Phases Hybriding and Hierarchical Structuring of Mesoporous TiO₂ Nanowire Bundles for High-Rate and High-Capacity Lithium Batteries.

ABSTRACT: A hierarchical mesoporous TiO₂ nanowire bundles (HM-TiO₂-NB) superstructure with amorphous surface and straight nanochannels has been designed and synthesized through a templating method at a low temperature under acidic and wet conditions. The obtained HM-TiO₂-NB superstructure demonstrates high reversible capacity, excellent cycling performance, and superior rate capability. Most importantly, a self-improving phenomenon of Li⁺ insertion capability based on two simultaneous effects, the crystallization of amorphous TiO₂ and the formation of Li₂Ti₂O₄ crystalline dots on the surface of TiO₂ nanowires, has been clearly revealed through ex situ transmission electron microcopy (TEM), high-resolut

SUBMITTER: Jin J 

PROVIDER: S-EPMC5029796 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature