The invention relates to an EFB start-stop battery positive and negative
electrode with high charge acceptance capacity and a preparation method thereof, belongs to the technical field of EFB start-stop batteries, and mainly solves the problem that the high-temperature life of a battery is reduced due to
carbon fibers contained in existing lead paste. The main features are as follows: an
anode lead paste formula includes 0.2% -- 0.4% of expanded
graphite, 0.08% - 0.12% of short
fiber, 0.1% - 0.3% of
metal sulfate additive, 0.6% - 1.0% of 4BS seed, 9% - 12% of pure water, 8% - 10% of 1.38 g / cm3
sulfuric acid solution and the balance of lead
powder; a
cathode lead paste formula includes 0.1 to 0.2 percent of
carbon nanotube slurry, 0.1 to 0.2 percent of
carbon black A, 0.02 to 0.06 percent of
carbon black B, 0.08 to 0.12 percent of short
fiber, 0.15 to 0.25 percent of organic additive A, 0.08 to 0.12 percent of organic additive B, 0.5 to 0.8 percent of nanometer
barium sulfate, 8 to 10 percent of pure water, 8 to 10 percent of 1.38 g / cm3
sulfuric acid solution and the balance of lead
powder. The invention has the characteristics of greatly improving battery charging acceptance capacity and further prolonging the battery life, and is mainly used for EFB starting and stopping batteries with high charging acceptance capacity.