Washing machine

A washing machine, comprising:

• a cabinet;
• a tub in the cabinet;
• a detergent supply part for supplying a detergent to the tub;
• and
• a detergent cartridge accommodating the detergent and configured to be drawn in or out the detergent supply part,
• wherein the detergent cartridge includes:
• a main body including a first space configured to accommodate air and a second space configured to accommodate a detergent,
• a partition plate horizontally movable inside the main body and partitioning the first space and the second space,
• a pair of electric lines extending from the first space to the second space along an inner surface of the main body and spaced apart from each other, and
• a connector on a side of the partition plate facing the first space and electrically connecting the pair of electric lines;
• and
• with the detergent cartridge drawn into the detergent supply part, the detergent accommodated in the second space is suppliable to the tub.

A method for controlling a washing machine including a tub, a detergent supply part for supplying a detergent to the tub, a detergent cartridge accommodating the detergent therein, configured to be drawn in or out the detergent supply part, and including a cartridge identification member storing information about the detergent accommodated in the detergent cartridge, and a cartridge identification device positioned to, with the detergent cartridge drawn into the detergent supply part, recognize the cartridge identification member, the method comprising:

• with the detergent cartridge drawn into the detergent supply part, recognizing the cartridge identification member through the cartridge identification device;
• obtaining the information about the detergent accommodated in the detergent cartridge stored in the cartridge identification member from the recognized cartridge identification member;
• and
• changing a use setting of the detergent cartridge based on the obtained information about the detergent accommodated in the detergent cartridge.