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Soft package battery film sleeving process

A technology of soft-pack batteries and membranes, which is applied to battery components, circuits, electrical components, etc., can solve problems such as membrane skew, achieve good dimensional consistency, and increase energy density.

Active Publication Date: 2021-10-01
SPRINGPOWER TECHNOLOGY (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: aiming at the problem that the existing soft-pack battery coating process easily causes the coating to be skewed during the coating process, to provide a soft-pack battery coating process

Method used

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  • Soft package battery film sleeving process

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Embodiment Construction

[0031] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] Such as Figure 1-2 As shown, the pouch battery casing process provided by the embodiment of the present invention includes the following steps:

[0033] Step S10: Obtain the pouch battery 1 and the cover film 2; wherein, the cover film 2 can be a sheet material or a roll material, for example, when the cover film 2 is a roll material, one end of the cover film 2 is pulled out from the roll , can be pulled out manually or by machine, and then cut out the appropriate size of the mantle according to specific needs;

[0034] Step S20: Stretch the mantle 2;

[0035...

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Abstract

The invention belongs to the technical field of soft package batteries, and relates to a soft package battery film sleeving process. The process comprises the following steps: obtaining a soft package battery and a sleeve film; opening the sleeve film; keeping the sleeve film in an open state so as to accommodate the soft package battery; implanting the soft package battery into the sleeve film; preliminarily positioning the sleeve film on the soft package battery; and heating the sleeve film to enable the sleeve film to cover and tighten the periphery of the soft package battery. The sleeve film is preliminarily positioned on the soft package battery and then is heated so that the sleeve film wrapping and tightening the periphery of the soft package battery does not have the problems of deflection, wrinkles and non-uniform wrapping, and the soft package battery after being wrapped by the sleeve film is good in size consistency; and the problem of a short circuit between the skirt edge of the soft package battery and an external conductive substance caused by exposure of the skirt edge is avoided through the sleeve film, and after the sleeve film covers the periphery of the soft package battery, the sleeve film has a tightening effect on the opened skirt edge so that the energy density of the soft package battery is improved.

Description

technical field [0001] The invention belongs to the technical field of soft pack batteries, and in particular relates to a film covering process for soft pack batteries. Background technique [0002] Soft-pack batteries, because of their good safety performance (unlike steel-cased and aluminum-cased cells that will explode), light weight, etc., make them more and more widely used. [0003] Existing soft-pack batteries usually need to be covered with a film around them. For example, although the existing soft-pack button batteries are cylindrical, their skirts are irregular and open, and the aluminum metal leaks outside. If there is no film, it will The energy density is sacrificed, and if there is no coating, the contact between aluminum metal and external conductive substances will easily cause a short circuit. [0004] The traditional battery casing process is basically for regular square or cylindrical soft-pack batteries. The cells are directly implanted in the casing, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/244H01M50/202
CPCY02E60/10
Inventor 管永乐李升高胡大林周燕
Owner SPRINGPOWER TECHNOLOGY (SHENZHEN) CO LTD
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