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AKE: Arbeitskreis Energie
AKE 1: Innovative Contributions for the Energy System Transformation
AKE 1.6: Vortrag
Montag, 10. März 2025, 16:00–16:15, HS HISKP
Optical, structural and electrochemical properties of re-synthesized Graphite powder for Anode battery application — •slaheddine Jabri1, Anna Rollin2, Sukanya Sukanya3, René Wilhelm2, Michael Kurrat3, Uta Schlickum1, and Markus Etzkorn1 — 1Technische Universität Braunschweig, Institute of Applied Physics, Meldensohn Straße2, 38106 Braunschweig, Germany — 2Mendelssohnstraße 2 — 3Technische Universität Clausthal, Institute of Organic Chemistry, Leibnitzstraße 6, 38678 Clausthal-Zellerfeld, Germany
By focusing on preserving the components of Li-Ion battery material through cheaper and envi-ronmental friendly methods, recycling process could introduce scavenged impurities into resyn-thesized material and modify its structural and morphological properties. In this work, we investi-gate the optical, structural and electrochemical properties of recycled Graphite compared to the new material. Our findings reveal that a proper recycling process can remove the Solid Electrolyte Interphase (SEI) layer, which is of significant importance in battery performance. The analysis showed that proper cleaning can significant reduce the amounts of organic and inorganic impuri-ties in the graphite, leading to an improvement in material quality. As a result, the battery perfor-mance can even be enhanced by 89% after 200 charge-discharge cycles compared to the commer-cial base material, demonstrating the potential of recycling methods for improving battery life and efficiency
Keywords: Graphite; Raman spectroscopy; XPS, SEM; Lithium Batterie; SEI Layer