TY  - JOUR
AU  - Merso, Semaw Kebede
AU  - Tekaligne, Teshager Mekonnen
AU  - Adigo Weret, Misganaw
AU  - Shitaw, Kassie Nigus
AU  - Nikodimos, Yosef
AU  - Yang, Sheng-Chiang
AU  - Muche, Zabish Bilew
AU  - Taklu, Bereket Woldegbreal
AU  - Hotasi, Boas Tua
AU  - Chang, Chia-Yu
AU  - Jiang, Shi-Kai
AU  - Brunklaus, Gunther
AU  - Winter, Martin
AU  - Wu, She-Huang
AU  - Su, Wei-Nien
AU  - Mou, Chung-Yuan
AU  - Hwang, Bing Joe
TI  - Multiple protective layers for suppressing Li dendrite growth and improving the cycle life of anode-free lithium metal batteries
JO  - The chemical engineering journal
VL  - 485
SN  - 1385-8947
CY  - Amsterdam
PB  - Elsevier
M1  - FZJ-2024-02613
SP  - 149547 -
PY  - 2024
AB  - Anode-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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001202517800001
DO  - DOI:10.1016/j.cej.2024.149547
UR  - https://juser.fz-juelich.de/record/1025019
ER  -