Unlocking the Potential of Na₂Ti₃O₇-C Hollow Microspheres in Sodium-Ion Batteries via Template-Free Synthesis.

ABSTRACT: Layered sodium trititanate (Na₂Ti₃O₇) is a promising anode material for sodium-ion batteries due to its suitable charge/discharge plateaus, cost-effectiveness, and eco-friendliness. However, its slow Na⁺ diffusion kinetics, poor electron conductivity, and instability during cycling pose significant challenges for practical applications. To address these issues, we developed a template-free method to synthesize Na₂Ti₃O₇-C hollow microspheres. The synthesis began with polymerization-induced colloid aggregation to form a TiO₂-urea-formaldehyde (TiO₂-UF) precursor, which was then subjected to heat treatment to induce inward crystallization, creating hollow cavities within the microspheres. The ho

SUBMITTER: Sun YG 

PROVIDER: S-EPMC11946267 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature