Abstract: A cathode active material for a lithium secondary battery includes a lithium metal oxide particle and a thio-based compound formed on at least portion of a surface of the lithium metal oxide particle. The thio-based compound has a double bond that contains a sulfur atom. Chemical stability of the lithium metal oxide particle may be improved and surface residues may be reduced by the thio-based compound.

Abstract: A refrigerator may prevent an internal door from being opened together by an inertial force when an external door is opened, and may also prevent the external door from being opened together by an inertial force when the internal door is opened. The refrigerator includes a main body, a storage chamber provided in the main body so that a front surface thereof is opened, an internal door rotatably provided at a front surface of the main body so as to open and close the storage chamber and having an opening part in which a plurality of door guards are provided, an external door rotatably provided at a front surface of the internal door so as to open and close the opening part, and an internal door opening prevention device allowing or preventing opening of the internal door according to whether the external door is opened or closed.

Abstract: A refrigerator may prevent an internal door from being opened together by an inertial force when an external door is opened, and may also prevent the external door from being opened together by an inertial force when the internal door is opened. The refrigerator includes a main body, a storage chamber provided in the main body so that a front surface thereof is opened, an internal door rotatably provided at a front surface of the main body so as to open and close the storage chamber and having an opening part in which a plurality of door guards are provided, an external door rotatably provided at a front surface of the internal door so as to open and close the opening part, and an internal door opening prevention device allowing or preventing opening of the internal door according to whether the external door is opened or closed.

Abstract: A refrigerator including a dispenser casing on which an ice discharge opening is formed and an opening/closing member placed in the dispenser casing for opening/closing the ice discharge opening. The dispenser also includes a lever member connected with the opening/closing member for making the opening/closing member rotate toward an open position; a damper member operated by the opening/closing member for controlling the closing speed of the opening/closing member when the opening/closing member rotates toward a close position; and a lever return member disposed between the dispenser casing and the lever member, the lever return member returning the lever member to an initial position independent of the closing speed of the opening/closing member. Thus, the return speeds of the opening/closing member and the lever member operate independent of each other.

Abstract: A refrigerator including a dispenser casing on which an ice discharge opening is formed and an opening/closing member placed in the dispenser casing for opening/closing the ice discharge opening. The dispenser also includes a lever member connected with the opening/closing member for making the opening/closing member rotate toward an open position; a damper member operated by the opening/closing member for controlling the closing speed of the opening/closing member when the opening/closing member rotates toward a close position; and a lever return member disposed between the dispenser casing and the lever member, the lever return member returning the lever member to an initial position independent of the closing speed of the opening/closing member. Thus, the return speeds of the opening/closing member and the lever member operate independent of each other.