Combined Electrochemical, XPS, and STXM Study of Lithium Nitride as a Protective Coating for Lithium Metal and Lithium-Sulfur Batteries.

ABSTRACT: Li₃N is an excellent protective coating material for lithium electrodes with very high lithium-ion conductivity and low electronic conductivity, but the formation of stable and homogeneous coatings is technically very difficult. Here, we show that protective Li₃N coatings can be simply formed by the direct reaction of electrodeposited lithium electrodes with N₂ gas, whereas using battery-grade lithium foil is problematic due to the presence of a native passivation layer that hampers that reaction. The protective Li₃N coating is effective at preventing lithium dendrite formation, as found from unidirectional plating and plating-stripping measurements in Li-Li cells. The Li₃N coating also efficiently suppresses the parasitic reactions of

SUBMITTER: Fitch SDS 

PROVIDER: S-EPMC10450643 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature