Winding type storage battery equipped with symmetrical composite electrode plate homodromous electrode capsule-film safety valve

Abstract

Disclosed is a winding type storage battery equipped with a symmetrical composite electrode plate homodromous electrode capsule-film safety valve. The winding type storage battery comprises a battery shell and a cell; the winding type storage battery is characterized in that cell comprises a positive electrode plate, a negative electrode plate and a diaphragm positioned between the positive electrode plate and the negative electrode plate, and the cell is wound into a columnar body through a cell winding shaft; a positive electrode current collecting tray and a negative electrode current collecting tray are arranged on the end top parts of the two ends of the cell respectively; a tab, which is as long as the positive electrode plate, and namely, a positive electrode continuous tab, is arranged at the top end on one side, close to the positive electrode current collecting tray, of the positive electrode plate; a spiral groove body, namely a positive electrode plate clamping groove, is formed in the current collecting tray; a negative electrode terminal is lead to a positive electrode end direction of the battery through an electrode terminal protection sleeve on the side surface of the battery shell; the positive electrode plate and the negative electrode plate are composite electrodes; and metal oxide coating layers, which adopt ruthenium oxide and the like, in strip-shaped distribution are arranged on lead plates. The winding type storage battery has the beneficial effects of relatively high current conduction capability, super-capacitor high-rate charging and discharging capability, and safer characteristic due to the dual-film safety valve.

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] 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 serious heating and the battery temperature is too high, which will cause safety hazards; The performance of charging and discharging is not good; the explosion-proof membrane of the general battery safety valve is a single-membrane structure. Once the membrane is corroded by acid, the safety valve will lose its prot...

AI Technical Summary

Problems solved by technology

[0003] 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. The invention provides a symmetrical composite pole piece with the same direction electrode capsule membrane safety valve wound battery, which can make the current distribution even during the charging and discharging process, and effectively increase the current. Conductivity, improve the mechanical strength and anti-vibration performance of the electrode, reduce the internal resistance of the electrode, and at the same time have the characteristics of high-rate charging and discharging of supercapacitors; the explosion-proof film with double-film structure of the safety valve makes the battery safer. 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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