Titelbild: Interdependence of Support Wettability - Electrodeposition Rate- Sodium Metal Anode and SEI Microstructure (Angew. Chem. 8/2025)

Angewandte Chemie Pub Date : 2025-01-16 DOI:10.1002/ange.202500499

Chang-An Lo, Yixian Wang, Varun R. Kankanallu, Aditya Singla, Dean Yen, Xiaoyin Zheng, Kaustubh G. Naik, Bairav S. Vishnugopi, Callum Campbell, Vikalp Raj, Chonghang Zhao, Lu Ma, Jianming Bai, Feipeng Yang, Ruipeng Li, Mingyuan Ge, John Watt, Partha P. Mukherjee, David Mitlin, Yu-chen Karen Chen-Wiegart

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Abstract

Electrodeposition of sodium metal in an anode-free battery can be dendritic. The tree at the center of the cover image represents a single crystalline dendrite, branched and complex in its morphology, originating at the support and growing towards the cathode. Its multicolor leaves are the solid electrolyte interphase (SEI) that cover the metal surface. The SEI is a complex mosaic containing crystalline sodium fluoride, sodium hydride and sodium hydroxide, as well as organic constituents. Details of this study are reported by David Mitlin, Yu-chen Karen Chen-Wiegart et al. in their Research Article (e202412550).

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