Hydrogel Electrolyte with High Tolerance to a Wide Spectrum of pHs and Compressive Energy Storage Devices Based on It

Chuan LI; Shuo YANG; Ying GUO; Haiming LV; Pei LI; Xiaofang BAI; Xuejin LI; Chunyi ZHI; Hongfei LI

doi:10.1002/smtd.202201448

Hydrogel Electrolyte with High Tolerance to a Wide Spectrum of pHs and Compressive Energy Storage Devices Based on It

Chuan LI, Shuo YANG, Ying GUO, Haiming LV, Pei LI, Xiaofang BAI, Xuejin LI, Chunyi ZHI^*, Hongfei LI^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

14 Citations (Scopus)

Abstract

Normally, hydrogel electrolytes widely used in flexible energy storage devices have limited tolerance to different pHs. Most gel electrolytes will lose their compressible capability when the adaptable pH is changed. Herein, a poly(acrylamide₃-co-(sulfobetaine methacrylate)₁)@polyacrylamide (P(A₃-co-S₁)@PAM) hydrogel electrolyte equipped with a dual crosslinking network (DN) is successfully fabricated, which exhibits excellent tolerance to any pHs, endowing various energy storage devices including batteries and supercapacitors with superior mechanical durability. The batteries with mild and alkaline P(A₃-co-S₁)@PAM electrolytes display superior stability (over 3000 cycles). Additionally, a Zn||MnO₂ battery based on the P(A₃-co-S₁)@PAM hydrogel electrolyte (mild) under 50% compression strain also shows excellent charge–discharge stability and high capacity at 152.4 mAh g⁻¹ after 600 cycles. The strong reversible hydrogen bonds and electrostatic forces originating from zwitterionic structures of poly(sulfobetaine methacrylate) play an important role in dissipating and dispersing energy imposed abruptly. Meanwhile, the zwitterionic structure and intermolecular NH...O-C hydrogen bonds of the hydrogel lead to the property of acid resistance and alkali resistance. The tough and robust covalent crosslinking bonds and the tight arrangement of DN polymer chains enable the hydrogel electrolytes to recover their initial shape fast once unloading.

Original language	English
Article number	2201448
Journal	Small Methods
Volume	7
Issue number	3
Early online date	6 Jan 2023
DOIs	https://doi.org/10.1002/smtd.202201448
Publication status	Published - 13 Mar 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 Wiley-VCH GmbH.

Funding

C.L. and S.Y. contributed equally to this work. This work was supported by the National Natural Science Foundation of China (Grant No. 22005207) and the Natural Science Foundation of Guangdong Province, China (Grant No. 2019A1515011819). This work was supported in part by InnoHK Project on (Project 1.3 – Flexible and Stretchable Technologies (FAST) for monitoring of CVD risk factors: Sensing and Applications) at Hong Kong Centre for Cerebro-Cardiovascular Health Engineering (COCHE). This research was supported by GRF under Project CityU 11305218 funded by RGC.

Keywords

compressible performance
double crosslinking networks
flexible batteries
flexible supercapacitors
hydrogel electrolytes

Access to Document

10.1002/smtd.202201448

Cite this

@article{ef0551c9a43f4966aeab9f0583d8236f,

title = "Hydrogel Electrolyte with High Tolerance to a Wide Spectrum of pHs and Compressive Energy Storage Devices Based on It",

abstract = "Normally, hydrogel electrolytes widely used in flexible energy storage devices have limited tolerance to different pHs. Most gel electrolytes will lose their compressible capability when the adaptable pH is changed. Herein, a poly(acrylamide3-co-(sulfobetaine methacrylate)1)@polyacrylamide (P(A3-co-S1)@PAM) hydrogel electrolyte equipped with a dual crosslinking network (DN) is successfully fabricated, which exhibits excellent tolerance to any pHs, endowing various energy storage devices including batteries and supercapacitors with superior mechanical durability. The batteries with mild and alkaline P(A3-co-S1)@PAM electrolytes display superior stability (over 3000 cycles). Additionally, a Zn||MnO2 battery based on the P(A3-co-S1)@PAM hydrogel electrolyte (mild) under 50% compression strain also shows excellent charge–discharge stability and high capacity at 152.4 mAh g−1 after 600 cycles. The strong reversible hydrogen bonds and electrostatic forces originating from zwitterionic structures of poly(sulfobetaine methacrylate) play an important role in dissipating and dispersing energy imposed abruptly. Meanwhile, the zwitterionic structure and intermolecular NH...O-C hydrogen bonds of the hydrogel lead to the property of acid resistance and alkali resistance. The tough and robust covalent crosslinking bonds and the tight arrangement of DN polymer chains enable the hydrogel electrolytes to recover their initial shape fast once unloading.",

