Boosting the electrochemical performance of 3D composite lithium metal anodes through synergistic structure and interface engineering

Chen, Yuanmao; Ke, Xi; Cheng, Yi‐Feng; Fan, Mouping; Wu, Wenjing; Huang, Xinyue; Liang, Yu-Jing; Zhong, Yicheng; Ao, Zhimin; Lai, Yanqing; Wang, Guoxiu; Shi, Zhongqi

doi:10.1016/j.ensm.2019.12.023

Cited by 86 publications

(40 citation statements)

References 43 publications

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“…Carbon fiber is a type of carbonaceous material widely used as a porous current collector for Li metal anode. However, the surface of the carbon fiber shows unsatisfactory wettability with metallic Li, so lithiophilic mediums, such as Co 3 O 4 ‐carbon nanoflake, [ 123 ] Cu x O, [ 124 ] MOF, [ 125 ] nanoporous Au, [ 126,127 ] Co 3 O 4 nanofiber, [ 128 ] TiN, [ 129 ] LiC 6 layers, [ 130 ] SiO 2 –TiO 2 , [ 131 ] CNTs, [ 132,133 ] Si, [ 134 ] Zn nanoclusters, [ 135 ] and vertical graphene nanosheets [ 136,137 ] are employed to enable the uniform nucleation of Li metal during Li plating process ( Figure a). In addition, carbon allotropes with unique architectures, such as carbon sphere‐based materials, [ 138–140 ] wrinkled graphene cages, [ 141 ] 3D N‐doped nanoporous graphene, [ 142 ] graphene films, [ 143–148 ] hollow carbonized eggplant, [ 149 ] and CNTs networks, [ 150–152 ] provide enhanced wettability with Li metal, exhibiting fast charge transfer for the Li/Li + redox reaction and a uniform lithium stripping/plating process (Figure 9b–d).…”

Section: Current Strategies To Circumvent the Challenges Of Lithium Mmentioning

confidence: 99%

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

Qin

Holguin

Mohammadiroudbari

et al. 2021

Adv Funct Materials

163

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Lithium metal is the “holy grail” anode for next‐generation high‐energy rechargeable batteries due to its high capacity and lowest redox potential among all reported anodes. However, the practical application of lithium metal batteries (LMBs) is hindered by safety concerns arising from uncontrollable Li dendrite growth and infinite volume change during the lithium plating and stripping process. The formation of stable solid electrolyte interphase (SEI) and the construction of robust 3D porous current collectors are effective approaches to overcoming the challenges of Li metal anode and promoting the practical application of LMBs. In this review, four strategies in structure and electrolyte design for high‐performance Li metal anode, including surface coating, porous current collector, liquid electrolyte, and solid‐state electrolyte are summarized. The challenges, opportunities, perspectives on future directions, and outlook for practical applications of Li metal anode, are also discussed.

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Section: Current Strategies To Circumvent the Challenges Of Lithium Mmentioning

confidence: 99%

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

Qin

Holguin

Mohammadiroudbari

et al. 2021

Adv Funct Materials

163

View full text Add to dashboard Cite

show abstract

“…Considering the energy density sacrifice and scalable preparation, carbon‐based host is much more promising for their light weight, good electrical conductivity, and excellent chemical stability. However, the challenge still lies in most of the carbon materials could not be well wetted by molten Li and extra lithiophilic sites (Ag, [ 18 ] Au, [ 19 ] Si, [ 20 ] Zn, [ 21 ] etc.) are usually needed.…”

Section: Figurementioning

confidence: 99%

High‐Performance Three‐Dimensional Li Anode Scaffold Enabled by Homogeneous Zn Nanoclusters

Xia

Zhang

Zhao

et al. 2020

Small

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The rapid development of modern society have stimulated intensive research on advanced energy storage systems with high energy density and high safety to meet the rising demand for large-scale energy storage systems, such as electric vehicles and smart grid. As one of the most promising anode candidates, Li metal has received much attention owing to its ultrahigh theoretical capacity (3860 mAh g −1 ), the lowest electrochemical potential (−3.040 V vs standard hydrogen electrode) and low density (0.534 g cm −3 ). [1,2] Nevertheless, the practical large-scale application of Li metal has long been fettered by serious safety challenges caused by the uncontrollable Li deposition during Li plating/stripping process, resulting in lithium dendrite growth which could penetrate the separator leading to battery failureThe large-scale implementation of lithium metal batteries (LMBs) has long been plagued by the uncontrollable Li deposition triggered safety issues. Herein, a lithiophilic three-dimensional Li anode scaffold, which is prepared by molten Li infusion aided by confined growth of low-cost Zn clusters, is rationally constructed for high-performance LMBs. Owing to the synergy of the carbon host and the effective regulation from the Zn nanoclusters, the large volumetric change of Li metal is well mitigated and shows a smooth and dendrite-free behavior. The Li anode scaffold can deliver much improved Coulombic efficiency, superior rate performance, and long cycle lifespan with much lower voltage polarization. Furthermore, the half cells of Li anode scaffold paired with LiFePO 4 /LiCoO 2 /sulfur can achieve a higher specific capacity and longer stable cycling life than those with conventional Li foil. The Li|LFP cells can achieve a stable cycling over 250 cycles at 1C with a higher capacity retention of ≈90.8%, and a higher initial discharge capacity of 924.6 mAh g −1 with a high capacity retention over 300 cycles can also be obtained in Li|S cells at 1C. This work demonstrates a cost-effective and scalable strategy for stable Li metal anode toward next-generation and high-performance LMBs. www.advancedsciencenews.com

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“…Lithium-ion batteries (LIBs) are the dominant power sources for electronic devices, grid-scale energy storage, and especially for electric vehicles [1][2][3]. However, the current cathode and anode materials of LIBs are reaching their theoretical energy density, which cannot meet the ever-growing energy requirements of electrical vehicles [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Homogeneous bottom-growth of lithium metal anode enabled by double-gradient lithiophilic skeleton

Zhang

Zheng

Liu

et al. 2021

Journal of Energy Chemistry

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Boosting the electrochemical performance of 3D composite lithium metal anodes through synergistic structure and interface engineering

Cited by 86 publications

References 43 publications

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

High‐Performance Three‐Dimensional Li Anode Scaffold Enabled by Homogeneous Zn Nanoclusters

Homogeneous bottom-growth of lithium metal anode enabled by double-gradient lithiophilic skeleton

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