Annealed SiO Protective Layer on LiMnO for Enhanced Li-Ion Extraction from Brine.

In this study, we present a novel approach for selective Li-ion extraction from brine using an LiMnO ion sieve coated with a dense silica layer, denoted as LMO@SiO. The SiO layer is controllably coated onto the LMO surface, forming passivation layers and ion permeation filters. This design effectively minimizes the acidic corrosion of the LMO and enhances the Li adsorption capacity.