Optimization of the arrangement and fabrication of titanium oxide nanotubes to improve the performance of lithium ion batteries anode

In this paper, the production of anodes of vertical titanium oxide nanotubes is analyzed and optimized by anodizing method. The parameters of the potential difference and the distance between the two electrodes in the anodize process are investigated and the effect of these parameters on morphology and anode structure has been investigated. The produced anodic plates, have been investigated by field-scattering electron microscope, X-ray diffraction spectrometer and radiation diffraction. The results indicate that by increasing the applied voltage from 20 to 50 Volt, the anodized nanotube diameter will increase from 50 to 155 nanometre, and after a certain voltage, the structure of the nanotubes is destroyed and nano / micro porosity is created. Also, by increasing the voltage from 20 to 50 volt, the wall thickness of the nanotubes increases from 20 to 50 nanometre. As the duration of the voltage increases, the length of the nanotubes increases; but the thickness and diameter of the nanotubes remain constant. As the gap between the two electrodes increases from 0.5 to 4.5 CM, the thickness of the walls decreases from 57 to 13 nanometre. Thus, by controlling the above mentioned parameters, the optimum state of the anodized nanotubes can be achieved to obtain a more and faster penetration of lithium ions. The results of this research are very useful in improving the performance of lithium ion batteries.