Lithium-Ion Conductors based on MIL-121 Metal Organic Frameworks : A developing Field of Solid State Electrolytes

ISBN-13: 9786202207621 / Angielski / Miękka / 2017 / 84 str.

Roman Zettl; Ilie Hanzu

Opis

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.

O autorze

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.