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Recent progress in using laser structured high energy electrode materials for next generation batteries

Pfleging, Wilhelm; Smyrek, Peter; Rakebrandt, Jan-Hendric; Chen, X.; Zhang, Y.; Zheng, Yijing

High production costs, restricted process reliability, small energy- and power-density, as well as relatively short operational lifetime are the main issues of lithium-ion batteries (LIBs). LIBs with high-energy and high-power density can be realized by introducing a three-dimensional (3D) battery concept, which offers an improved electrolyte transfer in thick film electrodes and an improved lithium-ion transport kinetic. For developing next generation batteries including the 3D battery concept for large footprint areas, high energy materials such as nickel-enriched Lithium-Nickel-Manganese-Cobalt-Oxide (NMC) for cathodes and silicon-based anodes are introduced. The main drawbacks of these types of active materials regarding commercialization are their rather small lifetime due to enhanced mechanical degradation and their restricted chemical stability during electrochemical cycling. Ultrafast laser processing for establishing an advanced electrode design is flanked by an advanced material design, i.e., thin film passivation of active material for maintaining structural and chemical stability on particle level. Such thin film passivation is realized for anodes and cathodes by carbon- or alumina-coated silicon nanoparticles and LPO(Lithium-Phosphate)-coated NMC, respectively. ... mehr

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DOI: 10.1117/12.2515726
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Publikationstyp Vortrag
Publikationsdatum 07.02.2019
Sprache Englisch
Identifikator KITopen-ID: 1000100362
HGF-Programm 37.01.02 (POF III, LK 01) Components and Cells
Veranstaltung 13 Laser-Based Micro- and Nanoprocessing (2019), San Francisco, CA, USA, 02.02.2019 – 07.02.2019
Externe Relationen Konferenz
Schlagwörter Ultrafast laser ablation cathode anode lithium-ion battery 3D battery NMC silicon
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