Helical fluorinated carbon nanotubes/iron(iii) fluoride hybrid with multilevel transportation channels and rich active sites for lithium/fluorinated carbon primary battery
{"title":"Helical fluorinated carbon nanotubes/iron(iii) fluoride hybrid with multilevel transportation channels and rich active sites for lithium/fluorinated carbon primary battery","authors":"Gaobang Chen, Fengxin Cao, Zexiao Li, Jianan Fu, Baoshan Wu, Yifan Liu, Xian Jian","doi":"10.1515/ntrev-2023-0108","DOIUrl":null,"url":null,"abstract":"Abstract Lithium/fluorinated carbon (Li/CF x ) primary battery is a promising energy supply device with high energy density. However, poor electrochemical capabilities such as the initial voltage delay phenomenon and the large polarization have obstructed their applications. The electrochemical performance of CF x primarily depends on the feature of the carbon source and the corresponding fluorination technique. Herein, we developed a high energy density Li/CF x battery by employing helical carbon nanotubes (HCNTs) as the carbon source. In detail, the precise control of the fluorination temperature was designed at the range of 250–400°C to tune the F/C ratio of CF x . Furthermore, the high F/C ratio of fluorinated HCNTs (F-HCNTs) reaches about 1.43, which surpasses the highest theoretical value in fluorinated crystalline carbon materials. Due to the active rich fluorination sites provided by the periodical insertion of the carbon pentacyclic (C5) and heptacyclic (C7) rings, HCNTs exhibited a defect-rich feature and F-HCNTs have a nodular shape. These features favor to enhance the transport of lithium ions and allow more C–F bonds to react with lithium ions, leading to a high energy density of 2133.13 W h/kg. This novel material offers an alternative approach for lithium primary battery being great potential in actual applications.","PeriodicalId":18839,"journal":{"name":"Nanotechnology Reviews","volume":" ","pages":""},"PeriodicalIF":6.1000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanotechnology Reviews","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1515/ntrev-2023-0108","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract Lithium/fluorinated carbon (Li/CF x ) primary battery is a promising energy supply device with high energy density. However, poor electrochemical capabilities such as the initial voltage delay phenomenon and the large polarization have obstructed their applications. The electrochemical performance of CF x primarily depends on the feature of the carbon source and the corresponding fluorination technique. Herein, we developed a high energy density Li/CF x battery by employing helical carbon nanotubes (HCNTs) as the carbon source. In detail, the precise control of the fluorination temperature was designed at the range of 250–400°C to tune the F/C ratio of CF x . Furthermore, the high F/C ratio of fluorinated HCNTs (F-HCNTs) reaches about 1.43, which surpasses the highest theoretical value in fluorinated crystalline carbon materials. Due to the active rich fluorination sites provided by the periodical insertion of the carbon pentacyclic (C5) and heptacyclic (C7) rings, HCNTs exhibited a defect-rich feature and F-HCNTs have a nodular shape. These features favor to enhance the transport of lithium ions and allow more C–F bonds to react with lithium ions, leading to a high energy density of 2133.13 W h/kg. This novel material offers an alternative approach for lithium primary battery being great potential in actual applications.
期刊介绍:
The bimonthly journal Nanotechnology Reviews provides a platform for scientists and engineers of all involved disciplines to exchange important recent research on fundamental as well as applied aspects. While expert reviews provide a state of the art assessment on a specific topic, research highlight contributions present most recent and novel findings.
In addition to technical contributions, Nanotechnology Reviews publishes articles on implications of nanotechnology for society, environment, education, intellectual property, industry, and politics.