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Laser structuring and functionalization of nanoscaled battery materials

Pfleging, Wilhelm ORCID iD icon 1; Meyer, Alexandra P. ORCID iD icon 1; Rist, Ulrich 1; Smyrek, Peter 1; Sterzl, Yannic 1; Zheng, Yijing ORCID iD icon 1; Zhu, Penghui 1
1 Institut für Angewandte Materialien – Angewandte Werkstoffphysik (IAM-AWP), Karlsruher Institut für Technologie (KIT)

Abstract:

Possible laser processes in battery manufacturing are quite diverse regarding the control of electrochemical characteristics: LIPSS on current collector surfaces are used to adjust the adhesion of composite electrodes to current collectors, laser surface patterning turns ceramic-coated separator materials into superwicking with regard to electrolyte wetting properties, and laser structuring of composite thick film electrodes is applied to generate 3D electrode architectures with shortened lithium-ion diffusion pathways. In the field of cathode thick film development, secondary particles with nanoscaled primary particles are used and ultrafast laser ablation is applied to pattern the composite electrodes to optimize the lithium ion diffusion kinetics by enlarging the active material surface with a view to reducing cell polarization, which develops at high battery power. This enables high energy batteries to be upgraded for operation at high power. In the field of anode development for electromotive vehicles, efforts are being made to develop silicon anodes in order to significantly increase the energy density. In addition, the issue of fast charging, mainly influenced by the anode architecture, is a major topic in research and industrial development. ... mehr


Preprint §
DOI: 10.5445/IR/1000157600
Veröffentlicht am 23.05.2023
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Angewandte Werkstoffphysik (IAM-AWP)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 15.03.2023
Sprache Englisch
Identifikator ISBN: 978-1-5106-5925-4
ISSN: 0038-7355, 0361-0748, 0277-786X, 1996-756X
KITopen-ID: 1000157600
HGF-Programm 38.02.02 (POF IV, LK 01) Components and Cells
Erschienen in Nanoscale and Quantum Materials: From Synthesis and Laser Processing to Applications 2023, San Francisco, CA, January 28-29, 2023. Ed.: A.V. Kabashin
Veranstaltung SPIE Photonics West LASE (SPIE LASE 2023), San Francisco, CA, USA, 28.01.2023 – 03.02.2023
Verlag Society of Photo-optical Instrumentation Engineers (SPIE)
Seiten Article no: 1241002
Serie Proceedings of SPIE ; 12410
Projektinformation Next-Gen-3DBat (BMBF, 03XP0198F)
Schlagwörter ultrafast laser ablation, laser structuring, laser modification, electrode, lithium-ion battery, 3D battery
Nachgewiesen in Scopus
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Globale Ziele für nachhaltige Entwicklung Ziel 7 – Bezahlbare und saubere Energie
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