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1 April 2022 Proof of degradation processes in thick film Li(Ni1/3Mn1/3Co1/3)O2 and LiFePO4 cathodes by laser-induced breakdown spectroscopy
Peter Smyrek, Hans Jürgen Seifert, Wilhelm Pfleging
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Proceedings Volume PC11989, Laser-based Micro- and Nanoprocessing XVI; PC119890C (2022) https://doi.org/10.1117/12.2609726
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
Nowadays, requirements in lithium-ion battery technology tend to a contemporaneous characteristic of high energy and high power density, which presume a Pareto optimum in each step of layout design. One approach that could cover the demands of simultaneously high energy and power density regulations is the use of the so-called 3D battery concept, which enables short lithium-ion diffusion pathways and a reduced cell impedance. In this study, commercial lithium-iron-phosphate (LFP) and tape-casted lithium-nickel-manganese-cobalt-oxide (NMC) cathodes were investigated regarding degradation processes during fast discharging conditions. The visualization of such discovered regions were determined in unstructured and laser-structured electrodes by applying laser-induced breakdown spectroscopy (LIBS). Post mortem LIBS analyses of laser structured and unstructured LFP and NMC electrodes were correlated with electrochemical data offering new perspectives in studying degradation processes.
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Peter Smyrek, Hans Jürgen Seifert, and Wilhelm Pfleging "Proof of degradation processes in thick film Li(Ni1/3Mn1/3Co1/3)O2 and LiFePO4 cathodes by laser-induced breakdown spectroscopy", Proc. SPIE PC11989, Laser-based Micro- and Nanoprocessing XVI, PC119890C (1 April 2022); https://doi.org/10.1117/12.2609726
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KEYWORDS
Electrodes
Laser induced breakdown spectroscopy
3D displays
Associative arrays
Diffusion
High power lasers
Laser processing
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