Asymmetric hybrid mesh electrode porous collector plate double-diaphragm safety valve coiled battery

Abstract

The invention discloses an asymmetric hybrid mesh electrode porous collector plate double-diaphragm safety valve coiled battery which comprises a battery shell and a battery cell, and is characterized in that the battery cell is coiled into a cylinder through a positive plate, a negative plate and a diaphragm positioned between the positive plate and the negative plate through a battery cell winding shaft; a positive collector plate and a negative collector plate are respectively arranged on the tops of two ends of the battery cell; a tab with equal length to the positive plate, namely a positive continuous tab, is arranged on the top end, which is close to one side of the positive collector plate, of the positive plate; the negative plate is a hybrid mesh electrode; a high-strength conductive fiber mesh serves as a bottom plate; and coatings of ruthenium oxide and other metallic oxides in point shape distribution and negative active substances are arranged on the bottom plate. The battery disclosed by the invention has the beneficial effects that due to the unique end-face collector structure and the hybrid mesh electrode, the current conduction ability is effectively improved, and the battery has super-capacitance high-rate charge and discharge characteristics; and moreover, the double-diaphragm safety valve is further safe, so that the performance of the battery 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 and has disadvantages such as low strength and difficult processing of lead foil as a grid material of a wound structure battery. The safety valve winds the battery, which 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 high-rate charging of supercapacitors and Discharge characteristics, safety valve double-membrane structure explosion-proof film makes the battery safer; the plate material is made of mesh material woven from high-strength fiber material with good conductivity as the base material of the plate, which has good conductivity and the active material is not easy to detach , the strength of the plate is greatly improved compared with the original lead foil and it is easy to process

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