کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7739369 | 1497987 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical activity of carbon blacks in LiPF6-based organic electrolytes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrochemical activity of carbon blacks in LiPF6-based organic electrolytes Electrochemical activity of carbon blacks in LiPF6-based organic electrolytes](/preview/png/7739369.png)
چکیده انگلیسی
Electrochemical behavior of carbon black (CB) additives in 1Â M LiPF6 EC/DEC (3:7Â vol.) electrolyte in the operation potential range of positive electrodes in Li-ion cells was investigated. Various carbon blacks display noticeable electrochemical activity towards PF6â intercalation and electrolyte oxidation at potentials >4.0Â V vs. Li/Li+. In situ X-ray diffraction, Raman spectroscopy, and ex situ scanning electron microscopy and Fourier Transform Infrared (FTIR) spectroscopy showed that repetitive intercalation/deintercalation of PF6â anions leads to structural alteration and degradation of carbon black nanoparticles. The mechanism of these interfacial processes on CB electrodes and their implications for electrochemical performance of high-voltage Li-ion electrodes during long-term cycling is evaluated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 245, 1 January 2014, Pages 739-744
Journal: Journal of Power Sources - Volume 245, 1 January 2014, Pages 739-744
نویسندگان
JarosÅaw Syzdek, Marek Marcinek, Robert Kostecki,