Pole piece and battery

The utility model relates to the technical field of new energy lithium batteries, in particular to a pole piece and a battery. The pole piece comprises a base material layer, a first bonding layer, a positive current collector layer, a second bonding layer and a negative current collector layer, the base material layer is provided with a first wall surface and a second wall surface which are opposite to each other in the thickness direction, the first bonding layer is connected to the first wall surface, the first bonding layer comprises a first corner part located at the corner position of the pole piece, and the second bonding layer comprises a second corner part located at the corner position of the pole piece. The positive current collector layer is connected to the side, away from the base material layer, of the first bonding layer, the positive current collector layer comprises a second corner part located at the corner position of the pole piece, the second bonding layer is connected to the second wall