| People | Locations | Statistics |
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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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De Silva, Anjali K. M.
Glasgow Caledonian University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024Flow curve approximation of high-strength aluminium alloys in heat-assisted forming processes
- 2023Micro embossing of graphite-based anodes for lithium-ion batteries to improve cell performancecitations
- 2022Comprehensive study on the influence of different pretreatment methods and structural adhesives on the shear strength of hybrid CFRP/aluminum jointscitations
- 2022Adhesively bonded CFRP/Al joints: influence of the surface pretreatment on corrosion during salt spray testcitations
- 2022Laser surface treatment of carbon fiber reinforced polymer using near-infrared laser wavelength with variated process parameterscitations
- 2022Influence of laser polishing on the material properties of aluminium L-PBF componentscitations
- 2022Individual process development of single and multi-material laser melting in novel modular laser powder bed fusion systemcitations
- 2021Laser polishing of Laser Powder Bed Fusion AlSi10Mg parts—influence of initial surface roughness on achievable surface qualitycitations
- 2021Prozessparameter-Abhängigkeiten im kontinuierlichen und gepulsten Laserbetriebsmodus beim Oberflächenpolieren von additiv gefertigten Aluminiumbauteilen (AlSi10Mg)citations
- 2020Laser-based surface treatment of CFRP and aluminum for adhesively bonded hybrid jointscitations
- 2017Material removal simulation for steel mould polishingcitations
- 2016Simulation of material removal in mould polishing for polymer optic replication
- 2014Synthesis, fabrication and mechanical characterization of reinforced epoxy and polypropylene composites for wind turbine bladescitations
- 2013The effect of ply waviness for the fatigue life of composite wind turbine bladescitations
- 2013Precision mould manufacturing for polymer opticscitations
- 2012Review of inspection and quality control techniques for composite wind turbine bladescitations
- 2007Part strength analysis of Shell Assisted Layer Manufacturing (SALM)
- 2006Process energy analysis for aluminium alloy and stainless steel in laser-assisted jet electrochemical machiningcitations
- 2005Enhancing the formability of aluminium components via temperature controlled hydroformingcitations
- 2004Modelling and experimental investigation of laser assisted jet electrochemical machiningcitations
- 2001Electroforming process and application to micro/macro manufacturingcitations
Places of action
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article
Micro embossing of graphite-based anodes for lithium-ion batteries to improve cell performance
Abstract
<p>Patterning of lithium-ion battery anodes is widely accepted as a method to overcome the lack of fast-charging capability of high-energy electrodes. Structuring is mostly performed by ablative laser processes, whereby technological aspects such as loss of active material and scalability are still an obstacle to industrial implementation. In this paper, micro embossing is proposed as a novel material-preserving approach for graphite-based anodes to improve their performance. A metal stamp with well-defined laser-structured micro pins was developed first. Subsequently, a lab scale process was developed to imprint a defined perforation pattern on calendered graphite anodes. The electrochemical performance is compared to reference electrodes prior to any post-treatment. By micro embossing, hole geometries could be achieved compared to laser perforation known from the literature. Microscopy and tomography investigations of the embossed hole surface wall show lower porosity as well as alignment of graphite particles. Electrochemical impedance spectroscopy of symmetrical anode cells indicates a reduction in the ionic pore resistance of the embossed anodes. Moreover, fast-charging tests with full-cells revealed reduced cell overpotentials compared to pristine anodes. A cell test over 400 cycles showed improved retention of capacity of the embossed anodes compared to reference anodes. Half-cell capacity tests confirmed that there is practically no loss of active material due to micro embossing. Regarding the layer adhesion, no disadvantage could be found either. Moreover, this process has the potential to be integrated comparatively easily into electrode production, if it can be combined with the calendering process, thus, enhancing its industrial applicability.</p>