Developing artificial solid-state interphase for Li metal electrodes: recent advances and perspective

Wang, Yanyan; Li, Mingnan; Yang, Fuhua; Mao, Jianfeng; Guo, Zaiping

doi:10.26599/emd.2023.9370005

Cited by 19 publications

(1 citation statement)

References 111 publications

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“…Conventional liquid electrolytes hold serious safety concerns, including leakage, fire, and even explosion. SSEs are considered as the solution to these safety issues due to their excellent thermal and electrochemical stability. − However, the low conductivity makes SEEs difficult to perform at high rates and the complex fabrication process makes them costly. − The high interfacial resistance between electrolytes and electrodes also limits the practical applications of SSEs. − Therefore, SSEs with a high conductivity and stable interfacial contact are urgently desired. , Fortunately, the emergence of HEMs provides unprecedented flexibility in regulating the composition and electronic structure of the SSEs. This opens new avenues to design SSEs with high entropy capable of handling these tough issues in solid-state batteries from the viewpoint of entropy.…”

Section: Hees In Working Batteriesmentioning

confidence: 99%

Working Principles of High-Entropy Electrolytes in Rechargeable Batteries

Ren,

Liu,

Guo

et al. 2024

ACS Energy Lett.

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Section: Hees In Working Batteriesmentioning

confidence: 99%

Working Principles of High-Entropy Electrolytes in Rechargeable Batteries

Ren,

Liu,

Guo

et al. 2024

ACS Energy Lett.

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Engineering Triple‐Phase Interfaces around the Anode toward Practical Alkali Metal–Air Batteries

Ge,

Hu,

et al. 2024

Advanced Materials

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Alkali metal–air batteries (AMABs) promise ultrahigh gravimetric energy densities, while the inherent poor cycle stability hinders their practical application. To address this challenge, most previous efforts were devoted to advancing the air cathodes with high electrocatalytic activity. Recent studies have underlined the solid–liquid–gas triple‐phase interface around the anode can play far more significant roles than previously acknowledged by the scientific community. Besides the bottlenecks of uncontrollable dendrite growth and gas evolution in conventional alkali metal batteries, the corrosive atmospheric gases, intermediate oxygen species, and redox mediators in AMABs cause more severe anode corrosion and structural collapse, posing greater challenges to the stabilization of the anode triple‐phase interface. This work aims to provide a timely perspective on the anode interface engineering for durable AMABs. Taking the Li–air battery as a typical example, we have a critical review of the latest developed anode stabilization strategies, including formulating novel electrolytes to build protective interphases and alleviate corrosive attacks, fabricating advanced anodes to improve their anti‐corrosion capability, and designing functional separator to shield the corrosive species. Finally, we highlight the remaining scientific and technical issues from the prospects of anode interface engineering, particularly materials system engineering, for the practical use of AMABs. This article is protected by copyright. All rights reserved

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Amorphous High‐Entropy Alloy Interphase for Stable Lithium Metal Batteries

Zheng,

Lv,

Luo

et al. 2024

Advanced Energy Materials

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The unstable anode/electrolyte interphase induces severe lithium dendrite growth hindering the practical application of lithium metal batteries. The lithium alloy interphase presents a promising strategy for regulating Li+ plating/stripping behavior. However, binary or ternary alloys are insufficient to address various challenges in lithium metal batteries and the high temperature required for alloy preparation hampers their direct applications on lithium metal surfaces. In this study, a high‐entropy alloy (HEA) interphase is developed on lithium metal surfaces via room‐temperature magnetron sputtering, showcasing multifunctional advantages in regulating Li+ plating/stripping behavior. The cocktail effect of the (HEA) facilitated the formation of a homogeneous amorphous interphase with abundant lithiophilic sites and magnetic properties, promoting uniform Li+ nucleation and deposition. Furthermore, the high mechanical strength and corrosion resistance of HEA provided physicochemical stability for the lithium anode interphase, consistently suppressing dendrite growth. Consequently, lithium metal anodes with HEA interphases exhibited robust cycling performance lasting over 4000 h at 2 mA cm−2. The LFP full battery demonstrated high‐capacity retention of 90% with an average Coulombic efficiency of 99.7%. Thus, the HEA interphases on lithium metal surfaces offer controllable regulation of Li+ deposition behavior through high‐entropy manipulation, opening novel strategies for stable lithium metal batteries.

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Developing artificial solid-state interphase for Li metal electrodes: recent advances and perspective

Cited by 19 publications

References 111 publications

Working Principles of High-Entropy Electrolytes in Rechargeable Batteries

Working Principles of High-Entropy Electrolytes in Rechargeable Batteries

Engineering Triple‐Phase Interfaces around the Anode toward Practical Alkali Metal–Air Batteries

Amorphous High‐Entropy Alloy Interphase for Stable Lithium Metal Batteries

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