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1,3‐Dioxolane‐Based Electrolytes for Environmentally Friendly High‐Voltage Supercapacitors.

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Title: 1,3‐Dioxolane‐Based Electrolytes for Environmentally Friendly High‐Voltage Supercapacitors.
Authors: Wu, Heng‐fei1 (AUTHOR), Li, Jing‐xuan1 (AUTHOR), Zhong, Liang1 (AUTHOR), Zhou, Li‐ping2 (AUTHOR), Liu, Ying2 (AUTHOR), Wang, Zhou3 (AUTHOR), Zhang, Gang4 (AUTHOR), Zou, Lian‐li1 (AUTHOR), Jing, Mao‐xiang1 (AUTHOR) mxjing2004@ujs.edu.cn
Source: Energy Technology. Oct2025, Vol. 13 Issue 10, p1-12. 12p.
Subject Terms: *Sustainability, *Energy storage, Supercapacitors, Electrolytes, Ionic conductivity, High voltages, Lithium ions, Dioxolanes
Abstract: Supercapacitor (SC) is an important energy storage device with high power density and long cycle life. The current commonly used acetonitrile‐based electrolytes often have some problems such as serious corrosion and strong toxicity. Herein, 1,3‐dioxolane (DOL) is used as solvent and lithium bis((trifluoromethyl)sulfonyl)azanide (LiTFSI) as lithium salt to form a nontoxic, corrosion‐free electrolyte with high ionic conductivity for SCs. The ionic conductivity of the prepared DOL‐LiTFSI electrolyte reaches 3.26 × 10−3 S cm−1. Further, the performance of the electrolyte is improved by adding 1,2‐dimethoxyethane (DME). The addition of DME decreases the viscosity of the electrolyte and improves the ionic conductivity to 1.73 × 10−2 S cm−1. The DOL/DME composite electrolyte endows the activated carbon (AC) SC with higher cycle performance with a capacity retention rate of 82% after 15 000 cycles at a current density of 2 A g−1. In addition, by equipping a wound cylindrical SC, the capacity retention rate is 81.4% after 11 000 cycles at a current density of 10 A g−1. Notably, the electrolyte enables SCs to operate down to −30 °C and still provides a high specific capacitance and a long charge/discharge cycling. This environmentally friendly DOL‐based electrolyte is expected to promote the green development of high‐voltage SCs. [ABSTRACT FROM AUTHOR]
Copyright of Energy Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: 1,3‐Dioxolane‐Based Electrolytes for Environmentally Friendly High‐Voltage Supercapacitors.
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  Data: <searchLink fieldCode="AR" term="%22Wu%2C+Heng‐fei%22">Wu, Heng‐fei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Jing‐xuan%22">Li, Jing‐xuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhong%2C+Liang%22">Zhong, Liang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Li‐ping%22">Zhou, Li‐ping</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Ying%22">Liu, Ying</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Zhou%22">Wang, Zhou</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Gang%22">Zhang, Gang</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zou%2C+Lian‐li%22">Zou, Lian‐li</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jing%2C+Mao‐xiang%22">Jing, Mao‐xiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mxjing2004@ujs.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Energy+Technology%22">Energy Technology</searchLink>. Oct2025, Vol. 13 Issue 10, p1-12. 12p.
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  Data: *<searchLink fieldCode="DE" term="%22Sustainability%22">Sustainability</searchLink><br />*<searchLink fieldCode="DE" term="%22Energy+storage%22">Energy storage</searchLink><br /><searchLink fieldCode="DE" term="%22Supercapacitors%22">Supercapacitors</searchLink><br /><searchLink fieldCode="DE" term="%22Electrolytes%22">Electrolytes</searchLink><br /><searchLink fieldCode="DE" term="%22Ionic+conductivity%22">Ionic conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22High+voltages%22">High voltages</searchLink><br /><searchLink fieldCode="DE" term="%22Lithium+ions%22">Lithium ions</searchLink><br /><searchLink fieldCode="DE" term="%22Dioxolanes%22">Dioxolanes</searchLink>
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  Data: Supercapacitor (SC) is an important energy storage device with high power density and long cycle life. The current commonly used acetonitrile‐based electrolytes often have some problems such as serious corrosion and strong toxicity. Herein, 1,3‐dioxolane (DOL) is used as solvent and lithium bis((trifluoromethyl)sulfonyl)azanide (LiTFSI) as lithium salt to form a nontoxic, corrosion‐free electrolyte with high ionic conductivity for SCs. The ionic conductivity of the prepared DOL‐LiTFSI electrolyte reaches 3.26 × 10−3 S cm−1. Further, the performance of the electrolyte is improved by adding 1,2‐dimethoxyethane (DME). The addition of DME decreases the viscosity of the electrolyte and improves the ionic conductivity to 1.73 × 10−2 S cm−1. The DOL/DME composite electrolyte endows the activated carbon (AC) SC with higher cycle performance with a capacity retention rate of 82% after 15 000 cycles at a current density of 2 A g−1. In addition, by equipping a wound cylindrical SC, the capacity retention rate is 81.4% after 11 000 cycles at a current density of 10 A g−1. Notably, the electrolyte enables SCs to operate down to −30 °C and still provides a high specific capacitance and a long charge/discharge cycling. This environmentally friendly DOL‐based electrolyte is expected to promote the green development of high‐voltage SCs. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Energy Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/ente.202402448
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      – Code: eng
        Text: English
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        PageCount: 12
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    Subjects:
      – SubjectFull: Sustainability
        Type: general
      – SubjectFull: Energy storage
        Type: general
      – SubjectFull: Supercapacitors
        Type: general
      – SubjectFull: Electrolytes
        Type: general
      – SubjectFull: Ionic conductivity
        Type: general
      – SubjectFull: High voltages
        Type: general
      – SubjectFull: Lithium ions
        Type: general
      – SubjectFull: Dioxolanes
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      – TitleFull: 1,3‐Dioxolane‐Based Electrolytes for Environmentally Friendly High‐Voltage Supercapacitors.
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              M: 10
              Text: Oct2025
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