Bipolar high-power lead storage battery

Abstract

The invention provides a bipolar high-power lead storage battery. The bipolar high-power lead storage battery comprises a storage battery tank, and a single positive plate, a plurality of bipolar plates and a single negative plate, which are sequentially arranged in the storage battery tank, wherein a porous separator for the storage battery is arranged between each two of the adjacent single positive plates, the bipolar plates and the single negative plates; each bipolar plate includes a bipolar plate conductive substrate; an active substance layer with negative polarity is applied on one side of the bipolar plate conductive substrate facing the single positive plate; an active substance layer with positive polarity is applied on one side of the bipolar plate conductive substrate facing the single negative plate; and bumps embedded into the active substrate layer are arranged on at least one side of the bipolar plate conductive substrate facing the single positive plate and the single negative plate. The bipolar high-power lead storage battery provided by the invention has a good effect in conducting current and fixing the active substrate layers, and has the advantages of simple manufacture process, improved plate thickness, simplified assembly of a plate group, reduced battery weight, enlarged battery capacity, and improved reliability and corrosion resistance.

Description

technical field [0001] The invention relates to the field of storage batteries, in particular to a bipolar high-power lead storage battery. Background technique [0002] Electric motorcycles, pure electric passenger cars, and hybrid cars have extremely high demands on the output power and fast charging capabilities of batteries, and most people pin their hopes on nickel-metal hydride batteries and lithium-ion batteries. Ni-MH batteries have been successfully used in hybrid vehicles due to their excellent safety performance and high-power performance. Batteries catch up and are rarely used in electric motorcycles and pure electric passenger cars. Lithium-ion batteries are expensive, the technology is immature, and the safety performance needs to be further improved, and there is still a long way to go. Therefore, the development of a high-power, light-weight, long-life lead-acid battery is an important technical route for electric motorcycles, pure electric passenger cars, ...

AI Technical Summary

Problems solved by technology

However, since the two sides of the dense layer in the center of the conductive substrate are made of foamed graphite layers, it is difficult to electroplate the lead-tin alloy in the pores of the foam graphite and fill the active material, and the positive electrode electroplated with the lead-tin alloy is easy to corrode during the deep cycle use of the battery. The layer is exposed, resulting in a large amount of oxygen precipitation during the charging process, increasing water loss and shortening the life

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