Effects of a nanometrically formed lithiophilic silver@copper current collector on the electrochemical nucleation and growth behaviors of lithium metal anodes

Cho, Ki-Yeop; Hong, Suk Ki; Kwon, JunHwa; Song, Heon; Kim, Subin; Jo, Seunghyun; Eom, KwangSup

doi:10.1016/j.apsusc.2021.149578

Cited by 15 publications

(9 citation statements)

References 32 publications

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“…4(f)), leading to the accumulation of high-resistive interfaces composed of residual SEIs and dead Li. 14,77 In the case of p -CuCl@Cu, a similar cycling stability is observed because dendritic Li is also formed on the top surface of the architecture (Fig. 4(g)).…”

Section: Resultssupporting

confidence: 52%

Metal shields with crystallographic discrepancies incorporated into integrated architectures for stable lithium metal batteries

Cho,

Jung

et al. 2024

Energy Environ. Sci.

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Section: Resultssupporting

confidence: 52%

Metal shields with crystallographic discrepancies incorporated into integrated architectures for stable lithium metal batteries

Cho,

Jung

et al. 2024

Energy Environ. Sci.

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“…The R SEI of Ag@Cu is lower than that of Cu and fluctuates less because the lithiophilicity of Ag regulates the lithium nuclei density and size, resulting in smooth electrodeposition and stable SEI. 46 However, the size of the semicircle at medium frequencies decays rapidly for the Ag@Cu before 30 cycles. In comparison, the variation in R ct is more minor for the bare Cu within 100 cycles.…”

Section: Resultsmentioning

confidence: 99%

Study on Stable Lithiophilic Ag Modification Layer on Copper Current Collector for High Coulombic-Efficiency Lithium Metal Anode

Xia¹,

Wang²,

Wang³

et al. 2023

J. Electrochem. Soc.

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High energy-density lithium metal batteries will be crucial in improving the driving range and promoting electric vehicles. The lithophilic modification layer is usually introduced to improve CE and cycle stability. However, the stability of the lithophilic modified layer in long-term cycling and lithophilic modification strategies for anode current collectors in all-solid-state anode-free lithium batteries are rarely investigated. Here, we prove the failure process of the silver lithophilic modified layer towards lithium metal anode through electrochemical cycling in liquid electrolytes. Combined with electrochemical impedance spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy analysis, the failure is due to the formation of solid electrolyte interface on the Ag surface and the silver particles' peeling off from the current collector during cycling, which forms "dead silver". And we construct carbon-incorporated lithium phosphorous oxynitride (LiCPON) -based all-solid-state Li/Cu half-cells to evaluate the stability of the lithophilic Ag layer. The introduction of Ag between solid electrolyte (LiCPON) and current collector enables the long-term cycle (367th) of all-solid-state Li/Cu half cells with high CE. Our work clarifies the issue of Ag deactivation and provides a method for evaluating modified layers' use and building stable electrolyte/anode interfaces in all-solid-state anode-free lithium batteries.

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“…main problems related to Li anode and popular solutions. [3,[18][19][20][21][22] ability of gallium-indium and illustrated the mechanism of the healable Li alloy anode (HLAA). When Li ion was reduced at the alloy collector, the LiÀ Ga alloying resulted in solidification and delamination.…”

Section: Types and Main Progress Of Current Collectormentioning

confidence: 99%

Copper Current Collector: The Cornerstones of Practical Lithium Metal and Anode–Free Batteries

Zhou,

Qin,

Zhan

2024

ChemPhysChem

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Comparing with the commercial Li‐ion batteries, Li metal secondary batteries (LMB) exhibit unparalleled energy density. However, many issues have hindered the practical application. As an element in lithium metal and anode‐free batteries, the role of current collector is critical. Comparing with the cathode current collector, more requirements have been imposed on anode current collector as the anode side is usually the starting point of thermal runaway and many other risks, additionally, the anode in Li metal battery very likely determines the cycling life of full cell. In the review, we first give a systematic introduction of copper current collector and the related issues and challenges, and then we summarize the main approaches that have been mentioned in the research, including Cu current collector with 3D architecture, lithophilic modification of the current collector, artificial SEI layer construction on Cu current collector and carbon or polymer decoration of Cu current collector. Finally, we give a prospective comment of the future development in this field.

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Effects of a nanometrically formed lithiophilic silver@copper current collector on the electrochemical nucleation and growth behaviors of lithium metal anodes

Cited by 15 publications

References 32 publications

Metal shields with crystallographic discrepancies incorporated into integrated architectures for stable lithium metal batteries

Metal shields with crystallographic discrepancies incorporated into integrated architectures for stable lithium metal batteries

Study on Stable Lithiophilic Ag Modification Layer on Copper Current Collector for High Coulombic-Efficiency Lithium Metal Anode

Copper Current Collector: The Cornerstones of Practical Lithium Metal and Anode–Free Batteries

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