All-Solid-State Thin-Film Lithium-Sulfur Batteries  

作　　者：Renming Deng Bingyuan Ke Yonghui Xie Shoulin Cheng Congcong Zhang Hong Zhang Bingan Lu Xinghui Wang 

机构地区：[1]College of Physics and Information Engineering,Institute of Micro-Nano Devices and Solar Cells,Fuzhou University,Fuzhou 350108,People’s Republic of China [2]Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,Fujian,People’s Republic of China [3]Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering,Changzhou 213000,People’s Republic of China [4]School of Physics and Electronics,Hunan University,Changsha 410082,People’s Republic of China

出　　处：《Nano-Micro Letters》2023年第5期326-338,共13页纳微快报（英文版）

基　　金：supported by National Natural Science Foundation of China(No.U22A20118);Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China(No.2021ZR146,2021ZZ122);Award Program for Fujian Minjiang Scholar Professorship。

摘　　要：Lithium-sulfur(Li-S)system coupled with thin-film solid electrolyte as a novel high-energy micro-battery has enormous potential for complementing embedded energy harvesters to enable the autonomy of the Internet of Things microdevice.However,the volatility in high vacuum and intrinsic sluggish kinetics of S hinder researchers from empirically integrating it into allsolid-state thin-film batteries,leading to inexperience in fabricating all-solid-state thin-film Li-S batteries(TFLSBs).Herein,for the first time,TFLSBs have been successfully constructed by stacking vertical graphene nanosheets-Li2S(VGsLi2S)composite thin-film cathode,lithium-phosphorous-oxynitride(LiPON)thin-film solid electrolyte,and Li metal anode.Fundamentally eliminating Lipolysulfide shuttle effect and maintaining a stable VGs-Li2S/LiPON interface upon prolonged cycles have been well identified by employing the solid-state Li-S system with an“unlimited Li”reservoir,which exhibits excellent longterm cycling stability with a capacity retention of 81%for 3,000 cycles,and an exceptional high temperature tolerance up to 60℃.More impressively,VGs-Li2S-based TFLSBs with evaporated-Li thin-film anode also demonstrate outstanding cycling performance over 500 cycles with a high Coulombic efficiency of 99.71%.Collectively,this study presents a new development strategy for secure and high-performance rechargeable all-solid-state thin-film batteries.

关 键 词：All-solid-state thin-film batteries Li-S batteries Vertical graphene nanosheets Lithium phosphorous oxynitride Li2S 

分 类 号：TB383.2[一般工业技术—材料科学与工程] TM912[电气工程—电力电子与电力传动]