Dresden 2017 – scientific programme
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MM: Fachverband Metall- und Materialphysik
MM 15: Symposium SYLI: Interfacial Challenges in Solid-State Li Ion Batteries - Interface-dominated behaviour
MM 15.3: Talk
Monday, March 20, 2017, 16:15–16:30, IFW A
Microstructural Properties of Li1.3Al0.3Ti1.7(PO4)3 Solid-State Electrolyte — •Deniz Cihan Gunduz1,2, Roland Schierholz1, Shicheng Yu1,2, Andreas Mertens1,2, Hermann Tempel1, Hans Kungl1, and Rüdiger-A Eichel1,2,3 — 1Forschungszentrum Jülich, Institute of Energy and Climate Research, IEK-9, 52425 Jülich, Germany — 2RWTH Aachen University, Institute of Physical Chemistry, 52074 Aachen, Germany — 3Jülich-Aachen Research Alliance, Section JARA-Energy, Germany
Lithium-ion batteries are important in daily life. One task is to replace liquid electrolytes by solid ones and Li1.3Al0.3Ti1.7(PO4)3 (LATP) is a promising candidate exhibiting high ionic conductivities. For further development it is important to understand the influence of the microstructure on the ionic conductivity. Solid state electrolytes have been mainly investigated via means of electron microscopy (Scanning Electron Microscopy as well as Transmission Electron Microscopy). Here we combine these techniques with Laser Scanning Microscopy (LSM) to study the microstructure, such as grain size, grain boundary width, porosity and secondary phase content and distribution of LATP pellets sintered at different temperatures; and draw a relation to impedance measured on these pellets.