Bipolar lead-acid storage battery

Abstract

The invention relates to the field of storage batteries, and discloses a bipolar lead-acid storage battery. The bipolar lead-acid storage battery comprises a positive side polar plate, a negative sidepolar plate and a bipolar side plate grid, wherein the bipolar side plate grid comprises a plurality of polar plates arrayed side by side; positive lead plaster and negative lead plaster are respectively coated on the two faces of the polar plates, and solidified; a membrane is padded between every two adjacent polar plates; the two sides of the membranes are respectively contacted with the positive lead plaster and the negative lead plaster; a plurality of wiring terminals are respectively welded on two polar faces of the bipolar side plate grid; the wiring terminals on each polar face are connected by leading-out wires; frames of the bipolar side plate grid are subjected to injection molding to form plastic frames; the leading-out wires are led out of the plastic frames at the upper part of the bipolar side plate grid; the positive side polar plate and the negative side polar plate are respectively formed by injection molding of the two polar faces of the bipolar side plate grid welded with the wiring terminals; the positive lead plaster and the negative lead plaster are respectively coated on one face of the bipolar side plate grid not connected with the wiring terminals; and an electrolyte is contained in the bipolar side plate grid. The bipolar lead-acid storage battery is simple in structure, convenient to manufacture, low in cost and high in reliability.

Description

technical field [0001] The invention relates to the field of accumulators, in particular to a bipolar lead-acid accumulator. Background technique [0002] In recent years, in order to protect the environment and reduce carbon dioxide emissions, more new energy sources have been developed and utilized, especially in the automotive industry, but high-performance secondary batteries are still the current technical bottleneck. Practice in recent years has proved that lithium-ion batteries are Because of its structure and materials, it cannot be charged and discharged with a large current, and cannot be guaranteed. Therefore, from the current situation, bipolar lead-acid batteries will be the best choice for batteries in the automotive industry. However, they have not yet been developed at home and abroad. Mature and practical bipolar lead-acid batteries have been produced, and the bipolar plate structure is the biggest difficulty. The current public plate structures are relative...

AI Technical Summary

Problems solved by technology

[0002] In recent years, in order to protect the environment and reduce carbon dioxide emissions, more new energy sources have been developed and utilized, especially in the automotive industry, but high-performance secondary batteries are still the current technical bottleneck. Practice in recent years has proved that lithium-ion batteries are Because of its structure and materials, it cannot be charged and discharged with a large current, and cannot be guaranteed. Therefore, from the current situation, bipolar lead-acid batteries will be the best choice for batteries in the automotive industry. However, they have not yet been developed at home and abroad. A mature and practical bipolar lead-acid battery has been produced, and the bipolar plate structure is the biggest difficulty. The current public plate structure is relatively complicated, the production process is difficult, the cost is high, and the reliability is low.

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