The invention relates to the technical field of battery
pole piece slitting and rolling, in particular to a
lithium ion battery
pole piece slitting and rolling all-in-one
machine which comprises a rolling
assembly, a slitting mechanism, an overall conveying mechanism, a channel switching mechanism, a switching driving mechanism, an auxiliary conveying mechanism, a winding switching mechanism and a damage prevention mechanism. The thickness
detector is used for controlling the
cutting telescopic rod to stretch and retract twice to
cut off battery pole segments with unqualified thicknesses, and the channel switching mechanism can be controlled to close qualified channels and open unqualified channels when the
cutting telescopic rod stretches and retracts for the first time; at the moment, the winding switching mechanism is in linkage with the auxiliary conveying mechanism to convey the unqualified battery pole pieces, the positions of a first rack and a second rack are replaced when a
cutting telescopic rod is subjected to second-time cutting retraction through linkage with a damage-preventing mechanism, the situation that the battery pole pieces are damaged when a channel switching plate is overturned is avoided, and the battery
pole piece slitting device is suitable for slitting the battery pole pieces of any length.