1. Synthesis and characterization of CuO/Ni7S6 composites for application in supercapacitors.
- Author
-
Xue, Ke, Liu, Bo, Feng, Huimin, Tian, Lecheng, Ding, Juan, Ali, Maryum, Liu, Jingfeng, and Xing, Zhicai
- Subjects
ENERGY density ,SUPERCAPACITORS ,POWER density ,COPPER oxide ,POWER series ,COMPOSITE materials - Abstract
Copper oxide (CuO) is considered a promising material for pseudocapacitor electrodes in supercapacitors. In this study, binder-free CuO/Ni
7 S6 composite electrode materials were prepared on nickel foam using a two-step electrodeposition method. The test results show that the CuO/Ni7 S6 -1:1–20 composite material has the best electrochemical performance. It displays an areal capacitance of 8644.3 mF cm−2 at a current density is 1 mA cm−2 . The assembled CuO/Ni7 S6 -1:1–20‖PVDF/KOH‖CuO/Ni7 S6 -1:1–20 devices can reach a maximum energy density (Ea ) and power density (Pa ) of 112.5 μW h cm−2 and 4200 μW cm−2 respectively while retaining 58.3% of their initial capacitance after 3000 charge/discharge cycles. Two devices connected in series can power an LED lamp for up to 15 minutes. The results demonstrate that CuO/Ni7 S6 materials have significant potential for application in supercapacitors. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF