کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
191975 | 459732 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural characterization and electrochemical performance of lithium trivanadate synthesized by microwave sol–gel method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
The Li1+xV3O8 material was successfully synthesized at 450 °C in short sintering duration by microwave sol–gel route. X-ray diffraction suggests oxygen defects in the lattice. Based on Randles–Sevcik formula, cyclic voltammograms measurements were conducted to measure Li+ ion diffusion coefficient. The material exhibits high discharge capacity of 250 mA g−1 at 0.2 mA/cm2 after 30 cycles in the range of 2.0–4.0 V. Alternating current impedance tests show that the growth of the charge transfer resistance at 0.4 mA/cm2 is more rapid than that of at 0.2 mA/cm2 as the galvanostatical charge–discharge continues.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 54, Issue 20, 1 August 2009, Pages 4613–4619
Journal: Electrochimica Acta - Volume 54, Issue 20, 1 August 2009, Pages 4613–4619
نویسندگان
Feng Wu, Lian Wang, Chuan Wu, Ying Bai,