Electrolytic Double-Layer Supercapacitors Based on Sodium-Ion Systems, with Activated-Carbon Electrodes

Globa, N. I.; Shmatok, Yurii; Milovanova, O. I.; Sirosh, V. A.; Kirillov, S. А.

doi:10.1134/s1070427218020039

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…We must however mention that higher ionic conductivities, namely 1.56 mS cm -1 and 1.16 mS cm -1 , have been reported at 25°C for DwG20 and DwS25, respectively, using sodium perchlorate based carbonates electrolytes (NaClO4, 1M in EC : DMC 1:1 by volume) [19].…”

Section: Electrochemical Characterization A) Ionic Conductivitymentioning

confidence: 82%

Non-woven polyaramid porous membranes as separators for Li-ion batteries?

Martínez-Cisneros

Antonelli

Levenfeld

et al. 2021

Electrochimica Acta

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Section: Electrochemical Characterization A) Ionic Conductivitymentioning

confidence: 82%

Non-woven polyaramid porous membranes as separators for Li-ion batteries?

Martínez-Cisneros

Antonelli

Levenfeld

et al. 2021

Electrochimica Acta

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“…The value of this resistance for all the studied electrodes is quite close and is about 2 Ohm. Using the well-known equation k = l/S•R, where k is the conductivity, l is the thickness of the electrolyte layer (corresponds to the thickness of the separator -2.5•10 -3 cm), S is the electrode surface (2 cm 2 ), and R = R el , the conductivity of the electrolyte layer was calculated, which is ~0,6•10 -3 mS•cm -1 , which is close to the conductivity of the electrolyte in the layer of the Celgard 2400 separator [21].…”

Section: Introductionmentioning

confidence: 80%

“…An increase in the mass of tin sediment leads to an increase in tilt angles that are 69-73°, which indicates the presence of polarization phenomena associated with the accumulation or adsorption of charged particles on the surface of the electrode. This type of impedance curve is characteristic for ionistors in which the main electrochemical processes occur due to adsorption-de-sorption of charged particles and the absence of Faraday processes [21]. It should be noted that the source electrodes have sufficiently large resistances, which reaches several thousand Ohm.…”

Section: Introductionmentioning

confidence: 92%

Electrochemical Characteristics of Tin Films in Cycling in Lithium-Ion Batteries

et al. 2019

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Thin electrolytic fine tin sediments were obtained from pyrophosphate electrolyte under different electrolysis conditions and duration. The electrochemical characteristics of tin coatings as anode materials of lithium-ion batteries are studied using potentiodynamic and galvanostatic cycling methods. The effect of the properties of coatings, in particular their mass, on the value of specific capacitance and its stability, including during discharge with different current densities, has been established. It is shown that the studied tin sediments have high initial specific capacity that is close to theoretically possible. The maximum stability of the specific capacity during cycling is characteristic of electrodes with minimal masses of precipitation. The impedance spectra recorded for the studied electrodes in the initial state and after the first lithiation are analyzed.

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A review on electrolytes for supercapacitor device

Mendhe,

Panda

2023

Discov Mater

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Electrodes and electrolytes have a significant impact on the performance of supercapacitors. Electrodes are responsible for various energy storage mechanisms in supercapacitors, while electrolytes are crucial for defining energy density, power density, cyclic stability, and efficiency of devices. Various electrolytes, from aqueous to ionic liquid, have been studied and implemented as potential electrolytes for supercapacitors. The ionic size, conductivity, mobility, diffusion coefficient, and viscosity of electrolytes affect the device’s capacitance. Electrode type and its interaction with electrolytes are other factors to consider when choosing an electrolyte for a supercapacitor. In this review, an attempt has been made to provide a comprehensive and straightforward overview of the numerous electrolytes widely used for supercapacitor study and how these electrolytes interact with the electrodes to improve the performance of the supercapacitors.

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Electrolytic Double-Layer Supercapacitors Based on Sodium-Ion Systems, with Activated-Carbon Electrodes

Cited by 4 publications

References 23 publications

Non-woven polyaramid porous membranes as separators for Li-ion batteries?

Non-woven polyaramid porous membranes as separators for Li-ion batteries?

Electrochemical Characteristics of Tin Films in Cycling in Lithium-Ion Batteries

A review on electrolytes for supercapacitor device

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