SKM 2023 – wissenschaftliches Programm
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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur
KFM 6: Poster
KFM 6.16: Poster
Dienstag, 28. März 2023, 17:00–19:00, P3
Control of structure and morphology of LiNi0.8Co0.1 Mn0.1 powder before and after calcination — •slaheddine Jabri1, Markus Rojer2, Georg Garnweitner2,3, Markus Etzkorn1,3, and Uta Schlickum1,3 — 1Institute of Applied Physics, Technische Universität Braunschweig, 38106 Braunschweig, Germany — 2Institute for Particle Technology, Technische Universität Braunschweig, 38104 Braunschweig, Germany — 3Laboratory for Emerging Nanometrology (LENA), Technische Universität Braunschweig, 38106 Braunschweig, Germany
The demand of high energy density of lithium battery cells has strongly increased in the last years to enable long-range electric vehicle applications. Nowadays one focus lies on the optimization of the material composition of LiNi0.8Co0.1Mn0.1 (NMC811) as the promotor cathode material, which has the advantage of high specific capacity. However, the synthesis of high quality NMC811 material is still difficult due to its structure and thermal instability. Here, the NMC811 powder is prepared from acetate precursors in a cheaper and more environmentally synthesis procedure. The structure and the morphology of pre-calcinated und calcinated NMC811 were investigated using (cross section) Scanning Electron Microscopy (FIB-SEM) and Raman Spectroscopy. Beside the internal structure of single particles, this study provides information about the impurities present in the powder. In addition, the result shows that a compact and ordered layered rhombohedral phase structure of the NMC811 powder is obtained after annealing to 800 and 850 °C.