Tuning the Solvation Structure in Water-Based Solution Enables Surface Reconstruction of Layered Oxide Cathodes toward Long Lifespan Sodium-Ion Batteries.

ABSTRACT: Layered oxides of sodium-ion batteries suffer from severe side reactions on the electrode/electrolyte interface, leading to fast capacity degradation. Although surface reconstruction strategies are widely used to solve the above issues, the utilization of the low-cost wet chemical method is extremely challenging for moisture-sensitive Na-based oxide materials. Here, the solvation tuning strategy is proposed to overcome the deterioration of NaNi_1/3Mn_1/3Fe_1/3O₂ in water-based solution and conduct the surface reconstruction. When capturing the water molecules by the solvation structure of cations, here is Li⁺, the structural collapse and degradation of layered oxides in water-based solvents are greatly mitigated. Furthermore, Li(H_2</

SUBMITTER: Hao Y 

PROVIDER: S-EPMC11234404 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature