Anti‐Corrosion for Reversible Zinc Anode via a Hydrophobic Interface in Aqueous Zinc Batteries (Adv. Energy Mater. 9/2022)

Guan, Kailin; Li, Tao; Yang, Rong; Zhang, Haonan; Wang, Nengze; Wan, Houzhao; Cui, Jian; Zhang, Jun; Wang, Hanbin; Wang, Hao

doi:10.1002/aenm.202270037

Cited by 29 publications

(32 citation statements)

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“…Besides, the introduction of PVDF into SC‐PPS appears to reduce the hydrophilicity of the SC‐PPS layer (Figure S16, Supporting Information), while a hydrophobic layer could enhance the corrosion resistance of zinc toward aqueous electrolytes. [ 40–42 ]…”

Section: Resultsmentioning

confidence: 99%

Tuning Ion Transport at the Anode‐Electrolyte Interface via a Sulfonate‐Rich Ion‐Exchange Layer for Durable Zinc‐Iodine Batteries

Zhang

Huang

Guo

et al. 2023

Advanced Energy Materials

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Rechargeable aqueous zinc‐iodine batteries (ZIBs) are considered a promising newly‐developing energy‐storage system, but the corrosion and dendritic growth occurring on the anode seriously hinder their future application. Here, the corrosion mechanism of polyiodide is revealed in detail, showing that it can spontaneously react with zinc and cause rapid battery failure. To address this issue, a sulfonate‐rich ion‐exchange layer (SC‐PSS) is purposely constructed to modulate the transport and reaction chemistry of polyiodide and Zn2+ at the zinc/electrolyte interface. The resulting ZIBs can work properly over 6000 cycles with high‐capacity retention (90.2%) and reversibility (99.89%). Theoretical calculations and experimental characterization reveal that the SC‐PPS layer blocks polyiodide permeation through electrostatic repulsion, while facilitating desolvation of Zn(H2O)62+ and restricting undesirable 2D diffusion of Zn2+ by chemisorption.

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Section: Resultsmentioning

confidence: 99%

Tuning Ion Transport at the Anode‐Electrolyte Interface via a Sulfonate‐Rich Ion‐Exchange Layer for Durable Zinc‐Iodine Batteries

Zhang

Huang

Guo

et al. 2023

Advanced Energy Materials

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“…Thanks to this, the lifetime of the sensor is greatly improved, which is beneficial to its long‐term and stable NO 2 detection. In follow‐up research, it is believed that through the in‐depth research on charging technology such as altering the charging current and charging duration, the selection of appropriate electrodes and corresponding metal ion salt and the rational optimization of platting/stripping of the Zn anode, [ 60–62 ] the electrode recovery of the sensor and its lifetime can be further improved.…”

Section: Resultsmentioning

confidence: 99%

A Self‐Powered, Rechargeable, and Wearable Hydrogel Patch for Wireless Gas Detection with Extraordinary Performance

Wang

Ding

et al. 2023

Adv Funct Materials

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Flexible gas sensors play an indispensable role in diverse applications spanning from environmental monitoring to portable medical electronics. Full wearable gas monitoring system requires the collaborative support of high‐performance sensors and miniaturized circuit module, whereas the realization of low power consumption and sustainable measurement is challenging. Here, a self‐powered and reusable all‐in‐one NO2 sensor is proposed by structurally and functionally coupling the sensor to the battery, with ultrahigh sensitivity (1.92%/ppb), linearity (R2 = 0.999), ultralow theoretical detection limit (0.1 ppb), and humidity immunity. This can be attributed to the regulation of the gas reaction route at the molecular level. The addition of amphiphilic zinc trifluoromethanesulfonate (Zn(OTf)2) enables the H2O‐poor inner Helmholtz layer to be constructed at the electrode–gel interface, thereby facilitating the direct charge transfer process of NO2 here. The device is then combined with a well‐designed miniaturized low‐power circuit module with signal conditioning, processing and wireless transmission functions, which can be used as wearable electronics to realize early and remote warning of gas leakage. This study demonstrates a promising way to design a self‐powered, sustainable, and flexible gas sensor with high performance and its corresponding wireless sensing system, providing new insight into the all‐in‐one system of gas detection.

