Metal housing structure of battery and insulating treatment method for metal housing structure

Abstract

The invention provides a metal housing structure of a battery and an insulating treatment method for the metal housing structure. The insulating treatment method comprises the following steps: coating the edges and the welded parts of a metal housing of the battery with an ultraviolet (UV) adhesive or UV paint, and carrying out solidification treatment through a UV machine; and coating various surfaces of the metal housing of the battery with the UV adhesive or the UV paint, and carrying out solidification treatment through the UV machine. According to the metal housing structure of the battery and the insulating treatment method for the metal housing structure provided by the invention, the production efficiency of the battery can be greatly improved; and good insulating property of the metal housing of the battery can be ensured.

Description

technical field [0001] The invention relates to a battery insulation treatment technology, in particular to a battery metal casing structure and an insulation treatment method thereof. Background technique [0002] In the prior art, an insulating film is generally used to coat the metal shell of the battery for insulation treatment, which generally has the following disadvantages: 1. Manual or mechanical coating of the film is inefficient and cannot be automated. 2. The utilization rate of the film is low, and the appearance is not easy to control, which affects the battery assembly. 3. The film has no adhesion to the metal casing of the battery, and must be glued to bond to the metal casing of the battery. However, due to the low bonding strength, it is easy to fall off, and the glue is not resistant to lithium-ion electrolyte, which may easily cause the metal of the battery The insulation performance of the casing is reduced. In addition, there are some methods of coatin...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the metal casing of the battery is generally insulated with an insulating film, which generally has the following disadvantages: 1. Manual or mechanical coating of the film is inefficient and cannot be automated.

2. The utilization rate of the film is low, and the appearance is not easy to control, which affects the battery assembly

3. The film has no adhesion to the metal shell of the battery, and it must be glued to bond to the metal shell of the battery. However, due to the low bonding strength, it is easy to fall off, and the glue is not resistant to lithium-ion electrolyte, which is easy to cause the battery's metal The insulation performance of the shell is reduced

In addition, there are some methods of coating the metal shell of the battery to insulate the metal shell. Because the bottom corners of the metal shell of the battery and the corners of the top welding are relatively sharp, ordinary paint coating methods cannot ensure that the corners are adequate. Insulation coating, insulation performance can not meet the requirements

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