Are ultrathin nanobelts suitable for lithium storage?

Herein, we exploit a novel and scalable route to synthesize ultrathin nanobelts of anatase TiO 2, which is resource abundant and is eligible for safe anodes in LIBs. The achieved ultrathin nanobelts demonstrate outstanding performances for lithium storage because of the unique nanoarchitecture and appropriate composition.

Is TiO 2 a good polymorph for lithium storage?

Among common TiO 2 polymorphs of anatase, rutile and brookite, anatase presents the most excellent properties in lithium storage 11 and photocatalysis 12. However, for lithium storage, anatase TiO 2 still suffers from low capacity and poor rate performance because of the sluggish Li ion diffusion and poor electronic conductivity 11.

What is the capacity of TiO 2 compared to Li 4 Ti 5 O 12?

Also served as important functional material in photocatalysis 7, energy conversion 8 and gas sensors 9, TiO 2 possesses a theoretical capacity of 335 mAhg −1, which is much higher than that of Li 4 Ti 5 O 12 (175 mAhg −1) having been successfully commercialized.

What is the discharge capacity of TiO 2 ultrathin nanobelts?

As shown in Fig. 4c, the anatase TiO 2 ultrathin nanobelts deliver a discharge capacity of ca. 216, 204, 186, 164, 146, 126 and 116 mAhg −1 at a current rate of 0.5 C, 1 C, 2 C, 5 C, 10 C, 20 C and 30 C, respectively.

Which nanomaterial is best for lithium storage?

For example, anatase TiO 2 nanosheets with exposed highly reactive (001) facets exhibited excellent properties for lithium storage 24. Ultrathin 2D nanomaterials demonstrate many unique physical and chemical properties 25.

Are nanoporous anatase TiO2 mesocrystals good for lithium storage?

Ye, J. et al. Nanoporous anatase TiO2 mesocrystals: Additive-free synthesis, remarkable crystalline-phase stability and improved lithium insertion behavior. J. Am. Chem. Soc. 133, 933–940 (2011). Saravanan, K., Ananthanarayanan, K. & Balaya, P. Mesoporous TiO2 with high packing density for superior lithium storage.