic interface layer, suggesting that the Li–Si alloy and LiF-rich interface layer promoted rapid Li<sup>+</sup> transport and shielded the Li anodes from corrosive reactions with electrolyte-derived products. When coupled with nickel-cobalt-manganese-based cathodes, the batteries achieve outstanding capacity retention over 1000 cycles at 1 C. Additionally the developed film coated on Li enabled high coulombic efficiency (99.5%) after long-term cycling when coupled with S cathodes. Overall, the results presented herein confirm an effective strategy for the development of high-energy batteries.</p></div>","PeriodicalId":12744,"journal":{"name":"Green Energy & Environment","volume":null,"pages":null},"PeriodicalIF":10.7000,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Nano silica aerogel-induced formation of an organic/alloy biphasic interfacial layer enables construction of stable high-energy lithium metal batteries\",\"authors\":\"Chengwei Ma , Xinyu Zhang , Chengcai Liu , Yuanxing Zhang , Yuanshen Wang , Ling Liu , Zhikun Zhao , Borong Wu , Daobin Mu\",\"doi\":\"10.1016/j.gee.2021.12.006\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Lithium metal batteries represent promising candidates for high-energy-density batteries, however, many challenges must still be overcome, e.g., interface instability and dendrite growth. In this work, nano silica aerogel was employed to generate a hybrid film with high lithium ion conductivity (0.6 mS cm<sup>−1</sup> at room temperature) via an in situ crosslinking reaction. TOF-SIMS profile analysis has revealed conversion mechanism of hybrid film to Li–Si alloy/LiF biphasic interface layer, suggesting that the Li–Si alloy and LiF-rich interface layer promoted rapid Li<sup>+</sup> transport and shielded the Li anodes from corrosive reactions with electrolyte-derived products. When coupled with nickel-cobalt-manganese-based cathodes, the batteries achieve outstanding capacity retention over 1000 cycles at 1 C. Additionally the developed film coated on Li enabled high coulombic efficiency (99.5%) after long-term cycling when coupled with S cathodes. Overall, the results presented herein confirm an effective strategy for the development of high-energy batteries.</p></div>\",\"PeriodicalId\":12744,\"journal\":{\"name\":\"Green Energy & Environment\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.7000,\"publicationDate\":\"2023-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Green Energy & Environment\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2468025721002090\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Green Energy & Environment","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2468025721002090","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 2
摘要
锂金属电池是高能量密度电池的有前途的候选者,然而,许多挑战仍然必须克服,例如界面不稳定性和枝晶生长。在这项工作中,纳米二氧化硅气凝胶通过原位交联反应制备了具有高锂离子电导率(室温下0.6 mS cm−1)的杂化膜。TOF-SIMS剖面分析揭示了杂化膜向Li–Si合金/LiF双相界面层的转化机制,表明Li–硅合金和富LiF界面层促进了Li+的快速传输,并保护了Li阳极免受电解质衍生产物的腐蚀反应。当与镍-钴-锰基阴极耦合时,电池在1℃下1000次循环中实现了出色的容量保持。此外,在与S阴极耦合时的长期循环后,涂覆在Li上的显影膜能够实现高库仑效率(99.5%)。总的来说,本文的结果证实了开发高能电池的有效策略。
Nano silica aerogel-induced formation of an organic/alloy biphasic interfacial layer enables construction of stable high-energy lithium metal batteries
Lithium metal batteries represent promising candidates for high-energy-density batteries, however, many challenges must still be overcome, e.g., interface instability and dendrite growth. In this work, nano silica aerogel was employed to generate a hybrid film with high lithium ion conductivity (0.6 mS cm−1 at room temperature) via an in situ crosslinking reaction. TOF-SIMS profile analysis has revealed conversion mechanism of hybrid film to Li–Si alloy/LiF biphasic interface layer, suggesting that the Li–Si alloy and LiF-rich interface layer promoted rapid Li+ transport and shielded the Li anodes from corrosive reactions with electrolyte-derived products. When coupled with nickel-cobalt-manganese-based cathodes, the batteries achieve outstanding capacity retention over 1000 cycles at 1 C. Additionally the developed film coated on Li enabled high coulombic efficiency (99.5%) after long-term cycling when coupled with S cathodes. Overall, the results presented herein confirm an effective strategy for the development of high-energy batteries.
期刊介绍:
Green Energy & Environment (GEE) is an internationally recognized journal that undergoes a rigorous peer-review process. It focuses on interdisciplinary research related to green energy and the environment, covering a wide range of topics including biofuel and bioenergy, energy storage and networks, catalysis for sustainable processes, and materials for energy and the environment. GEE has a broad scope and encourages the submission of original and innovative research in both fundamental and engineering fields. Additionally, GEE serves as a platform for discussions, summaries, reviews, and previews of the impact of green energy on the eco-environment.