Method for manufacturing mercury-free and lead-free button battery

Abstract

The invention discloses a method for manufacturing a mercury-free and lead-free button battery. The method comprises the following steps of: manufacturing accessories, and preparing materials; combining a negative electrode cover, a seal ring, an isolation membrane and a lead integrally by utilizing a set of negative electrode combination device to obtain a negative electrode combination body, wherein the isolation membrane is arranged on the inner surface of the negative electrode cover, covers to an outer ring body of the negative electrode cover and is provided with an extension section, the extension section is beyond the top surface of the outer ring body, two ends of the lead are clamped between the isolation membrane and the seal ring, and connecting sections which are communicated with the negative electrode cover are reserved at two ends of the lead; and assembling the battery and sealing, wherein an exceeding part of the isolation membrane covers to the top surface of the outer ring body of the negative electrode cover, the connecting sections which are reserved at two ends of the lead are communicated with the negative electrode cover, and an intermediate part of the lead is straightened and is communicated with a negative electrode material to obtain the mercury-free and lead-free button battery. Compared with the prior art, the method has the advantages that: the products are convenient to machine, does not have pollution in the production process, and are high in leakage-proof performance and safety and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of chemical power supply and battery manufacturing, in particular to a method for manufacturing a mercury-free and lead-free button battery (including alkaline zinc-manganese button battery and silver oxide button battery). Background technique [0002] Please refer to figure 1 As shown, it shows the specific structure of the existing button cell, including negative electrode cover 10 ', positive electrode material 20 ', sealing ring 30 ', negative electrode material 40 ', positive electrode case 50 ' and for isolating the positive electrode material 20 'and the diaphragm 60' of the negative electrode material 40'; the positive electrode case 50' is fastened and connected with the negative electrode cover 10'; ' and the negative electrode cover 10' are separated from each other; the positive electrode material 20' is arranged on the inner bottom of the positive electrode case 50', the diaphragm 60' is arran...

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention aims at the shortcomings of the prior art, and its main purpose is to provide a method for manufacturing a mercury-free and lead-free button battery, which can effectively solve the problem of the existing mercury-free and lead-free button battery due to negative electrode Poor electroplating of the cover or serious safety hazards due to continuous discharge under heavy load

[0009] Another object of the present invention is to provide a method for manufacturing a mercury-free and lead-free button battery, which can effectively solve the problem caused by the need for the negative electrode cover to be indium-plated or tin-plated in the existing mercury-free and lead-free button battery. It is not environmentally friendly and increases the production cost of enterprises

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