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Characterization of Lithium Phosphate Deposit by Atmospheric Plasma Spraying

  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Plasma spraying was used to deposit Li3PO4 for the applications to all-solid-state lithium battery (ASS-LB) electrolyte. Sintered dense powder was used for plasma spraying in three different size ranges. The effects of powder particle size and spray distance were investigated on the deposit composition and microstructure. The microstructure, crystal structure and composition of the Li3PO4 deposit were characterized using SEM, XRD, ICP-MS and FTIR. The result shows that the sintered dense Li3PO4 powders present a high temperature orthorhombic phase γ-Li3PO4, being different from β-Li3PO4 of agglomerated Li3PO4. Plasma-sprayed Li3PO4 coating presents a dense microstructure with a similar fractured surface morphology to that of sintered bulk. The coating retains the phase structure of the sintered powder. The atomic ratio Li/P of plasma-sprayed Li3PO4 deposits increased with the increase of the spray distance in a range of 3.02-3.16, being a little larger than the stoichiometric ratio of Li3PO4. The deposit by the smaller powders than 30 μm exhibits a higher Li/P ratio of 3.16.

Original languageEnglish
Title of host publicationInternational Thermal Spray Conference and Exposition
Subtitle of host publicationVersatile Surface Engineering for Environmental Solutions, ITSC 2021 - Proceedings
EditorsFardad Azarmi, Xing Chen, J. Cizek, Cristian V. Cojocaru, Bertrand Jodoin, Y. Lau, Ruben Fernandez, O. Ozdemir, H. Salimi Jazi, F. Toma
PublisherASM International
Pages682-687
Number of pages6
ISBN (Electronic)9781713831303
StatePublished - 2021
Event2021 International Thermal Spray Conference and Exposition, ITSC 2021 - Virutal, Online
Duration: 24 May 202127 May 2021

Publication series

NameInternational Thermal Spray Conference and Exposition: Versatile Surface Engineering for Environmental Solutions, ITSC 2021 - Proceedings

Conference

Conference2021 International Thermal Spray Conference and Exposition, ITSC 2021
CityVirutal, Online
Period24/05/2127/05/21

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