New‐Generation Materials for Flexible Supercapacitors

Lokhande, P.E.; Chavan, Umesh; Bhosale, Suraj; Kalam, Amol; Deokar, Sonal

doi:10.1002/9781119711469.ch11

Cited by 26 publications

(5 citation statements)

References 126 publications

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“…In the twenty-first century, lightweight, portable, miniaturized, and flexible gadgets have attracted a lot of interest among the above-mentioned applications. Designing electrode materials with excellent electrical ability, eminent mechanical durability, and the longest possible span of continuous performance to fulfill the requirements of such applications 2 of 16 is a substantial challenge at present [10][11][12][13]. Hence, researchers globally have focused on conducting thorough investigations into the development of the materials needed to meet the current demands.…”

Section: Introductionmentioning

confidence: 99%

Cationic-Surfactant (CTAB) Assisted Preparation of 2D Graphitic Carbon Nitride (g-C3N4) Sheets Advances Supercapacitive Performance

Mane,

Teli,

Beknalkar

et al. 2024

Crystals

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The distinct physicochemical characteristics of metal-free graphitic carbon nitride (g-C3N4) are gaining interest in various fields, including energy storage and conversion. However, the electrochemical performance of this material is constrained, owing to its minimal surface area. Incorporating a surfactant is one of the ways to resolve the issue of surface area and therefore improve the electrochemical performance of g-C3N4. This research delves into a method aimed at improving the supercapacitive capabilities of 2D g-C3N4 sheets through the implementation of a cationic surfactant, cetyltrimethylammonium bromide (CTAB). Electrochemical studies reveal that the CTAB-assisted g-C3N4 sheets exhibit remarkable improvements in specific capacitance, cyclic stability, and comparative rate capability in relation to pristine g-C3N4. The specific capacitance of g-C3N4 with CTAB exceeds about 28%, which gives 162. 8 F g−1. This value is 117.7 F g−1 for electrode material without CTAB at 0.5 mA cm−2. This improved electrochemical performance can be credited to the heightened surface area, improved electronic conductivity, and optimized charge transfer kinetics facilitated by the CTAB surfactant. We aim to emphasize the enhancement of the overall performance of g-C3N4-based supercapacitors for advanced energy storage systems.

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Section: Introductionmentioning

confidence: 99%

Cationic-Surfactant (CTAB) Assisted Preparation of 2D Graphitic Carbon Nitride (g-C3N4) Sheets Advances Supercapacitive Performance

Mane,

Teli,

Beknalkar

et al. 2024

Crystals

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“…Out of these V-VI compounds semiconductor, bismuth sulphide (Bi 2 S 3 ) is a promising candidate for optoelectronic devices as its band gap of 1.7 eV in bulk material that lies in the visible solar energy spectrum and could be increase to higher energy by reducing the particle or grain size [5][6][7]. Several researchers have reported for the preparation of nanocrystalline Bi 2 S 3 thin films using different techniques such as vacuum evaporation [8][9][10][11], cathodic electro-deposition [12], anodic electrodeposition [13], hot-wall method [14], solution gas interface [15], spray deposition [16][17] etc. Among the above various techniques of thin film preparation, we preferred chemical bath deposition, which is simple, economic, suited for a large area deposition and does not required for sophisticated instrument.…”

Section: Introductionmentioning

confidence: 99%

Optical and electrical properties of Ni+2 doped nanocrystalline Bi2S3 thin films prepared by chemical bath deposition method

Hussain,

Saikia,

Devi

et al. 2024

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Nickel (Ni+2) doped nanocrystalline Bi2S3 thin films are deposited on the glass substrate from the solutions containing Bismuth Nitrate, Ethylenediamine Tetraacetic acid (EDTA) and Thioacetamide at a bath deposition temperature of 318K. The optical, surface morphological and electrical properties of Ni-doped Bi2S3 thin films prepared at three different doping concentration are investigate by using ultraviolet–visible transmission spectra (UV–Vis), Scanning electron microscopy (SEM), Energy Dispersive X-ray (EDAX) and thermo-e.m.f. techniques. The optical band gap energies are found in between 2.32-2.43 eV. The SEM images show that the prepared films are continuous, dense and distributed over the entire area with good uniformity. The electrical conductivity of the films are in the order of 10-2 Ω-1 m-1 . The films are n-type as determined from the Hot Probe method. Photoconductivity studies reveal that photocurrent increases with the increase in Ni doping concentrations. Due to the absorption of photons, free electron-hole pairs (EHP) are produce.

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“…Due to power density and cycle life limitations, lithium-ion batteries encounter new technical bottlenecks in large-scale power demand applications [4][5][6]. Compared with the lithium-ion battery, a supercapacitor has a higher power density, shorter charging time, longer cycle life, and better meeting the power demand of various electronic equipment [2,4,5,[7][8][9][10][11][12][13]. However, the disadvantage of the low energy density of the supercapacitor cannot be ignored [4].…”

Section: Introductionmentioning

confidence: 99%

Study on direct parallel charging of lithium-ion battery and supercapacitor

Dong

Deng

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Currently, there are few studies on hybrid system charging, and the existing ones rely on many power electronic components to charge lithium-ion battery and supercapacitor, respectively. This paper mainly focuses on the direct parallel charging of lithium-ion battery and supercapacitor, which has simple structure and low cost. However, the capacity of the hybrid system can not be fully utilized due to the unreasonable current distribution during charging. This paper proposes a method that improves the charging effect: constant current charging under fine tuning the resistance distribution of battery branch and supercapacitor branch (CCFTR). The results show that although the charging time is increased slightly with the CCFTR, the charging capacity can increase significantly. Compared with the untreated constant current charging (CC), the charging time is only prolonged by 6.77 minutes with the CCFTR (50mΩ) at 22A (2.75C), but the charging capacity is increased by 48.4%, reaching 95.1% of the rated capacity. And the CCFTR can dramatically prolong the battery life. The effect is better under higher current. Compared to the CC with the same charging current, the CCFTR can extend the battery life by 11.37% at 2.75C and 26.02% at 3.75C.

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New‐Generation Materials for Flexible Supercapacitors

Cited by 26 publications

References 126 publications

Cationic-Surfactant (CTAB) Assisted Preparation of 2D Graphitic Carbon Nitride (g-C3N4) Sheets Advances Supercapacitive Performance

Cationic-Surfactant (CTAB) Assisted Preparation of 2D Graphitic Carbon Nitride (g-C3N4) Sheets Advances Supercapacitive Performance

Optical and electrical properties of Ni+2 doped nanocrystalline Bi2S3 thin films prepared by chemical bath deposition method

Study on direct parallel charging of lithium-ion battery and supercapacitor

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