Continuous tab double-diaphragm safety valve wound lead-acid battery

Abstract

The invention discloses a continuous tab double-diaphragm safety valve wound lead-acid battery which comprises a battery shell and a battery cell, and is characterized in that the battery cell is wound into a cylinder by a positive plate, a negative plate and a diaphragm positioned between the positive plate and the negative plate through a battery cell winding shaft, wherein a positive collector plate and a negative collector plate are respectively arranged on the top of two ends of the battery cell; a tab with equal length to that of the positive plate, namely a positive continuous tab, is arranged on the top of the positive plate close to one side of the positive collector plate; a spiral groove, namely a positive plate clamping groove, is formed in the collector plate; a continuous tab of the pole piece is clamped in a plate clamping groove along the plate clamping groove and fixed through a welding method. The battery disclosed by the invention has the beneficial effects that due to the unique end-face collector structure, the collector area of the battery plate is enlarged, and the mechanical strength and anti-shake performance of the electrode are greatly improved; and due to the double-diaphragm safety valve, the battery can be well protected, so that the safety of the battery is improved, and the cycle life of the battery is prolonged.

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 defects of low current conduction capacity, high internal resistance, and uneven current distribution during charging and discharging of the existing wound-type 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 wound 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 anti-vibration performance of the electrode and reduce the electrode load. Internal resistance, safety valve double membrane structure explosion-proof membrane 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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