Precisely Integrated Mesoporous Anode Enabling Fast Pseudocapacitive Sodium-Ion Storage.

ABSTRACT: Sodium-ion batteries (SIBs) are considered potential alternatives to lithium-ion batteries (LIBs) due to the abundant resources and low sodium cost. The rational nanostructural design for anode materials plays a crucial role in SIBs. TiO₂, as a common electrode material, suffers from the drawbacks of low specific surface area and poor conductivity. To overcome these limitations, we propose a strategy combining solvent evaporation-induced self-assembly and chemical oxidative polymerization to construct an ultrathin polypyrrole (PPy)-coated mesoporous TiO₂ microsphere (meso-TiO₂@PPy) core-shell structure. The combination of the mesoporous structure and the conductive coating endows the micrometer-sized TiO₂ spheres with high specific surface area,

SUBMITTER: Li S 

PROVIDER: S-EPMC12550626 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature