空气暴露的锂金属作为低温储能应用的高稳定阳极

Shumin Zheng, H. Geng, S. Eliseeva, Baoquan Wang
{"title":"空气暴露的锂金属作为低温储能应用的高稳定阳极","authors":"Shumin Zheng, H. Geng, S. Eliseeva, Baoquan Wang","doi":"10.20517/energymater.2022.66","DOIUrl":null,"url":null,"abstract":"The demand for cryogenic applications has resulted in higher requirements for the low-temperature performance of energy storage systems. Lithium-metal batteries are the most promising energy storage systems. Lithium-metal anodes have the merits of high capacity and low potential. However, at low temperatures, especially sub-zero, the formation of lithium dendrites seriously hinders their applications. Herein, distinct from the traditional strategies of separating lithium metal from oxygen substances, we propose a new strategy to suppress dendrites by exposing lithium metal to air for short periods to generate a controlled oxidative protective layer in situ that is compact, homogeneous and mainly composed of Li3N, Li2O, LiOH and Li2CO3. Symmetrical and full cells are assembled. The air-pretreated Li metal symmetrical cell exhibits an excellent lifespan of up to 4500 h (1 mA cm-2) at 30 °C and also shows a smaller voltage polarization of 20 mV at 1.0 mA cm-2 at -20 °C. Importantly, the full cell using the air-pretreated Li metal as an anode and NCM811 as a cathode can charge-discharge normally at -20 and -40 °C. This work provides an efficient and facile approach for developing superior lithium-metal batteries for future utilization at a wide range of temperatures.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"57 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Air-exposed lithium metal as a highly stable anode for low-temperature energy storage applications\",\"authors\":\"Shumin Zheng, H. Geng, S. Eliseeva, Baoquan Wang\",\"doi\":\"10.20517/energymater.2022.66\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The demand for cryogenic applications has resulted in higher requirements for the low-temperature performance of energy storage systems. Lithium-metal batteries are the most promising energy storage systems. Lithium-metal anodes have the merits of high capacity and low potential. However, at low temperatures, especially sub-zero, the formation of lithium dendrites seriously hinders their applications. Herein, distinct from the traditional strategies of separating lithium metal from oxygen substances, we propose a new strategy to suppress dendrites by exposing lithium metal to air for short periods to generate a controlled oxidative protective layer in situ that is compact, homogeneous and mainly composed of Li3N, Li2O, LiOH and Li2CO3. Symmetrical and full cells are assembled. The air-pretreated Li metal symmetrical cell exhibits an excellent lifespan of up to 4500 h (1 mA cm-2) at 30 °C and also shows a smaller voltage polarization of 20 mV at 1.0 mA cm-2 at -20 °C. Importantly, the full cell using the air-pretreated Li metal as an anode and NCM811 as a cathode can charge-discharge normally at -20 and -40 °C. This work provides an efficient and facile approach for developing superior lithium-metal batteries for future utilization at a wide range of temperatures.\",\"PeriodicalId\":21863,\"journal\":{\"name\":\"Solar Energy Materials\",\"volume\":\"57 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Solar Energy Materials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.20517/energymater.2022.66\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solar Energy Materials","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.20517/energymater.2022.66","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3

摘要

低温应用的需求对储能系统的低温性能提出了更高的要求。锂金属电池是最有前途的储能系统。锂金属阳极具有高容量、低电位的优点。然而,在低温下,特别是在零度以下,锂枝晶的形成严重阻碍了它们的应用。与传统的将金属锂从氧物质中分离的策略不同,我们提出了一种新的抑制枝晶的策略,即将金属锂短时间暴露在空气中,在原位生成一个致密、均匀的氧化保护层,主要由Li3N、Li2O、LiOH和Li2CO3组成。对称和完整的细胞组装。空气预处理的锂金属对称电池在30°C下具有长达4500 h (1 mA cm-2)的优异寿命,并且在-20°C下具有较小的电压极化,在1.0 mA cm-2下为20 mV。重要的是,使用空气预处理的锂金属作为阳极,NCM811作为阴极的全电池可以在-20和-40°C下正常充放电。这项工作为开发未来在广泛温度范围内使用的优质锂金属电池提供了一种有效而简便的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Air-exposed lithium metal as a highly stable anode for low-temperature energy storage applications
The demand for cryogenic applications has resulted in higher requirements for the low-temperature performance of energy storage systems. Lithium-metal batteries are the most promising energy storage systems. Lithium-metal anodes have the merits of high capacity and low potential. However, at low temperatures, especially sub-zero, the formation of lithium dendrites seriously hinders their applications. Herein, distinct from the traditional strategies of separating lithium metal from oxygen substances, we propose a new strategy to suppress dendrites by exposing lithium metal to air for short periods to generate a controlled oxidative protective layer in situ that is compact, homogeneous and mainly composed of Li3N, Li2O, LiOH and Li2CO3. Symmetrical and full cells are assembled. The air-pretreated Li metal symmetrical cell exhibits an excellent lifespan of up to 4500 h (1 mA cm-2) at 30 °C and also shows a smaller voltage polarization of 20 mV at 1.0 mA cm-2 at -20 °C. Importantly, the full cell using the air-pretreated Li metal as an anode and NCM811 as a cathode can charge-discharge normally at -20 and -40 °C. This work provides an efficient and facile approach for developing superior lithium-metal batteries for future utilization at a wide range of temperatures.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
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