Integrating multi-length scale high resolution 3D imaging and modelling in the characterisation and identification of mechanical failure sites in electrochemical dendrites

Biton, Moshiel; Tariq, Farid; Yufit, Vladimir; Chen, Zhangwei; Brandon, Nigel P.

doi:10.1016/j.actamat.2017.09.008

Cited by 34 publications

(28 citation statements)

References 17 publications

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“…Due to the ion‐confinement by internal coordinate bonds of Zn 2+ and SA, [ 24c ] the deposited Zn on zinc anode formed uniformly on the zinc surface, where zinc flakes were found by SEM observation ( Figure a,b). Although thin Zn nanowires were formed under high current density charge (Figure 6c), no large dendrite [ 39 ] was found. Despite ZnO would be formed on the zinc anode using dilute NaCl/SA gel electrolyte, there is also no full‐sized dendrite found (Figure 6d,e), compared with long dendrites found in 1 m NaOH solution electrolyte (Figure 6f,g), indicating the dendrite free advantage of the gel electrolyte.…”

Section: Resultsmentioning

confidence: 99%

High‐Performance Aqueous Na–Zn Hybrid Ion Battery Boosted by “Water‐In‐Gel” Electrolyte

Pan

Wang

Zhao

et al. 2021

Adv Funct Materials

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Aqueous hybrid Na–Zn ion batteries (ASZIBs) are promising for large‐scale energy storage due to their low cost and potential for high output voltage. However, most ASZIBs show limited discharge voltage (<2.0 V) and capacity (<100 mAh g–1) due to inefficient usage of the dual ions. In this study, a novel large‐electrochemical‐window “water‐in‐gel” electrolyte based CuHCF‐CNT/Zn Na–Zn hybrid battery is proposed, which achieves a high extraction voltage of Na ion (2.1 V vs Zn/Zn2+), together with a large discharge specific capacity (260 mAh g–1) thanks to the Zn‐ion insertion, delivering a superior energy density of 440 Wh kg–1. The hybrid battery also shows a high capacity retention of 96.8% after 450 cycles. Moreover, an ultrahigh discharge capacity of 1250 mAh g–1 is achieved when further coupled with the Zn‐O2 reaction, delivering the promising application of ion intercalation and metal–air hybrid battery.

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Section: Resultsmentioning

confidence: 99%

High‐Performance Aqueous Na–Zn Hybrid Ion Battery Boosted by “Water‐In‐Gel” Electrolyte

Pan

Wang

Zhao

et al. 2021

Adv Funct Materials

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“…[ 78 ] As displayed in Figure 3 a,b, the morphology of the dendrites was tree‐like in an alkaline electrolyte. [ 79 ] The process from nucleation to growth is also shown in Figure 3a. The 3D reconstructed tomography images (Figure 3c,d) further revealed that long dendrites grew vertically on the Zn surface, and the final structure after running for 15 min at 10 mA appeared as a dense dendritic array of various heights (up to 200 µm), which could easily pierce the separator and cause short circuits.…”

Section: Conventional Characterization Methods In Azmbsmentioning

confidence: 99%

Section: Conventional Characterization Methods In Azmbsmentioning

confidence: 99%

Comprehensive Analyses of Aqueous Zn Metal Batteries: Characterization Methods, Simulations, and Theoretical Calculations

