Journal Article

FZJ-2023-01909

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Effect of Low Environmental Pressure on Sintering Behavior ofNASICON-Type Li1.3Al0.3Ti1.7(PO4)3 Solid Electrolytes: An In Situ ESEMStudy

Camara, O.FZJ* ; Xu, Q.FZJ* ; Park, J.FZJ* ; Yu, S.FZJ* ; Lu, X.FZJ* ; Dzieciol, K.FZJ* ; Schierholz, R.FZJ* ; Tempel, H.FZJ* ; Kungl, H.FZJ* ; Chandramohan, G. ; Mayer, J.FZJ* ; Basak, S. (Corresponding author)FZJ* ; Eichel, R.-A.FZJ*

2023
ACS Publ. Washington, DC

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Please use a persistent id in citations: http://hdl.handle.net/2128/34355  doi:10.1021/acs.cgd.2c01098

Abstract: Solid-state sintering at high temperatures is commonly used to densify solid electrolytes. Yet, optimizing phase purity, structure, and grain sizes of solid electrolytes is challenging due to the lack of understanding of relevant processes during sintering. Here, we use an in situ environmental scanning electron microscopy (ESEM) to monitor the sintering behavior of NASICON-type Li1.3Al0.3Ti1.7(PO4)3 (LATP) at low environmental pressures. Our results show that while no major morphological changes are observed at 10–2 Pa and only coarsening is induced at 10 Pa, environmental pressures of 300 and 750 Pa lead to the formation of typically sintered LATP electrolytes. Furthermore, the use of pressure as an additional parameter in sintering allows the grain size and shape of electrolyte particles to be controlled.

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Contributing Institute(s):

1. Grundlagen der Elektrochemie (IEK-9)
2. Materialwissenschaft u. Werkstofftechnik (ER-C-2)

Research Program(s):

1. 1223 - Batteries in Application (POF4-122) (POF4-122)
2. 5351 - Platform for Correlative, In Situ and Operando Characterization (POF4-535) (POF4-535)
3. 5353 - Understanding the Structural and Functional Behavior of Solid State Systems (POF4-535) (POF4-535)
4. Electroscopy - Electrochemistry of All-solid-state-battery Processes using Operando Electron Microscopy (892916) (892916)

Appears in the scientific report 2023

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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