August 2016The ionic conductivity of the solid electrolyte Li1+xAlxGe2−x(PO4)3 (LAGP) can be significantly increased by replacing Ge4+ with Al3+ ions, which leads to an increased concentration of Li+ ions. The picture shows a pellet of LAGP that had been prepared by a solid-state reaction. The surface of the pellet was investigated using scanning electron microscopy (SEM) and mostly shows highly crystalline particles with a size of around 100 nm. In addition, some irregularly shaped particles are observed on the surface, which might be the result of a minor fraction of side phases. LAGP crystallizes in the NASICON structure (sodium superionic conductor, Na1+xZr2SixP3−xO12) with space group R-3c (top). Chains of face-sharing LiO6 - and GeO6/AlO6 - octahedra are linked via corner-sharing PO4-tetrahedra resulting in a three-dimensional network. (Picture submitted by Manuel Weiß.)https://www.uni-giessen.de/en/faculties/f08/departments/physchem/janek/gallerypotm/pom2016/BdM0816.png/viewhttps://www.uni-giessen.de/@@site-logo/logo.png
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August 2016
The ionic conductivity of the solid electrolyte Li1+xAlxGe2−x(PO4)3 (LAGP) can be significantly increased by replacing Ge4+ with Al3+ ions, which leads to an increased concentration of Li+ ions. The picture shows a pellet of LAGP that had been prepared by a solid-state reaction. The surface of the pellet was investigated using scanning electron microscopy (SEM) and mostly shows highly crystalline particles with a size of around 100 nm. In addition, some irregularly shaped particles are observed on the surface, which might be the result of a minor fraction of side phases. LAGP crystallizes in the NASICON structure (sodium superionic conductor, Na1+xZr2SixP3−xO12) with space group R-3c (top). Chains of face-sharing LiO6 - and GeO6/AlO6 - octahedra are linked via corner-sharing PO4-tetrahedra resulting in a three-dimensional network. (Picture submitted by Manuel Weiß.)
