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Related Experiment Video

Updated: Jun 23, 2025

$In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries$

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Published on: November 10, 2014

NMR in Battery Anode Slurries with a V-Shaped Sensor.

Eric Schmid¹, Louis Kontschak¹, Hermann Nirschl¹

¹Institute of Mechanical Process Engineering and Mechanics, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany.

Sensors (Basel, Switzerland)

|June 19, 2024

Summary

This summary is machine-generated.

A novel V-shaped Nuclear Magnetic Resonance (NMR) sensor enables inline, non-destructive monitoring of industrial processes. This technology is applied to battery anode slurry quality control, assessing composition and detecting defects.

Keywords:

NMR sensor battery slurries flow NMR inline process monitoring low-field NMR relaxation

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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.