Towards high-performance lithium metal anodes via the modification of solid electrolyte interphases

查看全文 作　　者：Zhen [2]Hou;Jiaolong [3]Zhang;Wenhui [1]Wang;Qianwen [2]Chen;Baohua [3]Li;Chaolin [1]Li

机构地区：[1]Shenzhen Key Laboratory of Organic Pollution Prevention and Control,Environmental Science and Engineering Research Center,Harbin Institute of Technology,Shenzhen 518055,Guangdong,China;[2]Department of Chemistry,Southern University of Science and Technology(SUSTech),Shenzhen 518055,Guangdong,China;[3]Shenzhen Key Laboratory on Power Battery Safety Research and Shenzhen Geim Graphene Center,Tsinghua Shenzhen International Graduate School,Shenzhen 518055,Guangdong,China

出　　处：《Journal of Energy Chemistry》索引2020年第29卷第6期,共12页

基　　金：financially supported by the National Natural Science Foundation of China(Grant no.51678182);China Postdoctoral Science Foundation(Grant no.2019M650663);Start-up Grant of Harbin Institute of Technology,Shenzhen。 摘　　要：Li metal has been regarded as one of the most promising anodes for high-energy-density storage systems due to its high theoretical capacity and lowest electrochemical potential.Unfortunately,an unstable and non-uniform solid electrolyte interphase(SEI)deriving from the spontaneous reaction between Li metal anode and electrolyte causes uneven Li deposition,resulting in the growth of Li dendrites and low Coulombic efficiency,which have greatly hindered the practical application of Li metal batteries.Thus,the construction of a stable SEI is an effective approach to suppress the growth of Li dendrites and enhance the electrochemical performances of Li metal anode.In this review,we firstly introduce the formation process of inferior SEI of Li metal anode and the corresponding challenges caused by the unstable SEI.Next,recent progresses to modify SEI layer through the regulation of electrolyte compositions and exsitu protective coating are summarized.Finally,the remained issues,challenges,and perspectives are also proposed on the basis of current research status and progress. 关键词：Li metal ANODE Coulombic efficiency DENDRITES Solid ELECTROLYTE INTERPHASES Coating

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Towards high-performance lithium metal anodes via the modification of solid electrolyte interphases

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