Current‐Density Regulating Lithium Metal Directional Deposition for Long Cycle‐Life Li Metal Batteries

Mao, Heng; Yu, Wei; Cai, Zhuan-Yun; Liu, Guixian; Liu, Limin; Su, Yaqiong; Kou, Huari; Xi, Kai; Li, Benqiang; Zhao, Hongyang; Da, Xinyu; H, Wu; Yan, Wei; Ding, Shujiang

doi:10.1002/ange.202105831

Cited by 5 publications

(3 citation statements)

References 50 publications

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“…Therefore, the Ni 3 N@N-rGO/Cu electrode displays a stable plating/ stripping process for 1400 h at 1 mA cm −2 with an overpotential of 30 mV and shows a smooth and dense surface of Li metal anode (Figure 3D). 58 Additionally, Mao et al 59 placed a cellulose/graphene carbon composite aerogel (CCA) layer between the anode and current collector to construct 3D composite anodes. Benefiting from the high current density in the CCA layer, Li is preferentially deposited in the layer, which can suppress the growth of Li dendrites and enhance the cyclic stability of the LMBs (Figure 3E).…”

Section: Graphene As a Modified Interfacial Layermentioning

confidence: 99%

“…(E) Schematic diagram of the Li deposition on Cu current collector and CCA layer. Reproduced with permission: Copyright 2021, John Wiley and Sons 59 . (F) Schematic of the Li deposition behavior on bare Cu foil, Ni foam, and 3D graphene@Ni foam.…”

Section: Carbon‐based Interface Engineering For LI Metal Anodesmentioning

confidence: 99%

“…Additionally, Mao et al 59 placed a cellulose/graphene carbon composite aerogel (CCA) layer between the anode and current collector to construct 3D composite anodes. Benefiting from the high current density in the CCA layer, Li is preferentially deposited in the layer, which can suppress the growth of Li dendrites and enhance the cyclic stability of the LMBs (Figure 3E).…”

Section: Carbon‐based Interface Engineering For LI Metal Anodesmentioning

confidence: 99%

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Carbon‐based interface engineering and architecture design for high‐performance lithium metal anodes

Zhu

Yang

et al. 2023

Carbon Energy

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Metallic lithium (Li) is considered the “Holy Grail” anode material for the next‐generation of Li batteries with high energy density owing to the extraordinary theoretical specific capacity and the lowest negative electrochemical potential. However, owing to inhomogeneous Li‐ion flux, Li anodes undergo uncontrollable Li deposition, leading to limited power output and practical applications. Carbon materials and their composites with controllable structures and properties have received extensive attention to guide the homogeneous growth of Li to achieve high‐performance Li anodes. In this review, the correlation between the behavior of Li anode and the properties of carbon materials is proposed. Subsequently, we review emerging strategies for rationally designing high‐performance Li anodes with carbon materials, including interface engineering (stabilizing solid electrolyte interphase layer and other functionalized interfacial layer) and architecture design of host carbon (constructing three‐dimension structure, preparing hollow structure, introducing lithiophilic sites, optimizing geometric effects, and compositing with Li). Based on the insights, some prospects on critical challenges and possible future research directions in this field are concluded. It is anticipated that further innovative works on the fundamental chemistry and theoretical research of Li anodes are needed.

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Section: Graphene As a Modified Interfacial Layermentioning

confidence: 99%

Section: Carbon‐based Interface Engineering For LI Metal Anodesmentioning

confidence: 99%

Section: Carbon‐based Interface Engineering For LI Metal Anodesmentioning

confidence: 99%

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Carbon‐based interface engineering and architecture design for high‐performance lithium metal anodes

Zhu

Yang

et al. 2023

Carbon Energy

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Oriented Structures for High Safety, Rate Capability, and Energy Density Lithium Metal Batteries

Wang,

Tieu,

et al. 2024

Advanced Science

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Lithium metal batteries (LMBs) have emerged in recent years as highly promising candidates for high‐density energy storage systems. Despite their immense potential, mutual constraints arise when optimizing energy density, rate capability, and operational safety, which greatly hinder the commercialization of LMBs. The utilization of oriented structures in LMBs appears as a promising strategy to address three key performance barriers: 1) low efficiency of active material utilization at high surface loading, 2) easy formation of Li dendrites and damage to interfaces under high‐rate cycling, and 3) low ionic conductivity of solid‐state electrolytes in high safety LMBs. This review aims to holistically introduce the concept of oriented structures, provide criteria for quantifying the degree of orientation, and elucidate their systematic effects on the properties of materials and devices. Furthermore, a detailed categorization of oriented structures is proposed to offer more precise guidance for the design of LMBs. This review also provides a comprehensive summary of preparation techniques for oriented structures and delves into the mechanisms by which these can enhance the energy density, rate capability, and safety of LMBs. Finally, potential applications of oriented structures in LMBs and the crucial challenges that need to be addressed in this field are explored.

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Recent advances in li metal anode protection for high performance lithium-sulfur batteries

Han,

Lee,

Kim

et al. 2024

Discov Chem Eng

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Lithium-sulfur batteries (LSBs) have garnered significant attention as a promising next-generation rechargeable battery, offering superior energy density and cost-effectiveness. However, the commercialization of LSBs faces several challenges, including the ionic/electronic insulating nature of the active materials, lithium polysulfide (LiPS) shuttle effect, volume expansion/contraction of the cathode, and issues with Li metal anode. Despite numerous efforts to address these challenges, previous studies have predominantly been conducted under mild conditions such as high electrolyte-to-sulfur (E/S) ratio, low sulfur loading, and excess Li metal, which cover issues related to Li metal anode. However, for realizing high-energy–density LSBs, practical conditions such as low E/S ratio, high sulfur loading, and limited Li metal are essential. Under these conditions, the increased current on Li metal and higher LiPS concentration exacerbate issues with Li metal anode such as dendrite growth, dead Li, high reactivity with electrolyte, and high reactivity with LiPSs. These problems lead to rapid failure of Li metal, significantly impacting the electrochemical performance of LSBs. Consequently, protecting Li metal anode is crucial for the practical LSBs. This paper introduces the challenges associated with Li metal anode in LSBs and reviews research focused on protecting Li metal anode in each battery component: anode, electrolyte, cathode, and separator/interlayer. Finally, we discuss future research directions of each component towards practical LSBs. Graphical Abstract

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Current‐Density Regulating Lithium Metal Directional Deposition for Long Cycle‐Life Li Metal Batteries

Cited by 5 publications

References 50 publications

Carbon‐based interface engineering and architecture design for high‐performance lithium metal anodes

Carbon‐based interface engineering and architecture design for high‐performance lithium metal anodes

Oriented Structures for High Safety, Rate Capability, and Energy Density Lithium Metal Batteries

Recent advances in li metal anode protection for high performance lithium-sulfur batteries

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