High-performance ZnTe-TiO2-C nanocomposite with half-cell and full-cell applications as promising anode material for Li-Ion batteries (original) (raw)
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Acta Physica Polonica A, 2014
In this study, highly porous buckypapers were manufactured via vacuum ltration techniques and nanocrystalline TiO2 thin lms were deposited on buckypapers using reactive radio frequency magnetron sputtering to understand the role of the deposition power. In addition, the eects of the deposition parameters on the electrochemical properties as an anode electrode for Li-ion batteries have also been studied.
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...
Novel Titanium Dioxide Based Nanocomposite Anodes for Li-Ion Batteries
Acta Physica Polonica A, 2013
Carbon nanotube thin sheets buckypapers were prepared from multi-walled carbon nanotubes oxidized with dierent oxidation agents. Titanium dioxide lms were then deposited by thermal evaporation of Ti lms on buckypapers substrates followed by in situ dc plasma oxidation. The eect of oxidation power on the structural, compositional and electrochemical properties of the lms was investigated.
IOP Conference Series: Materials Science and Engineering, 2019
Lithium titanate, Li4Ti5O12 (LTO) is a promising candidate as lithium ion battery anode material. In this investigation, LTO/C@ZnO was synthesized with LTO nanorod by hydrothermal method using TiO2 xerogel that prepared by the sol-gel method, lithium hydroxide (LiOH), Activated carbon, and Zinc Oxide (ZnO) nanorod. Three variations of ZnO content addition in weight %, i.e., 4, 7 and 10%, labelled as sample LTO/C@ZnO-4, LTO/C@ZnO-7 and LTO/C@ZnO-10, respectively. The characterizations were made using XRD, FE-SEM, and BET testing. These were performed to observe the effect of ZnO addition on structure, morphology, and surface area of the resulting samples. Result showed that the optimum discharge capacity from each samples was 32.84 mAh/g in LTO/C@ZnO-4 with the crystallite size of 11.86 nm and the surface area of 348.736 m2/g. In cyclic voltammetry testing, it shows a shift in reaction voltage and reduction in capacity that caused by the addition of C@ZnO and the lack of Li4Ti5O12 th...
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.
Nanostructured Sn/TiO2/C composite as a high-performance anode for Li-ion batteries
Electrochemistry Communications, 2009
A nanostructured Sn/TiO 2 /C composite was prepared from SnO, Ti, and carbon powders using a mechanochemical reduction method and evaluated as an anode material in rechargeable Li-ion batteries. The Sn/TiO 2 /C nanocomposite was composed of uniformly dispersed nanocrystalline Sn and rutile TiO 2 in amorphous carbon matrix. In addition, electrochemical Li insertion/extraction in rutile TiO 2 was examined by ex situ XRD and extended X-ray absorption fine structure. The Sn/TiO 2 /C nanocomposite exhibited excellent electrochemical performance, which highlights its potential as a new alternative anode material in Li-ion batteries.
TiO2 Nanomaterials as Anode Materials for Lithium-Ion Rechargeable Batteries
chemical properties for Li-ion storage.R epresentative examples are given for nanoparticles, nanowires,n anotubes,n anosheets,a nd three-dimensional materials,a sw ell as amorphous structures.A pproaches to improve the performanceo f TiO 2 nanomaterials such as carbon coating,b ulk doping, selfstructural modification, and compositinga re surveyed briefly. Progress in the use of TiO 2 nanomaterials in full-cell configurations is also reviewed.F inally,t he challenges for the practical applications of TiO 2 nanomaterials in Li-ion rechargeable batteries are discussed briefly.
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...