Merso, Semaw KebedeSemaw KebedeMersoTekaligne, Teshager MekonnenTeshager MekonnenTekaligneAdigo Weret, MisganawMisganawAdigo WeretShitaw, Kassie NigusKassie NigusShitawNikodimos, YosefYosefNikodimosYang, Sheng ChiangSheng ChiangYangMuche, Zabish BilewZabish BilewMucheTaklu, Bereket WoldegbrealBereket WoldegbrealTakluHotasi, Boas TuaBoas TuaHotasiChang, Chia YuChia YuChangJiang, Shi KaiShi KaiJiangBrunklaus, GuntherGuntherBrunklausWinter, MartinMartinWinterWu, She HuangShe HuangWuSu, Wei NienWei NienSuCHUNG-YUAN MOUHwang, Bing JoeBing JoeHwang2024-03-292024-03-292024-04-0113858947https://scholars.lib.ntu.edu.tw/handle/123456789/641595Anode-free lithium metal batteries (AFLMBs) have sparked considerable attention in recent years because of their potential for high energy density; however, they suffer from severe Li dendrite growth and unstable solid electrolyte interphase (SEI), which typically result in rapid capacity decay. Herein, we demonstrate a long-life anode-free pouch cell by designing a dual-coating protective layer (Cu-Sn@SFPH) electrode with Sn-coated Cu (denoted as Cu-Sn) as the bottom layer and SrF2 nanoparticles strengthened by poly (vinylidene fluoride)-co-hexafluoropropylene (PVDF-HFP) as the top layer. The in-situ formed LiF-rich SEI enables fast Li+ transfer, while the lithiophilic Li-Sn and Li-Sr alloy layers serve as nucleation seeds for uniform Li deposition. The dual-coated Cu electrode in the Cu-Sn@SFPH||Li cell exhibits remarkable cycling stability for more than 3,200 h at a capacity of 2 mAh cm−2. The NCM111||Cu-Sn@SFPH pouch cell demonstrates outstanding performance with a capacity retention of 72.1 % and an average Coulombic efficiency (CE) of 99.9 % for 120 cycles. Under practical conditions, with NCM cathodes and a lean electrolyte volume, this design strategy opens a new approach to AFLMBs.enAnode-free Li metal battery | Li-Sr/Li-Sn composite alloys | Protective layers | SrF /PVDF-HFP 2 | Uniform deposition[SDGs]SDG7journal article10.1016/j.cej.2024.1495472-s2.0-85186441866https://api.elsevier.com/content/abstract/scopus_id/85186441866