Winding battery with asymmetric composite meshed pole plates, same-direction electrodes and membrane safety valve

Abstract

A winding battery with asymmetric composite meshed pole plates, same-direction electrodes and a membrane safety valve comprises a battery shell and a battery cell and is characterized in that the battery cell forms a cylindrical shape by winding a positive pole plate, a negative pole plate and a separator by a battery cell winding shaft, wherein the separator is arranged between the positive pole plate and the negative pole plate, a positive current collection disc and a negative current collection disc are respectively arranged at tops of two ends of the battery cell, a tab, namely a positive continuous tab is arranged at top end of one side, near to the positive current collection disc, of the positive pole plate and is equal to the positive pole plate in length, a spiral groove, namely a positive pole plate clamping groove is formed in the current collection disc, a negative terminal is led to a positive end direction of the battery by an electrode terminal protection sleeve, and the electrode terminal protection sleeve is arranged on a side surface of the battery shell. By a special end-surface current collection structure and the high-strength fiber meshed composite pole plates, the current conduction capability is effectively improved; meanwhile, the battery has high-rate charge and discharge characteristic of a supercapacitor; and the dual-membrane safety valve is safer, so that application performance of the storage battery is further 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 heat generation and high battery temperature, which will cause safety hazards; the explosion-proof membrane of the general battery safety valve is a single membrane structure, and once the membrane is corroded by acid, the safety valve will be damaged. Loss of protective effect shortens battery life and easil...

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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, poor performance in applications requiring high-rate charging and discharging, and explosion-proof safety valves The membrane has a single-membrane structure, which is easy to cause safety accidents. The lead foil used as the grid material of the wound structure battery has 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; The explosion-proof film with double-membrane structure of the safety valve makes the battery safer and improves the safety of the battery; the plate material is made of a mesh-shaped material woven from a high-strength fiber material with good conductivity as the base material of the plate. The active material is not easy to detach, the strength of the plate is greatly improved compared with the original lead foil, and the processing is easy

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