Scope
This record contains raw data from the GITT characterization with intermittent EIS measurements 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 open-circuit potential (OCP) and lithium diffusion coefficient in the composite material.
Note: the .h5 files have been saved with the Python package Pandas and should only be opened with it. Use the .csv files if you are not using Python or the .parquet files that are in a record linked to this one.
Legend for the dataset column names:
- "LINE": # of the step in the measurement device script
- "COMM": type of the step (Charge/Discharge/...); intermittent EIS measurements happen during "Set-Temp", since the measurement device links with the climate chamber
- "STATE": labels start (3) and end (2) of any step
Files
Raw Data
| Filename |
Description |
Format |
Usage |
| 18650-LG-3500-MJ1-anode-GITT-EIS-Dc.csv |
CSV file containing GITT data for the MJ1 anode during discharge with intermittent EIS measurements. |
CSV (text/x-comma-separated-values) |
Used for analyzing discharge behavior of the MJ1 anode. |
| 18650-LG-3500-MJ1-anode-GITT-EIS-Ch.csv |
CSV file containing GITT data for the MJ1 anode during charge with intermittent EIS measurements. |
CSV (text/x-comma-separated-values) |
Used for analyzing discharge behavior of the MJ1 anode. |
| anode-GITT-Dc.h5 |
HDF5 file containing GITT data for the MJ1 anode during discharge with intermittent EIS measurements. |
HDF5 (application/x-hdf5) |
Stores processed data for efficient querying and analysis. |
| anode-GITT-Ch.h5 |
HDF5 file containing GITT data for the MJ1 anode during charge with intermittent EIS measurements. |
HDF5 (application/x-hdf5) |
Stores processed data for efficient querying and analysis. |
Related Resources
| Relationship |
Record |
Description |
| isPartOf |
INR18650-LG-3500-MJ1 Anode Raw Data |
This collection contains records related to the characterization of 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 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 be used to charactrize the lithium diffusion coefficient in the composite graphite/silicon oxide material to support model-based analysis of MJ1 cells. |
| IsContinuedBy |
INR18650-LG-3500-MJ1 Anode GITT+EIS Data Preprocessing |
This record contains workflows for packaging GITT measurements obtained during discharging and charging processes within parquet files. The workflows are intended to process GITT 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. |
| IsContinuedBy |
INR18650-LG-3500-MJ1 Anode GITT+EIS Structured Data |
This record contains GITT measurements with intermittent 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 open-circuit potential (OCP) and lithium diffusion proprties of the graphite/silicon oxide active material. Note that the GITT signal floats during EIS measurements. |
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].
