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Laser-induced breakdown spectroscopy : A versatile tool for quality-controlled development of Li-based battery systems

Smyrek, Peter; Zheng, Yijing; Seifert, Hans Jürgen; Pfleging, Wilhelm

Abstract:
Laser-induced breakdown spectroscopy (LIBS) is a relatively new diagnostic approach, which enables quantitative characterization of elemental composition, concentration and its distribution in lithium-ion based battery materials. A rather small research community is so far dealing with this topic, e.g., studying lithium composition in electrodes, analysis of binder distribution in composite thick films, or 3D imaging of solid-state electrolytes for lithium-ion batteries. At KIT, rapid analysis of large footprint electrodes was established for the first time regarding time-saving and controlled material screenings, and for recording of three-dimensional elemental profiles of entire electrodes. This analytic tool could also be easily implemented in battery manufacturing, even during continuous production. Anymore, the use of LIBS after battery operation provides additional information about cell cycling behavior, degradation mechanisms, and local lithium-ion insertion. It could be shown that LIBS is a powerful analysis tool for configuration of electrode designs, based on influencing factors such as porosity, thickness or laser-assisted surface modification. ... mehr



Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Publikationstyp Vortrag
Publikationsdatum 05.02.2020
Sprache Englisch
Identifikator KITopen-ID: 1000125895
HGF-Programm 37.01.02 (POF III, LK 01)
Components and Cells
Veranstaltung 14th Laser-based Micro- and Nanoprocessing (2020), San Francisco, CA, USA, 03.02.2020 – 06.02.2020
Projektinformation DFG, DFG EIN, PF 392/9-1
Externe Relationen Siehe auch
Schlagwörter laser-induced breakdown spectroscopy lithium-ion battery cathode anode laser structuring electrode manufacturing
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