Structure and dynamics of the fast lithium ion conductor “Li7La3Zr2O12”
University of Giessen · Leibniz University Hannover · +6 more institutions
Abstract
The solid lithium-ion electrolyte "Li(7)La(3)Zr(2)O(12)" (LLZO) with a garnet-type structure has been prepared in the cubic and tetragonal modification following conventional ceramic syntheses routes. Without aluminium doping tetragonal LLZO was obtained, which shows a two orders of magnitude lower room temperature conductivity than the cubic modification. Small concentrations of Al in the order of 1 wt% were sufficient to stabilize the cubic phase, which is known as a fast lithium-ion conductor. The structure and ion dynamics of Al-doped cubic LLZO were studied by impedance spectroscopy, dc conductivity measurements, (6)Li and (7)Li NMR, XRD, neutron powder diffraction, and TEM precession electron…
Citation impact
- FWCI
- 20.81
- Percentile
- 100%
- References
- 42
Authors
13Topics & keywords
- Tetragonal crystal system
- Ion
- Materials science
- Conductivity
- Lithium (medication)
- Analytical Chemistry (journal)
- Activation energy
- Neutron diffraction
- Affordable and clean energy