Asymmetric supercapacitor devices based on dendritic conducting polymer and activated carbon

Potphode, Darshna; Mishra, Smita; Sivaraman, P.; Patri, M.

doi:10.1016/j.electacta.2017.01.168

Cited by 44 publications

(9 citation statements)

References 32 publications

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“…Thus the ASC showed both high energy density of power density with a coulombic efficiency of nearly 100% after 10 000 of cycling. In addition, this fully organic device containing aqueous–acidic electrolyte shows higher specific capacitance than the ASC based on carbon nanofibre and polypyrrole/nanocellulose composite electrodes reported by Tammela et al and also than the recently published work by Potphode et al based on ASC devices made of dendritic conducting polymer and activated carbon using nonaqueous electrolyte (1 m solution of TEAFB 4 in acetonitrile). In these devices cycling was recorded only up to 1000 and 500 cycles respectively.…”

Section: Resultsmentioning

confidence: 49%

Scalable Asymmetric Supercapacitors Based on Hybrid Organic/Biopolymer Electrodes

Ajjan

Vagin

Rębiś

et al. 2017

Advanced Sustainable Systems

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lately. Supercapacitor devices allow a considerable amount of stored electric energy to be delivered rapidly, giving rise to high power capability in conjunction with long cycling life and high reversibility. [4][5][6][7] Nevertheless the demand for higher energy density supercapacitors is increasing, to be used as a storage device for renewable electricity.The development of new materials that improve the efficiency of energy conversion and storage is essential for a sustainable future. [8][9][10] These materials should be renewable, biodegradable, and have low cost. [11] Lignin is the second most abundant biopolymer on Earth, and complies with these characteristics. It is the largest natural source of quinone-aromatics chemical groups that can be employed to store and deliver charges by reversible Faradaic reactions. [12,13] However, the insulating nature of lignin limits the access to these functional redox groups. Therefore, it is necessary to form hybrids with other conductive materials such as conducting polymers [14] or carbon derivatives. [15][16][17] In order to harness the potential of conducting polymers as supercapacitor electrode materials, it is critical to improve their poor long-term stability and to increase their specific capacitance and energy density by fully utilizing the pseudo-capacitive redox processes. [18][19][20] In our previous work, we have constructed electrodes with hybrid materials based on electronic polymers and lignin derivatives. We found that the best combination was poly(3,4-ethylenedioxythiophene) PEDOT/lignin with a specific capacitance of 170 F g −1 . [21] We further investigated the interpenetrating network of poly(aminoanthraquinone) (PAAQ) and PEDOT with increased specific capacitance up to 383 F g −1 . [22] The development of hybrid electrode materials formed by electroactive and conducting components enable supercapacitor devices with intrinsic high specific power and improved energy density. These devices are described as symmetric SCs (SSCs) when both electrodes are identical, and asymmetric SCs (ASCs) when the material compositions of the positive and negative electrodes are different. The optimal performance is expected for asymmetric supercapacitors, because it may be possible to extend the operating voltage window of the cell, and its energy density thus becomes greater than that of the symmetric cells, as a consequence of electrodes operating reversibly in different potential ranges. [19,[23][24][25] A trihybrid bioelectrode composed of lignin, poly(3,4-ethylenedioxythiophene) (PEDOT), and poly(aminoanthraquinone) (PAAQ) is prepared by a two-step galvanostatic electropolymerization, and characterized for supercapacitor applications. Using PEDOT/Lignin as a base layer, followed by the consecutive deposition of PAAQ, the hybrid electrode PEDOT/Lignin/PAAQ shows a high specific capacitance of 418 F g −1 with small self-discharge. This trihybrid electrode material can be assembled into symmetric and asymmetric supercapacitors. The asymmetric supercapacitor uses PED...

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Section: Resultsmentioning

confidence: 49%

Scalable Asymmetric Supercapacitors Based on Hybrid Organic/Biopolymer Electrodes

Ajjan

Vagin

Rębiś

et al. 2017

Advanced Sustainable Systems

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“…These results prove that PANI nanowire array-assisted surface oxidation can improve the specific surface area and enhance the channel, which causes ions to travel further. 39,40 Furthermore, cycling stability is another important evaluation parameter of electrode materials. The cycling stability of AOCC was measured by CV tests scanned at 100 mV/s and GCD tests at 50 mA/cm 2 .…”

Section: Resultsmentioning

confidence: 99%

Polyaniline Nanowire Array-Assisted Surface Oxidation of Carbon Cloth for Superior Flexible Solid-State Supercapacitors

Dong

Jia

et al. 2021

ACS Appl. Energy Mater.

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As an outstanding kind of flexible energy conversion device, flexible solid-state supercapacitors (FSSCs) show enormous advantages in flexible, portable, and wearable devices. The performance improvement of flexible electrodes shows a significant role in constructing high-performance FSSCs. Herein, the polyaniline (PANI) nanowire array on the surface of carbon cloth (CC) is utilized to assist the surface oxidation of CC, and the unique surface treatment process aims to improve the specific surface area and provides an abundance of heteroatoms to increase the storage of charge for high electrochemical performance. As a result, the obtained PANI nanowire array-assisted surface oxidation of CC (AOCC) exhibits optimal area capacitance (1614 mF/cm2), high rate capability (63.1% even up to 100 mA/cm2), and excellent cycling stability (105% of the original value even up to 20 000 cycles). Furthermore, flexible AOCC electrodes are explored for constructing FSSC devices, which possess high energy density (0.51 mW h/cm3) and power density (68.6 mW/cm3) and extremely good cycling stability (maintaining 93.3% of initial capacitance value after 10 000 cycles). In addition, the FSSCs demonstrate superior mechanical performances and flexibility. Therefore, AOCC is expected to be a high-performance flexible electrode in FSSCs.

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“…Among them, nano-sized conductive polymers have attracted great attention for the beneficial effect on the performance of energy density. Therefore many research works have focused on the preparation and electrochemical behaviors of conductive polymers with nanostructures [ 89 , 90 , 91 ].…”

Section: Printable Nanomaterials In Fabricating Supercapacitorsmentioning

confidence: 99%

Printable Nanomaterials for the Fabrication of High-Performance Supercapacitors

et al. 2018

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In recent years, supercapacitors are attracting great attention as one kind of electrochemical energy storage device, which have a high power density, a high energy density, fast charging and discharging, and a long cycle life. As a solution processing method, printing technology is widely used to fabricate supercapacitors. Printable nanomaterials are critical to the fabrication of high-performance supercapacitors by printing technology. In this work, the advantages of printing technology are summarized. Moreover, various nanomaterials used to fabricate supercapacitors by printing technology are presented. Finally, the remaining challenges and broad research as well as application prospects in printing high-performance supercapacitors with nanomaterials are proposed.

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Asymmetric supercapacitor devices based on dendritic conducting polymer and activated carbon

Cited by 44 publications

References 32 publications

Scalable Asymmetric Supercapacitors Based on Hybrid Organic/Biopolymer Electrodes

Scalable Asymmetric Supercapacitors Based on Hybrid Organic/Biopolymer Electrodes

Polyaniline Nanowire Array-Assisted Surface Oxidation of Carbon Cloth for Superior Flexible Solid-State Supercapacitors

Printable Nanomaterials for the Fabrication of High-Performance Supercapacitors

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