Near-Infrared (NIR) Spectroscopy

Near-infrared spectroscopy (NIR) measures the overtone and combination bands of molecular vibrations in the 750-2500 nm region, providing rapid, non-destructive chemical analysis of organic compounds and moisture with minimal sample preparation. As a hard skill it requires building and validating chemometric calibration models (PLS, PCR) from reference data, understanding baseline and scatter corrections for diffuse-reflectance measurements, and maintaining model validity as instrument and sample conditions change. Battery researchers apply NIR for rapid quality checks on incoming polymer binder and separator materials, and to monitor moisture content in electrode coatings during drying-process development.

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