Negative current collector capable of safely supplementing lithium, negative plate and lithium supplementing type battery

The utility model discloses a cathode current collector capable of safely supplementing lithium. The cathode current collector comprises a cathode current collector basic foil, a plurality of vertically penetrating through holes are uniformly distributed in the cathode current collector basic foil at equal intervals; a lithium supplementing filler is arranged in each penetrating through hole; the lithium supplementing filler comprises metal lithium powder; the lithium supplementing filler is a lithium supplementing filler with a multi-layer structure; the lithium supplementing filler of the multi-layer structure comprises at least one metal lithium powder layer. The utility model also discloses a negative plate capable of safely supplementing lithium and a lithium supplementing type battery. The lithium supplement device is scientific in design, can effectively improve the energy density of the battery cell, ensures the safety of the lithium supplement process, can slowly release and control the lithium suppl