Impedance test method and device for battery pole piece

The invention relates to the technical field of an impedance test method and an impedance test device, in particular to an impedance test method and an impedance test device for a battery pole piece. The impedance test method for the battery pole piece comprises the following steps of: testing by using an impedance tester, testing an inner resistance of the impedance tester and a total resistanceof an upper pressing head and a lower pressing head, and changing pressure on the pole piece frequently and measuring a resistance of the pole piece for many times. An impedance test device for the battery pole piece comprises a stander and a fixing mechanism, wherein the fixing mechanism comprises a pressurizing mechanism, the upper pressing head, the lower pressing head and a base plate; the upper pressing head comprises a pressing head and an insulation ring; a protrusion is formed at one end of the pressing head; the insulation ring matched with the protrusion is sleeved on the protrusion; a positioning slot matched with the upper pressing head is formed at one end of the lower pressing head; the base plate is fixed on the stander; a sliding slot is formed on the base plate; and the other end, matched with the sliding slot, of the lower pressing head is arranged in the sliding slot. The invention has the advantages of high test precision, high consistency of the test data, simple operation, high reliability and avoiding of interferences of human factors.