Zinc-manganese dry battery with improved structure and preparation process of zinc-manganese dry battery

Abstract

The invention relates to the technical field of dry batteries, and in particular relates to a zinc-manganese dry battery with an improved structure and a preparation process of the zinc-manganese dry battery. The zinc-manganese dry battery comprises a zinc cylinder, pulp paper, a base, a positive electrode material, an isolation sheet, a carbon bar, a sealing unit, a positive electrode cap and a cover, wherein the sealing unit is a sealing ring; the sealing ring comprises a central column, a peripheral part and a connecting sheet; the central column is arranged in the center of the sealing ring; the peripheral part is arranged at the edge of the sealing ring; the connecting sheet is connected with the central column and the peripheral part; a through hole through which the carbon bar penetrates is formed in the central column; and the lower end of the through hole is gradually expanded outwards. The lower end of the through hole is gradually expanded outwards, so that the size of the lower part of the through hole is slightly greater than that of the upper part of the through hole, providing coating space in the through hole for a sealant, the carbon bar can be well aligned with the through hole during penetration, is convenient to install, and can be prevented from being scratched when being aligned with the through hole and penetrating through the through hole, so that assembling is facilitated. According to the preparation process, the production process is simplified, and the production cost and the labor cost are reduced.

Description

technical field [0001] The invention relates to the technical field of dry batteries, in particular to a structure-improved zinc-manganese dry battery and a preparation process thereof. Background technique [0002] With the development of science and technology, carbon batteries have developed into a large family. So far, there are many kinds, and the common ones are ordinary zinc-manganese dry batteries. Zinc-manganese dry battery belongs to the primary battery in the chemical power source. It is a disposable battery. It is composed of positive electrode materials containing electrolyte, zinc cylinder, copper cap, carbon rod and other battery parts. There is a cover on the zinc cylinder and a Negative electrode iron bottom, carbon rod inserted in the positive electrode material, copper cap on the carbon rod, pulp and paper isolation layer between the positive electrode material and the zinc cylinder, a pot-shaped paper pad at the bottom of the zinc cylinder, and a Paper p...

AI Technical Summary

Problems solved by technology

However, asphalt is greatly affected by temperature and is easy to age. Therefore, using asphalt as a sealing material will greatly reduce the sealing performance of the battery, and when the battery is stored, there will be phenomena such as electro-hydraulic loss and slurry paper crystallization, which will make the The capacity of the battery decreases and the discharge time shortens, which affects the service life of the battery. Therefore, the quality of the seal plays a key role in the quality of the zinc-manganese dry battery.

[0003] In addition, in the production process of batteries with asphalt as the sealing layer, before casting the asphalt sealant, it is necessary to lay a layer of wax paper cover as the attachment support of the asphalt. Manual operation is required in this process. At the same time, the wax paper cover The preparation of punching and sealing agent requires a lot of manual operation, and the material cost and labor cost are relatively large.

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