The invention discloses a super battery carbon supplementing method. The method comprises the following steps: 1, preparing a paste from 100 parts by weight of lead
powder, 4-10 parts by weight of
sulfuric acid, 0.1-8 parts by weight of a binder, 0.1-2 parts by weight of
barium sulfate, 0.01-2 parts by weight of a
hydrogen evolution inhibitor, 1-4 parts by weight of
active carbon, 0.1-2 parts by weight of heterogeneous
graphite, 0.05-0.5 parts by weight of
acetylene black, 1-4 parts by weight of
humic acid, 12-21 parts by weight of water, and 0.1-0.2 parts by weight of short fibers, and smearing; 2, curing smeared negative plates under conditions that the temperature is 80DEG C and the
relative humidity is 96% for not less than 60h; 3, forming the cured negative plates for not less than 20h; and 4, adding carbon materials which are same with the carbon materials in step 1 and have a weight being 0.4-20% of the total volume of an acid solution in a
boric acid pool, washing the negative plates formed in step 3 with water, immersing the negative plates in the
boric acid pool for 10-20min,
fishing out, sending to a
drying device, and
drying.