Cyclic voltammetry. According to the article published by Instrument Information Network, the pulse test principle of lithium battery insulation is the electrical analysis technology of lithium-ion battery, which is cyclic voltammetry (CV). In this method, a linearly varying voltage (equal slope voltage) is applied to the electrode. When scanning, the scanning area can be controlled in the range of static potential above 3V, and most electrode reactions occur in this potential area, generally not exceeding 5 V.