کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1285981 973169 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In situ measurement of lithium mass transfer during charging and discharging of a Ni–Sn alloy electrode
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
In situ measurement of lithium mass transfer during charging and discharging of a Ni–Sn alloy electrode
چکیده انگلیسی

The charging (lithiation) and discharging (delithiation) of a Ni–Sn alloy electrode was examined by means of holographic interferometry and laser scanning confocal microscopy (LSCM). The developing concentration profile of Li+ ion during discharging (delithiation) of the Ni–Sn alloy electrode agreed reasonably well with the prediction based on transient diffusion theory, indicating that the cell configuration successfully suppressed natural convection due to the electrochemical reaction. The morphological variation of Ni–Sn alloy electrode during charge/discharge cycle could be observed very clearly by in situ LSCM. It was found that the contraction of active material during the discharge (delithiation) initiates cracks in the Ni–Sn alloy electrode.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 174, Issue 2, 6 December 2007, Pages 668–672
نویسندگان
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