CURRENT COLLECTOR AND SECONDARY BATTERY

The present application relates to a current collector and a secondary battery. The current collector is used to electrically connect a pole and tab of a secondary battery, and comprises: a first sheet; a second sheet that is disposed to intersect the first sheet, the second sheet being used to electrically connect to the pole; a current collection unit, the current collection unit and the second sheet being disposed at two opposite sides of the first sheet in a first thickness direction thereof, and the first thickness direction thereof intersecting with a second thickness direction of the second sheet; the current collection unit comprises a first current collection sheet, the first current collection sheet is used to electrically connect to the tab, the first current collection sheet is provided with a first connection terminal that is connected to the first sheet, and the first connection terminal extends in a first direction perpendicular to the first thickness direction and the second thickness direction. The current collector according to the embodiments of the present application may ensure that the connection state with the tab is stable and reliable, thereby improving the reliability and safety of the secondary battery.