LiBforSecUse: Impedance Spectra from 18650 Battery Life Cycle Tests

The EMPIR project LiBforSecUse provides empirical measurement data from life cycle tests of commercial 18650 lithium-ion cells. It includes regular impedance spectroscopy and capacity measurements, establishing models to estimate the residual capacity of second-use battery cells. The data are intended to verify project models and support further investigations into battery health and reuse.

Use Cases

• Estimating residual battery capacity based on impedance spectroscopy data.
• Validating empirical measurement models for second-use lithium-ion cells.
• Analyzing battery degradation patterns from life cycle test data.
• Developing predictive models for battery state-of-health using electrochemical measurements.

Strengths

• Data originates from a structured EMPIR research project with a defined scientific aim.
• Includes detailed impedance spectroscopy, a key technique for non-destructive battery analysis.
• Focuses on commercial 18650 (graphite/NMC) cells, a common and relevant battery format.

Limitations

• Specific column names, row counts, and file sizes are not provided in the available metadata.
• The exact temporal coverage of the life cycle tests is not specified.
• Relies on a single source platform (paperswithcode) for metadata, limiting cross-verification.

Provenance

Source

Karlsruhe Institute of Technology (Author: Hoon Seng Chan) as part of the EMPIR project LiBforSecUse.

Collection Method

Data gathered from a series of life cycle tests on commercial 18650 cells, including regular impedance spectroscopy and capacity measurements.