BATTERY MANUFACTURING APPARATUS AND METHOD THEREOF

A battery manufacturing device according to an embodiment of this document may include a memory configured to store at least one instruction, and at least one processor configured to execute the at least one instruction, in which the at least one processor is configured to, in a winding process of a battery, identify a movement distance that an electrode plate moves in a left direction or right direction of a direction in which the electrode plate advances before being wound, as a speed at which the electrode plate is wound is changed, determine a tension for pulling the electrode plate in a direction opposite to the direction in which the plate advances, based on the movement distance, and wind the electrode plate based on the tension.