DOI: 10.5281/zenodo.15536941
title: INR18650-LG-3500-MJ1 Cathode GITT+EIS Raw Data

description: Scope

This record contains the measurement results from a galvanostatic intermittent titration technique (GITT) test at 25°C of an INR18650-MJ1 lithium-ion battery cell manufactured by LG CHEM. The raw data is provided in both HDF5 and CSV formats.

Files

Data




Filename
Description
Format
Usage




18650-LG-3500-MJ1-cathode-GITT-EIS-Dc.csv
GITT data of an NMC cathode obtained during a discharging process
text/csv
Use for general analysis in spreadsheet tools or scripts.


18650-LG-3500-MJ1-cathode-GITT-EIS-Ch.csv
GITT data of an NMC cathode obtained during a charging process
text/csv
Use for general analysis in spreadsheet tools or scripts.


pandas_hdf5_to_csv.py
Python script for exporting data from HDF5.
text/x-python
Convert HDF5 to CSV using Python.


cathode-GITT-Dc.h5
HDF5 archive of GITT data of an NMC cathode obtained during a discharging process
application/x-hdf5
Use with Python (e.g., Pandas) to extract or process raw GITT data.


cathode-GITT-Ch.h5
HDF5 archive of GITT data of an NMC cathode obtained during a charging process
application/x-hdf5
Use with Python (e.g., Pandas) to extract or process raw GITT data.




RDF Metadata




Filename
Description
Format
Usage




ro-crate-metadata.json
RDF metadata describing the data table schema, test, and battery
application/json+ld
Semantic Web integration


ro-crate-preview.html
RDF metadata describing the data table schema, test, and battery
application/json+ld
Semantic Web integration




Related Resources




Relationship
Record
Description




isPartOf
INR18650-LG-3500-MJ1 Cathode Raw Data Collection
This collection contains records related to the characterization of the positive electrode (cathode) harvested from an INR18650-MJ1 Li-ion battery cell. The active material in the electrode is NMC. The measurement is obtained in three-electrode configuration with the working electrode NMC, counter electrode composite graphite/silicon oxide, and reference electrode lithium metal in a coin cell casing. The data is intended to be used to charactrize the lithium diffusion coefficient in the NMC material to support model-based analysis of MJ1 cells.


IsContinuedBy
INR18650-LG-3500-MJ1 Cathode GITT+EIS Data Preprocessing
This record contains workflows for packaging GITT measurements of an INR18650-MJ1 battery cell manufactured by LG CHEM at 25°C within Parquet files.


IsContinuedBy
INR18650-LG-3500-MJ1 Cathode GITT+EIS Structured Data
This record contains electrochemical impedance spectra (EIS) measured during galvanostatic intermittent titration technique (GITT) steps on the NMC cathode of a commercial LG CHEM INR18650-MJ1 lithium-ion cell. The measurements were conducted at 25°C and are provided in a structured Parquet format, suitable for data analysis workflows and model fitting.




Licensing

This dataset is licensed under CC-BY 4.0, allowing for sharing and adaptation with proper attribution.

Contact Information

For questions or further assistance, please contact Dennis Kopljar at dennis.kopljar@dlr.de.

References

This dataset is linked to the following publication: [DOI/Link to publication].

Notes

The .h5 files have been saved with the Python package Pandas and should only be opened with it. Use the .csv files if you are not using Python or the .parquet files that are in a record linked to this one.

Legend for the dataset column names:



"LINE": # of the step in the measurement device script

"COMM": type of the step (Charge/Discharge/...); intermittent EIS measurements happen during "Set-Temp", since the measurement device links with the climate chamber

"STATE": labels start (3) and end (2) of any step