کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1500257 | 993340 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In-situ observations of lithiation/de-lithiation induced graphite damage during electrochemical cycling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Damage that occurs on graphite electrode surfaces during electrochemical cycling, simulating lithium-ion battery conditions, was observed in-situ using a digital microscope. Microscopical evidence revealed particle removal during the de-lithiation stage that continued until the potential difference, exerted on graphite, reduced beyond a critical value. The rate of graphite particle loss increased at a lower voltage scan rate. Experiments, initiating from the peak voltage, promoted formation of a surface film on graphite which reduced graphite degradation during the course of lithiation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 64, Issue 2, January 2011, Pages 165–168
Journal: Scripta Materialia - Volume 64, Issue 2, January 2011, Pages 165–168
نویسندگان
Sandeep Bhattacharya, A. Reza Riahi, Ahmet T. Alpas,