Collecting plate and cylindrical battery

The utility model provides a current collecting plate and a cylindrical battery, and relates to the technical field of cylindrical lithium batteries, the current collecting plate comprises a current collecting plate main body, and one side of the current collecting plate main body far away from a battery cell main body is also provided with at least one support bulge; a second diversion trench is formed in one side, facing the battery cell main body, of the collector plate main body through the supporting bulge, and the second diversion trench is communicated with the first diversion trench. According to the collector plate provided by the utility model, the first diversion trenches are formed in the collector plate main body, and when the collector plate is welded with the battery cell main body, the first diversion trenches are beneficial to infiltration of electrolyte into the battery cell main body, so that the infiltration efficiency of the battery cell main body is improved; and the supporting bulges ar