This title appears in the Scientific Report :
2023
Please use the identifier:
http://dx.doi.org/10.1007/s10853-021-06773-6 in citations.
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2022-00982 in citations.
Conductivity, microstructure and mechanical properties of tape-cast LATP with LiF and SiO2 additives
Conductivity, microstructure and mechanical properties of tape-cast LATP with LiF and SiO2 additives
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 temperatur...
Saved in:
Personal Name(s): | Gross, Jürgen Peter (Corresponding author) |
---|---|
Malzbender, Jürgen / Dashjav, Enkhtsetseg / Tietz, Frank / Schwaiger, Ruth | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEK-1 Werkstoffstruktur und -eigenschaften; IEK-2 |
Published in: | Journal of materials science, 57 (2022) 2, S. 925 - 938 |
Imprint: |
Dordrecht [u.a.]
Springer Science + Business Media B.V
2022
|
DOI: |
10.1007/s10853-021-06773-6 |
DOI: |
10.34734/FZJ-2022-00982 |
Document Type: |
Journal Article |
Research Program: |
Fundamentals and Materials |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2022-00982 in citations.
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. |