A kind of aluminum-plastic film for encapsulating lithium battery with oleophobic treatment on the surface and its preparation process

A preparation process and technology for lithium batteries, which are applied in small-sized batteries/battery packs, large-sized batteries/battery packs, battery pack components, etc. Pay attention to material drawing performance and other issues to achieve the effect of enhancing slipperiness

Active Publication Date: 2017-03-08
MING CROWN ADVANCED MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

For a long time, manufacturers of packaging aluminum-plastic films for lithium batteries have only paid attention to the deep-drawing performance of materials, and have not paid attention to the disadvantages of easy corrosion of the outer layer of aluminum-plastic films. Corrosion of the outer layer of the aluminum-plastic film reduces the overall barrier and dielectric coefficient of the battery, and also affects the appearance

Method used

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  • A kind of aluminum-plastic film for encapsulating lithium battery with oleophobic treatment on the surface and its preparation process

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Embodiment Construction

[0023] Attached below figure 1 The present invention is further described, and the protection scope of the present invention includes but is not limited thereto.

[0024] The Chinese names of materials represented by English letters in the present invention are as follows: CPP-casting polypropylene; BPO-benzoyl peroxide.

[0025] like figure 1 As shown, an aluminum-plastic film for encapsulating lithium batteries with an oleophobic treatment on the surface of the present invention includes a CPP layer 1, an inner adhesive layer 2, an aluminum foil layer 3, an outer adhesive layer 4, and a nylon layer arranged in sequence from the inside to the outside. layer 5 and an oleophobic protective layer 6, the oleophobic protective layer 6 includes a fluorine element modified coating, a silicon element modified coating or a fluorosilicon co-modified coating.

[0026] The coating thickness of the oleophobic protective layer 6 is 0.2 μm-2 μm, preferably 0.5 μm-1 μm.

[0027] The thick...

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Abstract

The invention relates to an aluminum-plastic film for lithium battery packaging with oleophobic treatment on the surface, comprising a CPP layer (1), an inner adhesive layer (2), an aluminum foil layer (3), and an outer adhesive layer arranged in sequence from the inside to the outside. Layer (4), nylon layer (5) and oleophobic protection layer (6), described oleophobic protection layer (6) comprises the coating of fluorine element modification, the coating of silicon element modification or fluorosilicon modification Sexual coating. The invention also provides a preparation process of an aluminum-plastic film for lithium battery packaging with oleophobic treatment on the surface. When the aluminum-plastic film is packaged and injected with electrolyte, it will not be corroded when in contact with accidentally dripped electrolyte, and the slipperiness of the outer surface of the film is enhanced.

Description

technical field [0001] The invention belongs to the field of lithium battery packaging production, and in particular relates to an aluminum-plastic film for lithium battery packaging with an oleophobic treatment on the surface and a preparation process thereof. Background technique [0002] Aluminum-plastic film for lithium battery packaging is used for battery packaging, which overcomes the long-term safety hazard caused by hard material packaging batteries: battery explosion caused by inflation. For a long time, manufacturers of packaging aluminum-plastic films for lithium batteries have only paid attention to the deep-drawing performance of materials, and have not paid attention to the disadvantages of easy corrosion of the outer layer of aluminum-plastic films. Corrosion of the outer layer of the aluminum-plastic film reduces the overall barrier and dielectric coefficient of the battery, and also affects the appearance. Contents of the invention [0003] In order to o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/02B32B15/082B32B15/088B32B15/20B32B27/06H01M50/124H01M50/129
CPCB32B15/082B32B15/088B32B15/20B32B27/06H01M50/10H01M50/116H01M50/124Y02E60/10
Inventor 张曙光唐春峰张鹏纪孝熹吴松方艳徐海燕
Owner MING CROWN ADVANCED MATERIAL CO LTD
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