Rate testing step for lithium-ion battery lithium iron phosphate cathode materia
Latest updated: May 16, 2024 Video recording version: 8.0.0.516, compatible with BTS 8.0 software.
Open the pre-set rate test step file.
First set aside for 1 hour to stabilize the internal area of the battery.
Since the cathode material was studied, the constant current charging work step was set up first.
After selecting the C-rate mode, input the theoretical specific capacity of the material and the mass of the active material, and then the current value of constant-current charging and discharging can be calculated automatically.
Theoretical specific capacity of lithium iron phosphate is 170 mAh/g, and the mass of input actives is 2mg.
Set the multiplication rate gradient as 0.1C, 0.2C, 0.5C, 1C, 2C, 5C, 10C, 20C, 1C.
Evaluate the performance of lithium iron phosphate batteries under different multiplication rates, study its stability under different current densities, and help analyze the characteristics of electrode materials.
Lithium iron phosphate cathode material generally undergoes redox reaction at higher voltage.
Therefore, the test voltage window is set at 2.0~4.2V, please refer to the literature and combine with your own experiments.
Cycling 10 turns at each magnification not only evaluates the reversibility and reproducibility of the electrochemical behavior of the material, but also saves time costs and resources.
Gradient of rate and number of cycles per rate can be set according to the requirement.
The above demonstration parameters are for reference only, please refer to your own experiments.
After setting the parameters of the work step, just click start.
