a substrate, which comprises a current collector and negative electrode active material bonded on the current collector;

first lithium bands arranged on a front surface of the substrate;

second lithium bands arranged on a back surface of the substrate; and

the first lithium bands and the second lithium bands are mutually staggered; adjacent ones of the first lithium bands are spaced apart and adjacent ones of the second lithium bands are spaced apart, respectively; interval c1 between two adjacent first lithium bands and width b1 of each first lithium band meet the following relational expression: c1=b1; interval c2 between two adjacent second lithium bands and width b2 of each second lithium band meet the following relational expression: c2=b2; a distance between the midline of one first lithium band and the midlines of its two adjacent second lithium bands are respectively d1 and d2, d1=d2; the negative electrode active material comprises, by weight, 94-97.5 parts of carbon material, lithium titanate, or silicon monoxide, 0.5-1.5 parts of conductive agent, 1-2 parts of binder, 0.5-1.5 parts of thickener and 0.5-1.5 parts of lithium-containing additive; and the carbon material is selected from at least one of graphite, mesophase carbon microspheres and silicon-carbon composite material.