A review of neutral pH polymer electrolytes for electrochemical capacitors: Transitioning from liquid to solid devices

The development of neutral pH polymer electrolytes has enabled high-performance solid-state, thin, and flexible electrochemical capacitors (ECs) to provide power for future consumer electronics and Internet-of-Thing devices. Notwithstanding their promising prospect, there is still some lack of under...

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Main Authors: Alvin Virya, Keryn Lian
Format: Article
Language:English
Published: KeAi Communications Co. Ltd. 2021-02-01
Series:Materials Reports: Energy
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666935820300057
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author Alvin Virya
Keryn Lian
author_facet Alvin Virya
Keryn Lian
author_sort Alvin Virya
collection DOAJ
description The development of neutral pH polymer electrolytes has enabled high-performance solid-state, thin, and flexible electrochemical capacitors (ECs) to provide power for future consumer electronics and Internet-of-Thing devices. Notwithstanding their promising prospect, there is still some lack of understandings or disconnections from fundamental science to practical applications of these electrolytes. In this review, we provide an overview of state-of-the-art studies on ECs with neutral pH electrolytes in both liquid and solid configurations. Starting from the fundamental studies on the voltage window and ion conduction of salt species in liquid solution to polymer electrolytes, key considerations in developing neutral pH polymer electrolytes are discussed. The performance of the polymer electrolytes along with their enabled solid symmetric and asymmetric EC devices, as well as some enhanced functionalities are presented. The future directions for research on neutral pH polymer electrolytes are proposed, expected to provide reference for further enriching the fundamental knowledge and improving the device performances.
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spelling doaj.art-433f6ed770e348e3be3ed0480f77bf192022-12-27T04:38:58ZengKeAi Communications Co. Ltd.Materials Reports: Energy2666-93582021-02-0111100005A review of neutral pH polymer electrolytes for electrochemical capacitors: Transitioning from liquid to solid devicesAlvin Virya0Keryn Lian1Corresponding author.; Department of Materials Science & Engineering, University of Toronto, Toronto, Ontario, M5S 3E4, CanadaCorresponding author.; Department of Materials Science & Engineering, University of Toronto, Toronto, Ontario, M5S 3E4, CanadaThe development of neutral pH polymer electrolytes has enabled high-performance solid-state, thin, and flexible electrochemical capacitors (ECs) to provide power for future consumer electronics and Internet-of-Thing devices. Notwithstanding their promising prospect, there is still some lack of understandings or disconnections from fundamental science to practical applications of these electrolytes. In this review, we provide an overview of state-of-the-art studies on ECs with neutral pH electrolytes in both liquid and solid configurations. Starting from the fundamental studies on the voltage window and ion conduction of salt species in liquid solution to polymer electrolytes, key considerations in developing neutral pH polymer electrolytes are discussed. The performance of the polymer electrolytes along with their enabled solid symmetric and asymmetric EC devices, as well as some enhanced functionalities are presented. The future directions for research on neutral pH polymer electrolytes are proposed, expected to provide reference for further enriching the fundamental knowledge and improving the device performances.http://www.sciencedirect.com/science/article/pii/S2666935820300057Electrochemical capacitorSupercapacitorElectrolyteNeutral pHAqueous-based electrolytePolymer electrolyte
spellingShingle Alvin Virya
Keryn Lian
A review of neutral pH polymer electrolytes for electrochemical capacitors: Transitioning from liquid to solid devices
Materials Reports: Energy
Electrochemical capacitor
Supercapacitor
Electrolyte
Neutral pH
Aqueous-based electrolyte
Polymer electrolyte
title A review of neutral pH polymer electrolytes for electrochemical capacitors: Transitioning from liquid to solid devices
title_full A review of neutral pH polymer electrolytes for electrochemical capacitors: Transitioning from liquid to solid devices
title_fullStr A review of neutral pH polymer electrolytes for electrochemical capacitors: Transitioning from liquid to solid devices
title_full_unstemmed A review of neutral pH polymer electrolytes for electrochemical capacitors: Transitioning from liquid to solid devices
title_short A review of neutral pH polymer electrolytes for electrochemical capacitors: Transitioning from liquid to solid devices
title_sort review of neutral ph polymer electrolytes for electrochemical capacitors transitioning from liquid to solid devices
topic Electrochemical capacitor
Supercapacitor
Electrolyte
Neutral pH
Aqueous-based electrolyte
Polymer electrolyte
url http://www.sciencedirect.com/science/article/pii/S2666935820300057
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