Symmetric composite electrode porose current collector double membrane safety valve coiled storage battery

Abstract

A symmetric composite electrode porose current collector double membrane safety valve coiled storage battery comprises a battery shell and a battery cell. The symmetric composite electrode porose current collector double membrane safety valve coiled storage battery is characterized in that the battery cell comprises a positive plate, a negative plate and a diaphragm located between the positive plate and the negative plate, the positive plate, the negative plate and the diaphragm are coiled to form a column through a battery cell winding shaft, and a positive current collector and a negative current collector are arranged on the end roofs of the two ends of the battery cell; an electrode lug with the length equal to that of the positive plate is arranged at the top end of the side, close to the positive current collector, of the positive plate, the electrode lug is a positive continuous electrode lug, the positive plate and the negative plate are composite electrodes, and the construction of the positive plate and the negative plate is that a lead plate serves as a bottom plate which is provided with metal oxide coatings distributed in a striped mode. The symmetric composite electrode porose current collector double membrane safety valve coiled storage battery has the advantages that the current conducting capacity is effectively improved through the unique end surface current collection structure and the composite electrodes; meanwhile, the battery has super-capacitor high-rate charging and discharging characteristics, a double membrane safety valve can better protect the battery, and the battery user performance is improved.

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 a symmetrical composite electrode and a collector plate with holes. It can make the current distribution even during the charging and discharging process, effectively improving The current conduction ability improves the mechanical strength and anti-vibration performance of the electrode, reduces the internal resistance of the electrode, and has the characteristics of high-rate charging and discharging of supercapacitors. The double-film explosion-proof film of the safety valve makes the battery safer and prolongs the battery life. cycle life, further improving the performance of wound lead-acid batteries

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