There are arcs, wavy edges, warped edges, etc. after the lithium battery pole pieces are cut. These conditions may be caused by a variety of reasons. Please compare and exclude: 1. The roller surface of the slitting machine is not handled well and the process design is not reasonable. Causes: horizontal slippage (commonly known as left and right swimming), wrinkling (unbalanced pulling of the material), roll off (the material is too light and thin) on the roller during the slitting p