Space charge behaviors of electric double layer capacitors with nanocomposite electrode

Tashima, Daisuke; Kurosawatsu, Kenji; Uota, Masafumi; Karashima, Takeshi; Sung, Youl Moon; Otsubo, Masahisa; Honda, C.

doi:10.1016/j.surfcoat.2006.07.045

Cited by 16 publications

(6 citation statements)

References 9 publications

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“…Also, the closer proximity of both pore walls to the ions-and no possibility for the solvent molecules to screen chargecould lead to an excess charge density on the electrode side. The conductance properties of carbon have led some researchers to assume a space-charge capacitance on the electrode side of the double layer, [29,30] but this theory does not apply in the present study because of the lack of graphitic structure.…”

Section: Methodsmentioning

confidence: 96%

Desolvation of Ions in Subnanometer Pores and Its Effect on Capacitance and Double‐Layer Theory

et al. 2008

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Recasting the double layer: The implicit assumption that electrochemical double layers are governed only by ion/electrode charge separation may be short‐sighted and lead to a fundamental misunderstanding of the phenomenological response. This is shown in a study performed on ions confined in nanoporous carbon with pores smaller than the size of an ion surrounded by a solvation shell (see picture; TEA+=tetraethylammonium, AN=acetonitrile).

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Section: Methodsmentioning

confidence: 96%

Desolvation of Ions in Subnanometer Pores and Its Effect on Capacitance and Double‐Layer Theory

et al. 2008

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“…Also, the closer proximity of both pore walls to the ions—and no possibility for the solvent molecules to screen charge—could lead to an excess charge density on the electrode side. The conductance properties of carbon have led some researchers to assume a space‐charge capacitance on the electrode side of the double layer,29, 30 but this theory does not apply in the present study because of the lack of graphitic structure.…”

mentioning

confidence: 95%

Desolvation of Ions in Subnanometer Pores and Its Effect on Capacitance and Double‐Layer Theory

et al. 2008

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Die Doppelschicht in neuem Licht: Die Prämisse, die Eigenschaften elektrochemischer Doppelschichten würden nur durch die Ladungstrennung zwischen den Ionen und der Elektrode bestimmt, könnte sich als irreführend erweisen. Dies belegt eine Studie an räumlich eingeschränkten Ionen in einem Kohlenstoffsystem, dessen Nanoporen kleiner als die solvatisierten Ionen sind (siehe Bild; TEA+=Tetraethylammonium, AN=Acetonitril).

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“…To solve this, a new electrolyte and a new carbon electrode material are being developed. We measured the space-charge distributions of EDLCs with the pulsed electroacoustic (PEA) method (Tashima, Kurosawatsu, Sung, Otsubo, & Honda, 2007;Tashima, Kurosawatsu, Uota, Karashima, Sung, et al, 2007). The space-charge distribution of EDLCs is related to the nanoporous structure in the electrode material.…”

Section: Introductionmentioning

confidence: 99%

Relationship between space charge and effective pore size of nanoporous electrode in electric double-layer capacitor

Tashima

Otsubo

2011

Particuology

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Space charge behaviors of electric double layer capacitors with nanocomposite electrode

Cited by 16 publications

References 9 publications

Desolvation of Ions in Subnanometer Pores and Its Effect on Capacitance and Double‐Layer Theory

Desolvation of Ions in Subnanometer Pores and Its Effect on Capacitance and Double‐Layer Theory

Desolvation of Ions in Subnanometer Pores and Its Effect on Capacitance and Double‐Layer Theory

Relationship between space charge and effective pore size of nanoporous electrode in electric double-layer capacitor

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