Winding type storage battery equipped with symmetrical mixed electrode plate homodromous electrode dual-film safety valve

Abstract

Disclosed is a winding type storage battery equipped with a symmetrical mixed electrode plate homodromous electrode dual-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; and the positive electrode plate and the negative electrode plate are mixed electrodes, and metal oxide coating layers in dotted distribution, such as ruthenium oxide and the like, are distributed on the positive electrode plate and the negative electrode plate. 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 double-membrane safety valve winding battery with symmetrical mixed pole pieces and electrodes in the same direction. Conductivity, improve the mechanical strength and anti-vibration performance of the electrode, reduce the internal resistance of the electrode, and have high-rate charging and discharging characteristics of super capacitors; the safety valve double-film structure explosion-proof film makes the battery safer and improves the safety of the battery performance, prolong the cycle life of the battery, and further improve the performance of the wound lead-acid battery

Images