Building the Robust Fluorinated Electrode-Electrolyte Interface in Rechargeable Batteries:From Fundamentals to Applications  

作　　者：Xiangjun Pu Shihao Zhang Dong Zhao Zheng-Long Xu Zhongxue Chen Yuliang Cao 

机构地区：[1]Hubei Key Laboratory of Electrochemical Power Sources,College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,Hubei,China [2]Key Laboratory of Hydraulic Machinery Transients,Ministry of Education,School of Power and Mechanical Engineering,Wuhan University,Wuhan 430072,Hubei,China [3]Department of Industrial and Systems Engineering,The Hong Kong Polytechnic University,Hung Hom,Hong Kong,China

出　　处：《Electrochemical Energy Reviews》2024年第1期671-699,共29页电化学能源评论(英文)

基　　金：financially supported by the National Natural Science Foundation of China(U22A20438,U20A20249);the Intergovernmental International Science and Technology Innovation Cooperation Project(2019YFE010186);the Key R&D Plan of Hubei Province(2023BAB036);the Joint Postdoc Scheme from PolyU under the project code of 1-YY4L.

摘　　要：Endowed by high energy density and high conversion efficiency between chemical and electric energy,rechargeable batteries are indispensable in a variety of different energy-level applications,ranging from portable devices(W-level)to electric vehicles(kW-level)and large-scale energy storage systems(MW-level).However,many lingering scientific and technical challenges still inhibit their wide applications,including low Coulombic efficiency,inferior cycle/rate performance,and safety hazards.After decades of extensive research,it is widely accepted that these challenges are largely influenced by the interfacial chemistry occurring at the electrode-electrolyte interface(EEI).EEI includes both the solid electrolyte interphase on the anode and the cathode electrolyte interphase on the cathode,and the great protective capability of the fluorinated interface is gradually unveiled.Although intensive research efforts have been devoted to fabricating various ex situ artificial and in situ interfacial fluorinated layers,the fundamental approaches to the fluorinated interface are still inferior and not systematically categorized and analyzed.In this contribution,we have confined and proposed five principles regarding obtaining fluorinated interfaces from pretreatment,solvent-separated ion pairs,contact ion pairs,aggregates,and feasible decomposition from numerous reports and built up a systematic design framework to guide the construction of the protective fluorinated interfaces for rechargeable batteries,offering target-oriented guidelines to tackle interface issues in secondary batteries.

关 键 词：Lithium fluoride Solid electrolyte interphase(SEI) Cathode electrolyte interphase(CEI) Design principles Rechargeable batteries 

分 类 号：TM9[电气工程—电力电子与电力传动]