Preparation method of nickel hydride battery and nickel hydride battery product

Abstract

The invention discloses a preparation method of a nickel hydride battery. The preparation method is characterized by comprising the following steps: (1) preparing a cylindrical shell with an opening at the top end and a battery core; (2) coating the inner wall of the opening of the cylindrical shell with an insulating wet film; (3) installing the battery core into the shell, pitting at the insulating coating by a pitting machine, fixing the battery core, adding electrolyte, uniformly redistributing the insulating wet film coating on the inner wall of the deformed shell at the moment, and further curing to form a dense insulating wet film layer; (4) preparing a battery top cover, fixing the battery top cover to obtain the nickel hydride battery. The invention further provides a nickel hydride battery product prepared by the preparation method. The nickel hydride battery product comprises the cylindrical shell and the battery core; the inner wall of the opening of the cylindrical shell is coated with the insulating coating. An insulating meson is not required to be added additionally, so that preparation processes and components of the battery are reduced, the production efficiency and the product quality of the battery are improved and the production cost of the battery is reduced.

Description

technical field [0001] The invention relates to the field of battery manufacturing, in particular to a method for preparing a nickel-hydrogen battery and a nickel-hydrogen battery product prepared by the method. Background technique [0002] In modern life, all kinds of batteries are indispensable in people's lives. As a high-energy green rechargeable battery that is rapidly developing today, nickel-metal hydride batteries have the advantages of high energy density, fast charge and discharge, long cycle life and no pollution. It has been widely used in fields such as notebook computers, camcorders, digital cameras and electric bicycles. [0003] In the process of battery production, the battery is often zero-charged due to the contact between the car pit and the battery cell, and the manufactured battery cannot be discharged, resulting in a high battery scrap rate and greatly increasing the production cost. Insulators are filled between the positive electrode of the battery...

AI Technical Summary

Problems solved by technology

[0003] In the process of battery production, the battery is often zero-charged due to the contact between the car pit and the battery cell, and the manufactured battery cannot be discharged, resulting in a high battery scrap rate and greatly increasing the production cost. Insulators are filled between the positive electrode of the battery and the top cover of the battery to prevent the car pit from contacting the battery cells, and the insulators have poor alkali resistance. After a long time of use, the insulators will be corroded, and the battery will appear zero.

[0004] At the same time, because most of the existing insulating mesons are solid PC and PP adhesive films, they need to be prepared separately, and at least two additional processes are required to set them at the predetermined position; Poor, the bonding fastness to the inner surface of the metal shell is not high, it is easy to cause falling off or abrasion in the subsequent processes such as car pits, charging batteries, etc., and the insulation reliability is not high

Images