Continuous tab/dual-membrane safety valve/perforated collector disk coiled lead-acid storage battery

Abstract

The invention relates to a continuous tab / dual-membrane safety valve / perforated collector disk coiled lead-acid storage battery. The lead-acid storage battery comprises a battery shell and a battery cell. The lead-acid storage battery is characterized in that the battery cell is a columnar body formed by coiling a positive pole piece, a negative pole piece and a diaphragm positioned between the positive pole piece and the negative pole piece through a battery cell roll, and the tops of the two ends of the battery cell are respectively provided with a positive pole collector disk and a negative pole collector disk; and the top end of one side of the positive pole piece close to the positive pole collector disk is provided with a tab (namely positive pole continuous tab) having the same length as the positive pole piece, the collector disk is provided with a helical groove body (namely positive pole piece clamping groove), and the continuous tab of the pole piece is clamped in the pole piece clamping groove and is fixed through a welding method. The lead-acid storage battery has the following advantages: through the unique end surface collector structure, the collection area of the battery pole pieces is increased, and the mechanical strength and anti-shake performance of the poles are greatly improved; and a dual-membrane safety valve can better protect the battery, thereby improving the safety and cycle life of the battery.

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 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 cause...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of low current conduction capacity, high internal resistance, and uneven current distribution during charging and discharging of the existing wound lead-acid batteries; the safety valve explosion-proof membrane is a single membrane structure, which is easy to cause safety accidents. The invention provides a continuous-tab double-membrane safety valve with a hole collector plate winding lead-acid battery, which can make the current distribution even during the charging and discharging process, effectively improve the current conduction capacity, and improve the mechanical strength and shock resistance of the electrode. Dynamic performance and reduce electrode internal resistance, safety valve double-membrane structure explosion-proof film makes the battery safer, prolongs the cycle life of the battery, and further improves the performance of the wound lead-acid battery

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