کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760227 | 1498044 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structure, morphology and electrochemical properties of LiNi0.5Mn0.5 â xCoxO2 prepared by solid state reaction
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
A series of LiNi0.5Mn0.5 â xCoxO2 (0 â¤Â x â¤Â 0.5) compounds was prepared by a solid state reaction, and their structural, morphological and electrochemical characteristics were also investigated. Co doping suppresses the formation of the impurity phase, NiO, and improves the crystallinity of the compounds. Moreover, the unequilavent substitution of cobalt for manganese would give rise to the increase in the average valence of nickel, thereby shrinkage in the lattice volume and improvement of the electrochemical properties. LiNi0.5Mn0.2Co0.3O2 shows a high reversible capacity as well as an excellent rate capability in 3-4.6 V.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 148, 15 September 2005, Pages 85-89
Journal: Journal of Power Sources - Volume 148, 15 September 2005, Pages 85-89
نویسندگان
Decheng Li, Yuki Sasaki, Masaya Kageyama, Koichi Kobayakawa, Yuichi Sato,