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This work was aimed to investigate a new type of solid state lithium (Li) ion conductor as electrolyte for all solid-state Li-ion batteries. A metal organic framework (MOF) MIL-121 was modified in two different ways in order to become Li-ion conductive. The post synthetic modifications (PSM) were lithiation with lithium acetate (LiAc) and lithium hydroxide (LiOH) as well as esterification of the carboxylic groups of MIL-121 with methanol (MeOH), ethanol (EtOH) and isopropanol. After PSM the porous samples were soaked with different liquids like common liquid electrolytes, which leads to a decreased activation energy of Li-ion jumps in the crystal lattice meaning an increased Li-ion conductivity of the material. Esterified MIL-121 was soaked with ionic liquids containing lithium bis(trifluoromethane)sulfonimide (LiTFSI), because the introduction of Li-ions to the structure was necessary.

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Zettl, Roman
1999-2003 Elementary school Feld am See, 2003-2011 Grammer school in Villach St.Martin, 2011-2012 Military service in Villach, 2012-2015 Bachelor´s programme Environmental Systems Sciences / Natural Sciences-Technology in Graz, 2015-2017 Master´s programme Technical Chemistry in Graz, 2017- Doctoral programme in Engineering Sciences at TU Graz.

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