A Self-Healing Gel Polymer Electrolyte, Based on a Macromolecule Cross-Linked Chitosan for Flexible Supercapacitors
Gel polymer electrolytes with a satisfied ionic conductivity have attracted interest in flexible energy storage technologies, such as supercapacitors and rechargeable batteries. However, the poor mechanical strength inhibits its widespread application. One of the most significant ways to avoid the d...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Gels |
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| Online Access: | https://www.mdpi.com/2310-2861/9/1/8 |
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| author | Xiaoyuan Xue Long Wan Wenwen Li Xueling Tan Xiaoyu Du Yongfen Tong |
| author_facet | Xiaoyuan Xue Long Wan Wenwen Li Xueling Tan Xiaoyu Du Yongfen Tong |
| author_sort | Xiaoyuan Xue |
| collection | DOAJ |
| description | Gel polymer electrolytes with a satisfied ionic conductivity have attracted interest in flexible energy storage technologies, such as supercapacitors and rechargeable batteries. However, the poor mechanical strength inhibits its widespread application. One of the most significant ways to avoid the drawbacks of the gel polymer electrolytes without compromising their ion transportation capabilities is to create a self−healing structure with the cross−linking segment. Herein, a new kind of macromolecule chemical cross−linked network ionic gel polymer electrolyte (MCIGPE) with superior electrochemical characteristics, a high flexibility, and an excellent self−healing ability were designed, based on chitosan and dibenzaldehyde−terminated poly (ethylene glycol) (PEGDA) via dynamic imine bonds. The ionic conductivity of the MCIGPE−65 can achieve 2.75 × 10<sup>−2</sup> S cm<sup>−1</sup>. A symmetric all−solid−state supercapacitor employing carbon cloth as current collectors, activated a carbon film as electrodes, and MCIGPE−65 as a gel polymer electrolyte exhibits a high specific capacitance of 51.1 F g<sup>−1</sup> at 1 A g<sup>−1</sup>, and the energy density of 7.1 Wh kg<sup>−1</sup> at a power density of 500.2 W kg<sup>−1</sup>. This research proves the enormous potential of incorporating, environmentally and economically, chitosan into gel polymer electrolytes for supercapacitors. |
| first_indexed | 2024-03-09T12:38:42Z |
| format | Article |
| id | doaj.art-41a4a322b2ce47df9a96fe6d7b23d56b |
| institution | Directory Open Access Journal |
| issn | 2310-2861 |
| language | English |
| last_indexed | 2024-03-09T12:38:42Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Gels |
| spelling | doaj.art-41a4a322b2ce47df9a96fe6d7b23d56b2023-11-30T22:21:03ZengMDPI AGGels2310-28612022-12-0191810.3390/gels9010008A Self-Healing Gel Polymer Electrolyte, Based on a Macromolecule Cross-Linked Chitosan for Flexible SupercapacitorsXiaoyuan Xue0Long Wan1Wenwen Li2Xueling Tan3Xiaoyu Du4Yongfen Tong5School of Environmental and Chemical Engineering, Nanchang Hangkong University, 696 Fenghe South Avenue, Nanchang 330063, ChinaSchool of Environmental and Chemical Engineering, Nanchang Hangkong University, 696 Fenghe South Avenue, Nanchang 330063, ChinaSchool of Environmental and Chemical Engineering, Nanchang Hangkong University, 696 Fenghe South Avenue, Nanchang 330063, ChinaSchool of Environmental and Chemical Engineering, Nanchang Hangkong University, 696 Fenghe South Avenue, Nanchang 330063, ChinaSchool of Environmental and Chemical Engineering, Nanchang Hangkong University, 696 Fenghe South Avenue, Nanchang 330063, ChinaSchool of Environmental and Chemical Engineering, Nanchang Hangkong University, 696 Fenghe South Avenue, Nanchang 330063, ChinaGel polymer electrolytes with a satisfied ionic conductivity have attracted interest in flexible energy storage technologies, such as supercapacitors and rechargeable batteries. However, the poor mechanical strength inhibits its widespread application. One of the most significant ways to avoid the drawbacks of the gel polymer electrolytes without compromising their ion transportation capabilities is to create a self−healing structure with the cross−linking segment. Herein, a new kind of macromolecule chemical cross−linked network ionic gel polymer electrolyte (MCIGPE) with superior electrochemical characteristics, a high flexibility, and an excellent self−healing ability were designed, based on chitosan and dibenzaldehyde−terminated poly (ethylene glycol) (PEGDA) via dynamic imine bonds. The ionic conductivity of the MCIGPE−65 can achieve 2.75 × 10<sup>−2</sup> S cm<sup>−1</sup>. A symmetric all−solid−state supercapacitor employing carbon cloth as current collectors, activated a carbon film as electrodes, and MCIGPE−65 as a gel polymer electrolyte exhibits a high specific capacitance of 51.1 F g<sup>−1</sup> at 1 A g<sup>−1</sup>, and the energy density of 7.1 Wh kg<sup>−1</sup> at a power density of 500.2 W kg<sup>−1</sup>. This research proves the enormous potential of incorporating, environmentally and economically, chitosan into gel polymer electrolytes for supercapacitors.https://www.mdpi.com/2310-2861/9/1/8gel polymer electrolyteschitosanself-healingionic liquidsupercapacitor |
| spellingShingle | Xiaoyuan Xue Long Wan Wenwen Li Xueling Tan Xiaoyu Du Yongfen Tong A Self-Healing Gel Polymer Electrolyte, Based on a Macromolecule Cross-Linked Chitosan for Flexible Supercapacitors Gels gel polymer electrolytes chitosan self-healing ionic liquid supercapacitor |
| title | A Self-Healing Gel Polymer Electrolyte, Based on a Macromolecule Cross-Linked Chitosan for Flexible Supercapacitors |
| title_full | A Self-Healing Gel Polymer Electrolyte, Based on a Macromolecule Cross-Linked Chitosan for Flexible Supercapacitors |
| title_fullStr | A Self-Healing Gel Polymer Electrolyte, Based on a Macromolecule Cross-Linked Chitosan for Flexible Supercapacitors |
| title_full_unstemmed | A Self-Healing Gel Polymer Electrolyte, Based on a Macromolecule Cross-Linked Chitosan for Flexible Supercapacitors |
| title_short | A Self-Healing Gel Polymer Electrolyte, Based on a Macromolecule Cross-Linked Chitosan for Flexible Supercapacitors |
| title_sort | self healing gel polymer electrolyte based on a macromolecule cross linked chitosan for flexible supercapacitors |
| topic | gel polymer electrolytes chitosan self-healing ionic liquid supercapacitor |
| url | https://www.mdpi.com/2310-2861/9/1/8 |
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