Wound battery with continuous lugs and symmetric composite electrodes

Abstract

A wound battery with continuous lugs and symmetric composite electrodes comprises a battery shell and a cell, and is characterized in that the cell is wound into a columnar body by means of a positive pole piece, a negative pole piece and a membrane between the positive pole piece and the negative pole piece through a cell winding shaft; a positive pole current collection plate and a negative pole current collection plate are arranged at the tops of the two ends of the cell respectively; the lug with the same length as the positive pole piece is arranged at the top of the side, close to the positive pole current flow plate, of the positive pole piece and serves as the positive pole continuous lug; the positive pole current collection plate is provided with a spiral groove which is a positive pole piece clamping groove; the positive pole piece and the negative pole piece are the composite electrodes, lead plates serve as bottom plates of the composite electrodes, and metal oxide coatings distributed in strip shapes are arranged on the lead plates. The wound battery has the advantages that by means of the special end face current collection structure and the composite electrodes, the current conduction capacity is effectively improved, so that the battery has high-rate charge and discharge characteristics of supercapacitors.

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...

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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 of the existing wound lead-acid batteries, and poor performance in applications requiring high-rate charging and discharging, this paper The invention provides a winding battery with continuous lug symmetrical composite electrodes, 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 electrodes, and reduce the internal resistance of the electrodes At the same time, it has the characteristics of high-rate charging and discharging of super capacitors, which improves the safety of the battery, prolongs the cycle life of the battery, and further improves the performance of the wound lead-acid battery

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