keywords = "compressible performance, double crosslinking networks, flexible batteries, flexible supercapacitors, hydrogel electrolytes",

author = "Chuan LI and Shuo YANG and Ying GUO and Haiming LV and Pei LI and Xiaofang BAI and Xuejin LI and Chunyi ZHI and Hongfei LI",

note = "Publisher Copyright: {\textcopyright} 2023 Wiley-VCH GmbH.",

year = "2023",

month = mar,

day = "13",

doi = "10.1002/smtd.202201448",

language = "English",

volume = "7",

journal = "Small Methods",

issn = "2366-9608",

publisher = "John Wiley & Sons Ltd.",

number = "3",

}

TY - JOUR

T1 - Hydrogel Electrolyte with High Tolerance to a Wide Spectrum of pHs and Compressive Energy Storage Devices Based on It

AU - LI, Chuan

AU - YANG, Shuo

AU - GUO, Ying

AU - LV, Haiming

AU - LI, Pei

AU - BAI, Xiaofang

AU - LI, Xuejin

AU - ZHI, Chunyi

AU - LI, Hongfei

PY - 2023/3/13

Y1 - 2023/3/13

N2 - Normally, hydrogel electrolytes widely used in flexible energy storage devices have limited tolerance to different pHs. Most gel electrolytes will lose their compressible capability when the adaptable pH is changed. Herein, a poly(acrylamide3-co-(sulfobetaine methacrylate)1)@polyacrylamide (P(A3-co-S1)@PAM) hydrogel electrolyte equipped with a dual crosslinking network (DN) is successfully fabricated, which exhibits excellent tolerance to any pHs, endowing various energy storage devices including batteries and supercapacitors with superior mechanical durability. The batteries with mild and alkaline P(A3-co-S1)@PAM electrolytes display superior stability (over 3000 cycles). Additionally, a Zn||MnO2 battery based on the P(A3-co-S1)@PAM hydrogel electrolyte (mild) under 50% compression strain also shows excellent charge–discharge stability and high capacity at 152.4 mAh g−1 after 600 cycles. The strong reversible hydrogen bonds and electrostatic forces originating from zwitterionic structures of poly(sulfobetaine methacrylate) play an important role in dissipating and dispersing energy imposed abruptly. Meanwhile, the zwitterionic structure and intermolecular NH...O-C hydrogen bonds of the hydrogel lead to the property of acid resistance and alkali resistance. The tough and robust covalent crosslinking bonds and the tight arrangement of DN polymer chains enable the hydrogel electrolytes to recover their initial shape fast once unloading.

AB - Normally, hydrogel electrolytes widely used in flexible energy storage devices have limited tolerance to different pHs. Most gel electrolytes will lose their compressible capability when the adaptable pH is changed. Herein, a poly(acrylamide3-co-(sulfobetaine methacrylate)1)@polyacrylamide (P(A3-co-S1)@PAM) hydrogel electrolyte equipped with a dual crosslinking network (DN) is successfully fabricated, which exhibits excellent tolerance to any pHs, endowing various energy storage devices including batteries and supercapacitors with superior mechanical durability. The batteries with mild and alkaline P(A3-co-S1)@PAM electrolytes display superior stability (over 3000 cycles). Additionally, a Zn||MnO2 battery based on the P(A3-co-S1)@PAM hydrogel electrolyte (mild) under 50% compression strain also shows excellent charge–discharge stability and high capacity at 152.4 mAh g−1 after 600 cycles. The strong reversible hydrogen bonds and electrostatic forces originating from zwitterionic structures of poly(sulfobetaine methacrylate) play an important role in dissipating and dispersing energy imposed abruptly. Meanwhile, the zwitterionic structure and intermolecular NH...O-C hydrogen bonds of the hydrogel lead to the property of acid resistance and alkali resistance. The tough and robust covalent crosslinking bonds and the tight arrangement of DN polymer chains enable the hydrogel electrolytes to recover their initial shape fast once unloading.

KW - compressible performance

KW - double crosslinking networks

KW - flexible batteries

KW - flexible supercapacitors

KW - hydrogel electrolytes

UR - http://www.scopus.com/inward/record.url?scp=85145850272&partnerID=8YFLogxK

U2 - 10.1002/smtd.202201448

DO - 10.1002/smtd.202201448

M3 - Journal Article (refereed)

C2 - 36609814

AN - SCOPUS:85145850272

SN - 2366-9608

VL - 7

JO - Small Methods

JF - Small Methods

IS - 3

M1 - 2201448

ER -

Hydrogel Electrolyte with High Tolerance to a Wide Spectrum of pHs and Compressive Energy Storage Devices Based on It

Abstract

Bibliographical note

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this