Chemically resistant Cu–Zn/Zn composite anode for long cycling aqueous batteries

Cai, Zhao; Ou, Yangtao; Wang, Jindi; Xiao, Run; Fu, Lin; Zhu, Yujun; Zhan, Renmin; Sun, Yongming

doi:10.1016/j.ensm.2020.01.032

Cited by 323 publications

(295 citation statements)

References 38 publications

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“…Although the deepest corrosion pit reached 132.2 µm as detected by energy dispersive spectroscopy, the corrosion did not stop because the as-formed loose layer could allow electrolyte to contact the bulk Zn. 65 Similarly, Zn corrosion was also observed in ZnCl 2 and Zn(TFSI) 2 solutions ( Figure 5D). 42,88 The self-corrosion of active Zn metal will lead to serious battery capacity decay.…”

Section: Causes and Effectsmentioning

confidence: 67%

“…56 In addition, Au, Ti 3 C 2 T x MXene paper, and CuZn have also been proved to be beneficial to Zn deposition as confirmed by the experimental results. [63][64][65] Lattice-matched substrate Generally, Zn is inclined to grow with its original lattice in the early growth stage due to the lattice-match principle. 57 The Zn foil with a high exposed (001) facet may induce Zn 2+ to perform mismatch-strain-free deposition.…”

Section: Zincophilic Interfacementioning

confidence: 99%

“…Apart from the theoretical explanations, Zn metal corrosion behavior also has been confirmed by abundant experiments. 42,65,88 As shown in Figure 5B, the chemical corrosion behavior of Zn anode in ZnSO 4 electrolyte was investigated by X-ray diffraction (XRD) and Zn 4 (OH) 6 SO 4 was observed after Zn anode was immersed in 3 mol ZnSO 4 for 10 days, suggesting the quick chemical corrosion of Zn metal in aqueous electrolyte. Then, the Zn 4 (OH) 6 SO 4 was hydrated to Zn 4 (OH) 6 SO 4 •5H 2 O.…”

Section: Causes and Effectsmentioning

confidence: 99%

“…89 More seriously, byproducts will induce dendrites because they can distribute on the electrode surface unevenly and increase the impedance of a battery ( Figure 5F,G). 43,65…”

Section: Causes and Effectsmentioning

confidence: 99%

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Issues and solutions toward zinc anode in aqueous zinc‐ion batteries: A mini review

et al. 2020

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Aqueous zinc-ion batteries (ZIBs) have been intensively investigated as potential energy storage devices on account of their low cost, environmental benignity, and intrinsically safe merits. With the exploitation of highperformance cathode materials, electrolyte systems, and in-depth mechanism investigation, the electrochemical performances of ZIBs have been greatly enhanced. However, there are still some challenges that need to be overcome before its commercialization. Among them, the obstinate dendrites, corrosion, and hydrogen evolution reaction (HER) on Zn anodes are critical issues that severely limit the practical applications of ZIBs. To address these issues, various strategies have been proposed, and tremendous progress has been achieved in the past few years. In this article, we analyze the origins and effects of the dendrites, corrosion, and HER on Zn anodes in neutral and mildly acid aqueous solutions at first. And then, a scientific understanding of the fundamental design principles and strategies to suppress these problems are emphasized. Apart from these, this article also puts forward some requirements for the practical applications of Zn anodes as well as several cost-effectivemodifying strategies. Finally, perspectives on the future development of Zn anodes in aqueous solutions are also briefly anticipated. This article provides pertinent insights into the challenges on anodes for the development of highperformance ZIBs, which will greatly contribute to their practical applications. K E Y W O R D S corrosion, hydrogen evolution reaction, Zn anode, Zn dendrites 1 | INTRODUCTION As a result of the ongoing crisis in the depletion of conventional fossil fuels, renewable clean energy sources, such as solar energy, wind energy, hydropower, geothermal, and nuclear energy, are rapidly developing. 1,2 Nevertheless, it remains an extreme challenge to efficiently store the energy generated by those renewable

