首页|Anode Interfacial Issues in Solid-State Li Batteries:Mechanistic Understanding and Mitigating Strategies

Anode Interfacial Issues in Solid-State Li Batteries:Mechanistic Understanding and Mitigating Strategies

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All-solid-state Li metal batteries(ASSLBs)using inorganic solid electrolyte(SE)are considered promising alternatives to conventional Li-ion batteries,offering improved safety and boosted energy density.While significant progress has been made on improving the ionic conductivity of SEs,the degradation and instability of Li metal/inorganic SE interfaces have become the critical challenges that limit the coulombic efficiency,power performance,and cycling stability of ASSLBs.Understanding the mechanisms of complex/dynamic interfacial phenomena is of great importance in addressing these issues.Herein,recent studies on identifying,understanding,and solving interfacial issues on anode side in ASSLBs are comprehensively reviewed.Typical issues at Li metal/SE interface include Li dendrite growth/propagation,SE cracking,physical contact loss,and electrochemical reactions,which lead to high interfacial resistance and cell failure.The causes of these issues relating to the chemical,physical,and mechanical properties of Li metal and SEs are systematically discussed.Furthermore,effective mitigating strategies are summarized and their effects on suppressing interfacial reactions,improving interfacial Li-ion transport,maintaining interfacial contact,and stabilizing Li plating/stripping are highlighted.The in-depth mechanistic understanding of interfacial issues and complete investigations on current solutions provide foundations and guidance for future research and development to realize practical application of high-performance ASSLB.

all-solid-state Li metal batteriesanode interfacial issuesinterface protection and modificationinterfacial reaction and evolutionli dendrite growth

Jiacheng Wang、Liquan Chen、Hong Li、Fan Wu

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Tianmu Lake Institute of Advanced Energy Storage Technologies,Liyang 213300,China

Henry Royce Institute and Department of Materials,School of Natural Sciences,The University of Manchester,Manchester M13 9PL,UK

Yangtze River Delta Physics Research Center,Liyang 213300,China

Beijing Advanced Innovation Center for Materials Genome Engineering,Key Laboratory for Renewable Energy,Beijing Key Laboratory for New Energy Materials and Devices,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China

School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China

Nano Science and Technology Institute,Uni

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Outstanding Youth Fund Project by the Department of Science and Technology of Jiangsu ProvinceKey R&D Project funded by the Department of Science and Technology of Jiangsu ProvinceKey Program-Automobile Joint Fund of National Natural Science Foundation of ChinaGeneral Program of National Natural Science Foundation of ChinaGeneral Program of National Natural Science Foundation of BeijingCultivation project of leading innovative experts in Changzhou CityNational Overseas Highlevel Expert recruitment ProgramTalent Program of Chinese Academy of Sciences"Scientist Studio Program Funding"from Yangtze River Delta Physics Research CenterTianmu Lake Institute of Advanced Energy Storage TechnologiesScience and Technology Research Institute of China Three Gorges Corporation

BK20220045BE2020003U1964205519723342202058CQ20210003E1JF021E11TIES-SS0001202103402

2023

10.1002/eem2.12613

能源与环境材料(英文)

能源与环境材料(英文)

CSCD
ISSN：
年,卷(期)：2023.6(4)
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