A kind of soft package lithium-ion battery shape injection molding device and using method thereof

Abstract

The invention provides a soft package lithium-ion battery shape injection molding device, comprising a fixture, a lower cover and an upper cover, wherein a square structure with openings at two ends is adopted as the fixture; the inner side of the top part and the inner side of the bottom part of the fixture are hermetically matched with the upper cover and the lower cover respectively; a base is sleeved outside the bottom part of the fixture; a handle is arranged on the top part of the upper cover; two ends of the bottom part of the upper cover are provided with corner pads; a glue injection hole and a polar lug hole are also formed in the upper cover; a support pillar is arranged on the top part of the lower cover; the materials of the fixture, the lower cover and the upper cover are all die steels; the material of the base is rubber; in use, de-molding agent is evenly sprayed to the bottom part of the upper cover, the inner wall of the fixture and the top part of the lower cover firstly, and drying; then assembling the upper cover, the fixture and the lower cover; and then injecting glue into the injection molding device and curing the injected glue; finally, disassembling the upper cover, the fixture and the lower cover. Due to the adoption of the device, the shape of the monomer battery is completely protected, the regular shape of the injected monomer battery is guaranteed, and furthermore the service life of the injection molding device is prolonged.

Description

technical field [0001] The invention belongs to the field of lithium-ion batteries, and relates to a shape injection molding device for a soft-packed lithium-ion battery and a method for using the same. It is particularly suitable for completely protecting the shape of a single battery, ensuring the regular shape of the single battery after injection molding, and prolonging the use of the injection molding device. life. Background technique [0002] At present, most lithium-ion power batteries use hard-packed shells, such as aluminum shells, steel shells, plastic shells, etc. Hard-packed shells have certain mechanical strength, so they will significantly affect the volume energy density, mass energy density and safety of the battery. At the same time, the cost of the hard packaging shell is high, especially the plastic shell will have the risk of aging and cracking. However, the soft-packed lithium-ion battery shell is made of aluminum-plastic composite film packaging mater...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems that the shape injection molding device in the prior art cannot completely protect the shape of the single battery, cannot guarantee the regular shape of the single battery after injection molding, and cannot be reused, and provides a battery that can not only completely protect the shape of the battery 1. A soft-pack lithium-ion battery shape injection molding device and its use method that ensure the shape of the single battery after injection molding and can be reused

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