Tailoring high-surface-area nanocrystalline TiO2 polymorphs for high-power Li ion battery electrodes

Lithium Batteries

“…The interest in this material has led to a tremendous amount of works devoted to the successful preparation of nano-TiO 2 by all kinds of techniques: hydrothermal [281,282], sol-gel [283][284][285][286][287], soft template [288], precipitation or solid state method followed by ion exchange [289,290], urea-mediated hydrolysis/precipitation route [291], anodization [292,293] Fig. 10.6 for those of the polymorphs that are of interest for Li-ions batteries [38].…”

High rate capability of TiO2/nitrogen-doped graphene nanocomposite as an anode material for lithium–ion batteries

“…However, the rate performance of the bare TiO 2 is poor due to its low lithium-ion diffusivity and electronic conductivity [7,8]. To solve the problem, nanotechnology has been introduced to improve electrochemical performance by shortening the transport distance of electrons and lithium-ion and increasing contact area between electrode and electrolyte [9][10][11][12][13]. In addition, the other effective approach to improve the rate performance is the combination of TiO 2 and carbon-based materials (polymer [14], carbon [15] and graphene [16][17][18][19][20][21][22]).…”

High specific capacity of TiO2-graphene nanocomposite as an anode material for lithium-ion batteries in an enlarged potential window

“…However, its practical capacity and high-rate capability are limited due to the low Li-ion diffusivity and electronic conductivity during reversible Li-ion insertion/extraction process [4][5][6]. In order to improve the electrochemical performance of TiO 2 materials, nanotechnology has been explored to provide increased reaction active sites and short diffusion lengths for electron and Li-ion transport [7][8][9][10][11][12][13]. In addition, a variety of approaches have also been developed to increase the electronic conductivity of the TiO 2 , such as adding conductive agents (e.g.…”