One-step microwave synthesis of CoSb for high-performance wearable flexible supercapacitor

Abstract

The activated carbon felt with uniform loading of CoSb nanomaterials is obtained by microwave radiation. Impressively, electrochemical tests show that the capacitance value of CoSb at 1 A g[Formula: see text] is 1311.0 F g[Formula: see text], and after 20,000 cycles, the capacitance retention rate is 81.5%. The assembled asymmetric flexible capacitor has a voltage window of 1.8 V. The energy density and power density of the device are 24.3 W h Kg[Formula: see text] and 921.0 W kg[Formula: see text], respectively. The electrochemical performance of the device is not affected under bending conditions.

Electrode materials for electrochromic supercapacitors

“…On the other hand, with the rapid development and fierce competition in the automotive and construction industries, energy storage systems that are cost-effective and have the function of intelligent electronics are gaining interest [41]. iicSmart energy storage systems, such as electrochromic supercapacitors (ECSCs) could be of benefit in multiple applications due to their single-synthesis approach and lower cost [41][42][43][44][45]. With their electrochromism characteristics, ECSCs demonstrate bifunctionality through the reversible change in their optical properties in different electric potential during the charge-discharge process.…”