Novel Type of Storage Cells Based on Electrochemical Double-Layer Capacitors

Maletin, Yurii A.; Изотов, В С; Kozachkov, Sergey G.; Mironova, A. A.; Danilin, V. V.

doi:10.1007/978-94-009-1643-2_29

Cited by 8 publications

(10 citation statements)

References 5 publications

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“…This mixture was laminated on the Ni foil and pressed together to form a very flexible layer of the active electrode material. After drying and plating under the vacuum, this material was covered by the Al (99.9999%) layer from one side [34][35][36][37]. After that the Al-covered carbon layer was spot-welded in the Ar atmosphere to the Al foil current collector.…”

Section: Electrode Preparation and Other Experimental Detailsmentioning

confidence: 99%

Electrochemical Properties of Nanoporous Carbon Electrodes

Lust¹,

Nurk²,

Janes³

et al. 2002

Condens. Matter Phys.

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Electrical double layer and electrochemical characteristics at the nanoporous carbon | (C 2 H 5 ) 4 NBF 4 + acetonitrile interface have been studied by the cyclic voltammetry and impedance spectroscopy methods. The value of zero charge potential (0.23 V vs. SCE in H 2 O), the region of ideal polarizability and other characteristics have been established. Analysis of complex plane plots shows that the nanoporous carbon | x M (C 2 H 5 ) 4 NBF 4 + acetonitrile interface can be simulated by the equivalent circuit, in which the two parallel conduction parts in the solid and liquid phases are interconnected by the double layer capacitance in parallel with the complex admittance of hindered reaction of the charge transfer process. The values of the characteristic frequency depend on the electrolyte concentration and on the electrode potential, i.e. on the nature of ions adsorbed at the surface of nanoporous carbon electrode.

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Section: Electrode Preparation and Other Experimental Detailsmentioning

confidence: 99%

Electrochemical Properties of Nanoporous Carbon Electrodes

Lust¹,

Nurk²,

Janes³

et al. 2002

Condens. Matter Phys.

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“…2,3,7 There are only some preliminary data discussing the electrochemical behavior of microporous carbons in phosphonium cation based electrolytes in acetonitrile nonaqueous solvent based solutions. 12,13 II. EXPERIMENTAL A microporous carbon powder was synthesized from TiC (Alfa Aesar, 2 mm powder, Postfach, Germany) by a gas phase reaction with molecular chlorine at T ¼ 950 C. 6,7 After gas phase reaction the microporous C(TiC) was reduced and cleaned with molecular H 2 (99.999%, AGA, Tallinn, Estonia) for 8 h and thereafter with Ar (99.999%, AGA) for 12 h and cooled to room temperature in the same Ar atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Substituted phosphonium cation based electrolytes for nonaqueous electrical double-layer capacitors

2010

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Tetrakis(diethylamino)phosphonium tetrafluoroborate (TDENPBF 4 ), tetrakis (diethylamino)phosphonium hexafluorophosphate (TDENPPF 6 ), and tetrakis (dimethylamino)phosphonium tetrafluoroborate (TDMNPBF 4 ) in acetonitrile (AN) have been studied as electrical double-layer capacitor electrolytes in a two-electrode test cell using titanium carbide derived carbon, C(TiC), as an electrode material. Electrochemical characteristics for C(TiC)j1 M TDENPBF 4 þ AN, C(TiC)j1 M TDENPPF 6 þ AN, and C(TiC)j1 M TDMNPBF 4 þ AN interfaces have been obtained by cyclic voltammetry, constant current charging/discharging, and electrochemical impedance spectroscopy. High-capacitance (85 F/g) and gravimetric power (269 kW/kg) have been achieved at cell voltage 3.2 V. Data obtained have been compared with results published previously.

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“…The electrochemical behaviour and adsorption of doubly charged cations at microporous carbon electrode has been investigated because there are only preliminary data describing the electrochemical behaviour of CDC|DMDABCO(BF 4 ) 2 + γ-BL system [2,3]. Comparison of our data with data given in [2,3] indicates that probably there was some residual water in γ-BL increasing the limiting solubility of DMDABCO(BF 4 ) 2 in γ-BL [2]. 0.4 M TEMABF 4 in γ-BL has also been tested as an EDLC electrolyte for comparison.…”

Section: Introductionmentioning

confidence: 99%

“…The main aim of this study was to obtain the electrochemical characteristics of supercapacitors based on the titanium carbide derived carbon (CDC-TiC) electrodes in 0.4 M N,N-dimethyl-1,4-diazabicyclo [2,2,2]octanediium tetrafluoroborate (DMDABCO(BF 4 ) 2 ), and 0.2 M in DMDABCO(BF 4 ) 2 + 0.2 M triethylmethylammonium tetrafluoroborate (TEMABF 4 ) salts in γ-butyrolactone (γ-BL) [1]. The concentration 0.4 M has been selected for DMDABCO(BF 4 ) 2 due to limited solubility in dry γ-BL.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Non-Aqueous Supercapacitors Based on Titanium Carbide Derived Carbon Electrodes and Novel Doubly Charged Cation Based Salts

et al. 2011

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The electrochemical characteristics for the supercapacitors based on the titanium carbide derived carbon (CDC-TiC) electrodes in 0.4 M N,N-dimethyl-1,4-diazabicyclo[2,2,2]octanediium tetrafluoroborate (DMDABCO(BF 4 ) 2 ), 0.2 M DMDABCO(BF 4 ) 2 + 0.2 M triethylmethylammonium tetrafluoroborate (TEMABF 4 ), and 0.4 M TEMABF 4 in γ-butyrolactone (γ-BL) have been studied using cyclic voltammetry, constant current charging/discharging and electrochemical impedance spectroscopy. The ideal supercapacitor behaviour was observed in a wide region of cell voltages (U ≤ 3.0 V) in 0.4 M DMDABCO(BF 4 ) 2 in γ-BL. The geometry of solvation shell around DMDABCO 2+ has been optimized with molecular dynamics calculations and the coordination number equal to 15, have been proposed and compared with electrochemical and gas sorption data for CDC-TiC. The gravimetric capacitance 129 F g -1 , energy 40.6 W h kg -1 and power 93 kW kg -1 were established for the CDC-TiC electrodes in 0.4 M DMDABCO(BF 4 ) 2 γ-BL solution.

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Novel Type of Storage Cells Based on Electrochemical Double-Layer Capacitors

Cited by 8 publications

References 5 publications

Electrochemical Properties of Nanoporous Carbon Electrodes

Electrochemical Properties of Nanoporous Carbon Electrodes

Substituted phosphonium cation based electrolytes for nonaqueous electrical double-layer capacitors

Characterization of Non-Aqueous Supercapacitors Based on Titanium Carbide Derived Carbon Electrodes and Novel Doubly Charged Cation Based Salts

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