Confined Li metal storage in porous carbon frameworks promoted by strong Li–substrate interaction

Yun, Jonghyeok; Shin, Hong Rim; Won, Eun-Seo; Kang, Hyon Chol; Lee, Jun Young

doi:10.1016/j.cej.2021.132897

Cited by 21 publications

(11 citation statements)

References 46 publications

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“…Besides, MOFs can also be integrated with Cu foil to form various gradient skeletons. Yun et al coated a Ag layer underneath MOF-based skeleton to build a lithiophilicity gradient, which induces bottom-up Li deposition and hence improved cycling stability of LMAs [219]. Man et al designed a conductivity gradient skeleton consisted by a fully carbonized conductive ZIF-67 upper layer and a partially carbonized insulating ZIF-67 bottom layer [220].…”

Section: Mofs-cu Scaffoldsmentioning

confidence: 99%

Present and future of functionalized Cu current collectors for stabilizing lithium metal anodes

Liu¹,

Li²,

Sun³

et al. 2023

Nano Research Energy

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Li metal has been recognized as the most promising anode materials for next-generation high-energy-density batteries, however, the inherent issues of dendrite growth and huge volume fluctuations upon Li plating/stripping normally result in fast capacity fading and safety concerns. Functionalized Cu current collectors have so far exhibited significant regulatory effects on stabilizing Li metal anodes (LMAs), and hold a great practical potential owing to their easy fabrication, low-cost and good compatibility with the existing battery technology. In this review, a comprehensive overview of Cu-based current collectors, including planar modified Cu foil, 3D architectured Cu foil and nanostructured 3D Cu substrates, for Li metal batteries is provided. Particularly, the design principles and strategies of functionalized Cu current collectors associated with their functionalities in optimizing Li plating/stripping behaviors are discussed. Finally, the critical issues where there is incomplete understanding and the future research directions of Cu current collectors in practical LMAs are also prospected. This review may shed light on the critical understanding of current collector engineering for high-energy-density Li metal batteries.

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Section: Mofs-cu Scaffoldsmentioning

confidence: 99%

Present and future of functionalized Cu current collectors for stabilizing lithium metal anodes

Liu¹,

Li²,

Sun³

et al. 2023

Nano Research Energy

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Section: Figurementioning

confidence: 99%

“…Accordingly, the resulting gradient host (G-CZC) presents durable cycling with a low overpotential of about 15.0 mV for 920 h. Compared with ZnO, metals can directly alloy with Li without conversion reaction, hence no Li loss during predeposition [107]. Yun et al [81] found that the insertion of Ag between MOF-derived carbon (MOF-C) layer and Cu substrate (MOF-C/Cu@Ag) could significantly lower the nucleation barrier of Li and, more importantly, enable a strong Li-substrate interaction for Li metal confinement. With the aids of in-operando synchrotron X-ray diffraction and SEM tests, they revealed that Ag can preferentially react with Li to form lithiophilic Li-Ag solid solution alloy during the early stage of Li plating, which induces Li deposition at the bottom of carbon layer.…”

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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“…Porous metals have many applications in daily life and industry, such as filtration, sound absorber [1,2], thermal energy storage [3], electrochemical isolation equipment or biomedical materials [4]. Meanwhile, powder metallurgy techniques are the preferred method of manufacturing porous metals [5].…”

Section: Related Workmentioning

confidence: 99%

ARIMA-FEM Method with Prediction Function to Solve the Stress–Strain of Perforated Elastic Metal Plates

Chen

Dai

Zheng

2022

Metals

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Stress analysis and deformation prediction have always been the focuses of the field of mechanics. The accurate force prediction in plate deformation plays important role in the production, processing and performance analysis of materials. In this paper, we propose an ARIMA-FEM method, which can be used to solve some mechanical problems of 2D porous elastic plate. We have given a detailed theory and solving steps of ARIMA-FEM. In addition, three numerical examples are given to predict the stress–strain of thin porous elastic metal plates. This article uses CST, LST and Q4 elements to discrete the rectangular plates, square plates and circle plates with holes. As for variable force prediction, this paper compared with linear regression, nonlinear regression and neural network prediction, and the results show that the ARIMA method has a higher prediction accuracy. Furthermore, we calculate the numerical solution at four mesh scales, and the numerical convergence is consistent with the theoretical convergence, which also shows the effectiveness of our method. The image smoothing algorithm is applied to keep edge information with high resolution, which can more concisely describe the plate internal changes. Finally, the application scope of ARIMA-FEM, model expansion, superconvergence analysis and other issues have been given enlightening views in the discussion section. In fact, this algorithm combined statistics and mechanics. It also reflects the knowledge integration of interdisciplinary and uses it better to serve practical applications.

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Confined Li metal storage in porous carbon frameworks promoted by strong Li–substrate interaction

Cited by 21 publications

References 46 publications

Present and future of functionalized Cu current collectors for stabilizing lithium metal anodes

Present and future of functionalized Cu current collectors for stabilizing lithium metal anodes

Advances in the Emerging Gradient Designs of Li Metal Hosts

ARIMA-FEM Method with Prediction Function to Solve the Stress–Strain of Perforated Elastic Metal Plates

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