Redox-active polymers as organic electrode materials for sustainable supercapacitors

Zhang, Xiaofang; Xiao, Zongying; Liu, Xufei; Peng, Mei Mei; Yang, Yingkui

doi:10.1016/j.rser.2021.111247

Cited by 56 publications

(40 citation statements)

References 238 publications

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“…This low electrical conductivity might result in reduced utilization of active sites which in turn leads to poor rate performance. Studies are still performed by many researchers to overcome this barrier and some of the promising studies showed that this low electrical conductivity problem can be reduced with the help of ingeniously molecular design [264].…”

Section: Redox Polymersmentioning

confidence: 99%

Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

et al. 2022

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For hybrid electric vehicles, supercapacitors are an attractive technology which, when used in conjunction with the batteries as a hybrid system, could solve the shortcomings of the battery. Supercapacitors would allow hybrid electric vehicles to achieve high efficiency and better power control. Supercapacitors possess very good power density. Besides this, their charge-discharge cycling stability and comparatively reasonable cost make them an incredible energy-storing device. The manufacturing strategy and the major parts like electrodes, current collector, binder, separator, and electrolyte define the performance of a supercapacitor. Among these, electrode materials play an important role when it comes to the performance of supercapacitors. They resolve the charge storage in the device and thus decide the capacitance. Porous carbon, conductive polymers, metal hydroxide, and metal oxides, which are some of the usual materials used for the electrodes in the supercapacitors, have some limits when it comes to energy density and stability. Major research in supercapacitors has focused on the design of stable, highly efficient electrodes with low cost. In this review, the most recent electrode materials used in supercapacitors are discussed. The challenges, current progress, and future development of supercapacitors are discussed as well. This study clearly shows that the performance of supercapacitors has increased considerably over the years and this has made them a promising alternative in the energy sector.

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Section: Redox Polymersmentioning

confidence: 99%

Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

et al. 2022

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“…The use of redox electrode materials is critical in developing hybrid supercapacitors. But because of their fundamental properties, such as the low conductivity of metal oxides and poor mechanical strength of conducting polymers, it is difficult to make widespread use of these materials without significant effort and expense [30–32] . Figure 2 shows classification of materials for supercapacitor applications from zero‐dimensional (0D) to three‐dimensional (3D) structures.…”

Section: Components and Types Of Supercapacitorsmentioning

confidence: 99%

Construction Building Materials as a Potential for Structural Supercapacitor Applications

Basha

Shah

Ahmad

et al. 2022

The Chemical Record

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Emerging demands to achieve zero carbon emissions and develop renewable energy resources necessitate the development of appropriate energy storage systems. To achieve this, several alternatives to conventional energy storage devices, such as Li‐ion batteries or capacitors to more sustainable and scalable energy storage systems, are being explored. Supercapacitors, possess unique characteristics that include high power, long life, and environmental‐friendly design. They may be used to bridge the energy‐power gap between typical capacitors and fuel cells/batteries. Recently, structural supercapacitors being capable of storing electrochemical energy besides bearing mechanical load have caught the attention of researchers. As such, efforts have been made worldwide to study both the fundamental and applied aspects of structural supercapacitors. Further, the possibility of using construction materials for interdisciplinary applications is being studied because they are relatively cheap and easily available. Thus, construction materials can be considered as potential candidates for the development of structural supercapacitors. Herein an overview on the use of construction materials, such as Portland cement concrete, geopolymer concrete, and bricks, as a component of structural supercapacitors has been presented.

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“…Although various research groups worldwide have constructed flexible supercapacitors using different methods, further research necessities to increase their performance for practical applications. The main hindrances for the electrode are smooth surfaces, limited flexibility, low surface area with porosity, and more contact resistance between the electroactive materials and the current collector leading to low device performance. ,− Therefore, further research requires to address those limitations and to improve the output performance. Paper-based supercapacitors have provoked considerable attention due to their lightweight, small size, flexibility, and ease of integration with textile technology for versatile applications. ,,− However, the previously reported paper-based supercapacitors usually involve complex processes, usage of binder and conductive additives, and meet possible structural instabilities. ,,− Hence, further research requires to address those limitations and improve the output performance.…”

Section: Introductionmentioning

confidence: 99%

Flexible, Lightweight, and Ultrabendable RuO₂–MnO₂/Graphite Sheets for Supercapacitors

et al. 2022

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In the present work, we have introduced lightweight, ultrabendable, rough graphite sheets on a polyimide tape substrate as a current collector. The flexible current collector was fabricated by the peel-off method. The as-prepared graphite-sheetcoated polyimide substrate is ultraflexible (bendable, rollable, and twistable), thin, and lightweight, has better conductivity, high mechanical durability, and ease of fabrication, and is cost-effective, rough, and environment friendly. The fabricated flexible current collector could be directly used as the substrate for constructing RuO 2 −MnO 2 /graphite flexible supercapacitors. The as-prepared electrode delivered a maximum gravimetric capacitance of 183 F g −1 (73.5 mF cm −2 ) at a current density of 1 A g −1 with better rate capability and 96% capacitance retention (after 5000 cycles). The better electrochemical performance of the electrode is due to the rough surface and good electrical conductivity of the current collector leads to the better attachment of active material and rapid ions/electron transfer.

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Redox-active polymers as organic electrode materials for sustainable supercapacitors

Cited by 56 publications

References 238 publications

Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

Construction Building Materials as a Potential for Structural Supercapacitor Applications

Flexible, Lightweight, and Ultrabendable RuO₂–MnO₂/Graphite Sheets for Supercapacitors

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Redox-active polymers as organic electrode materials for sustainable supercapacitors

Cited by 56 publications

References 238 publications

Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

Construction Building Materials as a Potential for Structural Supercapacitor Applications

Flexible, Lightweight, and Ultrabendable RuO2–MnO2/Graphite Sheets for Supercapacitors

Contact Info

Product

Resources

About

Flexible, Lightweight, and Ultrabendable RuO₂–MnO₂/Graphite Sheets for Supercapacitors