Towards understanding the nucleation and growth mechanism of Li dendrites on zinc oxide-coated nickel electrodes

Arsalani, Nasser; Hagopian, Arthur; Sayegh, Syreina; Bechelany, Mikhaël; Filhol, Jean‐Sébastien; Younesi, Reza; Stievano, Lorenzo; Monconduit, Laure

doi:10.1039/d2ta04466h

Cited by 3 publications

(3 citation statements)

References 57 publications

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“…A recent trend in recent papers has been to modify current collectors to improve lithium nucleation and growth behavior. ,,− Previously we have shown that the use of ZnO-coated Ni foam leads to the formation of a lower surface area lithium and overall leads to better electrochemical performance . Yet, achieving maximum electrochemical performance requires the optimization of the ZnO layer thickness.…”

Section: Resultsmentioning

confidence: 99%

Assessing Coulombic Efficiency in Lithium Metal Anodes

et al. 2023

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Although lithium metal and anode-free rechargeable batteries (LMBs and AFBs) are phenomenal energy storage systems, the formation of lithium deposits with high surfaces during repeated plating−stripping cycles has hindered their practical applications. Recently, extensive efforts have been made to prevent the growth of high-surface lithium deposition, e.g., electrolyte modification, artificial coating deposition, lithiophilic current collectors, composite lithium metal electrodes, etc. In most of these approaches, Coulombic efficiency (CE) has been used as a quantifiable indicator for the reversibility of the LMBs and AFBs. The interpretation and validation of research results, however, are challenging since the measurement of CE is affected by several parameters related to battery assembly and testing. This study aims to unveil the interplay of several potentially overlooked parameters regulating the CE, such as stripping cutoff voltage, electrolyte quantity, precycling to form a solid electrode interphase (SEI), and electrode surface modification, by applying two alternative electrochemical methods. The hidden aspects of nucleation overpotential revealed by studying these parameters, as well as their influence on the composition and stability of the SEI, are discussed. Overall, this work provides an insightful understanding of the methods and parameters used for assessing the performance of LMBs and AFBs.

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Section: Resultsmentioning

confidence: 99%

Assessing Coulombic Efficiency in Lithium Metal Anodes

et al. 2023

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“…It has been revealed that zinc prefers to deposit on the sites with lower surface energy during the zinc deposition process, which leads to the formation of needle-like dendrites [13]. Consequently, there is a higher electric field at the tip of the zinc dendrite due to the modulation of the electric field on the uneven surface of the zinc foil disc [14]. As shown in Figure 1a, zinc dendrites are gradually extended towards the cathode materials and eventually lead to a short-circuit.…”

Section: Introductionmentioning

confidence: 99%

Bimetal-Initiated Concerted Zn Regulation Enabling Highly Stable Aqueous Zn-Ion Batteries

Yin,

Liu,

Zhu

et al. 2024

Batteries

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Aqueous zinc ion batteries are highly sought after for the next generation of sustainable energy storage systems. However, their development is significantly impeded by the presence of undesired zinc dendrites, which greatly reduce their cycle life. It is well-received that surface passivation by introducing foreign metals represents a compelling measure to enhance the stability of Zn anodes. Nevertheless, the vast potential of effecting concerted interplay between multiple metal elements for enhanced overall performance in Zn ion batteries remains elusive, due to the overwhelming challenge in creating uniform textures from hetero-units and understanding the mechanism underlying the synergistic performance gain. In this work, an innovative bimetallic overlaying strategy is proposed that renders possible the synergy between AgZn3 and CuZn5 in effecting uniform Zn deposition in a laterally confined and compact manner. The seeded growth of Zn on the bimetal-modulated interface effectively reduces the nucleation potential barrier, yielding a low nucleation overpotential (25 mV). In full cell testing with a commercial MnO2 applied as the cathode, superb cycling stability, surpassing the results reported in previous works, is achieved. The cell delivers an outstanding remaining capacity of 215 mA h g−1 after 300 cycles with almost no capacity degradation observed. The simple and highly efficient bimetal design, which synergizes the strengths of distinct metals, has the potential to drive innovations in the development of multicomponent aqueous Zn batteries with exceptional performance.

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“…22,28 Meanwhile, the lithiophilic ZnO facilitates the uniform Li nucleation and increases the lateral Li atom diffusion rate. [29][30][31] Due to the synergistic effect between BP and ZnO, uniform Li deposition is achieved. Consequently, Li metal anodes with the ZnO@BP nanosheet coating (ZnO@BP/Li) exhibit enhanced interface kinetics and excellent cycling performances in symmetric cells.…”

Section: Introductionmentioning

confidence: 99%

Activating the electrode–electrolyte interface via a ZnO@black phosphorus modulation layer for dendrite-free Li metal anodes

Li,

Zhang,

Xiao

et al. 2024

Mater. Chem. Front.

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Towards understanding the nucleation and growth mechanism of Li dendrites on zinc oxide-coated nickel electrodes

Abstract: While lithium metal is considered an ideal anode for the next generation of high-energy-density batteries, some major issues such as huge volume change and continuous dendrite formation during lithium plating...

Cited by 3 publications

References 57 publications

Assessing Coulombic Efficiency in Lithium Metal Anodes

Assessing Coulombic Efficiency in Lithium Metal Anodes

Bimetal-Initiated Concerted Zn Regulation Enabling Highly Stable Aqueous Zn-Ion Batteries

Activating the electrode–electrolyte interface via a ZnO@black phosphorus modulation layer for dendrite-free Li metal anodes

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