Electric vehicle power battery detection method and system and storage medium

The invention relates to the technical field of electric vehicles, and discloses an electric vehicle power battery detection method and system and a storage medium, the system comprises a processor module, and a data acquisition module, a power selection module, a charging mode module, a transient current module, a communication module and a display module which are respectively connected with the processor module; the output current of the charging pile is rapidly changed through pulse current to generate transient current, meanwhile, BMS message data of the power battery are obtained, calculation and analysis are conducted through an electrochemical model algorithm, and finally accurate evaluation of the health state of the power battery is achieved. The method has the beneficial effects of high detection efficiency, accurate evaluation result of the health state of the power battery and improvement of the use safety of the electric vehicle. 本发明涉及电动汽车技术领域，公开了一种电动汽车动力电池检测方法、系统及存储介质，包括处理器模块，以及分别与处理器模块连接的数据获取模