Published May 29, 2025 | Version 1.0.0
Dataset Open

INR18650-LG-3500-MJ1 Cathode GITT Overpotential

Authors/Creators

  • 1. Helmholtz Institute Ulm
  • 2. German Aerospace Center
  • 3. SINTEF Energy Research
  • 4. SINTEF Industry

Description

Scope

This record contains overpotential observed in GITT measurements during discharge and charge, pre-selected and packaged in parquet files for further analysis.The GITT measurements were obtained from positive electrode (cathode) harvested from an INR18650-MJ1 Li-ion battery cell manufactured by LG CHEM. The active material in the electrode is NMC. The measurment 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.

Files

Data

Filename Description Format Usage
18650-LG-3500-MJ1-Cathode GITT_dch ohne EIS(2321)_overpotential.parquet Parquet file containing overpotential data extracted from GITT discharge tests without EIS (ID: 2321). Parquet (application/octet-stream) Used for detailed analysis and modeling of GITT discharge overpotential behavior.
18650-LG-3500-MJ1-Cathode GITT_ch ohne EIS(2327)_overpotential.parquet Parquet file containing overpotential data extracted from GITT charge tests without EIS (ID: 2327). Parquet (application/octet-stream) Supports detailed analysis of charge overpotential data for battery performance studies.

Plots

Filename Description Format Usage
18650-LG-3500-MJ1-Cathode GITT_dch ohne EIS(2321)_extraction_with_positive_soc_ocv_alignment.pdf PDF document summarizing OCV alignment and positive SOC extraction for GITT discharge data (ID: 2321). PDF (application/pdf) Provides visualized summary of OCV alignment and data extraction processes.
18650-LG-3500-MJ1-Cathode GITT_ch ohne EIS(2327)_extraction_with_positive_soc_ocv_alignment.pdf PDF document summarizing OCV alignment and positive SOC extraction for GITT charge data (ID: 2327). PDF (application/pdf) Used for reporting on GITT charge data with SOC alignment processes.

RDF Metadata

Filename Description Format Usage
ro-crate-metadata.json A metadata file containing an extended version of the RO-Crate description application/json+ld Semantic web integration
ro-crate-preview.html The RO-Crate metadata file wrapped in html text/html Semantic web integration

Human Readable Tables

Working Electrode

Property Value
Comment Harvested from INR18650-MJ1
Active Material NCM-831205
Active Material Molecular Formula LiNi0.83Co0.12Mn0.05O2
Electrode Thickness / µm 73

Counter Electrode

Property Value
Comment Harvested from INR18650-MJ1
Active Material 1 Graphite
Active Material 1 Volume Fraction / 1 0.965
Active Material 2 Silicon Oxide
Active Material 2 Volume Fraction / 1 0.035
Active Material Composite Lithium Saturation Concentration / mol L-1 29.254
Electrode Thickness / µm 87

Reference Electrode

Property Value
Comment Lithium Metal
Active Material Lithium

Separator

Property Value
Type Whatman GF/A
Supplier El-cell
Thickness / µm 260
Porosity 0.93

Electrolyte

Property Value
Type 1M LiPF6 in EC:EMC:DMC 1:1:1
Salt LiPF6
Salt Concentration / mol L-1 1
Solvent 1 Ethylene Carbonate
Solvent 2 Ethyl Methyl Carbonate
Solvent 3 Dimethyl Carbonate

Cell

Property Value
Format Coin Cell
Dimensions R2032
Nominal Capacity / mAh 12

Table Schema

Column Name Unit Description
T [°C]  °C Temperature during measurement 
currents [A] A Current applied or measured  
indices - Index of the GITT pulse segment
timepoints [s] s Elapsed time in seconds 
voltages [V] V Voltage of the working electrode vs. reference electrode

Related Resources

Relationship Record Description
isPartOf INR18650-LG-3500-MJ1 Cathode Characterization Data All data obtained on the harvested cathode of the MJ1 cylindrical 18650 cell from LG CHEM
Continues INR18650-LG-3500-MJ1 Cathode GITT Structured Data This record contains GITT measurements during discharge and charge, pre-selected and packaged in parquet files for further analysis. 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 support the characterization of the open-circuit potential (OCP) and lithium diffusion proprties of the NMC active material.
Continues INR18650-LG-3500-MJ1 Cathode GITT OCV This record contains open-circuit voltage (OCV) data extracted from a GITT measurement on the harvested cathode of the MJ1 cylindrical 18650 cell from LG CHEM. The active material of the harvested electrode is NMC. The measurment 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 support the generation of parameterized OCV curves for use in battery cell modelling.
Continues INR18650-LG-3500-MJ1 Cathode GITT Overpotential Extraction This record contains workflows that extracts the cell overpotential from GITT measurements during discharging and charging.
IsContinuedBy INR18650-LG-3500-MJ1 Cathode GITT Featurization This record contains workflows to extract feactures from the GITT (without intermittent EIS) measurement on the harvested negative electrode (anode) of the INR18650-MJ1 Li-ion battery cell from LG CHEM. It simulteaneously sets up the simulator and EP-BOLFI optimizer inputs for later parameterization.

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].

Files

18650-LG-3500-MJ1-Cathode GITT_dch ohne EIS(2321)_extraction_with_positive_soc_ocv_alignment.pdf

Files (18.0 MB)

Additional details

Continues
Dataset: 10.5281/zenodo.15537295 (DOI)
Dataset: 10.5281/zenodo.15537435 (DOI)
Workflow: 10.5281/zenodo.15544516 (DOI)
Is continued by
Workflow: 10.5281/zenodo.15538198 (DOI)
Is part of
Dataset: 10.5281/zenodo.15537477 (DOI)
Is supplemented by
Software: 10.5281/zenodo.6967238 (DOI)

Funding

Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
Helmholtz Association of German Research Centres
KW-BASF-6
European Union
10110399
European Union
875527