Foam nickel with ultra-low surface density and high aperture ratio and manufacturing method thereof

The invention relates to a manufacturing method for foam nickel and particularly discloses foam nickel with ultra-low surface density and high aperture ratio and the manufacturing method for the foam nickel. The manufacturing method for the foam nickel with ultra-low surface density and high aperture ratio comprises the processes of substrate conductive treatment, electro-deposition nickel plating and thermal treatment under a hydrogen atmosphere by using polyurethane foam as a substrate and is characterized by adding a polyurethane foam hole type combing process before substrate conductive treatment. The manufacturing method has the beneficial effects: as the hole type combing process is added before the conductive treatment of the polyurethane foam, the original structures of hole types of the foam are changed, the aperture ratio of the foam is increased, the difference between the lengthwise direction and the transverse direction is eliminated, the physical performances of the foam nickel manufactured by using the foam as the substrate are obviously improved while the surface density of the foam nickel is reduced, and the manufactured foam nickel is suitable for high-end products for promoting the performances of batteries and low-end products for reducing material cost, and can be used for manufacturing power batteries with high power capacity.