Growth of Lithium Lanthanum Titanate Nanosheets and Their Application in Lithium-Ion Batteries

Xi Lin; Hongqiang Wang; Haiwei Du; Xinrun Xiong; Bo Qu; Zaiping Guo; Dewei Chu

doi:10.1021/acsami.5b10877

Growth of Lithium Lanthanum Titanate Nanosheets and Their Application in Lithium-Ion Batteries

Xi Lin
, Hongqiang Wang
, Haiwei Du
, Xinrun Xiong
, Bo Qu
, Zaiping Guo^*
, Dewei Chu

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

37 Citations (Scopus)

Abstract

In this work, lithium-doped lanthanum titanate (LLTO) nanosheets have been prepared by a facile hydrothermal approach. It is found that with the incorporation of lithium ions, the morphology of the product transfers from rectangular nanosheets to irregular nanosheets along with a transition from La₂Ti₂O₇ to Li_0.5La_0.5TiO₃. The as-prepared LLTO nanosheets are used to enhance electrochemical performance of the LiCo_1/3Ni_1/3Mn_1/3O₂ (CNM) electrode by forming a higher lithium-ion conductive network. The LiCo_1/3Ni_1/3Mn_1/3O₂-Li_0.5La_0.5TiO₃ (CNM-LLTO) electrode shows better a lithium diffusion coefficient of 1.5 × 10^-15 cm² s^-1, resulting from higher lithium-ion conductivity of LLTO and shorter lithium diffusion path, compared with the lithium diffusion coefficient of CNM electrode (5.44 × 10^-16 cm² s^-1). Superior reversibility and stability are also found in the CNM-LLTO electrode, which retains a capacity at 198 mAh/g after 100 cycles at a rate of 0.1 C. Therefore, it can be confirmed that the existence of LLTO nanosheets can act as bridges to facilitate the lithium-ion diffusion between the active materials and electrolytes. © 2015 American Chemical Society.

Original language	English
Pages (from-to)	1486-1492
Journal	ACS Applied Materials and Interfaces
Volume	8
Issue number	2
DOIs	https://doi.org/10.1021/acsami.5b10877
Publication status	Published - 20 Jan 2016
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

We acknowledge the financial support from the Australian Research Council Project of FT140100032.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

composite electrode
hydrothermal
ionic conductivity
lithium lanthanum titanate
lithium-ion battery
nanosheets
perovskite oxides

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10.1021/acsami.5b10877

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title = "Growth of Lithium Lanthanum Titanate Nanosheets and Their Application in Lithium-Ion Batteries",

abstract = "In this work, lithium-doped lanthanum titanate (LLTO) nanosheets have been prepared by a facile hydrothermal approach. It is found that with the incorporation of lithium ions, the morphology of the product transfers from rectangular nanosheets to irregular nanosheets along with a transition from La2Ti2O7 to Li0.5La0.5TiO3. The as-prepared LLTO nanosheets are used to enhance electrochemical performance of the LiCo1/3Ni1/3Mn1/3O2 (CNM) electrode by forming a higher lithium-ion conductive network. The LiCo1/3Ni1/3Mn1/3O2-Li0.5La0.5TiO3 (CNM-LLTO) electrode shows better a lithium diffusion coefficient of 1.5 × 10-15 cm2 s-1, resulting from higher lithium-ion conductivity of LLTO and shorter lithium diffusion path, compared with the lithium diffusion coefficient of CNM electrode (5.44 × 10-16 cm2 s-1). Superior reversibility and stability are also found in the CNM-LLTO electrode, which retains a capacity at 198 mAh/g after 100 cycles at a rate of 0.1 C. Therefore, it can be confirmed that the existence of LLTO nanosheets can act as bridges to facilitate the lithium-ion diffusion between the active materials and electrolytes. {\textcopyright} 2015 American Chemical Society.",

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note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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doi = "10.1021/acsami.5b10877",

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TY - JOUR

T1 - Growth of Lithium Lanthanum Titanate Nanosheets and Their Application in Lithium-Ion Batteries

AU - Lin, Xi

AU - Wang, Hongqiang

AU - Du, Haiwei

AU - Xiong, Xinrun

AU - Qu, Bo

AU - Guo, Zaiping

AU - Chu, Dewei

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2016/1/20

Y1 - 2016/1/20

N2 - In this work, lithium-doped lanthanum titanate (LLTO) nanosheets have been prepared by a facile hydrothermal approach. It is found that with the incorporation of lithium ions, the morphology of the product transfers from rectangular nanosheets to irregular nanosheets along with a transition from La2Ti2O7 to Li0.5La0.5TiO3. The as-prepared LLTO nanosheets are used to enhance electrochemical performance of the LiCo1/3Ni1/3Mn1/3O2 (CNM) electrode by forming a higher lithium-ion conductive network. The LiCo1/3Ni1/3Mn1/3O2-Li0.5La0.5TiO3 (CNM-LLTO) electrode shows better a lithium diffusion coefficient of 1.5 × 10-15 cm2 s-1, resulting from higher lithium-ion conductivity of LLTO and shorter lithium diffusion path, compared with the lithium diffusion coefficient of CNM electrode (5.44 × 10-16 cm2 s-1). Superior reversibility and stability are also found in the CNM-LLTO electrode, which retains a capacity at 198 mAh/g after 100 cycles at a rate of 0.1 C. Therefore, it can be confirmed that the existence of LLTO nanosheets can act as bridges to facilitate the lithium-ion diffusion between the active materials and electrolytes. © 2015 American Chemical Society.

AB - In this work, lithium-doped lanthanum titanate (LLTO) nanosheets have been prepared by a facile hydrothermal approach. It is found that with the incorporation of lithium ions, the morphology of the product transfers from rectangular nanosheets to irregular nanosheets along with a transition from La2Ti2O7 to Li0.5La0.5TiO3. The as-prepared LLTO nanosheets are used to enhance electrochemical performance of the LiCo1/3Ni1/3Mn1/3O2 (CNM) electrode by forming a higher lithium-ion conductive network. The LiCo1/3Ni1/3Mn1/3O2-Li0.5La0.5TiO3 (CNM-LLTO) electrode shows better a lithium diffusion coefficient of 1.5 × 10-15 cm2 s-1, resulting from higher lithium-ion conductivity of LLTO and shorter lithium diffusion path, compared with the lithium diffusion coefficient of CNM electrode (5.44 × 10-16 cm2 s-1). Superior reversibility and stability are also found in the CNM-LLTO electrode, which retains a capacity at 198 mAh/g after 100 cycles at a rate of 0.1 C. Therefore, it can be confirmed that the existence of LLTO nanosheets can act as bridges to facilitate the lithium-ion diffusion between the active materials and electrolytes. © 2015 American Chemical Society.

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KW - hydrothermal

KW - ionic conductivity

KW - lithium lanthanum titanate

KW - lithium-ion battery

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KW - perovskite oxides

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DO - 10.1021/acsami.5b10877

M3 - RGC 21 - Publication in refereed journal

SN - 1944-8244

VL - 8

SP - 1486

EP - 1492

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 2

ER -

Growth of Lithium Lanthanum Titanate Nanosheets and Their Application in Lithium-Ion Batteries

Abstract

Bibliographical note

Funding

UN SDGs

Research Keywords

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