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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 12: Poster 1
CPP 12.15: Poster
Montag, 5. September 2022, 18:00–20:00, P1
Influence of Solvent and Lithium Salt on the Structure and Performance of NCM111 Cathode for Lithium Ion Batteries — •Yuxin Liang1, Zhuijun Xu1, Kun Sun1, Tianfu Guan1, Fabian Apfelbeck1, Pan Ding2, and Peter Müller-Buschbaum1,3 — 1TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching — 2TU München, Walter Schottky Institute, Experimental Semiconductor Physics, 85748 Garching — 3MLZ, TU München, 85748 Garching
Lithium ion batteries (LIBs) with a wide range of applications have emerged as the most promising candidate for electrochemical energy storage due to its higher specific energies, volumetricenergy densities and power densities. However, lithium dendrite will growth and the Coulombic efficiency (CE) will decrease with Li plating and stripping. During past decades, more and more state-of-art materials has been developed to alleviate the abovementioned problems. Nevertheless, fundamental research on the component composition and the effect of additive and solvent on LIBs is still lacking. It is of great value to get a deep understanding and therefore optimize the fabrication process for future studies on the electrode/electrolyte interface of LIBs. In this project, we select the LiNi0.33Mn 0.33Co0.33O2 as cathode material to find out the effect of different solvents and extra lithium salt (LiTFSI) on the performance of LIBs. The Li/cathode cells were assembled to observe the battery performance and grazing incidence wide-angle X- ray scattering (GIWAXS) technique is used to detect structure change within the cathode before and after cycling.