Journal Article FZJ-2022-00982

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Conductivity, microstructure and mechanical properties of tape-cast LATP with LiF and SiO2 additives

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2022
Springer Science + Business Media B.V Dordrecht [u.a.]

Journal of materials science 57(2), 925 - 938 () [10.1007/s10853-021-06773-6]

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Abstract: LATP sheets with LiF and SiO2 addition prepared by tape casting as electrolytes for solid-state batteries were characterized regarding conductivity, microstructure and mechanical properties aiming towards an optimized composition. The use of additives permitted a lowering of the sintering temperature. Rietveld analyses of the samples with additives revealed a phase mixture of NaSICON modifications crystallizing with rhombohedral and orthorhombic symmetry as a superstructure with space group Pbca. It seems that LiF acts as a sintering additive but also as a mineralizer for the superstructure of LATP. As general trend, higher LiF to SiO2 ratios led to lower porosities and higher values of elastic modulus and hardness determined by indentation testing, but the presence of the orthorhombic LATP leads to a decrease of the ionic conductivity. Micro-pillar testing was used to assess the crack growth behavior revealing weak grain boundaries.

Classification:

Contributing Institute(s):
  1. Werkstoffstruktur und -eigenschaften (IEK-2)
  2. Werkstoffsynthese und Herstellungsverfahren (IEK-1)
Research Program(s):
  1. 1221 - Fundamentals and Materials (POF4-122) (POF4-122)

Appears in the scientific report 2023
Database coverage:
Medline ; Creative Commons Attribution CC BY 4.0 ; OpenAccess ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Springer ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; NationallizenzNationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
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Dokumenttypen > Aufsätze > Zeitschriftenaufsätze
Institutssammlungen > IMD > IMD-2
Institutssammlungen > IMD > IMD-1
Workflowsammlungen > Öffentliche Einträge
Workflowsammlungen > Publikationsgebühren
IEK > IEK-2
IEK > IEK-1
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Open Access

 Datensatz erzeugt am 2022-01-21, letzte Änderung am 2024-07-11


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