Designing electrolyte with multi-ether solvation structure enabling low-temperature sodium ion capacitor

Sodium-ion hybrid capacitors (SICs), which combine the high energy density of batteries with the high power density and long cycle life of capacitors, are considered promising next-generation energy storage devices. Ensuring the performance of SICs in low-temperature environments is crucial for appl...

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Main Authors: Dongming Liu, Mengfan Pei, Xin Jin, Lin Wang, Wanyuan Jiang, Borui Li, Runyue Mao, Xigao Jian, Fangyuan Hu
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:International Journal of Extreme Manufacturing
Subjects:
Online Access:https://doi.org/10.1088/2631-7990/adbfe0
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author Dongming Liu
Mengfan Pei
Xin Jin
Lin Wang
Wanyuan Jiang
Borui Li
Runyue Mao
Xigao Jian
Fangyuan Hu
author_facet Dongming Liu
Mengfan Pei
Xin Jin
Lin Wang
Wanyuan Jiang
Borui Li
Runyue Mao
Xigao Jian
Fangyuan Hu
author_sort Dongming Liu
collection DOAJ
description Sodium-ion hybrid capacitors (SICs), which combine the high energy density of batteries with the high power density and long cycle life of capacitors, are considered promising next-generation energy storage devices. Ensuring the performance of SICs in low-temperature environments is crucial for applications in high-altitude cold regions, where the desolvation process of Na ^+ and the transport process in the solid electrolyte interphase (SEI) are determinant. In this paper, we proposed a multi-ether modulation strategy to construct a solvation sheath with multi-ether participation by modulating the coordination of Na ^+ and solvents. This unique solvation sheath not only reduces the desolvation energy barrier of Na ^+ , but more importantly forms a Na _2 O-rich inorganic SEI and enhances the ionic dynamics of Na ^+ . Benefiting from the excellent solvation structure design, SICs prepared with this electrolyte can achieve energy density of up to 178 Wh·kg ^‒1 and ultra-high power density of 42 390 W·kg ^‒1 at room temperature. Notably, this SIC delivers record-high energy densities of 149 Wh·kg ^‒1 and 119 Wh·kg ^‒1 as well as power densities of up to 25 200 W·kg ^‒1 and 24 591 W·kg ^‒1 at ‒20 °C and ‒40 °C, respectively. This work provides new ideas for the development of high-performance SICs for low-temperature operating environments.
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spelling doaj-art-ff6b3d6f0a174fb08472b97e6007ee272025-08-20T03:07:09ZengIOP PublishingInternational Journal of Extreme Manufacturing2631-79902025-01-017404550410.1088/2631-7990/adbfe0Designing electrolyte with multi-ether solvation structure enabling low-temperature sodium ion capacitorDongming Liu0Mengfan Pei1Xin Jin2Lin Wang3Wanyuan Jiang4Borui Li5Runyue Mao6Xigao Jian7Fangyuan Hu8https://orcid.org/0000-0002-1611-7372School of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High-Performance Resin Materials (Liaoning Province), Dalian University of Technology , Dalian 116024, People’s Republic of ChinaSchool of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High-Performance Resin Materials (Liaoning Province), Dalian University of Technology , Dalian 116024, People’s Republic of ChinaSchool of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High-Performance Resin Materials (Liaoning Province), Dalian University of Technology , Dalian 116024, People’s Republic of ChinaState Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, School of Chemical Engineering, Technology Innovation Center of High-Performance Resin Materials (Liaoning Province), Dalian University of Technology , Dalian 116024, People’s Republic of ChinaState Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, School of Chemical Engineering, Technology Innovation Center of High-Performance Resin Materials (Liaoning Province), Dalian University of Technology , Dalian 116024, People’s Republic of ChinaSchool of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High-Performance Resin Materials (Liaoning Province), Dalian University of Technology , Dalian 116024, People’s Republic of ChinaSchool of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High-Performance Resin Materials (Liaoning Province), Dalian University of Technology , Dalian 116024, People’s Republic of ChinaSchool of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High-Performance Resin Materials (Liaoning Province), Dalian University of Technology , Dalian 116024, People’s Republic of China; State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, School of Chemical Engineering, Technology Innovation Center of High-Performance Resin Materials (Liaoning Province), Dalian University of Technology , Dalian 116024, People’s Republic of ChinaSchool of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High-Performance Resin Materials (Liaoning Province), Dalian University of Technology , Dalian 116024, People’s Republic of ChinaSodium-ion hybrid capacitors (SICs), which combine the high energy density of batteries with the high power density and long cycle life of capacitors, are considered promising next-generation energy storage devices. Ensuring the performance of SICs in low-temperature environments is crucial for applications in high-altitude cold regions, where the desolvation process of Na ^+ and the transport process in the solid electrolyte interphase (SEI) are determinant. In this paper, we proposed a multi-ether modulation strategy to construct a solvation sheath with multi-ether participation by modulating the coordination of Na ^+ and solvents. This unique solvation sheath not only reduces the desolvation energy barrier of Na ^+ , but more importantly forms a Na _2 O-rich inorganic SEI and enhances the ionic dynamics of Na ^+ . Benefiting from the excellent solvation structure design, SICs prepared with this electrolyte can achieve energy density of up to 178 Wh·kg ^‒1 and ultra-high power density of 42 390 W·kg ^‒1 at room temperature. Notably, this SIC delivers record-high energy densities of 149 Wh·kg ^‒1 and 119 Wh·kg ^‒1 as well as power densities of up to 25 200 W·kg ^‒1 and 24 591 W·kg ^‒1 at ‒20 °C and ‒40 °C, respectively. This work provides new ideas for the development of high-performance SICs for low-temperature operating environments.https://doi.org/10.1088/2631-7990/adbfe0sodium ion capacitorssolvated structureNa2O-rich SEIlow operating temperature
spellingShingle Dongming Liu
Mengfan Pei
Xin Jin
Lin Wang
Wanyuan Jiang
Borui Li
Runyue Mao
Xigao Jian
Fangyuan Hu
Designing electrolyte with multi-ether solvation structure enabling low-temperature sodium ion capacitor
International Journal of Extreme Manufacturing
sodium ion capacitors
solvated structure
Na2O-rich SEI
low operating temperature
title Designing electrolyte with multi-ether solvation structure enabling low-temperature sodium ion capacitor
title_full Designing electrolyte with multi-ether solvation structure enabling low-temperature sodium ion capacitor
title_fullStr Designing electrolyte with multi-ether solvation structure enabling low-temperature sodium ion capacitor
title_full_unstemmed Designing electrolyte with multi-ether solvation structure enabling low-temperature sodium ion capacitor
title_short Designing electrolyte with multi-ether solvation structure enabling low-temperature sodium ion capacitor
title_sort designing electrolyte with multi ether solvation structure enabling low temperature sodium ion capacitor
topic sodium ion capacitors
solvated structure
Na2O-rich SEI
low operating temperature
url https://doi.org/10.1088/2631-7990/adbfe0
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