N. Ghanbari, T. Waldmann, M. Kasper, P. Axmann, M. Wohlfahrt‐Mehrens
{"title":"Detection of Li Deposition by Glow Discharge Optical Emission Spectroscopy in Post-Mortem Analysis","authors":"N. Ghanbari, T. Waldmann, M. Kasper, P. Axmann, M. Wohlfahrt‐Mehrens","doi":"10.1149/2.0041509EEL","DOIUrl":null,"url":null,"abstract":"Glow discharge optical emission spectroscopy (GD-OES) is employed to detect and quantify Li deposition as a function of depth on graphite electrodes. Commercial cells with graphite anodes were subject to Li plating by being cycled at 5°C. A comparison is made with graphite electrodes with solid electrolyte interphase (SEI) after formation. Depth profiles of O, Li, and C show different surface effects in terms of thickness and Li content, with significantly higher Li concentration in the case of Li deposition.","PeriodicalId":11470,"journal":{"name":"ECS Electrochemistry Letters","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1149/2.0041509EEL","citationCount":"51","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ECS Electrochemistry Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1149/2.0041509EEL","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 51
Abstract
Glow discharge optical emission spectroscopy (GD-OES) is employed to detect and quantify Li deposition as a function of depth on graphite electrodes. Commercial cells with graphite anodes were subject to Li plating by being cycled at 5°C. A comparison is made with graphite electrodes with solid electrolyte interphase (SEI) after formation. Depth profiles of O, Li, and C show different surface effects in terms of thickness and Li content, with significantly higher Li concentration in the case of Li deposition.