A storage battery, a manufacturing method thereof, and a busbar forming process

By using prefabricated non-lead metal strips to weld the low-melting-point brazing filler layer of the electrode tabs, the problems of high cost and environmental pollution of lead-acid battery busbars have been solved, achieving a safe and efficient welding process that reduces energy consumption and improves welding quality.

CN120767436BActive Publication Date: 2026-06-16CHANGXING RONGLI MACHINERY
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Patent Information

Application Number
CN202510890745.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2026-06-16
Estimated Expiration
2045-06-30

AI Technical Summary

Technical Problem

Existing lead-acid battery busbar structures suffer from high costs, environmental pollution, weak welding, and safety hazards. Traditional welding methods are energy-intensive and inefficient.

Method used

It uses prefabricated non-lead metal strips with a low-melting-point brazing layer on the surface. It is welded to the electrode tabs at a temperature below the melting point of the non-lead metal by resistance or high-frequency induction heating. Uniform heating is achieved by heat conduction, heat convection or heat radiation, avoiding the compatibility problem of direct welding of dissimilar metals.

Benefits of technology

It enables safe and efficient bus welding, reduces production costs, minimizes environmental pollution, improves welding quality and efficiency, and avoids the generation of lead fumes and dust.

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Abstract

The application relates to a storage battery, a storage battery manufacturing method and a busbar forming process thereof, and comprises the following steps: S1, providing a plate group, a non-lead metal strip and a battery tank, installing the plate group in the battery tank to form a battery, and forming a lug cluster on the lug of the plate group, and the surface of the non-lead metal strip is provided with a solder; positioning the non-lead metal strip and the lug cluster; S2, using a resistance heating assembly to approach or contact the non-lead metal strip, or using a high-frequency induction heating assembly to heat the non-lead metal strip, then contacting the lug cluster and the non-lead metal strip, and melting the lug cluster and the solder, and after cooling, the lug cluster and the non-lead metal strip are welded together; S3, according to the series and parallel connection requirements of the battery, the non-lead metal strip welded with the lug cluster in the step S2 is cut, and the cut non-lead metal strip forms the final busbar of the storage battery. The process has high safety, the busbar is firmly welded, and the production cost of the storage battery is reduced.
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