Wound battery with continuous lugs, symmetric composite net-shaped electrodes and bag membrane safety valve

Abstract

A wound battery with continuous lugs, symmetric composite net-shaped electrodes and a bag membrane safety valve 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 net-shaped electrodes, high-strength conductive fiber nets serve as bottom plates of the electrodes, and coatings made of ruthenium oxides and other metal oxides and positive and negative pole active matter which are distributed in strip shapes are arranged on the bottom plates. The wound battery has the advantages that by means of the special end face current collection structure and the composite net-shaped electrodes, the current conduction capacity is effectively improved, so that the battery has high-rate charge and discharge characteristics of supercapacitors, the dual-membrane safety valve is safer so that the properties of the battery can be better.

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 development process of more than a century, the traditional production and processing technology has been continuously innovated, and new technology 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 ca...

AI Technical Summary

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; safety The valve explosion-proof membrane is a single-membrane structure, which is easy to cause safety accidents and has disadvantages such as low strength and difficult processing of lead foil as a grid material of a wound structure battery. The invention provides a continuous lug symmetrical composite mesh electrode capsule membrane safety valve roll Winding the battery, it 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, reduce the internal resistance of the electrode, and have the characteristics of high-rate charging and discharging of super capacitors; Safety valve double-membrane structure explosion-proof film makes the battery safer; the plate material is made of a mesh-like material woven from high-strength fiber materials with good conductivity Compared with the original lead foil, the strength is greatly improved and the processing is easy

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