Asymmetric composite mesh plate same-direction electrode type double-membrane safety valve type winding battery

Abstract

The invention relates to an asymmetric composite mesh plate same-direction electrode type double-membrane safety valve type winding battery. The winding battery comprises a battery shell and a battery cell. The winding type storage battery is characterized in that the battery cell is a cylindrical body formed by a positive plate, a negative plate and a diaphragm through the winding of a battery core reel, the diaphragm is located between the positive plate and the negative plate, and a positive current collection disc and a negative current collection disc are respectively arranged on the tops of two ends of the battery core; a lug having the same length with the positive plate is arranged on the top end of one side, close to the positive current collection disc, of the positive plate, and a spiral groove is formed in the positive current collection disc; a negative terminal is guided to the direction of a positive end of the battery through an electrode terminal protecting sleeve arranged on the side surface of the battery shell; and the negative plate is a composite mesh electrode, and metal oxide coating layers are distributed on a base plate in a strip manner. The winding battery has the beneficial effects that by utilizing a special end surface current collection structure and a high-strength fiber mesh composite plate, the strength is high, the conductivity is good, the current conduction capacity is effectively improved, and meanwhile, the battery has high-rate charging and discharging properties of a super-capacitor; and a double-membrane safety valve is relatively safe, and the battery performance is relatively good.

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 charging and discharging; in addition, due to the large internal resistance of the battery during high-current charging and discharging, it will cause serious heating and the battery temperature is too high, which will cause potential safety hazards; the general battery safety valve explosion-proof membrane It is a single-membrane structure. Once the membrane is corroded by acid, the safety valve will lose its protective effect, shorten the battery life, and easily ...

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, poor performance in applications requiring high-rate charging and discharging, and explosion-proof safety valves The membrane is a single-membrane structure, which is easy to cause safety accidents, and the lead foil used as the grid material of the winding structure battery has disadvantages such as low strength and difficult processing. Winding the battery, it 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 the characteristics of high-rate charging and discharging of super capacitors; Safety valve double-membrane structure explosion-proof film makes the battery safer; the plate material is made of a mesh-like material woven from high-strength fiber materials with good conductivity Compared with the original lead foil, the strength is greatly improved and the processing is easy

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