A composite rolling method of battery tabs or conductive composite metal sheets between batteries

Abstract

The invention provides a composite rolling method for battery tabs or conductive composite metal sheets between batteries, which can well composite the battery tabs or conductive composite metal sheets between batteries with grooves on both sides, and improves the composite rolling process. Efficiency and yield, comprising the following steps: respectively opening grooves on one side surface of two metal strips with the same width and length as the base material of conductive composite metal sheets between tabs or batteries, and placing the metal strips Respectively inlaid in the grooves of two metal strips, the metal strips are cut to the same width as the grooves of the metal strips; apply lubrication to the contacting rolls on the sides of the two metal strips without grooves After oiling, the metal strip is sent to the compound rolling mill for compound rolling; the surfaces of the two strips that are in contact with the lubricating oil are cleaned separately, and then the cleaned surfaces of the two strips are relatively bonded and then sent to the rolling mill for compound rolling Formed into a piece of metal strip and rolled to the desired thickness.

Description

technical field [0001] The invention relates to the field of battery technology, and specifically relates to a composite rolling method for battery tabs or conductive composite metal sheets between batteries. Background technique [0002] The Chinese utility model patent with the publication number CN203932178U discloses a tab inside the battery or a conductive composite metal sheet between batteries, which has better spot weldability compared with pure metal tabs or conductive composite metal sheets between batteries ,See figure 1 The schematic diagram of the structure of the conductive composite metal sheet between the tabs or batteries in , the base material of the conductive composite metal sheet between the tabs or batteries is a metal strip 1, and grooves are respectively set on the front and back sides of the metal strip 1 3. There is another metal strip 2 compounded in the groove. When processing such a tab structure or a conductive composite metal sheet structure b...

AI Technical Summary

Problems solved by technology

[0002] The Chinese utility model patent with the publication number CN203932178U discloses a tab inside the battery or a conductive composite metal sheet between batteries, which has better spot weldability compared with pure metal tabs or conductive composite metal sheets between batteries ,See figure 1 The schematic diagram of the structure of the conductive composite metal sheet between the tabs or batteries in , the base material of the conductive composite metal sheet between the tabs or batteries is a metal strip 1, and grooves are respectively set on the front and back sides of the metal strip 1 3. There is another metal strip 2 compounded in the groove. When processing such a tab structure or a conductive composite metal sheet structure between batteries, the metal strip 2 on both sides is rolled and compounded on the metal strip by rollers. However, since the front and back sides of the metal strip 1 need to be grooved and then composite rolled metal strips, the metal strip 1 and the metal strip 2 are respectively different metals, and the composite rolling between different metals It is more difficult to process. Usually, oil is often added to lubricate during rolling to improve rolling efficiency. In addition, once the organic oil penetrates into the rolling gap during compound rolling, it cannot be compounded together. Such a structure is used in compound rolling The front and back sides of the metal strip cannot be lubricated and rolled with oil during production, which makes the rolling efficiency very low, and the reliability and yield are relatively low.

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