Winding battery equipped with continuous tab asymmetrical mixed net-shaped electrode dual-film safety valve

Abstract

Disclosed is a winding battery equipped with a continuous tab asymmetrical mixed net-shaped electrode dual-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 negative electrode plate is a mixed net-shaped electrode and takes a high-strength conducive fiber net as a bottom plate; and a metal oxide coating layer in dotted distribution, such as ruthenium oxide and the like, and a negative electrode active material are arranged on the bottom plate. The winding battery has the beneficial effects as follows: 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 improved.

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 applications requiring high-rate charging and discharging of existing wound-type lead-acid batteries; the safety valve is explosion-proof The membrane is a single-membrane structure, which is easy to cause safety accidents, and the lead foil used as the grid material of the winding structure battery has disadvantages such as low strength and difficult processing. Battery, 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, safe The double-membrane structure explosion-proof film of the valve makes the battery safer; the plate material is made of mesh material woven with high-strength fiber material with good conductivity as the base material of the plate, which has good conductivity, and the active material is not easy to detach. Compared with the original lead foil, the strength is greatly improved and it is easy to process

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