| 초록 |
Decades of research have been dedicated to the development and fundamental understanding of the forces that control the native film of Li metal. The representation and the origin of this film still needs more attention due to the lack of complementary information about natural−guided native film formation at high temperatures. In this study, we identify the nature of surface layers formation on lithium metal foil via the heat treatment process at low levels of moisture and oxygen. The heat treatment enables a guided formation of enriches lithium carbonate layer at native film responsible for the formation of stable solid electrolyte interface (SEI) in contact with electrolyte that simultaneously minimizes the decomposition, penetration of the electrolyte, and reaction with the bulk lithium metal under the surface. This natural formation of native film, and later SEI film, shows protection during the deposition−dissolution against short−circuiting, and stability of lithium metal. |
