The intelligent surface coating of Silicon (Si) nanoparticles has proved to be a good example of significantly improving the cycle performance of lithiumion batteries.
However, most coating materials face significant challenges, including low initial Cullen efficiency, cumbersome handling and safety assessment.
In this study, a simple
The gel strategy has been shown to be able to synthesize commercial Si nanoparticles encapsulated by amorphous titanium oxide (ti02), with the core being
Shell structure with excellent electrical performance and high electrical performance.
Lithium storage safely.
The amorphous ti02 shell layer (about 3 nm) exhibits elastic behavior during lithium release and charging, maintaining high structural integrity.
Interestingly, it was found that the amorphous ti02 shell layer provides excellent buffer performance compared to the crystal ti02 layer for unprecedented cyclic stability.
In addition, the accelerated rate thermal test shows that,
Encapsulated Si nanoparticles are more carbon than conventional ones-coated Si-based anodes.