Berlin 2012 – wissenschaftliches Programm
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AKE: Arbeitskreis Energie
AKE 5: Nanotechnologies for Energy Applications
AKE 5.2: Vortrag
Montag, 26. März 2012, 12:00–12:15, A 151
(contribution withdrawn) Chemical Vapor Synthesis of Li7La3Zr2O12 as Solid-State Electrolyte for Batteries — •Ruzica Djenadic1,2,3 and Horst Hahn1,2,3 — 1Joint Research Laboratory Nanomaterials - Technical University Darmstadt and Karlsruhe Institute of Technology, Germany — 2Institute for Nanotechnology, Karlsruhe Institute of Technology, Germany — 3Ulm Helmholtz Institute, Karlsruhe Institute of Technology, Germany
Present lithium ion battery technology is based on liquid organic electrolytes, which have several disadvantages related to their safety due to potential electronic short circuits of the electrodes, leakage of the liquid and additionally low energy densities. On the other hand, solid electrolytes are promising candidates to replace currently used liquid electrolytes as they are highly ionic conductive, chemically and electrochemically stabile. Recently, lithium ion conducting garnet-like oxides (e.g. Li7La3Zr2O12) has been seen as promising solid electrolytes for all-solid-state lithium ion rechargeable batteries. These oxides are usually synthesized using the conventional solid-state reactions or sol-gel method. Herein, we report the synthesis of Li7La3Zr2O12 using the chemical vapor synthesis. This is a non-equilibrium technique where precursors are homogenously mixed on the molecular level in the gas phase and nanoscaled powders of high purity, crystallinity and a narrow particle size distribution can be obtained.