کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1556312 | 999183 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and Electrochemical Performance of Nano-Co3O4 Anode Materials from Spent Li-Ion Batteries for Lithium-Ion Batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
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چکیده انگلیسی
A hydrometallurgical process for the recovery of cobalt oxalate from spent lithium-ion batteries was used to recycle cobalt compound by using alkali leaching, reductive acid leaching and chemical deposition of cobalt oxalate. The recycled cobalt oxalate was used to synthesize nano-Co3O4 anode material by sol-gel method. The samples were characterized by thermal gravity analysis and differential thermal analysis (TGA/DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and charge/discharge measurements. The influence of molar ratio of Co2+ to citric acid and calcination temperature on the structure and electrochemical performance of nano-Co3O4 was evaluated. As the molar ratio of Co2+ to citric acid is 1:1, the face-centered cubic (fcc) Co3O4 powder shows the discharge capacity of 760.9 mA h gâ1, the high coulombic efficiency of 99.7% in the first cycle at the current density of 125 mA gâ1, and the excellent cycling performance with the reversible capacity of 442.3 mA h gâ1 after 20 cycles at the current density of 250 mA gâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Science & Technology - Volume 29, Issue 3, March 2013, Pages 215-220
Journal: Journal of Materials Science & Technology - Volume 29, Issue 3, March 2013, Pages 215-220
نویسندگان
Chuanyue Hu, Jun Guo, Jin Wen, Yangxi Peng,