DOI: 10.5281/zenodo.15544457
title: INR18650-LG-3500-MJ1 Cathode GITT Overpotential

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 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].