Aluminum-plastic film, method for testing punching pit depth of aluminum-plastic film and soft package lithium ion battery

The invention discloses an aluminum-plastic film, a method for testing the punching pit depth of the aluminum-plastic film and a soft package lithium ion battery, and the method comprises the steps: enabling a servo motor to be connected with a puncher pin, enabling the puncher pin to move downwards to a punching position for punching, and monitoring the feeding amount deviation of the puncher pin in real time through a displacement sensor; the method comprises the following steps: introducing laser to scan a pit punching surface and a non-pit punching surface of an aluminum plastic film subjected to pit punching, receiving angles corresponding to diffuse reflection laser peak light intensity by using a laser receiver, obtaining position coordinates of each surface through fitting calculation, further obtaining the pit depth, receiving pit depth data in real time by a PLC end, and transmitting the data to an MES end through an upper computer; online data is convenient to analyze and trace, and favorable suppo