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“…This suggests that RGO sheets are slightly hydrophobic possibly due to the carbon skeletons, which is suggested to be advantageous to suppressing side reactions and improving anode performance. [ 58 ] Additionally, the coordination of carboxylate group and Zn 2+ has been further demonstrated to be beneficial to weakening the interaction between Zn 2+ and H 2 O molecules and forming cross‐linking H‐bond network to suppress side reactions such as HER. [ 59 ] Thus, H 2 O molecules around zinc ions are resisted to penetrate deeply, while zinc ions accelerate over serial zincophilic sites toward Zn substrate for deposition.…”

Section: Resultsmentioning

confidence: 99%

Intrinsic Interfacial Dynamic Engineering of Zincophilic Microbrushes via Regulating Zn Deposition for Highly Reversible Aqueous Zinc Ion Battery

Huang

Jia

et al. 2022

Advanced Materials

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intensified dramatically owing to their excellent safety and considerable affordability. [2] Among them, aqueous zinc-ion batteries (AZBs) have triggered an overwhelming surge to achieve satisfactory performance and lifespan, [3] with Zn metal usually utilized as the anodes. [4] However, despite the high volumetric capacity of Zn (5851 mAh mL −1 ) and its abundance, there are still tricky challenges on Zn anodes to promote the implementation of AZBs. [5] At present, Zn anodes suffer from poor Coulombic efficiency (CE) due to irreversible plating and stripping, with unexpected Zn dendrites and undesirable side reactions. [6] Specifically, Zn dendrites cause the "dead" Zn through fracture and disconnection from the bulk Zn plates, resulting in separator puncture and battery short circuit. [7] Besides, H 2 evolution reaction (HER) is not negligible as a major competing reaction at the Zn anode. Considering the reduction potential of H 2 O/H 2 (−0.41 V vs SHE) higher than Zn/Zn 2+ (−0.76 V vs SHE) in neutral electrolytes, HER is thermodynamically preferred. [8] Therefore, the design of robust Zn anodes with rational compositions and specific structures is crucial to the stable AZBs.In recent years, numerous efforts have been exerted to boost the anode durability and stability by adjusting the electrolyte and the Zn electrode. In respect of electrolytes, enhanced reversibility of Zn can be realized by applying gel electrolytes, [9] highly concentrated salts, [10] and functional additives. [11] For the Aqueous rechargeable zinc ion batteries are promising efficient energy storage systems due to remarkable safety and satisfactory capacity. However, zinc metal anode instability including dendrite growth and side reactions severely hinders widespread applications. Herein, zincophilic microbrushes have been in situ anchored on zinc plates through simple freeze-drying and mild reduction of graphene oxide, successfully overcoming these thorny issues. By introducing suitable oxygen-containing groups, the microbrushes exhibit a good affinity for zinc ions, thereby providing sufficient depositing sites, promoting zinc plating and stripping during cycling, and suppressing side reactions. The delicate zincophilic microbrushes can not only function as protective layer to guide the deposition of zinc ions, but also act as highspeed pathways to redistribute the zinc ion flux for rapid kinetics. Consequently, the microbrushes-covered zinc anode displays long lifespan and good durability, whenever in symmetric cell or full battery tests. This work paves a feasible bridge to design advanced aqueous anodes by architecting both structures and compositions of metal coverings.

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Anti‐Corrosion for Reversible Zinc Anode via a Hydrophobic Interface in Aqueous Zinc Batteries (Adv. Energy Mater. 9/2022)

Cited by 29 publications

References 0 publications

Tuning Ion Transport at the Anode‐Electrolyte Interface via a Sulfonate‐Rich Ion‐Exchange Layer for Durable Zinc‐Iodine Batteries

Tuning Ion Transport at the Anode‐Electrolyte Interface via a Sulfonate‐Rich Ion‐Exchange Layer for Durable Zinc‐Iodine Batteries

A Self‐Powered, Rechargeable, and Wearable Hydrogel Patch for Wireless Gas Detection with Extraordinary Performance

Intrinsic Interfacial Dynamic Engineering of Zincophilic Microbrushes via Regulating Zn Deposition for Highly Reversible Aqueous Zinc Ion Battery

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