Zinc-nickel secondary sealed cylindrical alkaline battery adopting nickel-plated shell as negative electrode and manufacturing method thereof

Abstract

The invention relates to a zinc-nickel secondary sealed cylindrical alkaline battery adopting a nickel-plated shell as a negative electrode, and the zinc-nickel secondary sealed cylindrical alkaline battery comprises a nickel-plated shell, a sealing ring and a nickel-plated cap, wherein an electrode assembly which is arranged in the nickel-plated shell consists of a lug negative plate with a negative electrode, a diaphragm and copper foil or tinned copper foil sticker and a lug positive plate with a positive electrode, a diaphragm is arranged between the lug negative plate with the negative electrode and the lug positive plate with the positive electrode, and the zinc-nickel secondary sealed cylindrical alkaline battery is characterized in that firstly a tinned copper-strip stretch net, a tinned brass-strip stretch net or a zinc-strip stretch net is used as a negative electrode current collector, so that compared with a perforated negative electrode current collector, the zinc-nickel secondary sealed cylindrical alkaline battery has the advantages that the utilization rate of materials can be doubled; and secondly, one copper foil or tinned copper foil surface in the diaphragm and copper foil or tinned copper foil sticker is contacted with and wraps the lug negative plate with the negative electrode on the outer circle of the electrode assembly, the other surface is closely contacted with the inner wall of the nickel-plated shell, and a negative lug on the negative electrode end of the electrode assembly is in spot welding connection with a negative gasket which is welded on the bottom of the nickel-plated shell. The invention also provides a manufacturing method of the battery. The zinc-nickel secondary sealed cylindrical alkaline battery has the advantages of more reasonable structure, excellent electric performance, longer service life and higher production efficiency.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a zinc-nickel secondary sealed cylindrical alkaline battery with a nickel-plated shell as the negative electrode and a manufacturing method thereof. Background technique [0002] The nickel-plated shell is a zinc-nickel secondary sealed cylindrical series alkaline battery with a negative electrode. The original design of the battery pole group is covered with plastic tape to insulate and isolate the shell. The negative end is welded to the negative collector plate connected to the shell bottom by spot welding through the negative pole On the top, that is, the electrical connection is realized on the copper gasket. The defect of this structure is that the plastic tape outside the battery electrode group limits the increase in battery capacity, and the negative electrode lug is welded to the copper gasket connected to the bottom of the case by spot welding. The connection area is...

AI Technical Summary

Problems solved by technology

[0002] The nickel-plated shell is a zinc-nickel secondary sealed cylindrical series alkaline battery with a negative electrode. The original design of the battery pole group is covered with plastic tape to insulate and isolate the shell. On the top, that is, the electrical connection is realized on the copper gasket. The defect of this structure is that the plastic tape outside the battery electrode group limits the increase in battery capacity, and the negative electrode lug is welded to the copper gasket connected to the bottom of the case by spot welding. The connection area is small, which affects the rate discharge performance

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