Characterization of hot-pressed von Alpen type NASICON ceramic electrolytes
Journal Article
·
· Solid State Ionics
- Univ. of Michigan, Ann Arbor, MI (United States)
- Solid-ion Consulting LLC, Seattle, WA (United States)
- Ulsan National Institute of Science and Technology (UNIST) (South Korea)
The Na-ion conducting solid electrolyte NASICON is a promising solid state electrolyte (SSE) for use in Na based electrochemical systems. The effects of particle morphology and synthesis of von Alpen type NASICON via hot-pressing were investigated. Spray dried particles were shown to improve mechanical and electrochemical properties. X-ray diffraction, scanning electron microscopy, impulse excitation measurements, Vickers hardness, and impedance spectroscopy were used to correlate relationships between phase purity, microstructure, mechanical properties, and electrochemical properties. Scanning electron microscopy showed the presence of a glass phase as between 19.08% and 28.23% area percentage and a ZrO2 phase between 0.46% and 3.51% area percentage in the hot-pressed samples. Impulse excitation showed elastic modulus varying from 83.65 to 97.65 GPa. The first values of Poisson's ratio and shear modulus of NASICON are reported as between 0.23 and 0.26 and 33.87 to 38.79 GPa, respectively. Vickers hardness and fracture toughness measurements showed Vickers hardness ranging from 4.30 to 4.68 GPa and fracture toughness ranging from 1.05 to 1.09 MPa m½. Impedance spectroscopy showed grain conductivities ranging from 1.023 to 1.287 mS/cm, with grain boundary resistance percentages between 73.22 and 47.5%. Total conductivities ranged from 0.292 to 0.596 mS/cm, with 0.596 mS/cm being achieved at room temperature for the spray dried powders with lower grain boundary resistance percentages.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Joint Center for Energy Storage Research (JCESR)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1981767
- Alternate ID(s):
- OSTI ID: 1817237
- Journal Information:
- Solid State Ionics, Journal Name: Solid State Ionics Journal Issue: C Vol. 369; ISSN 0167-2738
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Processing temperature effects on molybdenum disilicide
Mechanical properties of NaSICON: a brief review
Microstructural effects on the hardness, elastic modulus and fracture toughness of CVD diamond
Journal Article
·
Sat Oct 31 23:00:00 EST 1992
· Journal of the American Ceramic Society; (United States)
·
OSTI ID:6858907
Mechanical properties of NaSICON: a brief review
Journal Article
·
Mon Nov 14 19:00:00 EST 2022
· Ionics
·
OSTI ID:2326073
Microstructural effects on the hardness, elastic modulus and fracture toughness of CVD diamond
Book
·
Wed Dec 30 23:00:00 EST 1998
·
OSTI ID:305563