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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Pfleging, Wilhelm
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Next-Generation Batteries through Advanced 3D Electrode and Material Concepts
- 2024Laser Ablation of Electrodes for Next Generation Batteries
- 2023Ultrafast Laser Patterning of Silicon/Graphite Composite Electrodes to Boost Battery Performance
- 2023Electrochemical Performance of Lithium-Ion Pouch Cells Containing Aqueous Processed and Laser Structured Thick Film NMC 622 and Graphite Electrodes
- 2023Laser structuring of high mass loaded and aqueous acid processed Li(Ni₀.₆Mn₀.₂Co₀.₂)O₂ cathodes for lithium-ion batteries
- 2023Laser materials processing in manufacturing of lithium-ion batteries
- 2022How lasers can push silicon-graphite anodes towards next-generation battery
- 2022Ultrafast laser ablation of aqueous processed thick-film Li(Ni$_{0.6}$Mn$_{0.2}$Co$_{0.2}$)$_{O2}$ cathodes with 3D architectures for lithium-ion batteries
- 20223D Printing of Silicon-Based Anodes for Lithium-Ion Batteries
- 2022Investigation of Manufacturing Strategies for Advanced Silicon/Graphite Composite Anodes for Lithium-Ion Cells
- 2022Multiobjective Optimization of Laser Polishing of Additively Manufactured Ti-6Al-4V Parts for Minimum Surface Roughness and Heat-Affected Zonecitations
- 2021Electro-Chemical Modelling of Laser Structured Electrodes
- 2021Laser Additive Manufacturing for the Realization of New Material Concepts
- 2021The Effect of Silicon Grade and Electrode Architecture on the Performance of Advanced Anodes for Next Generation Lithium-Ion Cellscitations
- 2020Effect of laser structured micro patterns on the polyvinyl butyral/oxide/steel interface stabilitycitations
- 2020Laser polishing of additively manufactured Ti-6Al-4V: Microstructure evolution and material propertiescitations
- 2020Effects of 3D electrode design on high-energy silicon-graphite anode materials
- 2020Ultrafast Laser Materials Processing of Electrodes for Next Generation Li-Ion Batteries (NextGen-3DBat)
- 2020Two-Step Laser Post-Processing for the Surface Functionalization of Additively Manufactured Ti-6Al-4V Partscitations
- 2020Lithium-Ion Battery—3D Micro-/Nano-Structuring, Modification and Characterizationcitations
- 2019Manufacturing and Characterization of Advanced High Energy Silicon/Graphite Electrodes
- 2019Experimental analysis of laser post-processing of additive manufactured metallic parts
- 2017Laser-Materials Processing for Energy Storage Applications
- 2014Laser ablation mechanism for modification of composite electrodes with improved electrolyte wetting behaviour
- 2007High speed fabrication of functional PMMA microfluidic devices by CO2-laser patterning and HPD-laser transmission welding
Places of action
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document
Ultrafast Laser Materials Processing of Electrodes for Next Generation Li-Ion Batteries (NextGen-3DBat)
Abstract
To contribute to a turnaround in energy policy, lithium(Li)-ion cells with significantly increased power and energy density are required. Therefore, high energy materials such as nickel-enriched lithium nickel manganese cobalt oxide (NMC 622) and silicon/graphite (Si/G) composite electrodes with a high areal capacity (>>4 mAh/cm2) and respective film thickness (>> 100 µm), and a 3D electrode structure for high rate capability will be developed. Batteries with NMC 622 show in comparison to those with NMC 111 a higher capacity, and a better capacity retention and cell lifetime in comparison to cells with NMC 811. The manufactured slurries are either NMP- or water-based. The usage of water-based instead of NMP-based systems will lead to a better environmental sustainability while making the recovery of the organic solvent redundant. To further increase the energy density on cell level, Si/G composite anodes are being used, as Si provides one order of magnitude higher theoretical capacity than graphite. To make this advantage practicable, the utilisation of Si-nanoparticles as well as the introduction of free-standing structures in the anode via laser structuring to compensate the volume changes of Si during alloying with Li are necessary. To match the increased capacity of the Si/G anodes, cathodes with a high film thickness with adapted high areal mass loading are being prepared for reaching a cell balancing of 1.2-1.3. To increase the active surface area of the electrodes, microstructures are generated with ultrashort pulsed laser radiation. These 3D structures accelerate the de-/intercalation of Li while cycling and improve the electrolyte wettability, which leads to a decrease in storage and formation time as well as an increased process reliability and an enhanced cell lifetime. To accelerate the laser structuring, a roll-to-roll process is implemented, the process is parallelised with the utilisation special designed optics, and the laser energy and fluence are being increased by using a new generation of industrial reliable laser sources.