Development of Advanced Nanomaterials for Potential Lithium-Ion Battery Application
type: CreativeWork
description: Lithium-ion batteries (LIBs) are promising energy storage media under serious consideration for practical applications in electric vehicle (EVs) and hybrid electric vehicles (HEVs). However, to meet the requirements for EVs and HEVs, the performance of commercially available LIBs needs to be greatly improved in terms of the energy density, cycling life, rate capability, safety and cost. It is well known that the LIB performance is highly dependent on the choice of electrode materials. Therefore, it is greatly important to develop new electrode materials as replacements for graphite/LiCoO2 used in commercial LIBs, in order to achieve high-performance LIBs desirable for EV and HEV applications. In this thesis, to achieve the above goal, efforts made in this thesis followed into two sections. The first section was to develop novel nanostructured electrode materials, which could be directly used in LIBs. The other section was to develop various surface-modification materials, which could be applied to further improve the LIB performance of electrode materials. Various advanced characterization techniques, including field-emission scanning electron microscope (FE-SEM), energy dispersive X-ray spectroscopy (EDS), transmission electron microscope (TEM), high-resolution TEM (HRTEM), Raman spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform-infrared spectroscopy (FT-IR), X-ray absorption near edge structure (XANES) spectroscopy, and electrochemical methods, have been applied to analyze the prepared nanomaterials, understand their growth mechanisms, and evaluate their battery performance. The nanostructured electrode materials included nitrogen-doped carbon nanotubes (NCNTs), phosphorus-nitrogen doped carbon nanotubes (PNCNTs), and lithium titanate (Li4Ti5O12). A scalable method, ultrasonic spray pyrolysis, was developed inhouse to produce NCNTs with tunable structure as potential anode materials. Further attempt to incorporate P e…
abstract: Lithium-ion batteries (LIBs) are promising energy storage media under serious consideration for practical applications in electric vehicle (EVs) and hybrid electric vehicles (HEVs). However, to meet the requirements for EVs and HEVs, the performance of commercially available LIBs needs to be greatly improved in terms of the energy density, cycling life, rate capability, safety and cost. It is well known that the LIB performance is highly dependent on the choice of electrode materials. Therefore, it is greatly important to develop new electrode materials as replacements for graphite/LiCoO2 used in commercial LIBs, in order to achieve high-performance LIBs desirable for EV and HEV applications. In this thesis, to achieve the above goal, efforts made in this thesis followed into two sections. The first section was to develop novel nanostructured electrode materials, which could be directly used in LIBs. The other section was to develop various surface-modification materials, which could be applied to further improve the LIB performance of electrode materials. Various advanced characterization techniques, including field-emission scanning electron microscope (FE-SEM), energy dispersive X-ray spectroscopy (EDS), transmission electron microscope (TEM), high-resolution TEM (HRTEM), Raman spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform-infrared spectroscopy (FT-IR), X-ray absorption near edge structure (XANES) spectroscopy, and electrochemical methods, have been applied to analyze the prepared nanomaterials, understand their growth mechanisms, and evaluate their battery performance. The nanostructured electrode materials included nitrogen-doped carbon nanotubes (NCNTs), phosphorus-nitrogen doped carbon nanotubes (PNCNTs), and lithium titanate (Li4Ti5O12). A scalable method, ultrasonic spray pyrolysis, was developed inhouse to produce NCNTs with tunable structure as potential anode materials. Further attempt to incorporate P e…
author: Liu, Jian
language: en_ca
keywords: Carbon nanotubes, atomic layer deposition, zirconium oxide, aluminum phosphate, lithium tantalate, lithium titanate
date published: 2013-08-21
date modified: 2026-07-27T21:55:58Z
provider: Western University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: The University of Western Ontario

PropertyValue
property ID: Handle
value: https://hdl.handle.net/20.500.14721/36358