Examination of hybrid electrode material for energy storage device supercapacitor under various electrolytes

IF 5.5 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Carbon Letters Pub Date : 2024-04-02 DOI:10.1007/s42823-024-00713-5

Joselene Suzan Jennifer Patrick, Niranjana Subrayapillai Ramakrishna, Muthupandi Sankar, Madhavan Joseph, Victor Antony Raj Moses, Shanmuga Sundar Saravanabhavan, Muthukrishnaraj Appusamy, Manikandan Ayyar

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Abstract

Energy storage is one of the leading problems being faced globally, due to the population explosion in recent times. The conventional energy sources that are available are on the verge of extinction, hence researchers are keen on developing a storage system that will face the upcoming energy needs. Supercapacitors, also known as ultracapacitors or electrochemical capacitors, are advanced energy storage devices characterised by high power density and rapid charge–discharge cycles. Unlike traditional batteries, supercapacitors store energy through electrostatic separation, offering quick energy release and prolonged operational life. They hold exceptional performance in various applications, from portable electronics to electric vehicles, where their ability to deliver bursts of energy efficiently complements or replaces conventional energy storage solutions. Ongoing research focuses on enhancing energy density and overall efficiency, positioning supercapacitors as pivotal components in the evolving landscape of energy storage technologies. A novel electrode material of NiO/CuO/Co₃O₄/rGO was synthesized which when used as a supercapacitor, the highest value of C_S is 873.14 F/g which is achieved for a current density of 1 A/g under with an energy density of 190 Wh/kg and the highest power density of 2.5 kW/kg along with 87.3% retention after 5000 GCD cycles under 1 M KOH.

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各种电解质下储能装置超级电容器混合电极材料的研究

由于近代人口激增，能源储存成为全球面临的主要问题之一。现有的传统能源濒临灭绝，因此研究人员热衷于开发一种能满足未来能源需求的存储系统。超级电容器又称超级电容器或电化学电容器，是一种先进的能源存储设备，具有功率密度高、充放电周期短的特点。与传统电池不同，超级电容器通过静电分离来储存能量，具有能量释放快、运行寿命长的特点。从便携式电子产品到电动汽车，超级电容器在各种应用中都具有卓越的性能，它们能够有效地提供突发能量，补充或取代传统的能量存储解决方案。目前的研究重点是提高能量密度和整体效率，使超级电容器成为不断发展的储能技术中的关键部件。我们合成了一种由 NiO/CuO/Co3O4/rGO 组成的新型电极材料，将其用作超级电容器时，在电流密度为 1 A/g 的条件下，CS 的最高值为 873.14 F/g，能量密度为 190 Wh/kg，最高功率密度为 2.5 kW/kg，在 1 M KOH 条件下进行 5000 次 GCD 循环后，CS 的保持率为 87.3%。

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来源期刊

Carbon Letters CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

7.30

自引率

20.00%

发文量

118

期刊介绍： Carbon Letters aims to be a comprehensive journal with complete coverage of carbon materials and carbon-rich molecules. These materials range from, but are not limited to, diamond and graphite through chars, semicokes, mesophase substances, carbon fibers, carbon nanotubes, graphenes, carbon blacks, activated carbons, pyrolytic carbons, glass-like carbons, etc. Papers on the secondary production of new carbon and composite materials from the above mentioned various carbons are within the scope of the journal. Papers on organic substances, including coals, will be considered only if the research has close relation to the resulting carbon materials. Carbon Letters also seeks to keep abreast of new developments in their specialist fields and to unite in finding alternative energy solutions to current issues such as the greenhouse effect and the depletion of the ozone layer. The renewable energy basics, energy storage and conversion, solar energy, wind energy, water energy, nuclear energy, biomass energy, hydrogen production technology, and other clean energy technologies are also within the scope of the journal. Carbon Letters invites original reports of fundamental research in all branches of the theory and practice of carbon science and technology.