Winding type storage battery equipped with asymmetrical composite electrode plate homodromous electrode porous current collecting trays

Abstract

Disclosed is a winding type storage battery equipped with asymmetrical composite electrode plate homodromous electrode porous current collecting trays. 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 negative electrode plate is a composite electrode; and a metal oxide coating layer in strip-shaped distribution is arranged on a lead plate. The winding type storage battery has the beneficial effects as follows: by virtue of the unique end plane current collecting structure and the composite electrodes, the current conduction capability is effectively improved; and meanwhile, the battery has the super-capacitor high-rate charging and discharging characteristics.

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; Charge and discharge use cases do not perform well. Contents of the invention [0003] In order to overcome the defects of low current conduction capacity, high internal resistance, uneven current distribution during charging...

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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, this paper The invention provides an asymmetrical composite pole piece and a coiled storage battery with holes in the current collecting plate of the electrode in the same direction, which can make the current distribution even during the charging and discharging process, effectively improve the current conduction capacity, and improve the mechanical strength and vibration resistance of the electrode performance, reduces the internal resistance of the electrode, and has the characteristics of high-rate charging and discharging of supercapacitors, 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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