2026-10-12T04:53:34Z https://www.scidb.cn/oai

10.57760/sciencedb.14641 2024-10-15T15:11:25Z

2024-10-15 Lithophilic metal–ceramic Achieving high durability in lithium-metal batteries via lithophilic metal-ceramic interface engineering doi:10.57760/sciencedb.14641 en Highly reactive lithium (Li) requires precise control of nucleation and growth, necessitating stable processing techniques for the fabrication of Li-metal batteries. This study proposes a novel strategy to mitigate Li dendrite formation using a dual-layer protective coating composed of a ceramic (Al2O3) and lithophilic metal (Au) fabricated via a solvent-free transfer printing process. The dual-layer structure consists of a Au layer positioned between Al2O3 and Li metal, where the Al2O3 layer suppresses dendrite growth and promotes uniform Li-ion flux. Meanwhile, the Au layer functions as a seed for Li deposition, reducing the nucleation overpotential of Li deposition through the Au-Li alloy formation, thus enabling uniform Li deposition. Using synchrotron-based operando X-ray computed tomography (CT), we directly visualized and analyzed the Li growth mechanisms within the Al2O3@Au dual-layer structure, confirming its role in facilitating uniform Li deposition and effectively preventing dendrite formation. This structural synergy resulted in superior battery performance. the Al2O3@Au dual-layer demonstrated outstanding performance in NCM811/Li cells (2.6 mAh cm⁻2), achieving a capacity retention rate of over 85% and Coulombic efficiency exceeding 99.8% after 150 cycles. This study offers a scalable and practical approach to stabilizing Li metal anodes, thus paving the way for next-generation batteries. Lithium metal batteries; Lithium metal protective layer; lithophilic metal; ceramic layer. Junyoung Choi Myeong Hwan Lee Un-Seon Heo Jae-Hong Lim Kyung-Wan Nam Jungdon Suk PUBLIC https://creativecommons.org/licenses/by-nc-nd/4.0/ dataset Science Data Bank