NMR in Battery Anode Slurries with a V-Shaped Sensor

Area of Science:

• Materials Science and Engineering
• Analytical Chemistry
• Process Engineering

Background:

• Inline analytics are crucial for reducing industrial operating costs and production waste.
• Existing analytical techniques often require adaptation for cost-effective, robust process monitoring.
• Nuclear Magnetic Resonance (NMR) offers powerful analytical capabilities but needs to be tailored for industrial environments.

Purpose of the Study:

• To develop and evaluate a V-shaped low-field NMR sensor for inline industrial process monitoring.
• To apply the sensor for non-destructive quality control of anode slurries in battery production.
• To investigate the sensor's capability in determining chemical composition, detecting gas inclusions, and analyzing flow properties.

Main Methods:

• Development of a V-shaped low-field NMR sensor designed for inline, non-invasive material measurement.
• Application of the sensor to characterize anode slurries, focusing on chemical composition and defect detection.
• Investigation of in- and outflow effects of slurries using the NMR sensor to understand flow dynamics.

Main Results:

• The V-shaped NMR sensor successfully performed non-destructive and non-invasive measurements of anode slurries.
• The sensor enabled the determination of chemical composition and the detection of gas inclusions within the slurries.
• Initial investigations into slurry in- and outflow effects were conducted, laying groundwork for future flow field analysis.

Conclusions:

• The developed V-shaped NMR sensor is a viable tool for inline process monitoring in industrial settings.
• The sensor provides valuable data for quality control in battery anode slurry production.
• The technology shows potential for characterizing material properties and understanding flow dynamics in continuous processes.