Winding battery equipped with continuous tab symmetrical mixed net-shaped electrode capsule-film safety valve

Abstract

Disclosed is a winding battery equipped with a continuous tab symmetrical mixed net-shaped electrode capsule-film safety valve. The winding battery comprises a battery shell and a cell; the winding battery is characterized in that cell comprises a positive electrode plate, a negative electrode plate and a diaphragm positioned between the positive electrode plate and the negative electrode plate, and the cell is wound into a columnar body through a cell winding shaft; a positive electrode current collecting tray and a negative electrode current collecting tray are arranged on the end top parts of the two ends of the cell respectively; a tab, which is as long as the positive electrode plate, and namely, a positive electrode continuous tab, is arranged at the top end on one side, close to the positive electrode current collecting tray, of the positive electrode plate; a spiral groove body, namely a positive electrode plate clamping groove, is formed in the current collecting tray; the positive electrode plate and the negative electrode plate are mixed net-shaped electrodes and take high-strength conducive fiber net as bottom plates; and metal oxide coating layers in dotted distribution, such as ruthenium oxide and the like, and positive electrode and negative electrode active materials are arranged on the bottom plate. By virtue of the unique end plane current collecting structure and the mixed net-shaped electrodes, the current conduction capability is effectively improved; meanwhile, the battery has the super-capacitor high-rate charging and discharging characteristic; and the dual-film safety valve is safer, so that the performance of the battery is better.

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 of the existing wound lead-acid batteries, and poor performance in applications requiring high-rate charging and discharging; safety The valve explosion-proof membrane is a single-membrane structure, which is easy to cause safety accidents and has disadvantages such as low strength and difficult processing of lead foil as a grid material of a wound structure battery. The invention provides a continuous tab symmetrical mixed mesh electrode capsule membrane safety valve roll Winding the battery, it 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 super capacitors; Safety valve double-membrane structure explosion-proof film makes the battery safer; the plate material is made of a mesh-like material woven from high-strength fiber materials with good conductivity Compared with the original lead foil, the strength is greatly improved and the processing is easy

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