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

Mesoporous spinel lithium titanate (Li Ti O ) nanoparticles with the diameter of 40 ± 5 nm and the pore-size distribution of 6 - 8 nm were prepared by a simple hydrothermal method. As an anode material for lithium-ion batteries, these spinel Li Ti O mesoporous nanoparticles exhibited desirable lithi... Full description

Journal Title: Electrochimica Acta 01 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 ; E-ISSN: 1873-3859 ; DOI: 10.1016/j.electacta.2014.04.072
Link: https://www.sciencedirect.com/science/article/pii/S0013468614008196
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recordid: elsevier_sdoi_10_1016_j_electacta_2014_04_072
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
  • Engineering
  • Chemistry
ispartof: Electrochimica Acta, 01 July 2014, Vol.133, pp.578-582
description: Mesoporous spinel lithium titanate (Li Ti O ) nanoparticles with the diameter of 40 ± 5 nm and the pore-size distribution of 6 - 8 nm were prepared by a simple hydrothermal method. As an anode material for lithium-ion batteries, these spinel Li Ti O mesoporous nanoparticles exhibited desirable lithium storage properties with an initial discharge capacity of 176 mAh g at 1 rate and a capacity of approximately 145 mAh g after 200 cycles at a high rate of 20 C. 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 ; E-ISSN: 1873-3859 ; DOI: 10.1016/j.electacta.2014.04.072
fulltext: fulltext
issn:
  • 0013-4686
  • 00134686
  • 1873-3859
  • 18733859
url: Link


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subjectLithium Titanate ; Mesoporous Structure ; Nanoparticle ; Anode Material ; Lithium-Ion Battery ; Engineering ; Chemistry
descriptionMesoporous spinel lithium titanate (Li Ti O ) nanoparticles with the diameter of 40 ± 5 nm and the pore-size distribution of 6 - 8 nm were prepared by a simple hydrothermal method. As an anode material for lithium-ion batteries, these spinel Li Ti O mesoporous nanoparticles exhibited desirable lithium storage properties with an initial discharge capacity of 176 mAh g at 1 rate and a capacity of approximately 145 mAh g after 200 cycles at a high rate of 20 C. 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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