Dual‐Network Structured Hydrogel Electrolytes Engaged Solid‐State Rechargeable Zn‐Air/Iodide Hybrid Batteries

Liu, Qingqing; Xia, Chenfeng; He, Cong; Guo, Wei; Wu, Zi Ping; Li, Zhen; Zhao, Qiang

doi:10.1002/ange.202210567

Cited by 14 publications

(1 citation statement)

References 66 publications

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“…From chemical bonding, the unsaturated polyester on the surface of AMWP particles comes under the action of intra-and intermolecular hydrogen bonding, making AMWP particles agglomerate into one. In the FTIR spectra of AMWP and analytically pure CaCO 3 , shown in Figure 1d, the absorption bands at 2870 cm −1 and 2930 cm −1 in AMWP represent the symmetric and asymmetric stretching vibrations of the C-H bond [28], indicating that AMWP contains organic groups. The absorption bands at 1724 and 1278 cm −1 represent the C=O bond and C−O bond stretching vibrations, respectively, in the ester group [29], confirming the existence of the ester group in AMWP, thus indicating the presence of polyester.…”

Section: Materials Designmentioning

confidence: 99%

Effects of Maleic Anhydride-Grafted Polyethylene on the Properties of Artificial Marble Waste Powder/Linear Low-Density Polyethylene Composites with Ultra-High Filling Content

Die,

Ma,

et al. 2023

Materials

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The need to reach carbon neutrality as soon as possible has made the use of recycled materials widespread. However, the treatment of artificial marble waste powder (AMWP) containing unsaturated polyester is a very challenging task. This task can be accomplished by converting AMWP into new plastic composites. Such conversion is a cost-effective and eco-friendly way to recycle industrial waste. However, the lack of mechanical strength in composites and the low filling content of AMWP have been major obstacles to its practical application in structural and technical buildings. In this study, a composite of AMWP/linear low-density polyethylene (LLDPE) filled with a 70 wt% AMWP content was fabricated using maleic anhydride-grafted polyethylene as a compatibilizer (MAPE). The mechanical strength of the prepared composites is excellent (tensile strength ~18.45 MPa, impact strength ~51.6 kJ/m2), making them appropriate as useful building materials. Additionally, laser particle size analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, and thermogravimetric analysis were used to examine the effects of maleic anhydride-grafted polyethylene on the mechanical properties of AMWP/LLDPE composites and its mechanism of action. Overall, this study offers a practical method for the low-cost recycling of industrial waste into high-performance composites.

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Section: Materials Designmentioning

confidence: 99%

Effects of Maleic Anhydride-Grafted Polyethylene on the Properties of Artificial Marble Waste Powder/Linear Low-Density Polyethylene Composites with Ultra-High Filling Content

Die,

Ma,

et al. 2023

Materials

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Locking Water Molecules Loss of PAA Hydrogel for Flexible Zinc‐Air Battery with NaCl Doping

Chen

Wang

et al. 2023

Adv Funct Materials

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Flexible zinc‐air batteries have received widespread attention due to their high specific energy and eco‐friendly environment. However, the water in the hydrogel is easily lost to the external environment because of the semi‐open structure zinc‐air batteries, leading to performance degradation of the batteries. Here a saline gel of NaCl‐KOH‐PAA (sodium chloride‐potassium hydroxide‐polyacrylic acid) without soaking in the alkaline solution before use is designed, refining the grid structure of the hydrogel and reducing water loss through NaCl doping. Meanwhile, the gel exhibits no significant decrease in ion conductivity before and after NaCl doping and can maintain stability of around 170 and 150 mS cm−1 at room temperature and −20 °C, respectively. The results demonstrate that the lifetime of flexible zinc‐air batteries with NaCl‐doped hydrogel can be extended by nearly 50%. The NaCl doping gel also displays superior flexibility under extreme physical deformation conditions. Moreover, the phenomenon of hydrogel delamination with NaCl doping is observed and the mechanism of gel water retention is uncovered. These findings will pave the way for developing flexible zinc‐air battery.

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Precisely Constructing Orbital‐Coupled Fe─Co Dual‐atom Sites for High‐Energy‐Efficiency Zn–Air/Iodide Hybrid Batteries

Qiao,

You,

Kong

et al. 2024

Advanced Materials

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Rechargeable Zn‐air batteries (ZABs) are promising for energy storage and conversion. However, the high charging voltage and low energy efficiency hinder their commercialization. Herein, we address these challenges by employing precisely constructed multifunctional Fe‐Co diatomic site catalyst (FeCo‐DACs) and integrating iodide/iodate redox into ZABs to create Zinc‐air/iodide hybrid batteries (ZAIHBs) with highly efficient multifunctional catalyst. The strong coupling between the 3d orbitals of Fe and Co weakens the excessively strong binding strength between active sites and intermediates, enhancing the catalytic activities for oxygen reduction/evolution reaction and iodide/iodate redox. Consequently, FeCo‐DACs exhibits outstanding bifunctional oxygen catalytic activity with a small potential gap (ΔE = 0.66 V) and outstanding stability. Moreover, an outstanding catalytic performance towards iodide/iodate redox is obtained. Therefore, FeCo‐DAC‐based ZAIHBs exhibit high energy efficiency of up to 75% at 10 mA cm‐2 and excellent cycling stability (72% after 500 hours). This research offers critical insights into the rational design of DACs, and paves the way for high‐energy efficiency energy storage devices.This article is protected by copyright. All rights reserved

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Dual‐Network Structured Hydrogel Electrolytes Engaged Solid‐State Rechargeable Zn‐Air/Iodide Hybrid Batteries

Cited by 14 publications

References 66 publications

Effects of Maleic Anhydride-Grafted Polyethylene on the Properties of Artificial Marble Waste Powder/Linear Low-Density Polyethylene Composites with Ultra-High Filling Content

Effects of Maleic Anhydride-Grafted Polyethylene on the Properties of Artificial Marble Waste Powder/Linear Low-Density Polyethylene Composites with Ultra-High Filling Content

Locking Water Molecules Loss of PAA Hydrogel for Flexible Zinc‐Air Battery with NaCl Doping

Precisely Constructing Orbital‐Coupled Fe─Co Dual‐atom Sites for High‐Energy‐Efficiency Zn–Air/Iodide Hybrid Batteries

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