Journal of Alloys and Compounds, volume 979, pages 173610

Molten salt assisted synthesis and structure characteristic for high conductivity fluorine doped Li1.3Al0.3Ti1.7P3O12 solid electrolytes

Zhaolong Zhang ¹

Zhaoyong Chen

Zhao-Yong Chen ^{1, 2}

Huali Zhu ^{2, 3}

Yan Ji

Jun Yan ⁴

Junfei Duan

Jinhui Duan ^{1, 2}

Huamin Hu ^{1, 2}

Maohui Bai

Ming Bai ^{1, 2}

Hide authors affiliations Show authors affiliations: 4 affiliations

College of Materials Science and Engineering, Changsha University of Science and Technology, 410114, Changsha, Hunan Province, China |

Institute of New Energy and Power Battery, Changsha University of Science and Technology, 410114, Changsha, Hunan Province, China |

College of Energy and Power Engineering, Changsha University of Science and Technology, 410114, Changsha, Hunan Province, China |

⁴

College of Physics and Electronic Science, Changsha University of Science and Technology, 410114, Changsha, Hunan Province, China |

Publication type: Journal Article

Publication date: 2024-04-01

Elsevier

Journal: Journal of Alloys and Compounds

Quartile SCImago

Quartile WOS

Impact factor: 6.2

ISSN: 09258388

DOI: 10.1016/j.jallcom.2024.173610

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Materials Chemistry

Metals and Alloys

Mechanical Engineering

Mechanics of Materials

Abstract

To address the safety concerns surrounding liquid electrolyte lithium-ion batteries, the development of a safe and reliable solid electrolyte with high ionic conductivity is of utmost importance. In recent years, the NASICON-type Li1.3Al0.3Ti1.7(PO4)3 solid electrolyte has garnered increasing attention due to its impressive room temperature ionic conductivity and excellent chemical stability. However, its preparation is usually completed in high temperature up to 1000 ℃, which is high energy consumption. Herein, F-doped Li1.3Al0.3Ti1.7P3O12 solid electrolytes were synthesized by molten salt assisted synthesis with AlF3 as the precursor and flux, which were prepared at 800 ℃ with relative density of 95.39% and room temperature lithium ionic conductivity of 1.14×10-3 S cm-1. XRD results show that F doping can inhibit the formation of impurity phase LiTiPO5 to a certain extent, and is beneficial to improve the conductivity and density of LATP solid electrolyte. FT-IR spectra show that the addition of F changes the structural peak of PO43- and increases the number of bridge oxygen, thus enhancing the structural stability of LATP solid electrolyte. The SEM results show that the addition of F can promote the growth of grain at low temperature, increase the density of LATP electrolyte, and reduce the energy consumption. EDS, XPS and TEM results show that F has been successfully doped into LATP solid electrolyte crystals.

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Zhang Z. et al. Molten salt assisted synthesis and structure characteristic for high conductivity fluorine doped Li1.3Al0.3Ti1.7P3O12 solid electrolytes // Journal of Alloys and Compounds. 2024. Vol. 979. p. 173610.

GOST all authors (up to 50) Copy

Zhang Z., Chen Z., Chen Z., Zhu H., Yan J., Ji Y., Duan J., Duan J., Hu H., Bai M., Bai M. Molten salt assisted synthesis and structure characteristic for high conductivity fluorine doped Li1.3Al0.3Ti1.7P3O12 solid electrolytes // Journal of Alloys and Compounds. 2024. Vol. 979. p. 173610.

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RIS Copy

TY - JOUR

DO - 10.1016/j.jallcom.2024.173610

UR - https://linkinghub.elsevier.com/retrieve/pii/S0925838824001968

TI - Molten salt assisted synthesis and structure characteristic for high conductivity fluorine doped Li1.3Al0.3Ti1.7P3O12 solid electrolytes

T2 - Journal of Alloys and Compounds

AU - Zhang, Zhaolong

AU - Chen, Zhao-Yong

AU - Zhu, Huali

AU - Yan, Jun

AU - Duan, Jinhui

AU - Hu, Huamin

AU - Bai, Ming

AU - Chen, Zhaoyong

AU - Ji, Yan

AU - Duan, Junfei

AU - Bai, Maohui

PY - 2024

DA - 2024/04/01 00:00:00

PB - Elsevier

SP - 173610

VL - 979

SN - 0925-8388

ER -

BibTex

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BibTex Copy

@article{2024_Zhang,

author = {Zhaolong Zhang and Zhao-Yong Chen and Huali Zhu and Jun Yan and Jinhui Duan and Huamin Hu and Ming Bai and Zhaoyong Chen and Yan Ji and Junfei Duan and Maohui Bai},

title = {Molten salt assisted synthesis and structure characteristic for high conductivity fluorine doped Li1.3Al0.3Ti1.7P3O12 solid electrolytes},

journal = {Journal of Alloys and Compounds},

year = {2024},

volume = {979},

publisher = {Elsevier},

month = {apr},

url = {https://linkinghub.elsevier.com/retrieve/pii/S0925838824001968},

pages = {173610},

doi = {10.1016/j.jallcom.2024.173610}

}

Found error?

Publisher

Elsevier

Journal

Journal of Alloys and Compounds

Quartile SCImago

Quartile WOS

Impact factor

6.2

ISSN

09258388 (Print)