کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760283 | 1498046 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanoparticulate coatings for enhanced cyclability of LiCoO2 cathodes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Surface modification as a method for enhancing the cyclability of LiCoO2 cathodes is reviewed. The performances of TiO2 and ZrO2, and their mixed oxide, ZrTiO4, as coating materials, are compared. Coating techniques such as sol-gel and mechano-thermal processes are described. Structural data and morphology of the oxide-coated LiCoO2 are correlated with electrochemical behavior. Their enhanced cyclability is attributed to the suppression of the cycle-limiting phase transitions accompanying the charge-discharge processes. The higher cyclability of the mixed oxide-coated cathodes over those coated with the corresponding individual oxides is also demonstrated. It is also shown that the nature of the core material and the sol-gel precursors for the coatings play a definitive role in the electrochemical behavior of the coated cathode materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 65-70
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 65-70
نویسندگان
George Ting-Kuo Fey, Cheng-Zhang Lu, Jiun-Da Huang, T. Prem Kumar, Yu-Chen Chang,