کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7850466 | 1508849 | 2016 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tube-like carbon for Li-ion capacitors derived from the environmentally undesirable plant: Prosopis juliflora
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
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چکیده انگلیسی
This work describes the fabrication of high-energy Li-ion hybrid electrochemical capacitors (Li-HEC) from the environmentally threatening and invasive Prosopis juliflora. The carbon derived from this acts as the positive electrode active material in organic medium. High-surface-area carbon was obtained from P. juliflora and activated using KOH at various concentrations and temperatures. Of the tested ratios, 1:2 (carbon: KOH) treated at 900 °C (KC21-900) yielded a high specific surface area (2410 m2 gâ1) and specific capacitance (â¼161 F gâ1). Then, a Li-HEC was fabricated with a homemade insertion-type Li4Ti5O12 negative electrode, delivering a maximum energy density of â¼80 W h kgâ1. In addition, the prepared Li-HEC had excellent cycleability (10000 cycles) and good capacity retention characteristics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 98, March 2016, Pages 58-66
Journal: Carbon - Volume 98, March 2016, Pages 58-66
نویسندگان
Palanichamy Sennu, Hyun-Jun Choi, Seul-Gi Baek, Vanchiappan Aravindan, Yun-Sung Lee,