Berlin 2018 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 68: Poster: Complex Fluids, Glasses, Granular

DY 68.23: Poster

Donnerstag, 15. März 2018, 15:30–18:00, Poster A

Nanostructured titania templated by amphiphilic diblock copolymer for lithium-ion battery anodes — •shanshan yin, Peter Müller-Buschbaum, and lin song — TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching

Lithium-ion batteries (LIBs) have been widely used in many aspects of modern life. Compared with conventional graphite anodes, titania possesses higher capacity and better operation safety, which makes it a promising substitute to the commonly used graphite anodes. However, problems such as gradual capacity decay and relative high intercalation potential hinder its practical application. It has been reported that nanostructured titania can efficiently improve the electrochemical performance. Therefore, in this work titania nanostructures are prepared via sol-gel synthesis in combination with the amphiphilic diblock copolymer poly(styrene-block-ethylene oxide) (PS-b-PEO) as structure-directing agent. The morphology of the obtained titania nanostructures is studied with optical microscopy (OM) and scanning electron microscopy (SEM), while the optical properties are investigated with UV/Vis spectroscopy and Photoluminescence (PL).