TiO2 Nanomaterials as Anode Materials for Lithium-Ion Rechargeable Batteries (original) (raw)
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TiO2 Based Nanomaterials and Their Application as Anode for Rechargeable Lithium-Ion Batteries
Titanium Dioxide - Advances and Applications, 2022
Titanium dioxide- (TiO2-) based nanomaterials have been widely adopted as active materials for photocatalysis, sensors, solar cells, and for energy storage and conversion devices, especially rechargeable lithium-ion batteries (LIBs), due to their excellent structural and cycling stability, high discharge voltage plateau (more than 1.7 V versus Li+/Li), high safety, environmental friendliness, and low cost. However, due to their relatively low theoretical capacity and electrical conductivity, their use in practical applications, i.e. anode materials for LIBs, is limited. Several strategies have been developed to improve the conductivity, the capacity, the cycling stability, and the rate capability of TiO2-based materials such as designing different nanostructures (1D, 2D, and 3D), Coating or combining TiO2 with carbonaceous materials, and selective doping with mono and heteroatoms. This chapter is devoted to the development of a simple and cost-efficient strategies for the preparatio...
Nanostructured TiO2(B): the effect of size and shape on anode properties for Li-ion batteries
Progress in Natural Science: Materials International, 2013
Reducing the dimensions of electrode materials from the micron to the nanoscale can have a profound influence on their properties and hence on the performance of electrochemical devices, e.g. Li-ion batteries, that employ such electrodes. TiO 2 (B) has received growing interest as a possible anode for Li-ion batteries in recent years. It offers the possibility of higher energy storage compared with the commercialized Li 4 Ti 5 O 12 . Bulk, nanowire, nanotube, and nanoparticle morphologies have been prepared and studied. However, to date these materials have not be compared in one article. In the current review we first summarize the different synthesis methods for the preparation of nanostructured TiO 2 (B); then present the effects of size and shape on the electrochemical properties. Finally TiO 2 (B) with nanometer dimensions exhibit a higher capacity to store Li, regardless of rate, due to structural distortions inherent at the nanoscale.
Nanomaterials
Lithium-ion batteries (LIBs) are undeniably the most promising system for storing electric energy for both portable and stationary devices. A wide range of materials for anodes is being investigated to mitigate the issues with conventional graphite anodes. Among them, TiO2 has attracted extensive focus as an anode candidate due to its green technology, low volume fluctuations (<4%), safety, and durability. In this review, the fabrication of different TiO2 nanostructures along with their electrochemical performance are presented. Different nanostructured TiO2 materials including 0D, 1D, 2D, and 3D are thoroughly discussed as well. More precisely, the breakthroughs and recent developments in different anodic oxidation processes have been explored to identify in detail the effects of anodization parameters on nanostructure morphology. Clear guidelines on the interconnected nature of electrochemical behaviors, nanostructure morphology, and tunable anodic constraints are provided in t...
Electrochimica Acta, 2013
Urea-assisted auto-combustion synthesis was used for the easy and scalable preparation of TiO 2 nanoparticles for use as anodes in lithium-ion batteries. The prepared TiO 2 powder was annealed at 300 • C, 400 • C, 500 • C and 600 • C to optimize the system and assess the effects of particle size on electrochemical properties. X-ray diffraction patterns confirmed that pure anatase phase TiO 2 formed at up to 500 • C, above which mixed phases of anatase and rutile emerged. Field-emission transmission electron microscopy showed that spherical particles of 8-25 nm were formed. The electrochemical performances of annealed TiO 2 samples were tested by charging/discharging, Crate measurement and electrochemical impedance spectroscopy. It was clearly found that the crystal particle size has a striking impact on the Li insertion behavior and lithium storage capability. TiO 2 nanoparticles electrode annealed at lower temperature 300 • C showed high rate capability, excellent capacity retention and high electrical conductivity due to its very small particles and nonideal crystal lattices.
