NMC, NCA, and LFP Cells Degradation Under Randomized Current Profiles
Description
A set of three types of Li-ion cells (NMC, NCA, and LFP) were run through different operational profiles at room temperature. Charging was carried out in a constant current (CC) mode at cell's nominal charging current until the cell voltage reached the cut-off voltage, and then continued in a constant voltage (CV) mode until the charge current dropped to cut-off current. After charging, cells were discharged to cut-off voltage using a randomized sequence of discharging loads. Discharging periods last 1 minutes each, while a new discharging setpoint is selected. Additionally, every 200 cycles, the RW loads were updated. Every 20 of RW cycles, Periodic Hybrid Dynamic Pulse Power Characterization (HPPC) and Constant Current (CC) discharging profiles were executed as reference performance testing (RPT) to monitor transient dynamics and overall performance changes.
You will find a struct with the following fields.
Files:
> NCA
-OCV
-NCA_CELL_1
-NCA_CELL_2
-NCA_CELL_3
-NCA_CELL_4
> NMC
-OCV
-NMC_CELL_1
-NMC_CELL_2
> LFP
-OCV
-LFP_CELL_1
-LFP_CELL_2
> Ambient Temp
> 1. **Cycle** (number of the current cycle)
> 2. **Time** (date and time at which the current cycle was started in dd-Mon-yyyy HH:MM:SS format)
> 3. **Voltage** (vector of sample voltage in units of Volts)
> 4. **Current** (vector of current in units of Amps)
> 5. **Temperature** (vector of sample temperature in units of degrees C)
> 6. **Comment** (Type of the current cycle )
Show moreYear of publication
2024
Type of data
Authors
Teemu Toivola - Creator, Curator, Contributor
Victor Garita Vega - Curator, Contributor
Project
Other information
Fields of science
Language
Open access
Open