Nano Energy, volume 41, pages 626-633

First-principles insight into the structural fundamental of super ionic conducting in NASICON MTi2(PO4)3 (M = Li, Na) materials for rechargeable batteries

Publication typeJournal Article
Publication date2017-11-01
Journal: Nano Energy
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor17.6
ISSN22112855
General Materials Science
Electrical and Electronic Engineering
Renewable Energy, Sustainability and the Environment
Abstract
The electrochemical property of solid electrolyte plays a key role in stabilizing and enhancing the performance of all solid Li-ion battery, which means numerous effort is necessitated to explore and design better solid electrolytes. In this context, density functional theory calculations (DFT) were employed to investigate the electronic structures and ionic transport properties of NASICON MTi2(PO4)3 (M = Li, Na) materials aiming to elucidate the fast-ionic conductivity mechanism. The calculation results demonstrated that during the M ion migration, the Li/Na ions exhibit in both vacancy assisted and interstitial hopping, while the interstitial Li/Na diffusion with activation energies of 0.25 eV for Li and 0.49 eV for Na, is the kinetically favorable transport mechanism in their thermo-dynamically equilibrated configurations. However, the appearance of the interstitial M ion is strongly related to the ionic defect states and temperature, which indicates in real condition, two kinds of diffusion mechanism exhibit synergistic effect on the ion transport to realize the fast ion conducting in MTi2(PO4)3 (M = Li, Na) materials.

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Lu X. et al. First-principles insight into the structural fundamental of super ionic conducting in NASICON MTi2(PO4)3 (M = Li, Na) materials for rechargeable batteries // Nano Energy. 2017. Vol. 41. pp. 626-633.
GOST all authors (up to 50) Copy
Lu X., Wang S., Xiao R., Shi S., Li H., Chen L. First-principles insight into the structural fundamental of super ionic conducting in NASICON MTi2(PO4)3 (M = Li, Na) materials for rechargeable batteries // Nano Energy. 2017. Vol. 41. pp. 626-633.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.nanoen.2017.09.044
UR - https://doi.org/10.1016/j.nanoen.2017.09.044
TI - First-principles insight into the structural fundamental of super ionic conducting in NASICON MTi2(PO4)3 (M = Li, Na) materials for rechargeable batteries
T2 - Nano Energy
AU - Wang, Senhao
AU - Lu, Xia
AU - Xiao, Ruijuan
AU - Shi, Siqi
AU - Li, Hong
AU - Chen, Liquan
PY - 2017
DA - 2017/11/01 00:00:00
PB - Elsevier
SP - 626-633
VL - 41
SN - 2211-2855
ER -
BibTex
Cite this
BibTex Copy
@article{2017_Lu,
author = {Senhao Wang and Xia Lu and Ruijuan Xiao and Siqi Shi and Hong Li and Liquan Chen},
title = {First-principles insight into the structural fundamental of super ionic conducting in NASICON MTi2(PO4)3 (M = Li, Na) materials for rechargeable batteries},
journal = {Nano Energy},
year = {2017},
volume = {41},
publisher = {Elsevier},
month = {nov},
url = {https://doi.org/10.1016/j.nanoen.2017.09.044},
pages = {626--633},
doi = {10.1016/j.nanoen.2017.09.044}
}
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