Zhang

Hou

2021

Advanced Energy Materials

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Aqueous zinc metal batteries (AZMBs) are regarded as competitive candidates for next‐generation energy storage owing to their low cost, high performance, high safety, and high environmental friendliness. However, serious issues, including Zn dendrites, chemical corrosion, H2 evolution, and sluggish Zn2+ diffusion kinetics, have largely impeded the commercial application of AZMBs. To understand these issues in depth and identify countermeasures, comprehensive analyses of AZMBs have continuously been developed. In this review, a detailed overview of the analytical techniques used to study AZMBs, including characterization methods, simulations, and theoretical calculations is presented, which provides a comprehensive toolbox for further research. Conventional characterization methods that provide preliminary information are first summarized. Various in situ techniques, including visualization and spectral characterization, are then discussed. These advanced real‐time monitoring techniques contribute to a deeper understanding of the battery failure mechanism. Simulations and theoretical calculations are then presented in detail, enabling an in‐depth investigation of the mechanism at the atomic level. Theoretical analyses can not only explore the mechanism in more detail, but also play a key role in guiding research and predicting future directions. Finally, the challenges and perspective of comprehensive analyses of AZMBs are discussed.

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“…(2014) reported the application of synchrotron x-ray tomography (3D imaging) to study the mechanism and kinetics of dendrite formation and monitoring the growth of multiple dendrites in zinc-air systems [23]. Biton et al (2017) studied the degradation of zinc-air batteries due to zinc dendrite growth via tomographic techniques and 3D imaging. They suggested that the points of failure were located on the dendrite necks connecting to the base and that the dendrite's mechanical failure occurred at the bottom of the dendrites ( Fig.…”

Section: Dendrite Formationmentioning

confidence: 99%

“…This review discusses that the concentration gradient and the uniform distribution of the electric field can be tuned using various methods which can ultimately reduce dendrite formation and growth. [24] Elsevier, (b) dendrite growth evolution of electrodeposited zinc (c) the effect of surface energy anisotropy on dendritic morphology [25], (d) cross-sectional of zinc deposits (separator) (e) (dark blue) zinc deposits and (light blue) zinc grown inside (porous separator) [27].…”

Section: Dendrite Formationmentioning

confidence: 99%

Current status and technical challenges of electrolytes in zinc–air batteries: An in-depth review

Hosseini

Soltani

2021

Chemical Engineering Journal

106

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In the past few years, there has been a growing level of interest in the research and development of energy storage systems such as batteries. This is a direct consequence of the soaring rise in global energy demand across various commercial and industrial sectors. Lithium ion batteries have set out a feasible horizon for widespread deployment as small-scale energy storage devices due to their high efficiency and cyclability. However, the availability and cost of lithium have limited the commercial deployment of large-scale systems. On the other hand, zinc-air batteries have demonstrated comparable efficiencies and have been reported to be suitable replacements for lithium batteries in large-scale applications. Nevertheless, more research has been undertaken to address the issues associated with the cycling processes of these batteries. Secondary zinc-air batteries are yet to be commercially proven feasible due to the low charge/discharge cycle life of electrodes. The main problems of secondary alkaline zinc-air batteries are dendritic growth resulting in an alternation of morphology and structure, self-dissolution and the consequent occurrence of hydrogen evolution reactions. However, by and large, inefficient electrolytes are the main culprits responsible for the reduced performance of zinc-air batteries. Therefore, a comprehensive review of current advancements in the development of suitable electrolytes to promote zinc-air batteries towards commercial application will provide a perspective for future rechargeable zinc-air batteries. In this in-depth review, the effects of the types of electrolytes and their properties on the electrochemical 2 performance of Zn anode have been discussed. A demonstration of the current research status and challenges set upon the large-scale deployment of zinc-air batteries will facilitate the educated steering of future research directions in this critically important realm.

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Integrating multi-length scale high resolution 3D imaging and modelling in the characterisation and identification of mechanical failure sites in electrochemical dendrites

Cited by 34 publications

References 17 publications

High‐Performance Aqueous Na–Zn Hybrid Ion Battery Boosted by “Water‐In‐Gel” Electrolyte

High‐Performance Aqueous Na–Zn Hybrid Ion Battery Boosted by “Water‐In‐Gel” Electrolyte

Comprehensive Analyses of Aqueous Zn Metal Batteries: Characterization Methods, Simulations, and Theoretical Calculations

Current status and technical challenges of electrolytes in zinc–air batteries: An in-depth review

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