High-rate transition metal-based cathode materials for battery-supercapacitor hybrid devices

Song, Zehao; Shi, Pengfei; Li, Lin; Wan, Houzhao; Li, Tao; Zhang, Jun

doi:10.1039/d1na00523e

Cited by 23 publications

(12 citation statements)

References 196 publications

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“…Figure 2 (c) depicts the porous structure of DESTP with an average pore size of around 200 nm. The image also shows the dissection with tri ing and profound traps, which are signi cant for charge transportation and energy storage property [41,42]. This geometry enhances the electrode surface area, leading to a rise in junction area between the electrode material and the electrolyte.…”

Section: Fesem Analysismentioning

confidence: 95%

Effective utilization and characterization of carbon derived from non-biodegradable waste based electrical switches for supercapacitor applications: A green approach

VS¹,

Benitha²,

Jeyasubramanian³

et al. 2023

Preprint

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This work describes the utilization of carbon (Char) held after the slow pyrolysis of Disposed Electric Switches made of Thermoset Plastic (DESTP) as a high-capacity electrode material for supercapacitor applications. Char is prepared by pyrolysis strategy and exposed to severe milling in high energy planetary ball mill for size reduction. By suspending the pulverised DESTP in silver (Ag) nanoparticles dispersed solution obtained by reducing AgNO3 with hydrazine hydrate as a reducing agent, the DESTP is loaded with Ag nanoparticles. The Energy Dispersive X-Ray Analysis (EDAX) validates the elemental makeup of the manufactured char. The DESTP and Ag@DESTP are coated separately on a low-cost etched brass substrate, and their electrochemical charge-storage properties are investigated using an electrochemical workstation. The specific capacitance of DESTP and Ag@DESTP electrodes are discovered to be 32 Fg-1and 67 Fg-1, respectively. The fabricated electrodes provide a maximum volumetric capacitance of 93 mFcm-3and 21 mFcm-3 with a current density of 5 mA for Ag@DESTP and DESTP electrodes respectively. This work gives a great model of repurposing the e-waste advertising with good electrochemical energy storage applications.

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Section: Fesem Analysismentioning

confidence: 95%

Effective utilization and characterization of carbon derived from non-biodegradable waste based electrical switches for supercapacitor applications: A green approach

VS¹,

Benitha²,

Jeyasubramanian³

et al. 2023

Preprint

View full text Add to dashboard Cite

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“…proved performance [5,6]. The supercapacitors can be used to supply the high power density required for rapid acceleration in hybrid electric vehicles along with recovery of energy during breaking and protecting the batteries from high frequency fast charge-discharge process.…”

Section: Electrode Materialsmentioning

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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“…Supercapacitors are electrochemical energy storage devices that have the potential to replace and/or complement batteries for electronics and large-scale energy applications, due to their high power densities (higher than those of batteries) and moderate energy densities. [1][2][3][4][5][6][7][8][9][10] In the search to nd cost-effective and efficient materials for supercapacitor use, a wide range of composite materials, including polymers, [11][12][13][14][15] metal oxides [16][17][18][19][20][21][22] and suldes, [23][24][25][26][27] and higher surface area transition-metal carbides [28][29][30][31][32][33] and nitrides, [34][35][36][37] are frequently investigated due to their pseudocapacitive charge storage mechanisms involving fast and reversible faradaic redox reactions which contribute to substantially larger capacitances compared to double layer capacitors. Among this material class, vanadium nitride (VN) has been thoroughly investigated and lauded for achieving high capacitances of up to 1340 F g −1 in alkaline environments.…”

Section: Introductionmentioning

confidence: 99%

Superior cyclability of high surface area vanadium nitride in salt electrolytes

et al. 2023

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High-rate transition metal-based cathode materials for battery-supercapacitor hybrid devices

Abstract: With the rapid development of portable electronic devices, electric vehicles and large-scale grid energy storage devices, it needs to reinforce specific energy and specific power of related electrochemical devices meeting...

Cited by 23 publications

References 196 publications

Effective utilization and characterization of carbon derived from non-biodegradable waste based electrical switches for supercapacitor applications: A green approach

Effective utilization and characterization of carbon derived from non-biodegradable waste based electrical switches for supercapacitor applications: A green approach

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

Superior cyclability of high surface area vanadium nitride in salt electrolytes

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