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Elemental Mapping of Entire Thick Film Electrodes By Laser-Induced Breakdown Spectroscopy

Smyrek, Peter; Liu, Xinyi M.; Arnold, Craig B.; Seifert, Hans Jürgen; Pfleging, Wilhelm

Abstract:
Next generation lithium-ion batteries require new research and development in the field of high energy / high power materials and concepts regarding cell design and electrode architectures. Particularly for automotive applications, the identification and control of degradation processes are main issues for maintaining long cell life-time and high safety standards. One promising approach for the visualization of elemental composition in lithium-based battery systems is the appliance of laser-induced breakdown spectroscopy (LIBS), which enables a rapid screening of materials, e.g., entire electrodes. So far, this diagnostic approach is being used for semi-quantitative investigation of battery components. However, at KIT, a full-quantitative analysis was developed for characterizing the lithium distribution and concentration as function of state-of-charge. From technical point of view, recording of three-dimensional (3D) elemental profiles, verification of material stoichiometry or even a quality controlled analysis during continuous roll-to-roll production can be easily performed under standard ambient conditions. In this work, we will focus on establishing LIBS for quantitative chemical mapping of entire electrodes after electrochemical cycling. ... mehr



Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Poster
Publikationsdatum 07.10.2020
Sprache Englisch
Identifikator KITopen-ID: 1000126094
HGF-Programm 37.01.02 (POF III, LK 01)
Components and Cells
Veranstaltung Pacific Rim Meeting on Electrochemical and Solid State Science (PRiME 2020), Honolulu, HI, USA, 04.10.2020 – 09.10.2020
Projektinformation DFG, DFG EIN, PF 392/9-1
Bemerkung zur Veröffentlichung Symposium A01 - Intercalation Chemistry for Electrochemical Energy Storage Technologies: In Honor of M. Stanley Whittingham
Externe Relationen Abstract/Volltext
Schlagwörter lithium nickel manganese cobalt oxide, ultrafast laser structuring, 3D electrode architecture, lithium-ion battery, laser-induced breakdown spectroscopy
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