分析化学2024，Vol.52Issue(7)：1012-1019,8.DOI:10.19756/j.issn.0253-3820.221294
碳纳米管自交织薄膜载网的构建及用于电池中的沉积分析
Carbon Nanotubes Self-Interlacing Transmission Electron Microscopy Grids for Electrodeposition Characterizations in Batteries
摘要
Abstract
Transmission electron microscopy(TEM)is considered as an important characterization tool for revealing morphology of materials and an indispensable strategy for studying the mechanisms of charge-discharge process in battery.TEM samples needs be less than 0.1 μm thick,which means electrodeposited materials must undergo pre-treatment processes such as focusing ion beam etching,ultra-thin slicing,or ultrasonic dispersion before they can be observed via TEM.However,such treatments cause structure changes,and what real formed in electrodes is hard to estimate.In this work,a self-interlacing film layer composed of carbon nanotubes(CNTs)was fabricated on a copper grid through blade coating.A novel TEM grid was produced by optimizing the interlacing film's thickness and covering area through adjusting the interlacing state of various concentrations of CNTs.Utilizing the novel TEM grid as the battery's positive electrode,electrode deposits were acquired and subjected to TEM analysis to generate high-definition microstructure images of the electrode surface.This process provided new insights into sample preparation for investigating the deposition/stripping mechanism in high-energy-density metal anodes.关键词
碳纳米管/载网/电沉积/扫描电子显微镜/透射电子显微镜Key words
Carbon nanotubes/Grid/Electrodeposition/Scanning electron microscopy/Transmission electron microscopy引用本文复制引用
陈芳,张魏栋,沈泽宇,陆盈盈..碳纳米管自交织薄膜载网的构建及用于电池中的沉积分析[J].分析化学,2024,52(7):1012-1019,8.基金项目
国家重点研发计划项目(No.2018YFA0209600)和浙江省分析测试项目(No.LGC22B050001)资助. Supported by the National Key R&D Program of China(No.2018YFA0209600)and the Analysis and Testing Fund of Zhejiang Province(No.LGC22B050001). （No.2018YFA0209600）
