Scope This record contains an open-circuit voltage (OCV) model fitted to OCV curves from GITT measurements during discharging and charging. 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)_extraction_with_negative_soc.json JSON file with extracted GITT discharge data including negative SOC adjustments (ID: 2320). JSON (application/json) Used for refined analysis of discharge data with SOC adjustments. 18650-LG-3500-MJ1-Anode GITT_ch ohne EIS(2340)_extraction_with_negative_soc.json JSON file with GITT charge data including negative SOC adjustments (ID: 2340). JSON (application/json) Used for detailed GITT charge data analysis with SOC adjustments. 18650_LG_3500_MJ1_EIS_anode_charge_soc_alignment.json JSON file containing SOC alignment data for EIS measurements on the MJ1 anode. JSON (application/json) Used for aligning SOC data during EIS analysis. Plots Filename Description Format Usage 18650-LG-3500-MJ1-Anode GITT_dch ohne EIS(2320)_extraction_fit_plot.pdf PDF containing plots of the OCV fitting results from GITT discharge data (ID: 2320). PDF (application/pdf) Visual representation of OCV fitting results. 18650-LG-3500-MJ1-Anode GITT_ch ohne EIS(2340)_extraction_fit_plot.pdf PDF containing plots of the OCV fitting results from GITT charge data (ID: 2340). PDF (application/pdf) Provides a visual summary of OCV fitting results. Logs Filename Description Format Usage 18650-LG-3500-MJ1-Anode GITT_dch ohne EIS(2320)_extraction_fit_log.json JSON file containing log details of the OCV fitting process for GITT discharge data (ID: 2320). JSON (application/json) Used to trace and validate the fitting process. 18650-LG-3500-MJ1-Anode GITT_ch ohne EIS(2340)_extraction_fit_log.json JSON file containing logs from OCV fitting on GITT charge data (ID: 2340). JSON (application/json) Supports validation and traceability of OCV fitting processes. Scripts Filename Description Format Usage 18650_LG_3500_MJ1_EIS_anode_charge_soc_alignment.py Python script to compute SOC alignment for EIS measurements on the MJ1 anode. Python script (text/x-python) Automates SOC alignment during data preprocessing. 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 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 OCV Modelling This record contains workflows that fit an OCV model to OCV curves from GITT measurements during discharging and charging. IsContinuedBy 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. IsContinuedBy 18650-LG-3500-MJ1 Anode GITT Features This record contains features observed in the GITT (without intermittent EIS) measurement on the harvested negative electrode (anode) of the INR18650-MJ1 cylindrical 18650 cell from LG CHEM. It also serves as input for EP-BOLFI parameterization. IsContinuedBy INR18650-LG-3500-MJ1 Lithium-Ion Battery Cell Complete Continuum Simulation Parameters This record contains a complete and PyBaMM-compatible parameter set for the INR18650-LG-3500-MJ1 cell and incomplete versions of it that were used in an exempular GITT characterization workflow. Most parameters are repackaged laboratory measurement results and SOC alignment checks with a GITT (without intermittent EIS) measurement on the harvested electrodes. Metadata Machine Readable RDF Filename Description Format Usage Human Readable Tables Working Electrode Property Value Type 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 Type Harvested from INR18650-MJ1 Active Material NCM-831205 Active Material Molecular Formula LiNi0.83Co0.12Mn0.05O2 Electrode Thickness / µm 73 Reference Electrode Property Value Type Lithium Metal Active Material Lithium Separator Property Value Type Whatman GF/A Manufacturer 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].