Winder special for nickel zinc battery

Abstract

The invention relates to a winder special for a nickel zinc battery. A vertical plate is connected to a substrate fixedly; a feeding mechanism and a winding mechanism are arranged on the vertical plate; the winding mechanism comprises a winding needle, an upper pressing roll and a lower pressing roll; the winding needle is driven by a driving mechanism to rotate; the upper pressing roll and the lower pressing roll are arranged on upper and lower sides of the winding needle and driven by the respective driving mechanisms; the feeding mechanism is positioned on one side of the winding mechanismand comprises a positive discharge plate and a negative diaphragm discharge plate; the negative diaphragm discharge plate comprises a material supporting plate, a partition plate, a reference plate and a limiting plate; the partition plate and the reference plate are arranged on one longitudinal side of an upper surface of the material supporting plate sequentially; and the limiting plate is arranged on the other longitudinal side of the upper surface of the material supporting plate. In the winder special for the nickel zinc battery, the special negative diaphragm discharge plate is adopted,a negative piece and a diaphragm are placed in a layered mode, and relative positions cannot be changed; and the diaphragm covers the negative piece, so that cross contamination of the negative pieceand a positive piece can be avoided, powder cannot fall from the negative piece, and the quality of the battery is ensured.

Description

technical field [0001] The invention relates to manufacturing equipment for secondary nickel-zinc batteries, in particular to a special winding machine for winding battery cores of nickel-zinc batteries. Background technique [0002] Nickel-zinc battery is a brand-new secondary battery, which has the advantages of no pollution, light weight, low internal resistance, low self-discharge, high current discharge, long cycle life, wide temperature adaptability, etc. It can be widely used in electric tools and electric bicycles , electric vehicles and other fields, it can be used for solar and wind power generation and energy storage, and can provide mobile power for military equipment, medical equipment, transportation and communication, etc., and has a very broad market prospect. [0003] In the manufacturing process of cylindrical secondary batteries, a winding machine is required to stack the positive electrode sheet, separator and negative electrode sheet together to form a b...

AI Technical Summary

Problems solved by technology

Because the pole piece of nickel-zinc battery is very different from the existing nickel-cadmium battery, nickel-hydrogen battery and lithium battery, the powder on the negative pole piece is easy to fall off, but there is no special winding equipment, so only nickel-hydrogen battery can be used. The battery winding machine is temporarily replaced, and the quality of the wound battery core cannot be guaranteed

In addition, because the diaphragm is easy to slip and deform, as the winding diameter of the battery core increases, the pressure on the pole piece will increase, which may be crushed and aggravate the mid-term short circuit of the battery.

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