Power battery aging characteristic factor extraction method and device, equipment and medium

The embodiment of the invention discloses a power battery aging characteristic factor extraction method, device and equipment and a medium, which are applied to the field of battery detection, and the method comprises the following steps: obtaining a vehicle detail data set of an electric vehicle; screening out N groups of vehicle detail data grouped according to vehicle types from the vehicle detail data set, wherein N is an integer greater than 1; generating an initial sample set according to the N groups of vehicle detail data, wherein the initial sample set comprises N groups of initial samples grouped according to vehicle types; and screening out aging characteristic factors influencing the health degree of the battery from the N groups of initial samples through a characteristic screening model, wherein the characteristic screening model has the capability of recording the characteristic use condition in the training process. According to the method, the extracted aging characteristic factor of the powe