Battery life prediction model generation and prediction method and device, equipment and medium

The invention relates to a battery life prediction model generation method and device, a battery life prediction method and device, equipment and a medium, and belongs to the technical field of batteries, and the battery life prediction model generation method comprises the steps of extracting charging parameters of a battery, the charging parameters comprise the charging duration, the charging capacity cumulant, the charging energy cumulant, the charging capacity variance, the charging capacity average value, the energy variance and the energy average value when the battery is charged to a plurality of preset equal voltage intervals; respectively calculating a correlation value of each equal-voltage interval, and determining the equal-voltage interval with the maximum correlation value as an optimal voltage interval; establishing a capacity estimation model based on the BP neural network and the optimal interval; and establishing a battery life prediction model based on an LSTM algorithm and the capacity est