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].