کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1602405 | 1515906 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical characterization of MnO2 as the cathode material for a high voltage hybrid capacitor
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrochemical characterization of MnO2 as the cathode material for a high voltage hybrid capacitor Electrochemical characterization of MnO2 as the cathode material for a high voltage hybrid capacitor](/preview/png/1602405.png)
چکیده انگلیسی
Manganese dioxide (MnO2) was prepared using the ultrasonic method. Its electrochemical performance was evaluated as the cathode material for a high voltage hybrid capacitor. And the specific capacitance of the MnO2 electrode reached 240 F.gâ1. The new hybrid capacitor was constructed, combining Al/Al2O3 as the anode and MnO2 as the cathode with electrolyte for the aluminum electrolytic capacitor to solve the problem of low working voltage of a supercapacitor unit. The results showed that the hybrid capacitor had a high energy density and the ability of quick charging and discharging according to the electrochemical performance test. The capacitance was 84.4 μF, and the volume and mass energy densities were greatly improved compared to those of the traditional aluminum electrolytic capacitor of 47 μF. The analysis of electrochemical impedance spectroscopy (EIS) showed that the hybrid capacitor had good impedance characteristics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Minerals, Metallurgy and Materials - Volume 16, Issue 5, October 2009, Pages 576-580
Journal: International Journal of Minerals, Metallurgy and Materials - Volume 16, Issue 5, October 2009, Pages 576-580
نویسندگان
Jian-ling Li, Fei Gao, Yan Jing, Rui-ying Miao, Ke-zhong Wu, Xin-dong Wang,