Nguyen, Viet Phuong Shim, Hyung Cheoul Byeon, Young-Woon Kim, Jae-Hyun Lee, Seung-Mo 2025-04-09T09:30:45Z 2025-04-09T09:30:45Z 2025-04-09 2025-05 https://pubs.kist.re.kr/handle/201004/152252 Lithium-metal anodes are essential for the advancement of next-generation batteries. However, their practical use is largely hindered by the uncontrollable growth of dendrites and intricate problems associated with fabricating anodes that meet capacity requirements. Here, it is demonstrated that an ultrathin ZnF2 layer deposited on the copper foil can produce a novel and efficient current collector to address these challenges. It is observed that ZnF2 can be transformed into LiZn alloy and LiF salt in one step by simple electrochemical activation. The resulting LiZn alloy exhibits high lithiophilicity, which reduces overpotential and promotes uniform lithium nucleation, while the LiF salt enhances the solid electrolyte interphase, ensuring uniform lithium growth. This synergistic effect led to a dendrite-free, densely packed lithium anode with an extended lifespan, achieving over 900 h in symmetric cells at a high current density of 3 mA cm(-2) and a high cut-off capacity of 3 mAh cm(-2). Furthermore, full cells utilizing the lithium anode (Li capacity of 6 mAh cm(-2)) paired with LiNi0.8Mn0.1Co0.1O2 cathodes (mass loading of 11.5 mg cm(-2)) demonstrates drastically improved rate capability and excellent cycling stability. This approach holds great promise for developing safer and more efficient lithium-metal-based batteries for future energy storage solutions. English Wiley-VCH Verlag Taming Lithium Nucleation and Growth on Cu Current Collector by Electrochemical Activation of ZnF2 Layer Article 10.1002/advs.202416426 1 Advanced Science, v.12, no.19 Advanced Science 12 19 Y scie scopus 001454094400001 2-s2.0-105001551392 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article METAL ANODE ELECTROLYTE DEPOSITION INTERPHASE current collector dendrite LiF-rich SEI lithiophilic lithium-metal battery