Cycle testing step for research on sodium ion battery MoS2-based anode material
Latest updated: May 15, 2024 Video recording version: 8.0.0.516, compatible with BTS 8.0 software.
Turn on the pre-set cycle test work step file.
First set aside for 3 hour to allow the battery to stabilize internally.
Since the study was on anode materials, the battery was first discharged.
Setting the constant current discharger step.
After selecting the multiplier mode, enter a nominal specific capacity of 670 mAh/g and an activator mass of 2 mg.
Set the activation rate to 0.1C.
It is also possible to input current directly without selecting the multiplication mode
Small current activation helps to adjust the internal structure of the battery, including the uniform distribution of active substances and the stability of the solid-liquid interface.
It also reduces the polarization of the battery during cycling and improves the cycle stability and consistency of the battery.
According to the literature, the embedded sodium potential of MoS2 is mainly in the range of 0.5~1.0V.
Therefore, a voltage window of 0.1~3.0 V was chosen to cover the embedded sodium potential range of MoS2.
Ensures that the charging and discharging process takes place within the appropriate potential range.
It can also effectively avoid overcharging and overdischarging of battery materials.
Over-charging and over-discharging can lead to degradation of battery performance and safety, and even damage the structural stability of battery materials.
So here the cutoff discharge voltage is set to 0.1V and the charging cutoff voltage is set to 3.0V.
Cycle start step is 2, cycle number is 10.
Set the cycle rate to 2C and the number of cycles to 5000.
Because of the long cycle life of the material under study, a higher number of cycles is set.
You can set the cycle rate and the number of cycles according to your own needs.
The above demo parameters are for reference only, please refer to your own experiments.
After setting the parameters of the work step, just click start.
