کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7732030 | 1497944 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of charge transfer kinetics of Li-Intercalation in LiFePO4
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Investigation of charge transfer kinetics of Li-Intercalation in LiFePO4 Investigation of charge transfer kinetics of Li-Intercalation in LiFePO4](/preview/png/7732030.png)
چکیده انگلیسی
Recent studies point out contradictions between classical Butler-Volmer kinetics and the charge transfer kinetics of lithium intercalation in host materials. In this work the charge transfer kinetics of lithium intercalation in LiFePO4 are investigated using current controlled electrochemical impedance spectroscopy with varying amplitudes. The results point out a significant impact of ohmic and diffusion contributions to the total overpotential which is normally extracted from constant current charging - discharging experiments to determine Tafel-plots, exchange currents and charge transfer coefficients. By the accurate separation of the activation overpotential from the total overpotential the authors are able to show that the charge transfer kinetics of lithium intercalation in LiFePO4 perfectly obey the Butler-Volmer equation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 288, 15 August 2015, Pages 115-120
Journal: Journal of Power Sources - Volume 288, 15 August 2015, Pages 115-120
نویسندگان
C. Heubner, M. Schneider, A. Michaelis,