Asymmetric mixed mesh electrode type porous current collection disc type winding type storage battery

Abstract

The invention relates to an asymmetric mixed mesh electrode type porous current collection disc type winding type storage battery. The winding type storage battery comprises a battery shell and a battery cell. The winding type storage battery is characterized in that the battery cell is a cylindrical body formed by a positive plate, a negative plate and a diaphragm through the winding of a battery core reel, the diaphragm is located between the positive plate and the negative plate, and a positive current collection disc and a negative current collection disc are respectively arranged on the tops of two ends of the battery core; a lug, namely a positive continuous lug, having the same length with the positive plate is arranged on the top end of one side, close to the positive current collection disc, of the positive plate, and a spiral groove, namely a positive plate clamping groove, is formed in the positive current collection disc; and the negative plate is a mixed mesh electrode adopting a high-strength conductive fiber as a base plate, metal oxide coating layers and negative active substances are distributed on the lead plate in a point manner, and substances of the metal oxide coating layers are ruthenium oxide and the like. The winding type storage battery has the beneficial effects that by utilizing a special end surface current collection structure and the mixed mesh electrode, the current conduction capacity is effectively improved, and meanwhile, the battery has high-rate charging and discharging properties of a super-capacitor.

Description

technical field [0001] The invention relates to a lead-acid storage battery, in particular to a high-power, high-rate discharge wound lead-acid super storage battery, which belongs to the technical field of storage battery processing and manufacturing. Background technique [0002] At present, most of the traditional winding lead-acid batteries use single or multiple tabs as the current collection method. During the discharge process, the current distribution is uneven, and it is difficult to realize high-current charge and discharge. In addition, when charging and discharging with high current, due to the large internal resistance of the battery, it will cause serious heating and the battery temperature is too high, which will cause safety hazards; The performance of the charging and discharging application is not good; there are still problems in the plate material and winding process of the existing winding structure lead-acid battery. Due to the low mechanical strength ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of low current conduction capacity, high internal resistance, uneven current distribution during charging and discharging of the existing wound lead-acid batteries, and poor performance in applications requiring high-rate charging and discharging; Foil has the disadvantages of low strength and difficult processing as the grid material of the wound structure battery. The present invention provides a wound type battery with asymmetric mixed mesh electrode and porous current collector, which can make the current distribution even during the charging and discharging process. Effectively improve the current conduction capacity, improve the mechanical strength and anti-vibration performance of the electrode, reduce the internal resistance of the electrode, and have the characteristics of high-rate charging and discharging of supercapacitors; the plate material is woven with high-strength fiber material with good conductivity The formed mesh material has good conductivity as the base material of the pole plate, the active material is not easy to detach, the strength of the pole plate is greatly improved compared with the original lead foil, and the processing is easy

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