Secondary Insulation Method for Positive Pole of High-voltage Ni-MH Storage Battery

Abstract

The invention relates to a high-voltage nickel-hydrogen storage battery internal positive post secondary insulation method comprising the steps of fixing a lower transitional sleeve and a ceramic sleeve on a post rod through connecting pieces to assemble into a positive post, cleaning and wiping the positive post with acetone, coating HR-8747 high-temperature-resistant sealing insulation glue on the macroaxis surface of the post rod, the upper end face of the macroaxis, a bare part of the lower transitional sleeve, the bottom of a transitional ring, and a bare face of the ceramic sleeve between the transitional ring and the lower transitional sleeve, keeping warm for 2 hours to 3 hours at a temperature between 60 DEG C to 80 DEG C, and taking the positive post out after cooling to form the high-voltage nickel-hydrogen storage battery internal secondary insulation positive post. Before a post of a single battery is welded with a battery shell body, the surface of the positive post in the battery is coated by a layer of the HR-8747 high-temperature-resistant sealing insulation glue so as to form a secondary insulation of the positive post in the battery, to increase the insulation area if the surface of the positive post in the battery, to enlarge the insulation distance between an anode and a cathode of the battery, and to improve safety of the battery.

Description

technical field [0001] The invention belongs to the technical field of high-voltage nickel-hydrogen storage batteries, and in particular relates to a method for secondary insulation of a positive pole column inside a high-voltage nickel-hydrogen storage battery. Background technique [0002] High-voltage nickel-hydrogen batteries are mainly used in the aerospace field. As energy storage equipment for satellites and space stations, they ensure the working life of satellites with their high specific energy and long charge-discharge cycle life. At present, the positive pole of high-voltage nickel-hydrogen batteries is made of ceramic materials. Carry out primary insulation treatment. Based on the consideration of high sealing performance, the design value of the primary insulation distance is 1.5mm. The safety distance is relatively small, and the existence of excess metal will cause the internal short circuit of the battery, which will bring potential safety hazards to the batt...

AI Technical Summary

Problems solved by technology

[0002] High-voltage nickel-hydrogen batteries are mainly used in the aerospace field. As energy storage equipment for satellites and space stations, they ensure the working life of satellites with their high specific energy and long charge-discharge cycle life. At present, the positive pole of high-voltage nickel-hydrogen batteries is made of ceramic materials. Carry out a primary insulation treatment. Based on the consideration of high sealing performance, the design value of the primary insulation distance is 1.5mm. The safety distance is relatively small, and the existence of excess metal will cause the internal short circuit of the battery, which will bring potential safety hazards to the battery.

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