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Mesoporous Spinel Li4Ti5O12 Nanoparticles for High Rate Lithium-ion Battery Anodes

•Mesoporous Li4Ti5O12 nanoparticles were prepared by a simple hydrothermal method.•The mesoporous Li4Ti5O12 nanoparticles exhibited a diameter of 40±5nm and a pore-size distribution of 6 - 8nm.•Cells with the mesoporous Li4Ti5O12 anode showed excellent high rate electrochemical properties. Mesoporou... Full description

Journal Title: Electrochimica Acta 1 July 2014, Vol.133, pp.578-582
Main Author: Liu, Weijian
Other Authors: Shao, Dan , Luo, Guoen , Gao, Qiongzhi , Yan, Guangjie , He, Jiarong , Chen, Dongyang , Yu, Xiaoyuan , Fang, Yueping
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0013-4686 ; DOI: 10.1016/j.electacta.2014.04.072
Link: http://dx.doi.org/10.1016/j.electacta.2014.04.072
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recordid: sciversesciencedirect_elsevierS0013-4686(14)00819-6
title: Mesoporous Spinel Li4Ti5O12 Nanoparticles for High Rate Lithium-ion Battery Anodes
format: Article
creator:
  • Liu, Weijian
  • Shao, Dan
  • Luo, Guoen
  • Gao, Qiongzhi
  • Yan, Guangjie
  • He, Jiarong
  • Chen, Dongyang
  • Yu, Xiaoyuan
  • Fang, Yueping
subjects:
  • Lithium Titanate
  • Mesoporous Structure
  • Nanoparticle
  • Anode Material
  • Lithium-Ion Battery
ispartof: Electrochimica Acta, 1 July 2014, Vol.133, pp.578-582
description: •Mesoporous Li4Ti5O12 nanoparticles were prepared by a simple hydrothermal method.•The mesoporous Li4Ti5O12 nanoparticles exhibited a diameter of 40±5nm and a pore-size distribution of 6 - 8nm.•Cells with the mesoporous Li4Ti5O12 anode showed excellent high rate electrochemical properties. Mesoporous spinel lithium titanate (Li4Ti5O12) nanoparticles with the diameter of 40±5nm and the pore-size distribution of 6 - 8nm were prepared by a simple hydrothermal method. As an anode material for lithium-ion batteries, these spinel Li4Ti5O12 mesoporous nanoparticles exhibited desirable lithium storage properties with an initial discharge capacity of 176 mAh g−1 at 1C rate and a capacity of approximately 145 mAh g−1 after 200 cycles at a high rate of 20C. These excellent electrochemical properties at high charge/discharge rates are due to the mesoporous nano-scale structures with small size particles, uniform mesopores and larger electrode/electrolyte contact area, which shortens the diffusion path for both electrons and Li+ ions, and offers more active sites for Li+ insertion-extraction process.
language: eng
source:
identifier: ISSN: 0013-4686 ; DOI: 10.1016/j.electacta.2014.04.072
fulltext: fulltext
issn:
  • 00134686
  • 0013-4686
url: Link


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titleMesoporous Spinel Li4Ti5O12 Nanoparticles for High Rate Lithium-ion Battery Anodes
creatorLiu, Weijian ; Shao, Dan ; Luo, Guoen ; Gao, Qiongzhi ; Yan, Guangjie ; He, Jiarong ; Chen, Dongyang ; Yu, Xiaoyuan ; Fang, Yueping
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identifierISSN: 0013-4686 ; DOI: 10.1016/j.electacta.2014.04.072
subjectLithium Titanate ; Mesoporous Structure ; Nanoparticle ; Anode Material ; Lithium-Ion Battery
description•Mesoporous Li4Ti5O12 nanoparticles were prepared by a simple hydrothermal method.•The mesoporous Li4Ti5O12 nanoparticles exhibited a diameter of 40±5nm and a pore-size distribution of 6 - 8nm.•Cells with the mesoporous Li4Ti5O12 anode showed excellent high rate electrochemical properties. Mesoporous spinel lithium titanate (Li4Ti5O12) nanoparticles with the diameter of 40±5nm and the pore-size distribution of 6 - 8nm were prepared by a simple hydrothermal method. As an anode material for lithium-ion batteries, these spinel Li4Ti5O12 mesoporous nanoparticles exhibited desirable lithium storage properties with an initial discharge capacity of 176 mAh g−1 at 1C rate and a capacity of approximately 145 mAh g−1 after 200 cycles at a high rate of 20C. These excellent electrochemical properties at high charge/discharge rates are due to the mesoporous nano-scale structures with small size particles, uniform mesopores and larger electrode/electrolyte contact area, which shortens the diffusion path for both electrons and Li+ ions, and offers more active sites for Li+ insertion-extraction process.
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abstract•Mesoporous Li4Ti5O12 nanoparticles were prepared by a simple hydrothermal method.•The mesoporous Li4Ti5O12 nanoparticles exhibited a diameter of 40±5nm and a pore-size distribution of 6 - 8nm.•Cells with the mesoporous Li4Ti5O12 anode showed excellent high rate electrochemical properties. Mesoporous spinel lithium titanate (Li4Ti5O12) nanoparticles with the diameter of 40±5nm and the pore-size distribution of 6 - 8nm were prepared by a simple hydrothermal method. As an anode material for lithium-ion batteries, these spinel Li4Ti5O12 mesoporous nanoparticles exhibited desirable lithium storage properties with an initial discharge capacity of 176 mAh g−1 at 1C rate and a capacity of approximately 145 mAh g−1 after 200 cycles at a high rate of 20C. These excellent electrochemical properties at high charge/discharge rates are due to the mesoporous nano-scale structures with small size particles, uniform mesopores and larger electrode/electrolyte contact area, which shortens the diffusion path for both electrons and Li+ ions, and offers more active sites for Li+ insertion-extraction process.
pubElsevier Ltd
doi10.1016/j.electacta.2014.04.072
eissn18733859
date2014-07-01