▎ 摘　　要

NOVELTY - Quick freezing and defrosting tray comprises an outer casing, a heat pipe for heat conduction installed in the outer casing. A wire mesh metal is set on the heat pipe. A coolant filled in the outer casing corresponding to the heat pipe and the wire metal mesh and the a layer of graphene nanocomposite for heat conduction or cold conduction is provided at the top of outer casing. USE - The tray is useful in cooling and thawing foods. ADVANTAGE - The tray: provides constant cooling and thawing; has reduced freezing and thawing time; improves the efficiency of quick freezing and thawing. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a refrigerator comprising the quick freezing and defrosting tray.