An Agar gel modulation with melamine foam skeleton for flexible Zn-air batteries

Zuo, Yayu; Wang, Keliang; Wei, Manhui; Zhang, Pengfei; Zhao, Siyuan; Pei, Pucheng; Wang, Hengwei; Chen, Zhuo; Shang, Nuo

doi:10.1016/j.cej.2022.139301

Cited by 19 publications

(10 citation statements)

References 44 publications

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“…The excellent electrochemical performances of FZABs assembled with the HAcc@HPPAN-COONa/PANa QSEs are further highlighted by comparing with the previously reported FZABs (Figure g, Table S1). − Besides, the HAcc@HPPAN-COONa/PANa electrolyte is highly competitive in terms of its recyclability and environmental friendliness. After immersing the failed QSEs into the liquid electrolyte, the FZABs containing the renewed HAcc@HPPAN-COONa/PANa still operate stably for ∼80 h (Figure S15).…”

Section: Resultsmentioning

confidence: 99%

Enhanced Semi-interpenetrating Network Quasi-solid Electrolytes Modified by Hollow Porous Nanofibers for Flexible Zinc–Air Batteries

Chen

Jin

Yang

et al. 2023

ACS Sustainable Chem. Eng.

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The low ionic conductivity and poor mechanical property of quasi-solid electrolytes (QSEs) have hindered the practical implementation of flexible zinc−air batteries (FZABs) with a higher energy density and a longer working time. Herein, inspired by the robust natural extracellular matrix and good waterretention vacuoles of plant cells, semi-interpenetrating networkstructured QSEs composed of rigid quaternary ammonium salt of chitosan-decorated hollow porous polyacrylonitrile-based nanofibers and a soft hydrophilic sodium acrylate (PANa) polymer are fabricated. The cross-linked semi-interpenetrating network structure endows the QSEs with enhanced electrolyte absorption/ retention capacity, increased ionic conductivity, and improved mechanical strength. Moreover, the introduction of interconnected hollow porous nanofibers offers favorable water reservoirs and ion-conduction channels to further regulate the OH − flux. As a result, the FZABs assembled with the bioinspired QSEs exhibit a high power density (126 mW cm −2 ), a long lifespan (100 h), as well as good flexibility. The demonstrated bionic and in situ crosslinking strategies provide enlightening pathways for the design of advanced QSEs for high-performance flexible energy conversion and storage systems.

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Section: Resultsmentioning

confidence: 99%

Enhanced Semi-interpenetrating Network Quasi-solid Electrolytes Modified by Hollow Porous Nanofibers for Flexible Zinc–Air Batteries

Chen

Jin

Yang

et al. 2023

ACS Sustainable Chem. Eng.

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“…[117][118][119] The development of Zn-air batteries is constantly towards the breakthrough of flexibility and environmental adaptability. The currently reported flexible Zn-air batteries are primarily divided into three configurations: cable-type, [120] sandwich-type, [121] and in-planetype. [122] In terms of electrolyte composition, KOH is often required to be added since its corresponding aqueous solution exhibits low viscosity, high ionic conductivity (over 50 S m À1 at room temperature), and excellent oxygen diffusion coefficient for achieving prominent electrochemical reaction kinetics and c) Reproduced with permission.…”

Section: Flexible Organo-hydrogel Electrolytes For Zn-air Batteriesmentioning

confidence: 99%

Organo‐Hydrogel Electrolytes with Versatile Environmental Adaptation for Advanced Flexible Aqueous Energy Storage Devices

et al. 2023

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With growing demands for portable electronics, flexible aqueous energy storage devices such as supercapacitors and Zn‐based batteries have drawn tremendous interest from both academic and industrial fields. Organo‐hydrogels, crosslinked amphiphilic polymers filled with organic solvents and water, are regarded as an ideal electrolyte candidate for portable electronic applications, especially due to their superior environmental adaptation. Organo‐hydrogels can reserve the advantages of the corresponding hydrogels and achieve some unique features such as broad temperature tolerance, high mechanical stability, strong interfacial interaction, and decent ionic conductivity. This review outlines the composition fundamentals, preparation methods, and comprehensive properties of reported organo‐hydrogel electrolytes. In particular, supercapacitors and Zn‐based batteries that operate under harsh temperature conditions and unusual mechanical deformations endowed by organo‐hydrogel electrolytes are further highlighted. Moreover, a unique perspective on the current challenges and future development directions of the organo‐hydrogel electrolytes for flexible energy storage is also provided.

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“…With the development of technologies in the internet of things and human–computer interactions, wearable electronic devices have become advanced. , Wearable electronic devices can imitate human skin’s flexibility, softness, and sensory performance and convert external stimuli into electrical signals. − It has been rapidly developed in dissimilar fields, such as electronic skin and soft transistors. , However, wearable electronic devices also have problems with power supply. The current power modules still suffer from low flexibility and hardness, especially the need for cyclic charging and replacement, which severely limits their wide application. − Therefore, triboelectric nanogenerator (TENG) technology can be used to power electronic devices. Stretchable TENGs are a great significant creation technology that can convert various mechanical dynamics of human activities and mechanical changes into electrical energy. − Due to the advantages of light weight, rich material selection, high voltage output, and substantial flexibility, stretchable TENGs have excellent development potential as a green power supply and self-powered electronics in the field of wearable electronics.…”

Section: Introductionmentioning

confidence: 99%

Triboelectric Nanogenerators Based on Super-Stretchable Conductive Hydrogels with the Assistance of Deep-Learning for Handwriting Recognition

Li,

Zhang,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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Nowadays, wearable electronic devices are developing rapidly with the internet of things and human–computer interactions. However, there are problems such as low power, short power supply time, and difficulty in charging, leading to a limited range of practical applications. In this paper, a composite hydrogel composed of polyacrylamide, hydroxypropyl methylcellulose, and MXene (Ti3C2T x ) nanosheets was developed, which formed a stable double-chain structure by hydrogen bonding. The configuration endows the hydrogel with excellent properties, such as high strength, strong stretchability, excellent electrical conductivity, and high strain sensitivity. Based on these characteristics, a flexible multifunctional triboelectric nanogenerator (PHM–TENG) was prepared using the hydrogel as a functional electrode. The nanogenerator can collect biomechanical energy and convert it to 183 V with a maximum power density of 78.3 mW/m2. It is worth noting that PHM–TENG can be applied as a green power source for driving miniature electronics. Also, it can be used as an auto-powered strain sensor that distinguishes letters, enabling monitoring under small strain conditions. This work is anticipated to provide an avenue for the development of new intelligent systems for handwriting recognition.

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An Agar gel modulation with melamine foam skeleton for flexible Zn-air batteries

Cited by 19 publications

References 44 publications

Enhanced Semi-interpenetrating Network Quasi-solid Electrolytes Modified by Hollow Porous Nanofibers for Flexible Zinc–Air Batteries

Enhanced Semi-interpenetrating Network Quasi-solid Electrolytes Modified by Hollow Porous Nanofibers for Flexible Zinc–Air Batteries

Organo‐Hydrogel Electrolytes with Versatile Environmental Adaptation for Advanced Flexible Aqueous Energy Storage Devices

Triboelectric Nanogenerators Based on Super-Stretchable Conductive Hydrogels with the Assistance of Deep-Learning for Handwriting Recognition

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