کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1289183 | 973290 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improved electrochemical properties of BiOF-coated 5 V spinel Li[Ni0.5Mn1.5]O4 for rechargeable lithium batteries
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The electrochemical properties of BiOF-coated 5 V spinel Li[Ni0.5Mn1.5]O4 were investigated at elevated temperatures (55 °C). As observed by scanning and transmission electron microscopy, BiOF nanolayers with ∼10 nm thickness were coated on the surface of Li[Ni0.5Mn1.5]O4. The BiOF coating layer protected the surface of the active materials from HF generated by the decomposition of LiPF6 in the electrolyte during electrochemical cycling. The dissolution of transition metal elements was also suppressed upon cycling. Therefore, the capacity retention of the BiOF-coated Li[Ni0.5Mn1.5]O4 was obviously improved compared to the pristine Li[Ni0.5Mn1.5]O4 at 55 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 195, Issue 7, 2 April 2010, Pages 2023–2028
Journal: Journal of Power Sources - Volume 195, Issue 7, 2 April 2010, Pages 2023–2028
نویسندگان
Han-Byeol Kang, Seung-Taek Myung, Khalil Amine, Sung-Man Lee, Yang-Kook Sun,