کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5149310 | 1497876 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lithium loss in the solid electrolyte interphase: Lithium quantification of aged lithium ion battery graphite electrodes by means of laser ablation inductively coupled plasma mass spectrometry and inductively coupled plasma optical emission spectroscopy
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کلمات کلیدی
Solid electrolyte interphase - Interphase الکترولیت جامدgraphite anode - آندره گرافیتInductively coupled plasma optical emission spectroscopy - اسپکتروسکوپ نوری نوری پلاسما به صورت القایی متصل شده استGraphite intercalation compounds - ترکیبات تکه ای گرافیتیLaser ablation inductively coupled plasma mass spectrometry - طیف سنجی جرمی پلاسما با استفاده از القایی لیزر
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The method is applied to aged graphite electrodes in order to determine the lithium immobilization (= “Li loss”) in the solid electrolyte interphase after the first cycle of formation. For this, different samples including a reference sample are created to obtain varying thicknesses of the SEI covering the electrode particles. By applying defined charging voltages, an initial lithiation process is performed to obtain specific graphite intercalation compounds (GICs, with target stoichiometries of LiC30, LiC18, LiC12 and LiC6). Afterwards, the graphite electrode is completely discharged to obtain samples without mobile, thus active lithium in its lattice. Taking the amount of lithium into account which originates from the residues of the LiPF6 (dissolved in the carbon components containing electrolyte), it is possible to subtract the amount of lithium in the SEI.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 356, 15 July 2017, Pages 47-55
Journal: Journal of Power Sources - Volume 356, 15 July 2017, Pages 47-55
نویسندگان
Timo Schwieters, Marco Evertz, Maximilian Mense, Martin Winter, Sascha Nowak,