Paper 13351-9
Paper 13351-9
Optimizing and upscaling of USP laser structuring for 3D lithium-ion battery electrodes for fast-charging and reduced lithium plating (Invited Paper)
27 January 2025 • 1:25 PM - 1:55 PM PST | Moscone South, Room 214 (Level 2)
Abstract
Various concepts for upscaling the laser structuring of electrodes for lithium-ion batteries are studied, taking into account different active materials such as lithium-iron-phosphate and graphite. High power (>400 W) GHz-burst ablation of electrodes is evaluated in terms of processing quality and efficiency and compared to the use of ultrashort pulsed laser radiation with repetition rates in the MHz regime without burst ablation. In addition, fast-charging capability of full cells with structured electrodes and with unstructured reference electrodes of similar loading were examined in a rate capability test, differential voltage analysis of the voltage relaxation and post-mortem studies to examine the fast-charging capability and lithium plating behavior.
Presenter
Karlsruher Institut für Technologie (Germany)
Yannic Sterzl began his studies in Materials Science and Engineering at the Karlsruhe Institute of Technology in 2014 and graduated with a Master's degree in 2021. He is currently a doctoral student in the Laser Materials Processing group at the Institute for Applied Materials – Applied Materials Physics (IAM-AWP) at the Karlsruhe Institute of Technology (KIT), working on the modification of electrode architectures by laser ablation and the fast-charging capability of lithium-ion batteries with improved electrode architectures.