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MM: Fachverband Metall- und Materialphysik

MM 26: Poster Session

MM 26.59: Poster

Dienstag, 23. März 2010, 14:45–16:30, Poster C

Electrochemical investigation of nanoscaled LiCoO₂ from different synthesis processes — •Carsten Jaehne, Christine Täschner, Andreia Ioana Popa, Rüdiger Klingeler, and Bernd Büchner — Leibniz Institute for Solid State and Materials Research Dresden

Self-assembled nanoscaled cathode materials promise increased rate performance in Li-ion batteries. We report on the conventional and the microwave assisted hydrothermal synthesis of LiCoO₂ nanostructures. We discuss the effect of both synthesis processes as well as of the variation of the process temperatures between 120^∘C and 200^∘C and of different precursors on the morphology and electrochemical properties of the resulting material. Our electron microscopy, x-ray diffraction and magnetisation studies provide information about the phase, the morphology and the valency of the Co-ions. Cyclic Voltammetry and Galvanostatic Cycling techniques have been applied to evaluate the electrochemical performance.