A CURRENT COLLECTING SPINE OF TUBULAR POSITIVE PLATE FOR USE IN LEAD-ACID BATTERY

摘要

The present invention manufactures a current collector spine in a lead-acid battery having a grooved axis, and increases the surface area in contact with the positive electrode active material, thereby lowering the current density at the surface, and reducing the resistance to increase the power density. It is about.;The current collector spine of the cylindrical bipolar plate of the present invention is composed of a shaft (1) and the pin (3) for supporting the shaft, wherein the shaft is formed with two or more grooves (2), the cross section of the shaft when cutting the shaft in the horizontal direction Serrated 4 is formed.;The current collector spine of the present invention has a wider contact area with the positive electrode active material than the conventional current collector spine, thereby increasing the output density of the cylindrical positive electrode plate and increasing the energy density of the lead acid battery.