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Femtosecond Laser Processing of Thick Film Cathodes and Its Impact on Lithium-Ion Diffusion Kinetics

Pfleging, Wilhelm; Gotcu, Petronela

Abstract:
Quantitative experiments of lithiation/delithiation rates were considered for a better understanding of electrochemical intercalation/deintercalation processes in laser structured thick film cathodes. Besides galvanostatic cycling for evaluation of specific discharge capacities, a suitable quantitative approach for determining the rate of Li-ion insertion in the active material and the rate of Li-ion transport in the electrolyte is expressed by chemical diffusion coefficient values. For this purpose, the galvanostatic intermittent titration technique has been involved. It could be shown that laser structured electrodes provide an enhanced chemical diffusion coefficient and an improved capacity retention at high charging and discharging rates

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Verlagsausgabe §
DOI: 10.5445/IR/1000099206
Veröffentlicht am 22.10.2019
Originalveröffentlichung
DOI: 10.3390/app9173588
Scopus
Zitationen: 6
Web of Science
Zitationen: 4
Dimensions
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2076-3417
KITopen-ID: 1000099206
HGF-Programm 37.01.02 (POF III, LK 01) Components and Cells
Erschienen in Applied Sciences
Verlag MDPI
Band 9
Heft 17
Seiten Article no: 3588
Projektinformation DFG, DFG EIN, PF 392/9-1
Vorab online veröffentlicht am 02.09.2019
Schlagwörter 3D battery; laser ablation; diffusion coefficient; lithium-ion batteries; LiCoO2; KNMF 2018-019-021333 LMP;
Nachgewiesen in Web of Science
Dimensions
Scopus
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