Lithium ion battery capacity prediction method and device and electronic equipment

The invention discloses a lithium ion battery capacity prediction method and device and electronic equipment, and the method comprises the steps: carrying out the three-pulse test of a lithium ion battery, and correspondingly determining a characteristic parameter set of the lithium ion battery; an initial battery capacity prediction model is established, and the initial battery capacity prediction model comprises a Gaussian process regression algorithm model; and determining the battery capacity value of the lithium ion battery to be detected based on the battery capacity prediction model. According to the method, the characteristic parameter set capable of representing the current state of the lithium ion battery is obtained by performing the three-pulse test on the lithium ion battery, and the lithium ion battery does not need to be charged to a full state in the process of obtaining the characteristic parameter set, so that the time required for obtaining the characteristic parameter set is greatly shorte