The step setting for the laboratory preparation of aqueous Zn-ion coin batteries with rate performance

The step setting for the laboratory preparation of aqueous Zn-ion coin batteries with rate performance

• According to the literature, the voltage range is 0.2 V~1.8 V. The specific charge/discharge voltage range is recommended to be determined by LSV or CV curves. 

• We will set the current density gradients to 0.1 A/g, 0.2 A/g, 0.5 A/g, 1 A/g, 3 A/g, and 0.1 A/g. Assuming an active material mass of 1 mg, the current gradients are 0.1 mA, 0.2 mA, 0.5 mA, 1.0 mA, 3 mA, and 0.1mA.

• Open the BTS software, right-click on the channel where the battery is being held, and click “Single start.” This will open the step settings interface.

• The rate test step setting can be seen as multiple sets of GCD test, and we will follow the method of constant current test step settings.

• Before the test begins, the battery needs to be left to soak the electrodes for a set period of time, which is set symbolically to 1 min in this case.

• Select the constant current charge and constant current discharge steps, enter a current of 0.1 mA, set the charge cut-off voltage to 1.8 V and the discharge cut-off voltage to 0.2bV, and then set the starting step of the cycle, and the cycle count to 10.

• Follow the same method to set the cycle steps for different currents. It should be noted that the starting step of each current is different.

• In others boxes, you can set the upper and lower voltage protection limits, which will not be demonstrated here.

•  In the main channel on the left, set the time record settings to 3 seconds, enter the mass of active material below, save the step template, and then click "Start" to start the test.

• The above working step parameters are set up for reference only, specifically, please set them according to the actual experimental conditions. Thank you for watching.