کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10267316 | 459450 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
XRD evidence for the electrochemical formation of Li+(PC)yCn- in PC-based electrolytes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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![عکس صفحه اول مقاله: XRD evidence for the electrochemical formation of Li+(PC)yCn- in PC-based electrolytes XRD evidence for the electrochemical formation of Li+(PC)yCn- in PC-based electrolytes](/preview/png/10267316.png)
چکیده انگلیسی
The reduction of graphite in propylene carbonate (PC) based electrolytes is a complex process involving solvated lithium-graphite intercalation compounds (GICs), Li+(PC)yCn-. XRD performed in situ to cyclic voltammetry allows to monitor the intercalation/de-intercalation of PC-solvated lithium into/from a crystalline graphite electrode, which is associated with up to 374% expansion of the basal plane spacing in c-direction of the graphite structure. The XRD data further allows to estimate the structure and stoichiometry of the ternary GIC: Li+(PC)yCn-, with y ⩾ 4, indicating a 3-dimensional, tetrahedral solvate shell. The stability of ternary GICs vs. reduction is addressed in view of graphite exfoliation and electrode failure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 7, Issue 9, September 2005, Pages 947-952
Journal: Electrochemistry Communications - Volume 7, Issue 9, September 2005, Pages 947-952
نویسندگان
M.R. Wagner, J.H. Albering, K.-C. Moeller, J.O. Besenhard, M. Winter,