Ceramics International, volume 46, issue 12, pages 20529-20536

Optimization of sintering process on Li1+Al Ti2-(PO4)3 solid electrolytes for all-solid-state lithium-ion batteries

Pei Yi Yen 1
Meng-Lun Lee 2
Duncan H. Gregory 3
Wei-Ren Liu 1
Publication typeJournal Article
Publication date2020-08-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor5.2
ISSN02728842
Materials Chemistry
Surfaces, Coatings and Films
Ceramics and Composites
Electronic, Optical and Magnetic Materials
Process Chemistry and Technology
Abstract
In this study, a NASICON-structured Li1.3Al0.3Ti1.7(PO4)3 (LATP) powder is prepared by hydrothermal methods followed by calcination, cold pressing and post-sintering processes . The white, solid product is characterized thoroughly using powder X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) equipped with Energy Dispersive X-ray Spectroscopy (EDS). The conductivity of the material is measured by a impedance spectroscopy as a function of temperature. Initially, hydrothermal synthesis yields a material isostructural with the orthorhombic oxyphosphate, LiTiOPO4. EDS analysis shows that the distribution of aluminum throughout this material is uniform. A systematic study is then performed to investigate how altering the sintering parameters (such as powder pre-sintering temperature and pellet sintering temperature) affect the formation of LATP. The structure is determined by Rietveld refinement against XRD data and the effects of sintering temperature on porosity, microstructure and electrical conductivity were resolved. The experimental results show that the optimum pre-sintering and sintering temperatures of LATP powders and pellets respectively are 900 °C and 1100 °C. These conditions produce materials with the highest density (99.07% of theoretical), superior conductivity (grain-, grain boundary- and total lithium-ion conductivities of 6.57 × 10−4, 4.59 × 10−4 and 2.70 × 10−4 S cm−1, respectively) and with an activation energy for Li motion of 0.17 eV.

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GOST Copy
Yen P. Y. et al. Optimization of sintering process on Li1+Al Ti2-(PO4)3 solid electrolytes for all-solid-state lithium-ion batteries // Ceramics International. 2020. Vol. 46. No. 12. pp. 20529-20536.
GOST all authors (up to 50) Copy
Yen P. Y., Lee M., Gregory D. H., Liu W. Optimization of sintering process on Li1+Al Ti2-(PO4)3 solid electrolytes for all-solid-state lithium-ion batteries // Ceramics International. 2020. Vol. 46. No. 12. pp. 20529-20536.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.ceramint.2020.05.162
UR - https://linkinghub.elsevier.com/retrieve/pii/S0272884220314504
TI - Optimization of sintering process on Li1+Al Ti2-(PO4)3 solid electrolytes for all-solid-state lithium-ion batteries
T2 - Ceramics International
AU - Yen, Pei Yi
AU - Lee, Meng-Lun
AU - Gregory, Duncan H.
AU - Liu, Wei-Ren
PY - 2020
DA - 2020/08/01 00:00:00
PB - Elsevier
SP - 20529-20536
IS - 12
VL - 46
SN - 0272-8842
ER -
BibTex |
Cite this
BibTex Copy
@article{2020_Yen,
author = {Pei Yi Yen and Meng-Lun Lee and Duncan H. Gregory and Wei-Ren Liu},
title = {Optimization of sintering process on Li1+Al Ti2-(PO4)3 solid electrolytes for all-solid-state lithium-ion batteries},
journal = {Ceramics International},
year = {2020},
volume = {46},
publisher = {Elsevier},
month = {aug},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0272884220314504},
number = {12},
pages = {20529--20536},
doi = {10.1016/j.ceramint.2020.05.162}
}
MLA
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MLA Copy
Yen, Pei Yi, et al. “Optimization of sintering process on Li1+Al Ti2-(PO4)3 solid electrolytes for all-solid-state lithium-ion batteries.” Ceramics International, vol. 46, no. 12, Aug. 2020, pp. 20529-20536. https://linkinghub.elsevier.com/retrieve/pii/S0272884220314504.
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