10A/30A Large Current Disturbance EIS Test under Different SOC--A New Exploration of Large Capacity

 The key value of high-disturbance EIS lies in exciting the deep electrochemical process inside the cell through a larger amplitude signal, capturing the "impedance variation with disturbance amplitude" and exposing nonlinear characteristics that cannot be found by low-disturbance testing.  By simulating "signal strength under actual conditions", the test environment is highly matched with the application environment. The high disturbance EIS results can be directly used for: 

       1. Verify the impedance stability of the battery under high current impact; 

       2. Evaluate the dynamic response ability of electrode interface during fast charging; 

       3. Predict the performance attenuation trend of the battery under strong dynamic conditions.