Fabrication of high-performance asymmetric supercapacitor device based on CuS with marigold flower like framework

IF 8.9 2区 工程技术 Q1 ENERGY & FUELS
Kajal Samdhyan , Prakash Chand , Hardeep Anand
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引用次数: 0

Abstract

A solvent regulated approach was utilized for creating copper sulfide of distinct morphologies and employed as an electrode in three and two electrode configurations. X-ray diffraction, FESEM and TEM revealed the crystalline structure and marigold flower like morphology of copper sulfide in ethylene glycol. The marigold flower like CuS outperforms in terms of electrochemical performance, with an excellent capacitance of 631.2 F/g at 1 A/g of current density. Furthermore, a supercapacitor device has been constructed with a potential window of 1.4 V, exhibited 301.23 F/g of capacitance at 10 A/g. This device displays a desired 82 Wh/kg of energy density when the power density is 2.9 kW/kg. The device maintained cyclic stability of 82 % during 2500 GCD cycles at 20 A/g. Two devices connected in series light up different colours of LEDs. These favourable electrochemical results strongly suggest that the marigold flower-like CuS electrode has excellent potential for use in energy storage applications.

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来源期刊
Journal of energy storage
Journal of energy storage Energy-Renewable Energy, Sustainability and the Environment
CiteScore
11.80
自引率
24.50%
发文量
2262
审稿时长
69 days
期刊介绍: Journal of energy storage focusses on all aspects of energy storage, in particular systems integration, electric grid integration, modelling and analysis, novel energy storage technologies, sizing and management strategies, business models for operation of storage systems and energy storage developments worldwide.
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