Lithium titanium oxynitride thin film with enhanced lithium storage and rate capability

Zhaozhe Yu; Huarui Xu; Guisheng Zhu; Dongliang Yan; Aibing Yu

doi:10.1016/j.apsusc.2016.01.284

Lithium titanium oxynitride thin film with enhanced lithium storage and rate capability

Zhaozhe Yu, Huarui Xu, Guisheng Zhu, Dongliang Yan, Aibing Yu

Chemical & Biological Engineering

Research output: Contribution to journal › Article › Research › peer-review

10 Citations (Scopus)

Abstract

The lithium titanium oxynitride (LTON) thin film electrode was prepared by radio frequency (RF) mag-netron sputtering deposition using a cubic spinel structure Li4Ti5O12(LTO) powder target in a N2atmosphere for lithium ion batteries. XRD and SEM test results showed that the thin film was composed of weak crystal or amorphous structure and that its surface was homogeneous. XPS analyses indicatedthat nitrogen atoms were actually incorporated into the LTO matrix framework. The substitution of nitro-gen for oxygen in the thin film created more abundant cross-linking structures, which favored the highermobility of lithium ions. The LTON had a high capacity of 290 mAh g−1at 0.1C, excellent rate capabilityof 160 mAh g−1at 5C and only ≈7% capacity loss after 100 cycles at 5C charge and discharge rate. These properties make this thin film electrode a promising candidate material for use in thin film lithium ionbatteries.

Original language	English
Pages (from-to)	173 - 176
Number of pages	4
Journal	Applied Surface Science
Volume	368
DOIs	https://doi.org/10.1016/j.apsusc.2016.01.284
Publication status	Published - 2016

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title = "Lithium titanium oxynitride thin film with enhanced lithium storage and rate capability",

abstract = "The lithium titanium oxynitride (LTON) thin film electrode was prepared by radio frequency (RF) mag-netron sputtering deposition using a cubic spinel structure Li4Ti5O12(LTO) powder target in a N2atmosphere for lithium ion batteries. XRD and SEM test results showed that the thin film was composed of weak crystal or amorphous structure and that its surface was homogeneous. XPS analyses indicatedthat nitrogen atoms were actually incorporated into the LTO matrix framework. The substitution of nitro-gen for oxygen in the thin film created more abundant cross-linking structures, which favored the highermobility of lithium ions. The LTON had a high capacity of 290 mAh g−1at 0.1C, excellent rate capabilityof 160 mAh g−1at 5C and only ≈7% capacity loss after 100 cycles at 5C charge and discharge rate. These properties make this thin film electrode a promising candidate material for use in thin film lithium ionbatteries.",

author = "Zhaozhe Yu and Huarui Xu and Guisheng Zhu and Dongliang Yan and Aibing Yu",

year = "2016",

doi = "10.1016/j.apsusc.2016.01.284",

language = "English",

volume = "368",

pages = "173 -- 176",

journal = "Applied Surface Science",

issn = "0169-4332",

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TY - JOUR

T1 - Lithium titanium oxynitride thin film with enhanced lithium storage and rate capability

AU - Yu, Zhaozhe

AU - Xu, Huarui

AU - Zhu, Guisheng

AU - Yan, Dongliang

AU - Yu, Aibing

PY - 2016

Y1 - 2016

N2 - The lithium titanium oxynitride (LTON) thin film electrode was prepared by radio frequency (RF) mag-netron sputtering deposition using a cubic spinel structure Li4Ti5O12(LTO) powder target in a N2atmosphere for lithium ion batteries. XRD and SEM test results showed that the thin film was composed of weak crystal or amorphous structure and that its surface was homogeneous. XPS analyses indicatedthat nitrogen atoms were actually incorporated into the LTO matrix framework. The substitution of nitro-gen for oxygen in the thin film created more abundant cross-linking structures, which favored the highermobility of lithium ions. The LTON had a high capacity of 290 mAh g−1at 0.1C, excellent rate capabilityof 160 mAh g−1at 5C and only ≈7% capacity loss after 100 cycles at 5C charge and discharge rate. These properties make this thin film electrode a promising candidate material for use in thin film lithium ionbatteries.

AB - The lithium titanium oxynitride (LTON) thin film electrode was prepared by radio frequency (RF) mag-netron sputtering deposition using a cubic spinel structure Li4Ti5O12(LTO) powder target in a N2atmosphere for lithium ion batteries. XRD and SEM test results showed that the thin film was composed of weak crystal or amorphous structure and that its surface was homogeneous. XPS analyses indicatedthat nitrogen atoms were actually incorporated into the LTO matrix framework. The substitution of nitro-gen for oxygen in the thin film created more abundant cross-linking structures, which favored the highermobility of lithium ions. The LTON had a high capacity of 290 mAh g−1at 0.1C, excellent rate capabilityof 160 mAh g−1at 5C and only ≈7% capacity loss after 100 cycles at 5C charge and discharge rate. These properties make this thin film electrode a promising candidate material for use in thin film lithium ionbatteries.

UR - http://tinyurl.com/z5r6j9f

U2 - 10.1016/j.apsusc.2016.01.284

DO - 10.1016/j.apsusc.2016.01.284

M3 - Article

SN - 0169-4332

VL - 368

SP - 173

EP - 176

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Lithium titanium oxynitride thin film with enhanced lithium storage and rate capability

Abstract

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