Packaging film for electrochemical battery and manufacturing method thereof

An electrochemical and packaging film technology, applied in battery pack parts, circuits, electrical components, etc., can solve the problems of low peel strength and deep drawing performance, inconvenient identification and storage management, affecting the normal use of batteries, etc. Identification and storage management, to achieve the effect of appearance differentiation, peel strength and deep drawing performance improvement

Inactive Publication Date: 2019-03-29
SHANGHAI ENERGY NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a packaging film for electrochemical cells and a preparation method thereof, which is used to solve the problem of peel strength and deep drawing performance of packaging films for electrochemical cells in the prior art. Low, affecting the normal use of the battery, and the existing packaging film for electrochemical batteries has no color, and the appearance looks like a monotonous metallic color, which is not easy to identify and store and manage.

Method used

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  • Packaging film for electrochemical battery and manufacturing method thereof
  • Packaging film for electrochemical battery and manufacturing method thereof
  • Packaging film for electrochemical battery and manufacturing method thereof

Examples

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preparation example Construction

[0059] Such as figure 1 and image 3 Shown, the present invention also provides a kind of preparation method of packaging film for electrochemical cell, utilize described preparation method to prepare above-mentioned packaging film for electrochemical cell, the performance of the packaging film for electrochemical cell that described preparation method makes, For the parameters, refer to the aforementioned examples, which will not be repeated here, and only the preparation method will be described. Described preparation side comprises:

[0060] S1, laminating the protective layer 3 added with organic pigments on the outer side of the metal layer 1, wherein the protective layer 3 includes polymer coatings 31, 32 and an adhesive layer 33 bonded sequentially from outside to inside;

[0061] S2, laminating the heat-sealing layer 2 on the inner side of the metal layer 1 .

[0062] As an example, the lamination method in step S1 includes a dry coating method; the lamination metho...

Embodiment 1

[0069] Such as figure 1 As shown, the packaging film for electrochemical cells described in this embodiment includes from the outside to the inside: a polymer coating 31 added with organic pigments, a transparent high-temperature-resistant polyester or polyamide film layer 32, a transparent A high temperature resistant adhesive layer 33 , a metal layer 1 and a transparent hot-melt polypropylene film layer 2 . Among them, the polymer coating 31 is a color layer, the high temperature resistant polyester or polyamide film layer 32, the high temperature resistant adhesive layer 33 and the hot melt polypropylene film layer 2 are all transparent layers.

[0070] Described high-temperature-resistant type polyester or polyamide film layer 32 is for example selected the 25um thick biaxially oriented polyamide film (BOPA) of Japan Xingren Company, and described metal layer 1 selects the 40um of Japanese Toyo Aluminum Co., Ltd. Thick O state soft aluminum foil, described hot-melt type p...

Embodiment 2

[0074] Such as figure 1 As shown, the electrochemical cell packaging film described in this embodiment includes from the outside to the inside: a polymer coating 31, a high-temperature resistant polyester or polyamide film layer 32 added with organic pigments, a transparent high-temperature resistant Adhesive layer 33 , metal layer 1 and transparent hot-melt polypropylene film layer 2 . Among them, the high-temperature-resistant polyester or polyamide film layer 32 added with organic pigments is the color layer, and the polymer coating 31, the high-temperature-resistant adhesive layer 33 and the hot-melt polypropylene film layer 2 are all transparent layers. .

[0075] Described high-temperature-resistant type polyester or polyamide film layer 32 is for example selected the 25um thick biaxially oriented polyamide film (BOPA) of Japan Xingren Company, and described metal layer 1 selects the 40um of Japanese Toyo Aluminum Co., Ltd. Thick O state soft aluminum foil, described h...

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Abstract

The invention provides a packaging film for an electrochemical battery and a manufacturing method thereof. The packaging film comprises: a protective layer added with an organic pigment, a metal layerand a heat sealing layer in sequence. The protective layer comprises a polymer coating and a film layer, and an adhesive layer in order from outside to inside. The protective layer is added with theorganic pigment, and the protective layer added with the organic pigment can enhance lamination strength between the protective layer and the metal layer, thereby improving peeling strength and deep drawing molding property of the packaging film, and ensuring normal use of an electrochemical battery. In addition, by adding the organic pigment, monotonous metallic color of an existing packaging film can be changed, and appearance of the packaging film can be differentiated, thereby facilitating identification and storage management. Finally, raw materials of the organic pigment are derived fromnatural animals and plants, and have natural environmental protection characteristics. Therefore, the packaging film for an electrochemical battery to which an organic pigment is added is more environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of electrochemical battery packaging materials, in particular to a packaging film for electrochemical batteries and a preparation method thereof. Background technique [0002] After entering the 21st century, various electronic device products such as mobile phones, notebooks, wearable devices, etc. emerge in an endless stream, which greatly enriches the lives of the majority of users; at the same time, electric vehicles and various energy storage power stations are also rapidly sprouting, developing, and The above-mentioned high-tech products have a common feature: high-performance, low-cost batteries are required to act as energy storage components. [0003] An electrochemical cell is a device capable of providing electrical energy through an electrochemical reaction, typically between two or more reactants. In general, an electrochemical cell includes two electrodes called an anode and a cathode, and an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M50/124
CPCH01M50/124Y02E60/10
Inventor 程跃田俊斌仲松华王小明贾江恒陈滨张文豪
Owner SHANGHAI ENERGY NEW MATERIALS TECH CO LTD
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