Lithiophilic sites dependency of lithium deposition in Li metal host anodes

Liu, Yuhang; Sun, Jianyu; Hu, Xiaoqi; Li, Yifan; Du, Hongfang; Wang, Ke; Du, Zhuzhu; Gong, Xin; Ai, Wei; Huang, Wei

doi:10.1016/j.nanoen.2021.106883

Cited by 53 publications

(45 citation statements)

References 38 publications

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“…Lithiophilicity is defined as the affinity of Li species to substrates [ 100 ], where Ag [ 101 ], Au [ 102 ], Zn [ 103 ], and ZnO [ 49 ] possessing strong binding energy with Li have so far demonstrated excellent lithiophilic property. Based on theoretical predictions and experimental verifications, we have recently correlated the structure of lithiophilic sites with Li electrochemistry, which reveals the lithiophilic sites dependency of Li deposition behavior in LMAs [ 104 ]. Generally, introducing lithiophilic components within host is beneficial to modulate its Li deposition behavior and the associated nucleation barrier [ 105 ].…”

Section: Lithiophilicity Gradientmentioning

confidence: 99%

Advances in the Emerging Gradient Designs of Li Metal Hosts

Guan

Liu

et al. 2022

Research

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Developing host has been recognized a potential countermeasure to circumvent the intrinsic drawbacks of Li metal anode (LMA), such as uncontrolled dendrite growth, unstable solid electrolyte interface, and infinite volume fluctuations. To realize proper Li accommodation, particularly bottom-up deposition of Li metal, gradient designs of host materials including lithiophilicity and/or conductivity have attracted a great deal of attention in recent years. However, a critical and specialized review on this quickly evolving topic is still absent. In this review, we attempt to comprehensively summarize and update the related advances in guiding Li nucleation and deposition. First, the fundamentals regarding Li deposition are discussed, with particular attention to the gradient design principles of host materials. Correspondingly, the progress of creating different gradients in terms of lithiophilicity, conductivity, and their hybrid is systematically reviewed. Finally, future challenges and perspective on the gradient design of advanced hosts towards practical LMAs are provided, which would provide a useful guidance for future studies.

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Section: Lithiophilicity Gradientmentioning

confidence: 99%

Advances in the Emerging Gradient Designs of Li Metal Hosts

Guan

Liu

et al. 2022

Research

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“…However, under long-term cycling or harsh conditions, the lithiophilic center will fall off or the composition/structure of the lithiophilic center will change and fall off and lose its effectiveness. 125,126 Recently, our research group 127 encapsulated lithiophilic Ag sites in onion-like carbon spheres by simple one-step injection pyrolysis, and found that lithium metal can still preferentially alloy with Ag in the carbon layers to guide the preferential deposition of Li. Huang et al 128 used metal-based lithiophilic sites as a model to study the failure mechanism of lithiophilic sites in three-dimensional hosts under practical conditions.…”

Section: Carbon Materials By Lithiophilic Modificationmentioning

confidence: 99%

Strategies and challenges of carbon materials in the practical applications of lithium metal anode: a review

Jiang

Meng

et al. 2022

Phys. Chem. Chem. Phys.

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“…[1][2][3][4] Unfortunately, during repeated charge-discharge processes, drastic metallic Li dendrites are easy to be generated at the surface of Li anodes. [5][6][7][8] Moreover, the uncontrollable Li dendrites cause a series of issues such as severe volume changes, low Coulombic efficiency (CE) as well as poor cycle life, which impede the commercial application of Li anodes. [9][10][11][12] A large number of theoretical and experimental studies demonstrate that Li dendrite generation mainly originates from the inhomogeneous nucleation of metallic Li as well as the huge concentration gradient of lithium ion and nonuniform electric field.…”

Section: Introductionmentioning

confidence: 99%

“…[ 1–4 ] Unfortunately, during repeated charge–discharge processes, drastic metallic Li dendrites are easy to be generated at the surface of Li anodes. [ 5–8 ] Moreover, the uncontrollable Li dendrites cause a series of issues such as severe volume changes, low Coulombic efficiency (CE) as well as poor cycle life, which impede the commercial application of Li anodes. [ 9–12 ]…”

Section: Introductionmentioning

confidence: 99%

Eliminating Lightning‐Rod Effect of Lithium Anodes via Sine‐Wave Analogous MXene Layers

Chen

Shi

et al. 2022

Advanced Energy Materials

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Lithium metal anodes are regarded as the most promising candidate for rechargeable lithium‐based batteries, but uncontrollable Li dendrites hinder further applications. Here, sine‐wave analogous MXene (Ti3C2Tx) (SWA‐MXene) layers are produced by spreading aqueous MXene dispersion onto the sectional surface of a metallic coil and subsequently drying at room temperature. COMSOL Multiphysics simulations demonstrate that the low curvature in SWA‐MXene layers homogenizes the distributions of lithium ions and electric field, efficiently eliminating the lightning‐rod effect on the surface of aligned electrodes in the process of Li deposition. As a result, the flexible SWA‐MXene layers show a low overpotential for lithium nucleation (≈13.5 mV at 0.05 mA cm−2) and deep plating–stripping capacities up to 40 mAh cm−2, as well as a long cycle life up to 1250 h. Full cells consisting of a SWA‐MXene–Li anode and a LiFePO4 cathode also exhibit a durable cycle life up to 420 cycles at 1088 mA g−1.

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Lithiophilic sites dependency of lithium deposition in Li metal host anodes

Cited by 53 publications

References 38 publications

Advances in the Emerging Gradient Designs of Li Metal Hosts

Advances in the Emerging Gradient Designs of Li Metal Hosts

Strategies and challenges of carbon materials in the practical applications of lithium metal anode: a review

Eliminating Lightning‐Rod Effect of Lithium Anodes via Sine‐Wave Analogous MXene Layers

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