Winding type lead-acid storage battery with continuous tabs, meshed pole plates and porous current collection discs

Abstract

A winding type lead-acid storage battery with continuous tabs, meshed pole plates and porous current collection discs comprises a battery shell and a battery cell and is characterized in that the battery cell forms a cylindrical body by winding a positive pole plate, a negative pole plate and a separator by a battery cell winding shaft, wherein the separator is arranged between the positive pole plate and the negative pole plate, a positive current collection disc and a negative current collection disc are respectively arranged at tops of two ends of the battery cell, a tab, namely a positive continuous tab is arranged at a top end of one side, near to the positive current collection disc, of the positive pole plate and is equal to the positive pole plate in length, a spiral groove, namely a positive pole plate clamping groove is formed in the current collection disc, and the continuous tabs of the pole plates are clamped in the pole plate clamping grooves along the pole plate clamping grooves and are fixed by a welding method. The winding type lead-acid storage battery has the beneficial effects that by a special end-surface current collection structure, the current collection areas of the battery pole plates are expanded, the internal resistance is reduced, and the mechanical strength and the anti-vibration performance of electrodes are substantially improved; and the high-strength fiber meshed pole plates are high in strength and good in conductivity, so that the performance of the storage battery is further 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 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 lead-acid batteries; lead foil is used as a grid material of wound structure batteries with low strength and difficult processing, etc. Disadvantages, the present invention provides a wound-type lead-acid battery with a continuous lug mesh pole piece and a porous collector disc, which can make the current distribution even during the charging and discharging process, effectively improve the current conduction capacity, and reduce the internal resistance of the electrode; The plate material uses a mesh-like material woven with high-strength fiber materials with good conductivity as the base material of the plate, and the battery active material is evenly coated on the base material, due to the high-strength fiber material woven mesh As the base material of the pole plate, its surface area is much larger than that of the lead plate with the same area, which improves the conductivity and adhesion between the base material and the battery active material coated on it, and the strength of the pole plate is higher than that of the lead plate. The original lead foil has been greatly improved, and at the same time, the difficulty of processing has been reduced, the cycle life of the battery has been extended, and the performance of the wound lead-acid battery has been further improved.

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