Improved plating/stripping in anode-free lithium metal batteries through electrodeposition of lithiophilic zinc thin films

Afzali, Pooria; Gibertini, Eugenio; Magagnin, Luca

doi:10.1016/j.electacta.2024.144190

Electrochimica Acta

2024

DOI: 10.1016/j.electacta.2024.144190

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Improved plating/stripping in anode-free lithium metal batteries through electrodeposition of lithiophilic zinc thin films

Pooria Afzali,

Eugenio Gibertini,

Luca Magagnin

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2024

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Cited by 4 publications

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Tailoring the Lithium Deposition on Cu Substrate by a Functionalized‐Polysiloxane Layer

Akbar Yuwono,

Yu,

Foeng

et al. 2024

Batteries & Supercaps

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Owing to the high theoretical capacity of 3860 mAh·g‐1 and low redox potential, lithium metal is the best candidate for the development of next generation high‐energy density lithium‐ion batteries. However, notorious lithium dendrites growth and the poor compatibility of liquid electrolyte hinder the commercialization of lithium metal batteries. In this work, an anode‐less system was used to understand the change in lithium deposition on Cu current collector after the additional functionalized‐polysiloxane (PE) layer. The PE structure consists of lithiophobic and lithiophilic side chains which facilitate the uniform lithium deposition on Cu substrate. This evidence was collected by scanning electron microscopy (SEM) after the cycling test of half‐cell configuration and the lithium deposition with different current densities. The reversibility was improved by 5% compared with the bare Cu. In addition, the potential polarization was lowered after the addition of PE layer on bare Cu. Thus, the higher cycle stability (40%) and more stable coulombic efficiency are observed on the PE@Cu||NCM83 cell compared with the bare‐Cu||NCM83 during the cycle test.

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Tailoring the Lithium Deposition on Cu Substrate by a Functionalized‐Polysiloxane Layer

Akbar Yuwono,

Yu,

Foeng

et al. 2024

Batteries & Supercaps

View full text Add to dashboard Cite

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“Dead Lithium” Formation and Mitigation Strategies in Anode‐Free Li‐Metal Batteries

Abdollahifar,

Paolella

2024

Batteries & Supercaps

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Thin lithium‐metal foil is a promising anode material for next‐generation batteries due to its high theoretical specific capacity and low negative potential. However, safety issues linked to dendrite growth, low‐capacity retention, and short cycle life pose significant challenges. Also, practical lithium metal batteries need a negative‐to‐positive electrode ratio as close to 1:1 as possible, which can be achieved through limiting excess lithium or using an "anode‐free" metal battery design. However, both designs experience fast capacity fade due to the irreversible loss of active lithium in the cell, caused by the formation of the solid electrolyte interphase (SEI), dendrite formation and "dead lithium," ‐ refers to lithium that has lost its electronic connection to the anode electrode or current collector. The presence of dead lithium in batteries negatively affects their capacity and lifespan, while also raising internal resistance and generating heat. Additionally, dead lithium encourages the growth of lithium dendrites, which poses significant safety hazards. Within this fundamental review, we thoroughly address the phenomenon of dead lithium formation, assessing its origins, implications on battery performance, and possible strategies for mitigation. The transition towards environmentally friendly and high‐performance metal batteries could be accelerated by effectively tackling the challenge posed by dead lithium.

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Interfacial regulation engineering in anode‐free rechargeable batteries

Hao,

Yan,

et al. 2024

Carbon Neutralization

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Anode‐free rechargeable batteries (AFRBs), equipped with bare collectors at the anode, are potential electrochemical energy storage technology attributed to their simplified cell configuration, high energy density, and cost reduction. Nevertheless, issues including insufficient Coulombic efficiency as well as the formation of the dendrites restrict their practical implementation. In recent years, various strategies have been proposed to overcome the critical issues of AFRBs. Among which, interfacial properties play key roles for achieving high stable AFRBs. In this review, an overview of AFRBs is discussed in the first part. Then, the main strategies based on interfacial regulation engineering toward high‐performance AFRBs are summarized including designing of current collectors, introducing of surface coating layers, modification of electrolytes, separators engineering, cathode materials regulation, and so forth. In addition, some future perspectives for developing AFRBs are proposed. This review will create new avenues on constructing stable AFRBs for advanced energy storage devices.

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Improved plating/stripping in anode-free lithium metal batteries through electrodeposition of lithiophilic zinc thin films

Cited by 4 publications

References 57 publications

Tailoring the Lithium Deposition on Cu Substrate by a Functionalized‐Polysiloxane Layer

Tailoring the Lithium Deposition on Cu Substrate by a Functionalized‐Polysiloxane Layer

“Dead Lithium” Formation and Mitigation Strategies in Anode‐Free Li‐Metal Batteries

Interfacial regulation engineering in anode‐free rechargeable batteries

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