Scope This record contains EIS 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 exchange-current density and lithium diffusion proprties of the graphite/silicon oxide active material. Files Data Filename Description Format Usage 18650_LG_3500_MJ1_EIS_anode_discharge.parquet Parquet file containing EIS data during charge for the MJ1 anode. Parquet (application/octet-stream) Stores structured EIS data during charge for efficient processing. 18650_LG_3500_MJ1_EIS_anode_charge.parquet Parquet file containing EIS during discharge for the MJ1 anode. Parquet (application/octet-stream) Supports structured and efficient processing of discharge data. Workflows Filename Description Format Usage 18650_LG_3500_MJ1_EIS_anode_discharge_plot.flow Workflow file for generating plots of EIS data during discharge. Flow file (application/x-flow+json) Automates visualization of EIS discharge data. 18650_LG_3500_MJ1_EIS_anode_charge_plot.flow Workflow file for generating plots of GITT charge data without EIS (ID: 2340). Flow file (application/x-flow+json) Automates visualization of EIS charge data. Plots Filename Description Format Usage 18650_LG_3500_MJ1_EIS_anode_discharge_nyquist_plot.png PNG image showing the Nyquist plot of EIS data during discharge data for the MJ1 anode. PNG image (image/png) Used for visualizing EIS discharge behavior. 18650_LG_3500_MJ1_EIS_anode_charge_nyquist_plot.png PNG image showing the Nyquist plot of EIS data during charge for the MJ1 anode. PNG image (image/png) Visual representation of EIS charge behavior. 18650_LG_3500_MJ1_EIS_anode_discharge_bode_phase_plot.png PNG image showing the Bode phase plot of EIS data during discharge data for the MJ1 anode. PNG image (image/png) Used for visualizing EIS discharge behavior. 18650_LG_3500_MJ1_EIS_anode_charge_bode_phase_plot.png PNG image showing the Bode phase plot of EIS data during charge for the MJ1 anode. PNG image (image/png) Visual representation of EIS charge behavior. 18650_LG_3500_MJ1_EIS_anode_discharge_bode_impedance_plot.png PNG image showing the Bode real-imaginary plot of EIS data during discharge data for the MJ1 anode. PNG image (image/png) Used for visualizing EIS discharge behavior. 18650_LG_3500_MJ1_EIS_anode_charge_bode_impedance_plot.png PNG image showing the Bode real-imaginary plot of EIS data during charge for the MJ1 anode. PNG image (image/png) Visual representation of EIS charge behavior. Related Resources Relationship Record Description isPartOf INR18650-LG-3500-MJ1 Anode Structured Data This collection contains records with structured data files representing GITT measurements on the negative electrode (anode) harvested from an INR18650-MJ1 Li-ion battery cell. 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. The records include raw data obtained from GITT and EIS measurements. The data is intended to be used to charactrize the open-circuit potential and lithium diffusion coefficient in the composite graphite/silicon oxide material to support model-based analysis of MJ1 cells. Continues INR18650-LG-3500-MJ1 Anode EIS Raw Data This record contains raw data from the EIS characterization of a negative electrode (anode) harvested from an INR18650-MJ1 Li-ion battery cell. The active material in the electrode is composite graphite/silicon oxide. 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 parameterization of exchange-current density and lithium diffusion coefficient in the composite material. Continues INR18650-LG-3500-MJ1 Anode EIS Data Preprocessing This record contains workflows for packaging EIS measurements obtained during discharging and charging processes within parquet files. The workflows are intended to process EIS data coming from 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 resulting data can then be used for open-circuit potential (OCP) extraction. Metadata Machine Readable RDF Filename Description Format Usage metadata.jsonld JSON-LD description of the table structure in the Parquet files. JSON-LD (application/ld+json) Used for automatic processing of the data. 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].