In-situ constructing polyacrylamide interphase enables dendrite-free zinc anode in aqueous batteries

Zhang, Xiaomin; Meng, Xiangjuan; Jiang, Wei; Ling, Min; Yan, Lijing; Liang, Chengdu

doi:10.1016/j.electacta.2021.138106

Cited by 47 publications

(24 citation statements)

References 44 publications

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“…Besides, a group of weak peaks is located at 1022.7 eV (1024.8 eV) and 1046.0 eV (1046.5 eV) for Zn, indicating that metallic zinc is also present in the protective layer . Furthermore, −CN and −NH 2 can be fitted at the binding energies of 397.6 and 399.0 eV (Figure e), which also indicates the adsorption of AM on the Al surface. , The results confirm that the inhibitors protect the aluminum surface from corrosion by establishing a protective layer composed of Zn and ZnO, and AM could adsorb on aluminum or the protective layer to further protect the Al surface.…”

Section: Results and Discussionmentioning

confidence: 99%

“…Also, the absorption peaks of amide I (CO stretching vibration) and amide II (N−H bending vibration) band are located at 1665 and 1607 cm −1 , respectively. 39,40 It could be seen that the peaks of FT-IR on the Al anode are similar to the AM powder, but the location of the adsorption peaks of the Al-AM shifts to a certain degree, which indicates adsorption of the functional groups of AM on the Al surface or the protective layer. 23,33 The complex protective layer could effectively inhibit the self-corrosion of aluminum in the alkaline electrolyte.…”

Section: Dischargementioning

confidence: 96%

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Anode Interfacial Layer Construction via Hybrid Inhibitors for High-Performance Al–Air Batteries

Cheng

Wang

Zheng

et al. 2021

ACS Appl. Mater. Interfaces

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The self-corrosion of aluminum anodes is one of the key issues that hinder the development and application of low-cost and high-energy-density Al–air batteries (AABs). Herein, a hybrid corrosion inhibitor combining ZnO and acrylamide (AM) was developed to construct a dense protective interface on the Al anode to suppress the self-corrosion and enhance the electrochemical performance of AABs. Also, the results show that the hydrogen evolution rate with the optimal combination of hybrid inhibitors is 0.0848 mL cm–2 min–1, corresponding to the inhibition efficiency of 78.03%. The integrated AABs with hybrid inhibitors show remarkable capacities of 1240.6 mA h g–1 (25 mA cm–2) and 2444.1 mA h g–1 (100 mA cm–2) and a high power density of 63.7 mW cm–2. This shows that ZnO dissolves into the electrolyte and forms a loose and porous film on the Al surface. When AM is introduced into the ZnO-containing electrolyte, the adsorption of the amide group of AM on the surface of aluminum and ZnO occurs, which not only controls the growth morphology of ZnO but also enables ZnO to easily aggregate into a layer that is in close contact with the anode, efficiently suppressing self-corrosion. This work opens up the prospect of a corrosion inhibition mechanism for ZnO and AM in alkaline solutions and for developing effective organic/inorganic hybrid inhibitors.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Dischargementioning

confidence: 96%

Anode Interfacial Layer Construction via Hybrid Inhibitors for High-Performance Al–Air Batteries

Cheng

Wang

Zheng

et al. 2021

ACS Appl. Mater. Interfaces

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“…To cope with metal–electrolyte interface instability in ZIBs, one promising strategy is to artificially construct the SEI-like layer with the properties of electron insulation and ion diffusion. Enormous materials including polymer, , inorganic compounds, − and organic/inorganic composites have been evidenced in stabilizing the zinc anode. The zeolitic imidazolate framework-8 (ZIF-8) with a regular porous structure to transfer zinc ions and an insulating feature to block electrons is a promising artificial SEI-like candidate to modify the zinc anode.…”

mentioning

confidence: 99%

Controllably Electrodepositing ZIF-8 Protective Layer for Highly Reversible Zinc Anode with Ultralong Lifespan

Zhang

Zhao

Wan

et al. 2021

J. Phys. Chem. Lett.

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“…In addition, the effect of polyethyleneimine, polyethylene glycol, etc., as an electrolyte additive to zinc electrodeposition mechanism in aqueous zinc-ion batteries have also been reported recently. [95,99,100] Compared to the small molecule organic compound additives, the polymer additives own better chemical and thermal stability, low volatility, and nonflammability, etc.…”

Section: Organic Polymer Additivesmentioning

confidence: 99%

Electrolyte Salts and Additives Regulation Enables High Performance Aqueous Zinc Ion Batteries: A Mini Review

Yang

et al. 2021

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future is not such bright. Therefore, the drawbacks of these organic-based batteries systems motivate us to explore the alternative battery with low-cost, high safety, and long-cycle-life. [20][21][22][23] Compared to nonaqueous batteries, aqueous batteries have the advantages of low cost, better safety, high ionic conductivity, easy processing, low manufacturing cost, etc., so that they are in a better position for large-scale energy storage applications. [24][25][26][27][28] Among them, the aqueous ZIBs have attracted tremendous attention due to their distinct advantages, that is, high gravimetric and volumetric capacity (820 mAh g −1 , 5855 mAh cm −3 ) offered by Zn metal, low redox potential of zinc (−0.763 V vs a standard hydrogen electrode), good stability of zinc metal in water compared to the extremely active lithium, sodium and potassium metals, as well as its highlighted low cost and natural abundance. [3,[29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45] Nevertheless, aqueous ZIBs still face several challenges that hinder their wider utilization: i) the dissolution of cathode materials and obstacles of intercalating into the host materials; [29,30] ii) the irreversible Zn stripping/plating process caused by formation of Zn dendrites and corrosion on the anode; [31,34,35,37,46] iii) the narrow electrochemical window in aqueous electrolyte; [30,33,36] iv) sluggish transport and solvation/desolvation of Zn 2+ . [15,36] All of them impact the capacity, life cycle, and rate property of aqueous ZIBs.Aqueous zinc ion batteries (ZIBs) are regarded as one of the most ideally suited candidates for large-scale energy storage applications owning to their obvious advantages, that is, low cost, high safety, high ionic conductivity, abundant raw material resources, and eco-friendliness. Much effort has been devoted to the exploration of cathode materials design, cathode storage mechanisms, anode protection as well as failure mechanisms, while inadequate attentions are paid on the performance enhancement through modifying the electrolyte salts and additives. Herein, to fulfill a comprehensive aqueous ZIBs research database, a range of recently published electrolyte salts and additives research is reviewed and discussed. Furthermore, the remaining challenges and future directions of electrolytes in aqueous ZIBs are also suggested, which can provide insights to push ZIBs' commercialization.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/smll.202104640.

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In-situ constructing polyacrylamide interphase enables dendrite-free zinc anode in aqueous batteries

Cited by 47 publications

References 44 publications

Anode Interfacial Layer Construction via Hybrid Inhibitors for High-Performance Al–Air Batteries

Anode Interfacial Layer Construction via Hybrid Inhibitors for High-Performance Al–Air Batteries

Controllably Electrodepositing ZIF-8 Protective Layer for Highly Reversible Zinc Anode with Ultralong Lifespan

Electrolyte Salts and Additives Regulation Enables High Performance Aqueous Zinc Ion Batteries: A Mini Review

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