Compact TiO₂@SnO₂@C heterostructured particles as anode materials for sodium-ion batteries with improved volumetric capacity.

ABSTRACT: Sodium-ion batteries (SIBs) are promising candidates for large-scale energy storage. Increasing the energy density of SIBs demands anode materials with high gravimetric and volumetric capacity. To overcome the drawback of low density of conventional nanosized or porous electrode materials, compact heterostructured particles are developed in this work with improved Na storage capacity by volume, which are composed of SnO₂ nanoparticles loaded into nanoporous TiO₂ followed by carbon coating. The resulted TiO₂@SnO₂@C (denoted as TSC) particles inherit the structural integrity of TiO₂ and extra capacity contribution from SnO₂, delivering a volumetric capacity of 393 mAh cm^-3 notably higher than that of porous TiO

SUBMITTER: Hu Z 

PROVIDER: S-EPMC10173603 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature