Naked metallic skin for homo-epitaxial deposition in lithium metal batteries.

ABSTRACT: Regulating the morphology of lithium plating is the key to extending the cycle life of lithium metal batteries. Fatal dendritic growth is closely related to out-of-plane nucleation on the lithium metal surface. Herein, we report a nearly perfect lattice match between the lithium metal foil and lithium deposits by removing the native oxide layer using simple bromine-based acid-base chemistry. The naked lithium surface induces homo-epitaxial lithium plating with columnar morphologies and lower overpotentials. Using the naked lithium foil, the lithium-lithium symmetric cell maintains stable cycling at 10 mA cm^-2 for more than 10,000 cycles, and the full-cell paired with LiFePO₄ with high areal capacity of 3.3 mAh cm^-2 and practical N/P ratio of 2.5 exhibits 86

SUBMITTER: Baek M 

PROVIDER: S-EPMC9998607 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature