Process temperature measurement during nanosecond pulse laser micromachining of Li-Ion battery electrodes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F22%3A43967896" target="_blank" >RIV/49777513:23640/22:43967896 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.procir.2022.08.133" target="_blank" >https://doi.org/10.1016/j.procir.2022.08.133</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.procir.2022.08.133" target="_blank" >10.1016/j.procir.2022.08.133</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Process temperature measurement during nanosecond pulse laser micromachining of Li-Ion battery electrodes

Popis výsledku v původním jazyce

Surface functionalization as well as the microstructure modification of electrodes by laser material processing hasbecome increasingly important in recent years. Short and ultra-short pulsed lasers, which enable high-precisionprocessing, are used for this purpose. However, the process mechanisms, such as the surface temperatures that emerge during the process are not fully understood yet. New infrared high-speed detectors and their application allow to close this gap. In the present study, the infrared emissions of the selective ablation process of Li-ion battery electrodes areinvestigated experimentally. The electrode consists of graphite active material embedded in a carbon/binder domain. Due to the compaction of high-energy electrodes, pore clogging occurs, which hinders its fast-charging capability and the electrolyte wettability. The selective ablation of the surface binder phase significantly improves these two properties. The investigation of pure graphite material results in lower heat accumulation values but comparable peak values in comparison to the compacted electrode.

Název v anglickém jazyce

Process temperature measurement during nanosecond pulse laser micromachining of Li-Ion battery electrodes

Popis výsledku anglicky

Surface functionalization as well as the microstructure modification of electrodes by laser material processing hasbecome increasingly important in recent years. Short and ultra-short pulsed lasers, which enable high-precisionprocessing, are used for this purpose. However, the process mechanisms, such as the surface temperatures that emerge during the process are not fully understood yet. New infrared high-speed detectors and their application allow to close this gap. In the present study, the infrared emissions of the selective ablation process of Li-ion battery electrodes areinvestigated experimentally. The electrode consists of graphite active material embedded in a carbon/binder domain. Due to the compaction of high-energy electrodes, pore clogging occurs, which hinders its fast-charging capability and the electrolyte wettability. The selective ablation of the surface binder phase significantly improves these two properties. The investigation of pure graphite material results in lower heat accumulation values but comparable peak values in comparison to the compacted electrode.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Procedia CIRP

ISBN

—

ISSN

2212-8271

e-ISSN

—

Počet stran výsledku

4

Strana od-do

806-809

Název nakladatele

ELSEVIER

Místo vydání

Fürth

Místo konání akce

Fürth

Datum konání akce

4. 9. 2022

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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