Homogeneity measurements of Li-Ion battery cathodes using laser-induced breakdown spectroscopy
Abstract: We study the capability of nanosecond laser-induced breakdown spectroscopy (ns-LIBS) for depth-resolved concentration measurements of Li-Ion battery cathodes. With our system, which is optimized for quality control applications in the production line, we pursue the goal to unveil manufacturing faults and irregularities during the production process of cathodes as early as possible. Femtosecond laser-induced breakdown spectroscopy (fs-LIBS) is widely considered to be better suited for depth-resolved element analysis. Nevertheless, the small size and intensity of the plasma plume, non-thermal energy distribution in the plasma and high investment costs of fs-LIBS make ns-LIBS more attractive for inline application in the industrial surrounding. The system, presented here for the first time, is able to record quasi-depth-resolved relative concentration profiles for carbon, nickel, manganese, cobalt, lithium and aluminum which are the typical elements used in the binder/conductive additive, the active cathode material and the current collector. LIBS often causes high variations in signal intensity from pulse to pulse, so concentration determination is, in general, conducted on the average of many pulses. We show that the spot-to-spot variations we measure are governed by the microstructure of the cathode foil and are not an expression of the limited precision of the LIBS setup
- Location
-
Deutsche Nationalbibliothek Frankfurt am Main
- Extent
-
Online-Ressource
- Language
-
Englisch
- Notes
-
Sensors. - 22, 22 (2022) , 8816, ISSN: 1424-8220
- Event
-
Veröffentlichung
- (where)
-
Freiburg
- (who)
-
Universität
- (when)
-
2022
- Creator
- Contributor
- DOI
-
10.3390/s22228816
- URN
-
urn:nbn:de:bsz:25-freidok-2314141
- Rights
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
-
15.08.2025, 7:28 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Kappeler, Moritz
- Basler, Carl
- Brandenburg, Albrecht
- Carl, Daniel
- Wöllenstein, Jürgen
- Albert-Ludwigs-Universität Freiburg. Lehrstuhl für Gassensoren
- Universität
Time of origin
- 2022
Other Objects (12)
Real-time active-gas imaging of small gas leaks
Organic membranes for selectivity enhancement of metal oxide gas sensors
Inline and offline characterization of epitaxial wafers for industrial application
Makroporöses Silizium als Basis für nanofunktionalisierte chemische und optische Sensorik
Humidity impact on thermal conductivity sensors
Investigation of gasochromic rhodium complexes towards their reactivity to CO and integration into an optical gas sensor for fire gas detection
In-situ biogas sensing system for enabling spatially resolved online determination of the gas composition of the fermenter
Resonant photoacoustic cells for laser-based methane detection
Miniaturized two-chamber photoacoustic CO<sub>2</sub> sensor with a wafer-bonded MEMS (micro-electro-mechanical systems) detector
Active gas camera mass flow quantification (qOGI): Application in a biogas plant and comparison to state-of-the-art gas cams
Differential thermal analysis techniques as a tool for preliminary examination of catalyst for combustion
Layer by layer deposition of colloidal SnO2 nano particles
Real-time active-gas imaging of small gas leaks
Organic membranes for selectivity enhancement of metal oxide gas sensors
Inline and offline characterization of epitaxial wafers for industrial application
Makroporöses Silizium als Basis für nanofunktionalisierte chemische und optische Sensorik
Humidity impact on thermal conductivity sensors
Investigation of gasochromic rhodium complexes towards their reactivity to CO and integration into an optical gas sensor for fire gas detection
In-situ biogas sensing system for enabling spatially resolved online determination of the gas composition of the fermenter
Resonant photoacoustic cells for laser-based methane detection
Miniaturized two-chamber photoacoustic CO<sub>2</sub> sensor with a wafer-bonded MEMS (micro-electro-mechanical systems) detector
Active gas camera mass flow quantification (qOGI): Application in a biogas plant and comparison to state-of-the-art gas cams
Differential thermal analysis techniques as a tool for preliminary examination of catalyst for combustion
Layer by layer deposition of colloidal SnO2 nano particles
Real-time active-gas imaging of small gas leaks
Organic membranes for selectivity enhancement of metal oxide gas sensors
Inline and offline characterization of epitaxial wafers for industrial application
Makroporöses Silizium als Basis für nanofunktionalisierte chemische und optische Sensorik
Humidity impact on thermal conductivity sensors
Investigation of gasochromic rhodium complexes towards their reactivity to CO and integration into an optical gas sensor for fire gas detection
In-situ biogas sensing system for enabling spatially resolved online determination of the gas composition of the fermenter
Resonant photoacoustic cells for laser-based methane detection
Miniaturized two-chamber photoacoustic CO<sub>2</sub> sensor with a wafer-bonded MEMS (micro-electro-mechanical systems) detector
Active gas camera mass flow quantification (qOGI): Application in a biogas plant and comparison to state-of-the-art gas cams
Differential thermal analysis techniques as a tool for preliminary examination of catalyst for combustion