Toluene-insoluble fraction of fullerene-soot as the electrode of a double-layer capacitor

Minato Egashira; Shigeto Okada; Yozo Korai; Jun Ichi Yamaki; Isao Mochida

doi:10.1016/j.jpowsour.2005.02.003

Toluene-insoluble fraction of fullerene-soot as the electrode of a double-layer capacitor

Minato Egashira, Shigeto Okada, Yozo Korai, Jun Ichi Yamaki, Isao Mochida

Department of Advanced Device Materials

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Several electrochemical properties of the heat-treated toluene-insoluble fraction separated from fullerene-soot (Fs-TI) were investigated to find their application as an advanced electrical double-layer capacitor (EDLC) electrode material using an organic solvent electrolyte. The heat-treated Fs-TI at 900 °C (Fs-TI-900) showed as high as 58 F g^-1 of capacitance, which is ascribed to its high capacitance per unit surface area as well as its reasonable surface area. In addition, the capacitor cell with Fs-TI-900 electrodes exhibited a better rate stability than that with conventional active carbon fiber electrodes due to its high electronic conductivity. The material heat-treated at 2400 °C (Fs-TI-2400) showed much smaller capacitance than Fs-TI-900 due to its smaller surface area. A unique rate dependence of capacitance was observed when the ion size of electrolyte was varied.

Original language	English
Pages (from-to)	116-120
Number of pages	5
Journal	Journal of Power Sources
Volume	148
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jpowsour.2005.02.003
Publication status	Published - Sept 15 2005

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2005.02.003

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title = "Toluene-insoluble fraction of fullerene-soot as the electrode of a double-layer capacitor",

abstract = "Several electrochemical properties of the heat-treated toluene-insoluble fraction separated from fullerene-soot (Fs-TI) were investigated to find their application as an advanced electrical double-layer capacitor (EDLC) electrode material using an organic solvent electrolyte. The heat-treated Fs-TI at 900 °C (Fs-TI-900) showed as high as 58 F g-1 of capacitance, which is ascribed to its high capacitance per unit surface area as well as its reasonable surface area. In addition, the capacitor cell with Fs-TI-900 electrodes exhibited a better rate stability than that with conventional active carbon fiber electrodes due to its high electronic conductivity. The material heat-treated at 2400 °C (Fs-TI-2400) showed much smaller capacitance than Fs-TI-900 due to its smaller surface area. A unique rate dependence of capacitance was observed when the ion size of electrolyte was varied.",

author = "Minato Egashira and Shigeto Okada and Yozo Korai and Yamaki, {Jun Ichi} and Isao Mochida",

note = "Funding Information: This work has been supported by CREST of JST (Japan Science and Technology Corporation).",

year = "2005",

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doi = "10.1016/j.jpowsour.2005.02.003",

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T1 - Toluene-insoluble fraction of fullerene-soot as the electrode of a double-layer capacitor

AU - Egashira, Minato

AU - Okada, Shigeto

AU - Korai, Yozo

AU - Yamaki, Jun Ichi

AU - Mochida, Isao

N1 - Funding Information: This work has been supported by CREST of JST (Japan Science and Technology Corporation).

PY - 2005/9/15

Y1 - 2005/9/15

N2 - Several electrochemical properties of the heat-treated toluene-insoluble fraction separated from fullerene-soot (Fs-TI) were investigated to find their application as an advanced electrical double-layer capacitor (EDLC) electrode material using an organic solvent electrolyte. The heat-treated Fs-TI at 900 °C (Fs-TI-900) showed as high as 58 F g-1 of capacitance, which is ascribed to its high capacitance per unit surface area as well as its reasonable surface area. In addition, the capacitor cell with Fs-TI-900 electrodes exhibited a better rate stability than that with conventional active carbon fiber electrodes due to its high electronic conductivity. The material heat-treated at 2400 °C (Fs-TI-2400) showed much smaller capacitance than Fs-TI-900 due to its smaller surface area. A unique rate dependence of capacitance was observed when the ion size of electrolyte was varied.

AB - Several electrochemical properties of the heat-treated toluene-insoluble fraction separated from fullerene-soot (Fs-TI) were investigated to find their application as an advanced electrical double-layer capacitor (EDLC) electrode material using an organic solvent electrolyte. The heat-treated Fs-TI at 900 °C (Fs-TI-900) showed as high as 58 F g-1 of capacitance, which is ascribed to its high capacitance per unit surface area as well as its reasonable surface area. In addition, the capacitor cell with Fs-TI-900 electrodes exhibited a better rate stability than that with conventional active carbon fiber electrodes due to its high electronic conductivity. The material heat-treated at 2400 °C (Fs-TI-2400) showed much smaller capacitance than Fs-TI-900 due to its smaller surface area. A unique rate dependence of capacitance was observed when the ion size of electrolyte was varied.

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VL - 148

SP - 116

EP - 120

JO - Journal of Power Sources

JF - Journal of Power Sources

IS - 1-2

ER -

Toluene-insoluble fraction of fullerene-soot as the electrode of a double-layer capacitor

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

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