High rate performances of hydrogen titanate nanowires electrodes

Spherical Li4Ti5O12 synthesized by spray drying from a different kind of solution

“…As can be seen form Fig. 8, the cycle stability increases with the increase of current density, which as same as many literatures has been reported before [19,[28][29][30]. Obviously, high current density decreases the contact time of electrode and electrolyte, which will enhance the cycling performance.…”

TiO2 nanotube arrays annealed in CO exhibiting high performance for lithium ion intercalation

“…Titanium dioxide is abundant in nature and can be easily fabricated with low cost in addition to its chemical stability and various favorable physical properties, and thus has been extensively explored and studied for applications in energy conversion and storage [1][2][3]. For example, it has been widely studied as electrodes in dye-sensitized solar cells [4][5], biosensors [6][7], and lithium-ion batteries [8][9].…”

The preparation of H2Ti12O25 via multi-method and their rate performance in Lithium ions battery

“…The larger surface area and larger amount of interlayer water of Na 2 Ti 3 O 7 will contribute to the ion exchange efficiency [16] , so the ion exchange of 104.5 mAh g -1 , respectively. These capacities loss can be boiled down to Li 2 O formed in the irreversible reaction between lithium and the residual water bound to the active material [7,11,12] . But H 2 Ti 12 O 25 nanorods have larger irreversible capacity loss than Bulk-H 2 Ti 12 O 25 , which is thought to be related to the fraction of Li + trapped in the imperfection surface structure of nanorods [19][20][21] .…”

“…Nagai et al [6] reported that Na 2 Ti 3 O 7 precursor with small particle size can be prepared by solid state reaction and grinding. But for this method, it is difficult to synthesize Na 2 Ti 3 O 7 with specific morphology, which will exert a large influence on the morphology of the final product H 2 Ti 12 kHz with an AC signal of ±5 mV.…”

“…nanostructured materials have many obvious advantages in comparison with respective counterparts with microcosmic sizes, such as high rate performance, large capacity and long cycle life, due to the larger specific surface area, shorter transport length for both electronic and Li + ions and better accommodation of the strain during Li insertion/extraction[7][8][9][10][11][12][13][14][15] , so it is receiving increasing interests for the application in lithium ion batteries. Inspired by this, we attempt to synthesize H 2 Ti 12 O 25 with specific nanostructures via hydrothermal reaction following heat treatment to improve its electrochemical properties.…”