Continuous tab/netlike pole piece coiled lead-acid storage battery

Abstract

The invention relates to a continuous tab / netlike pole piece 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 the high-strength fiber netlike pole pieces are high in strength and favorable in electric conductivity, thereby further improving the performance of the storage battery.

Description

Technical field [0001] The invention relates to a lead-acid battery, in particular to a high-power, high-rate discharge wound lead-acid battery, and belongs to the technical field of battery processing and manufacturing. Background technique [0002] The traditional lead-acid battery manufacturing process and technology have gone through more than a century. In the development process of more than a century, traditional production and processing technologies have been continuously innovated, and new technologies and equipment have been continuously adopted. [0003] At present, most traditional wound lead-acid batteries use single or multiple tabs as the current collection method, and the current extraction and introduction are limited to a limited number of welding points, with low conduction capability, high internal resistance, and charging. During the discharge process, the current distribution is uneven, and it is difficult to realize high current charge and discharge. In ad...

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 in the charging and discharging process of the existing wound lead-acid battery; 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, and reduce the internal resistance of the electrode; the plate material is made of high-strength fiber material with good conductivity The woven mesh-like material is used as the base material of the pole plate, and the battery active material is evenly coated on the base material, and the mesh-like material woven by high-strength fiber material is used as the base material of the pole plate, and its surface area is relatively The lead plate of the same area is much larger, which improves the conductivity and adhesion between the base material and the battery active material coated on it, and the strength of the plate is greatly improved compared with the original lead foil, while reducing Reduce the difficulty of processing, prolong the cycle life of the battery, and further improve the performance of the wound lead-acid battery

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