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Section: Causes and Effectsmentioning

confidence: 67%

Section: Zincophilic Interfacementioning

confidence: 99%

Section: Causes and Effectsmentioning

confidence: 99%

“…89 More seriously, byproducts will induce dendrites because they can distribute on the electrode surface unevenly and increase the impedance of a battery ( Figure 5F,G). 43,65…”

Section: Causes and Effectsmentioning

confidence: 99%

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Issues and solutions toward zinc anode in aqueous zinc‐ion batteries: A mini review

et al. 2020

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“…La falta de generación de corriente en las CCM con electrodos de Zn-Zn en comparación con los Zn-Cu, podría deberse a la corrosión que sufre el zinc cuando está en solución liquida, lo cual daña parte de la superficie del electrodo e impide una buena transferencia de electrones, afectando de esta manera el rendimiento del sistema. [44]. Así también puede deberse al valor estándar de la potencia del Cu (+0.337 V) que es mayor que el del Zn (-0.763 V, lo que significa que el Cu puede aceptar mayor cantidad de electrones que el Zn, favoreciendo a la transferencia de electrones [31].…”

Section: Resultados Y Analisisunclassified

Bioelectricidad a partir de la levadura Saccharomyces cerevisiae a través de celdas de combustible microbiana de bajo costo

Benites¹,

Rojas-Flores²,

Cruz-Noriega³

et al. 2020

Proceedings of the 18th LACCEI International Multi-Conference for Engineering, Education, and Technology: Engineering, Integrat

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In this research was used the yeast Sacharomyces cerevisiae as a fuel in microbial fuel cells using Zn-Zn and Zn-Cu electrodes, in order to study which of these two systems produced greater bioelectricity. The yeast Sacharomyces cerevisiae media (API 20 C AUX) was successfully identified (86%). The microbial fuel cell with Zn-Cu electrodes managed to generate higher voltage than the cells with Zn-Zn electrodes, the maximum voltage generation peak being 0.761 and 0.0089 V respectively. Both cells showed slightly acidic and neutral pH during monitoring. The maximum power density values and current density shown by the Zn-Cu cell was 8,196 mW/cm2 to 8,383 mA/cm2 respectively, on the other hand, the Zn-Zn cell was able to generate 0.5684 mW/cm2 to 0.238 mA/cm2 of the density of power and current density. This research work gives a new way of producing bioelectricity using low cost microbial fuel cell using as a fuel a yeast widely used in the beer industry.

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Eliminating Dendrites and Side Reactions via a Multifunctional ZnSe Protective Layer toward Advanced Aqueous Zn Metal Batteries

Zhang

et al. 2021

Adv Funct Materials

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The development of aqueous Zn metal batteries (AZMBs) is impeded by severe corrosion, H2 evolution, and dendrite formation issues. In addition, the inability of AZMBs to achieve a large capacity also hinders their commercialization. Here, a multifunctional ZnSe protective layer is reported to synchronously solve the above issues. The ZnSe layer can efficiently provide anticorrosion while also suppressing hydrogen evolution. Systematic analyses of the mechanism suggest that the low Zn affinity of ZnSe and the unbalanced charge distribution at the interface can promote a uniform distribution of Zn2+ and accelerate Zn2+ migration, thus realizing dendrite‐free behavior. Therefore, the Zn@ZnSe symmetric cell exhibits notable rate performance and cycling stability (1500 h). Moreover, this symmetric cell can still stabilize with a low polarization (50 mV), even at 10 mA cm−2 with 5 mAh cm−2. The full cell paired with MnO2 achieves a long lifespan (1800 cycles) with a Coulombic efficiency near 100%. Therefore, this strategy for eliminating dendrites and side reactions at a high rate with a large capacity provides a promising solution for the development of AZMBs.

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Chemically resistant Cu–Zn/Zn composite anode for long cycling aqueous batteries

Cited by 323 publications

References 38 publications

Issues and solutions toward zinc anode in aqueous zinc‐ion batteries: A mini review

Issues and solutions toward zinc anode in aqueous zinc‐ion batteries: A mini review

Bioelectricidad a partir de la levadura Saccharomyces cerevisiae a través de celdas de combustible microbiana de bajo costo

Eliminating Dendrites and Side Reactions via a Multifunctional ZnSe Protective Layer toward Advanced Aqueous Zn Metal Batteries

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