Published May 27, 2025 | Version 1.0.0
Dataset Open

INR18650-LG-3500-MJ1 Anode 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 negative electrode (anode) harvested from an INR18650-MJ1 Li-ion battery cell manufactured by LG CHEM. The active material in the electrode is composite graphite/silicon oxide. The measurment is obtained in three-electrode configuration with the working electrode composite graphite/silicon oxide, counter electrode NMC, and reference electrode lithium metal in a coin cell casing.

Files

Data

Filename Description Format Usage
18650-LG-3500-MJ1-Anode GITT_dch ohne EIS(2320)_overpotential.parquet Parquet file containing overpotential data extracted from GITT discharge tests without EIS (ID: 2320). Parquet (application/octet-stream) Used for detailed analysis and modeling of GITT discharge overpotential behavior.
18650-LG-3500-MJ1-Anode GITT_ch ohne EIS(2340)_overpotential.parquet Parquet file containing overpotential data extracted from GITT charge tests without EIS (ID: 2340). Parquet (application/octet-stream) Supports detailed analysis of charge overpotential data for battery performance studies.

Plots

Filename Description Format Usage
18650-LG-3500-MJ1-Anode GITT_dch ohne EIS(2320)_extraction_with_negative_soc_ocv_alignment.pdf PDF document summarizing OCV alignment and negative SOC extraction for GITT discharge data (ID: 2320). PDF (application/pdf) Provides visualized summary of OCV alignment and data extraction processes.
18650-LG-3500-MJ1-Anode GITT_ch ohne EIS(2340)_extraction_with_negative_soc_ocv_alignment.pdf PDF document summarizing OCV alignment and negative SOC extraction for GITT charge data (ID: 2340). PDF (application/pdf) Used for reporting on GITT charge data with SOC alignment processes.

Related Resources

Relationship Record Description
isPartOf INR18650-LG-3500-MJ1 Anode This collection points to all the intermediate steps including and between the data obtained on the harvested anode of the MJ1 cylindrical 18650 cell from LG CHEM and its analysis.
Continues INR18650-LG-3500-MJ1 Anode 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 composite graphite/silicon oxide, counter electrode NMC, 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 graphite/silicon oxide active material.

 
Continues INR18650-LG-3500-MJ1 Anode GITT OCV This record contains open-circuit voltage (OCV) data extracted from a GITT measurement on the harvested anode of the MJ1 cylindrical 18650 cell from LG CHEM. The active material of the harvested electrode is composite graphite/silicon oxide. The measurment is obtained in three-electrode configuration with the working electrode composite graphite/silicon oxide, counter electrode NMC, 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 Anode GITT Overpotential Extraction This record contains workflows that extracts the cell overpotential from GITT measurements during discharging and charging.
IsContinuedBy 18650-LG-3500-MJ1 Anode 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.

Metadata

Machine Readable RDF

Filename Description Format Usage

Human Readable Tables

Working 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

Counter Electrode

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

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

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-Anode GITT_dch ohne EIS(2320)_extraction_with_negative_soc_ocv_alignment.pdf

Files (19.5 MB)

Additional details

Continues
Dataset: 10.5281/zenodo.15520717 (DOI)
Dataset: 10.5281/zenodo.15527574 (DOI)
Workflow: 10.5281/zenodo.15527758 (DOI)
Is continued by
Workflow: 10.5281/zenodo.15528102 (DOI)
Is part of
Dataset: 10.5281/zenodo.15518714 (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