The invention discloses a high-performance power accumulator and a preparation method thereof.
Graphite is substituted by a novel conductive agent, namely,
polyaniline, in the lead paste of a positive plate; the
conductivity of a mixture of the
polyaniline and
lead dioxide is improved by 12.5 times;
acetylene black is substituted by a novel conductive agent, namely, super
carbon black, in the lead paste of a negative plate, the specific surface area of the super
carbon black is 130-190m<2> / g, and the adsorption is high. During preparation, water is firstly added, then an additive is added, the water and the additive are mixed and then lead
powder is added, while the original steps of adding the additive firstly, adding the lead
powder, adding the water and then stirring are changed, so that the additive is well dispersed. According to the high-performance power accumulator and the preparation method thereof, the
utilization rate of an active material is effectively improved, the consistency of the battery is improved, the
discharge depth of the battery is great, and the cycle life is long.