期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 167, 期 12, 页码 -出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1945-7111/abaf72
关键词
Supercapacitors; Electrochemical synthesis; nanowires
资金
- Science and Engineering Research Board (SERB), India [EEQ/2016/000119]
Herein, a high performance Ni-Fe composite nanowires array based supercapacitor anode was fabricated via electrochemical deposition using polycarbonate membrane. The synthesized nanowires demonstrate outstanding electrochemical performance with good specific capacitance of 1255.17 Fg(-1)at 3 Ag(-1)and 80% capacitive retention at the end of 5000 charge-discharge cycles. In addition, an asymmetrical supercapacitor (Ni-Zn//Ni-Fe) was also fabricated that demonstrates 95.23% of capacitive retention after 2000 cycles. The fabricated supercapacitor device showed energy density of 63.62 Wh kg(-1)at a power density of 0.64 KW kg(-1). Further, the practical performance of a single asymmetrical supercapacitor device was demonstrated by lighting up a 2.2 V green LED. These results reveal the potential of the synthesized nanowires in potable energy storage gadgets.
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