Negative electrode formula for improving high-temperature performance of lead-acid storage battery and preparation method of negative electrode formula

The invention provides a negative electrode formula for improving the high-temperature performance of a lead-acid storage battery. The negative electrode formula comprises the following components in parts by weight: 100 parts of lead powder, 8-11 parts of dilute sulphuric acid, 9-13 parts of deionized water, 0.06-0.14 part of short fibers, 0.10-0.20 part of lignin, 0.3-0.45 part of humic acid, 0.05-0.1 part of a synthetic tanning agent, 0.8-1.2 parts of barium sulfate, 0.10-0.15 part of carbon black, 0.04-0.08 part of high-conductivity graphite, 0.08-0.15 part of a first hydrogen evolution inhibitor and 0.05-0.1 part of a second hydrogen evolution inhibitor. The method has the advantages that the mixture of the hydrogen evolution inhibitor and the humic acid is added into the formula of the negative electrode lead paste, and a certain proportion of humic acid is added into the negative electrode of a lead-acid battery, so that the sulfation phenomenon of the negative electrode can be effectively relieved; an