کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1411029 | 1501840 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of the passivating layer on Li[Ni0.31Co0.32Mn0.28Al0.09]O2 cathode in the overcharge state
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The passivating layer (also called the solid electrolyte interface, SEI) plays a key role in the performances of Li-ion batteries. In this work, we studied the surface reactions of Li[Ni0.31Co0.32Mn0.28Al0.09]O2 with the organic electrolyte in the overcharge state by means of FTIR, XPS, XAS, and 2D correlation analysis. The FTIR and XPS results revealed that several types of compounds are formed on the cathode surface. These results also suggest that the organic solvents are decomposed to a greater extent than the Li-salt during the overcharge state. Based on the 2D correlation analysis, we can deduce the following sequence of events: 287.0 (due to CâO) â 290.0 (due to carbonate) â 288.5 (due to CO) â 291.5 (due to CâFx) â 284.5 eV (due to CC or CH).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 974, Issues 1â3, 16 June 2010, Pages 139-143
Journal: Journal of Molecular Structure - Volume 974, Issues 1â3, 16 June 2010, Pages 139-143
نویسندگان
Yeonju Park, Nam Hoon Kim, Sung Baek Cho, Jong Myung Kim, Gwui Cheol Kim, Min Soo Kim, Sung Man Lee, In-Yong Eom, Hyun Chul Choi, Young Mee Jung,