Continuous tab asymmetric hybrid mesh pole piece equidirectional electrode coiled battery

Abstract

A continuous tab asymmetric hybrid mesh pole piece equidirectional electrode coiled battery comprises a battery shell and an electrical core. the battery is characterized in that the electrical core is a cylindrical object formed by coiling a positive plate, a negative plate and a diaphragm positioned between the positive plate and the negative plate through an electrical core reel; two top ends of the electrical core are respectively provided with a positive current collector plate and a negative current collector plate; the positive plate, close to the top of one side of the positive current collector plate, is provided with a tab, namely a positive continuous tab, which has the same length as the positive plate; the current collector plate is provided with a spiral groove, namely a positive plate groove; a negative terminal leads to the direction of the positive electrode side of the battery through an electrode terminal protective sleeve arranged at the side surface of the battery shell; and the negative plate is a hybrid mesh electrode with a high-strength conductive fiber mesh as a base plate, on which a metal oxide coating of ruthenium oxide, etc. and a negative active substance are dotted. Through the unique current collector structures at the end faces and the composite mesh electrode, current conducting capability is effectively enhanced, and the battery is endowed with characteristics 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] Traditional lead-acid battery manufacturing processes and technologies have gone through more than a century. In the course of more than a century of development, traditional production and processing technologies have been continuously innovated, and new technologies and equipment have been continuously adopted. [0003] 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...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of low current conduction capacity, high internal resistance, uneven current distribution during charging and discharging, and poor performance in occasions requiring high-rate charging and discharging of existing wound lead-acid batteries; lead foil is used as Due to the disadvantages of low grid material strength and difficult processing of winding structure batteries, the present invention provides a winding battery with continuous tabs, asymmetric mixed mesh pole pieces and electrodes in the same direction, 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 high-rate charging and discharging characteristics of super capacitors; the plate material is woven from high-strength fiber materials with good conductivity The mesh-like material used as the base material of the plate has good conductivity, the active material is not easy to detach, the strength of the plate is greatly improved compared with the original lead foil, and the processing is easy. The above characteristics prolong the cycle life of the battery and make the The performance of wound lead-acid batteries is further improved

Images