Lithium-sulfur(Li-S)batteries exhibit outstanding energy density and material sustainability.Enormous effects have been devoted to the sulfur cathode to address redox kinetics and polysulfide intermediates shuttle.Recent attentions are gradually turning to the protection of the lithium metal anodes,since elec-trochemical performances of Li-S batteries are closely linked to the working efficiency of the anode side,especially in pouch cells that adopt stringent test protocols.This Perspective article summarizes criti-cal issues encountered in the lithium metal anode,and outlines possible solutions to achieve efficient working lithium anode in Li-S batteries.The lithium metal anode in Li-S batteries shares the common failure mechanisms of volume fluctuation,nonuniform lithium flux,electrolyte corrosion and lithium pul-verization occurring in lithium metal batteries with oxide cathodes,and also experiences unique polysul-fide corrosion and massive lithium accumulation.These issues can be partially addressed by developing three-dimensional scaffold,exerting quasi-solid reaction,tailoring native solid electrolyte interphase(SEI)and designing artificial SEI.The practical evaluation of Li-S batteries highlights the importance of pouch cell platform,which is distinguished from coin-type cells in terms of lean electrolyte-to-sulfur ratio,thin lithium foil,as well as sizable total capacity and current that are loaded on pouch cells.This Perspective underlines the development of practically efficient working lithium metal anode in Li-S batteries.

Xiao-Zhong Fan;Meng Liu;Ruiqi Zhang;Yuezhou Zhang;Songcan Wang;Haoxiong Nan;Yunhu Han;Long Kong

Frontiers Science Center for Flexible Electronics and Xi'an Institute of Flexible Electronics(IFE),Northwestern Polytechnical University,Xi'an 710129,China;Ningbo Institute of Northwestern Polytechnical University,Ningbo 315103,China;School of Science,Hainan University,Haikou 570228,China

中国化学快报（英文版）

[1]Xiao-Zhong Fan;Meng Liu;Ruiqi Zhang;Yuezhou Zhang;Songcan Wang;Haoxiong Nan;Yunhu Han;Long Kong-.An odyssey of lithium metal anode in liquid lithium-sulfur batteries)[J].中国化学快报（英文版）,2022(10):4421-4427

odyssey,verization,polysul

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