Thermal evolution of NASICON type solid-state electrolytes with lithium at high temperature via in situ scanning electron microscopy

We present the thermal evolution of two NASICON-type ceramics namely LATP (Li 1+ x Al x Ti 2− x (PO 4 ) 3 ) and LAGP (Li 1+ x Al x Ge 2− x (PO 4 ) 3 ) by monitoring the electrode–electrolyte interfaces ( i.e. , Li/LATP and Li/LAGP) at temperatures up to 330 °C via in situ scanning electron microscop...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2021-10, Vol.57 (84), p.11076-11079
Main Authors: Kaboli, Shirin, Girard, Gabriel, Zhu, Wen, Gheorghe Nita, Alina, Vijh, Ashok, George, Chandramohan, Trudeau, Michel L., Paolella, Andrea
Format: Article
Language:English
Subjects:
Decomposition
Electrolytes
High temperature
Lithium base alloys
Molten salt electrolytes
Scanning electron microscopy
Solid electrolytes
Temperature
Thermal evolution
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Summary:We present the thermal evolution of two NASICON-type ceramics namely LATP (Li 1+ x Al x Ti 2− x (PO 4 ) 3 ) and LAGP (Li 1+ x Al x Ge 2− x (PO 4 ) 3 ) by monitoring the electrode–electrolyte interfaces ( i.e. , Li/LATP and Li/LAGP) at temperatures up to 330 °C via in situ scanning electron microscopy, post-mortem energy-dispersive spectroscopy, and X-ray diffraction. Upon melting of Li and contacting electrolytes, LAGP decomposes completely to form Li based alloys, while LATP is partially decomposed without alloying.
ISSN:1359-7345
1364-548X
DOI:10.1039/d1cc04059f