کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
180525 | 459382 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lithia formation mechanism in tin oxide anodes for lithium–ion rechargeable batteries
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
The lithia formation mechanism in tin oxide anode is investigated using electrochemical measurements and Auger spectroscopy. Based on the charge/discharge capacities for SnO electrode, the atomic ratio of Li to O in lithia is less than 2 at the discharge capacity of 400 mAh/g (∼0.9 V). The derivative capacity plots show that the irreversible reaction occurs throughout the entire discharge to 0 V, and the atomic ratio of Li to O is about 1 at ∼0.8 V and 2 at 0 V. Auger spectroscopy analysis also confirms that the atomic ratio of Li to O approaches to 2 only when discharged to 0 V. Thus, Li2O appears to have formed at 0 V in the first discharge, not ∼0.8 V as reported previously, such that the initial lithia composition is more like Li2O2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 11, Issue 11, November 2009, Pages 2125–2128
Journal: Electrochemistry Communications - Volume 11, Issue 11, November 2009, Pages 2125–2128
نویسندگان
Young-Jun Kim, Hyukjae Lee, Hun-Joon Sohn,