Propionitrile as a single organic solvent for high voltage electric double-layer capacitors

Hoai Van T. Nguyen; Abdullah Bin Faheem; Kyungwon Kwak; Kyung Koo Lee

doi:10.1016/j.jpowsour.2020.228134

Propionitrile as a single organic solvent for high voltage electric double-layer capacitors

Hoai Van T. Nguyen, Abdullah Bin Faheem, Kyungwon Kwak, Kyung Koo Lee

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

21 Citations (Scopus)

Abstract

This study investigates the novel use of propionitrile (PN) as the single organic solvent for high-voltage carbon/carbon capacitors. Quaternary ammonium salts spiro-(1,1ʹ)-bipyrrolidinium tetrafluoroborate (SBPBF₄) and 1,1-dimethylpyrrolidinium tetrafluoroborate (DMPBF₄) dissolved in acetonitrile (AN) and propionitrile (PN) are compared. PN-based electrolytes exhibit a large and symmetric electrochemical stability, an exceptional anodic potential limit, good ionic conductivity, and low viscosity, allowing EDLCs to operate at 3.5 V even with a high current density (2.5 A g⁻¹). Moreover, PN-based electrolytes can suppress the anodic dissolution of the Al current collector at a high potential. These advantages help in the realization of EDLCs with excellent cycling stabilities at high voltages. As a result, at 3.5 V, EDLCs with PN-based electrolytes exhibit the highest energy and power density of 49.3 Wh kg⁻¹ and 22.9 kW kg⁻¹, respectively. Therefore, the electrolyte systems reported here could be a promising electrolyte candidate to replace currently commercialized electrolytes for practical applications.

Original language	English
Article number	228134
Journal	Journal of Power Sources
Volume	463
DOIs	https://doi.org/10.1016/j.jpowsour.2020.228134
Publication status	Published - 2020 Jul 1

Bibliographical note

Funding Information:
This research was supported by the mid- and long-term nuclear research and development program through the National Research Foundation of Korea ( NRF-2017M2A8A5014710 ) funded by the Korean Ministry of Science and ICT and the National Research Foundation of Korea (NRF) grant funded by the Korea government( MSIT ) ( NRF-2019R1A4A102980111 ).

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

1,1-Dimethylpyrrolidinium tetrafluoroborate
Cycle stability
Electric double-layer capacitor
High-voltage
Propionitrile

ASJC Scopus subject areas

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.2020.228134

Cite this

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title = "Propionitrile as a single organic solvent for high voltage electric double-layer capacitors",

abstract = "This study investigates the novel use of propionitrile (PN) as the single organic solvent for high-voltage carbon/carbon capacitors. Quaternary ammonium salts spiro-(1,1ʹ)-bipyrrolidinium tetrafluoroborate (SBPBF4) and 1,1-dimethylpyrrolidinium tetrafluoroborate (DMPBF4) dissolved in acetonitrile (AN) and propionitrile (PN) are compared. PN-based electrolytes exhibit a large and symmetric electrochemical stability, an exceptional anodic potential limit, good ionic conductivity, and low viscosity, allowing EDLCs to operate at 3.5 V even with a high current density (2.5 A g−1). Moreover, PN-based electrolytes can suppress the anodic dissolution of the Al current collector at a high potential. These advantages help in the realization of EDLCs with excellent cycling stabilities at high voltages. As a result, at 3.5 V, EDLCs with PN-based electrolytes exhibit the highest energy and power density of 49.3 Wh kg−1 and 22.9 kW kg−1, respectively. Therefore, the electrolyte systems reported here could be a promising electrolyte candidate to replace currently commercialized electrolytes for practical applications.",

keywords = "1,1-Dimethylpyrrolidinium tetrafluoroborate, Cycle stability, Electric double-layer capacitor, High-voltage, Propionitrile",

author = "Nguyen, {Hoai Van T.} and Faheem, {Abdullah Bin} and Kyungwon Kwak and Lee, {Kyung Koo}",

note = "Funding Information: This research was supported by the mid- and long-term nuclear research and development program through the National Research Foundation of Korea ( NRF-2017M2A8A5014710 ) funded by the Korean Ministry of Science and ICT and the National Research Foundation of Korea (NRF) grant funded by the Korea government( MSIT ) ( NRF-2019R1A4A102980111 ). Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

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AU - Nguyen, Hoai Van T.

AU - Faheem, Abdullah Bin

AU - Kwak, Kyungwon

AU - Lee, Kyung Koo

N1 - Funding Information: This research was supported by the mid- and long-term nuclear research and development program through the National Research Foundation of Korea ( NRF-2017M2A8A5014710 ) funded by the Korean Ministry of Science and ICT and the National Research Foundation of Korea (NRF) grant funded by the Korea government( MSIT ) ( NRF-2019R1A4A102980111 ). Publisher Copyright: © 2020 Elsevier B.V.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - This study investigates the novel use of propionitrile (PN) as the single organic solvent for high-voltage carbon/carbon capacitors. Quaternary ammonium salts spiro-(1,1ʹ)-bipyrrolidinium tetrafluoroborate (SBPBF4) and 1,1-dimethylpyrrolidinium tetrafluoroborate (DMPBF4) dissolved in acetonitrile (AN) and propionitrile (PN) are compared. PN-based electrolytes exhibit a large and symmetric electrochemical stability, an exceptional anodic potential limit, good ionic conductivity, and low viscosity, allowing EDLCs to operate at 3.5 V even with a high current density (2.5 A g−1). Moreover, PN-based electrolytes can suppress the anodic dissolution of the Al current collector at a high potential. These advantages help in the realization of EDLCs with excellent cycling stabilities at high voltages. As a result, at 3.5 V, EDLCs with PN-based electrolytes exhibit the highest energy and power density of 49.3 Wh kg−1 and 22.9 kW kg−1, respectively. Therefore, the electrolyte systems reported here could be a promising electrolyte candidate to replace currently commercialized electrolytes for practical applications.

AB - This study investigates the novel use of propionitrile (PN) as the single organic solvent for high-voltage carbon/carbon capacitors. Quaternary ammonium salts spiro-(1,1ʹ)-bipyrrolidinium tetrafluoroborate (SBPBF4) and 1,1-dimethylpyrrolidinium tetrafluoroborate (DMPBF4) dissolved in acetonitrile (AN) and propionitrile (PN) are compared. PN-based electrolytes exhibit a large and symmetric electrochemical stability, an exceptional anodic potential limit, good ionic conductivity, and low viscosity, allowing EDLCs to operate at 3.5 V even with a high current density (2.5 A g−1). Moreover, PN-based electrolytes can suppress the anodic dissolution of the Al current collector at a high potential. These advantages help in the realization of EDLCs with excellent cycling stabilities at high voltages. As a result, at 3.5 V, EDLCs with PN-based electrolytes exhibit the highest energy and power density of 49.3 Wh kg−1 and 22.9 kW kg−1, respectively. Therefore, the electrolyte systems reported here could be a promising electrolyte candidate to replace currently commercialized electrolytes for practical applications.

KW - 1,1-Dimethylpyrrolidinium tetrafluoroborate

KW - Cycle stability

KW - Electric double-layer capacitor

KW - High-voltage

KW - Propionitrile

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Propionitrile as a single organic solvent for high voltage electric double-layer capacitors

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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