High-energy density battery negative electrode tab and fabrication method thereof
A technology with high energy density and production method, which is applied in the field of high-polymer lithium-ion power batteries, can solve the problems of weak welding and difficult welding, and achieve the effects of firm and reliable welding, stable laser welding, and consistent metal components
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[0037] A high-energy-density battery negative tab, which sequentially includes a copper nickel-plated metal tab 3, a welding lap area 5, and an aluminum metal tab 4 for transfer, and a PP polymer is fixed on the copper nickel-plated tab 3 Propylene modified resin 1. like figure 2 shown. image 3 Schematic diagram of the cross-section of the welding overlap area, in image 3 Medium 6 laser welding melting point.
[0038] The manufacturing method of the above-mentioned negative electrode tab comprises the following steps:
[0039] 1) According to the width of the nickel-plated copper lug, select the aluminum material with the same width and cut it to the required length, and use the ZL-A metal sheet material fixed-length cutting machine to complete it;
[0040] 2) Position the nickel-plated copper lug with PP polypropylene modified resin on the mold, position the aluminum metal sheet on the nickel-plated copper, and overlap the aluminum metal sheet and the nickel-plated cop...
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