The Influence of TiO2 Nanoparticles Morphologies on the Performance of Lithium-Ion Batteries
Nanomaterials
Anode materials based on the TiO2 nanoparticles of different morphologies were prepared using the hydrothermal method and characterized by various techniques, such as X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), and N2 absorption. The TiO2 nanoparticles prepared were used as anode materials for lithium-ion batteries (LIBs), and their electrochemical properties were tested using discharging/charging measurements. The results showed that the initial morphology of the nanoparticles plays a minor role in battery performance after the first few cycles and that better capacity was achieved for TiO2 nanobelt morphology. The sharp drop in the specific capacity of LIB during their first cycles is examined by considering changes in the morphology of TiO2 particles and their porosity properties in terms of size and connectivity. The performance of TiO2 anode materials has also been assessed by considering their phase.
Journal of Power Sources, 2012
We developed mesoporous and nanostructured TiO 2 anodes with very high specific surface, up to more than 500 m 2 g −1 , that show good promise for lithium battery applications. Modifying the surfactant to form a carbon coating inside the pores at low temperature shows better promises than normal carbonization processes, since the high temperature needed is too high and results in the crystal formation and the loss of porosity.
Tailoring nanostructured TiO2 for high power Li-ion batteries
Journal of Power Sources, 2009
It is shown that the rate performance of anatase TiO 2 can be significantly improved by addition of a small amount (few percent) of carefully selected oxides such as silica or RuO 2. Specifically, silica serves primarily as a suppressant of particle growth during heating of anatase precursor-in our case titania nanotubes. The addition of RuO 2 is supposed to enhance the electronic conductivity. The beneficial impact of the combined use of silica and RuO 2 in the preparation of anatase-based electrodes is also demonstrated on a commercially available sample of anatase.
Synthesis and Characterisation of Titanium Oxide Nanopowders for Lithium- Ion Batteries
Archives of Applied Science Research, 2012
Lithium ion batteries form an integral part of many modern gadget packages as reliable power sources. Oxide powders of titanium have been reported to offer high charge storage capabilities coupled with enhanced electrode stability when used as anodes in lithiunm ion battreies. This paper describes a simple room temperature wet chemical method for the synthesis of nano sized titanium oxide powders for use in Li-ion Batteries. Analytical tools like, X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM) and Transmission Electron Microscope (TEM) were used for the determination of phase purity, crystallite size and particle morphologies. The capacity measurements carried out on the powders in anode form indicated that these powders exhibit high charge storage capacity compared to graphite and have good cycling performance.
Recent progress in Li-ion batteries with TiO2 nanotube anodes grown by electrochemical anodization
Rare Metals, 2020
Self-organized titanium dioxide (TiO 2) nanotubes, which are prepared by electrochemical anodizing, have been widely researched as promising anodes for Liion batteries. Both nanotubular morphology and bulk structure of TiO 2 nanotubes can be easily changed by adjusting the anodizing and annealing parameters. This is provided to investigate different phenomena by selectively adjusting a specific parameter of the Li ? insertion mechanism. In this paper, we reviewed how the morphology and crystallography of TiO 2 nanotubes influence the electrochemical performance of Li ? batteries. In particular, electrochemical performances of amorphous and anatase titanium dioxide nanotube anodes were compared in detail. As we all know, TiO 2 nanotube anodes have the advantages of nontoxicity, good stability, high safety and large specific surface area, in lithium-ion batteries. However, they suffer from poor electronic conductivity, inferior ion diffusivity and low theoretical capacity (335 mAhÁg-1), which limit their practical application. Generally, there are two ways to overcome the shortcomings of titanium dioxide nanotube anodes, including doping and synthesis composites. The achievements and existing problems associated with doped TiO 2 nanotube anodes and composite material anodes are summarized in the present review. Based on the analysis of lithium insertion mechanism of titanium dioxide nanotube electrodes, the prospects and possible research directions of TiO 2 anodes in lithiumion batteries are discussed.