How to test the viscosity of lithium battery stirring slurry?

Lithium battery stirring slurry is a high-viscosity colloidal material used in the preparation of lithium battery positive and negative electrode materials, usually composed of active materials, binders, conductive agents and other components mixed. Its main function is to uniformly mix the components of the electrode material and fix them on the electrode collector to facilitate assembly into a lithium-ion battery.

The viscosity test of lithium battery stirring slurry can be measured using different types of viscometers such as rotary viscometer or drum viscometer.

Here are the steps to take a measurement with a Rotational Viscometer:

1. Prepare the sample: Take a certain amount of sample from the lithium battery stirring slurry and pour it into the test cup of the viscometer.

2. Adjust the viscometer: According to the test requirements, select the rotation speed and measurement range, and adjust the viscometer to the appropriate parameters.

3. Measure a sample: Dip the test head of the viscometer into the sample to start the test. The test time usually needs to be adjusted according to the characteristics of the sample and the test requirements.

4. Record test results: After the test is over, record the test results and perform data analysis and processing.

North and South Chao reminds you: Before testing, the viscometer needs to be preheated to ensure the accuracy of the test results. In addition, it is necessary to pay attention to avoid the generation of air bubbles during the test, so as not to affect the test results.