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A kind of packaging material of electrochemical battery, battery using the packaging material and preparation method thereof

A packaging material and battery packaging technology, applied in the field of electrochemical cells, can solve the problems of being easily damaged, the performance of flexible batteries is deteriorated, etc., and achieve the effects of improving energy density, low manufacturing cost, and good flexibility performance.

Active Publication Date: 2018-02-23
GUANGDONG ZHUGUANG NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the bending process of flexible batteries, the interface inside the battery cell is often its weak link and is easily damaged, which makes the performance of the flexible battery worse; therefore, reducing the number of internal interfaces of the flexible battery as much as possible is a reliable way to improve the performance of the flexible battery. method

Method used

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  • A kind of packaging material of electrochemical battery, battery using the packaging material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of pretreated base material: Select two pieces of aluminum foil with the same size and a thickness of 20 μm, heat them to 125°C, and then apply a layer of hot melt adhesive with a melting point of 120°C on one side of one of the aluminum foils, and then put the two pieces of aluminum foil together After alignment, glue them together and cool to room temperature for use;

[0037] Packaging auxiliary layer treatment: prepare chromium-containing treatment liquid and put it in a container, pass the above-mentioned two layers of aluminum foil bonded together through the container containing the chromium liquid by way of tape, and perform packaging auxiliary treatment on the surface of the aluminum foil to obtain the thickness of the treatment layer The encapsulation auxiliary layer with a thickness of 10nm and an adhesion force of 30N / 8mm is washed with deionized water to obtain two substrates bonded together, and only the non-adhesive surface has undergone encaps...

Embodiment 2

[0042] The difference from Example 1 is that it includes the following steps:

[0043] Preparation of the pretreated substrate material: select two pieces of aluminum foil with the same size and a thickness of 8 μm, heat them to 125°C, and then apply a layer of hot melt adhesive with a melting point of 120°C on one side of one of the aluminum foils, and then put the two pieces of aluminum foil together After alignment, glue them together and cool to room temperature for use;

[0044] The rest are the same as in Embodiment 1 and will not be repeated here.

Embodiment 3

[0046] The difference from Example 1 is that it includes the following steps:

[0047] Preparation of pretreated base material: Select two pieces of aluminum foil with the same size and a thickness of 30 μm, heat them to 125°C, and then apply a layer of hot melt adhesive with a melting point of 120°C on one side of one of the aluminum foils, and then put the two pieces of aluminum foil together After alignment, glue them together and cool to room temperature for use;

[0048] The rest are the same as in Embodiment 1 and will not be repeated here.

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Abstract

The invention belongs to the technical field of flexible devices, and in particular relates to an electrochemical battery packaging material, which includes a base layer and a packaging auxiliary layer, and the packaging auxiliary layer is distributed on only one surface of the base layer, and the packaging auxiliary layer The adhesion of the layer on the base layer is F, F≥5N / 8mm; the base layer contains metal components and has no hole structure, and the thickness is greater than or equal to 8 μm; the thickness of the packaging auxiliary layer is less than or equal to 8 μm . Since only one surface of the battery packaging material of the present invention has undergone packaging auxiliary treatment, it can reduce the amount of treatment liquid, improve the treatment efficiency, and greatly reduce the cost of the material; at the same time, it can meet the needs of practical applications: because the actual packaging , only the sealing area located on one side of the current collector needs to be packaged and assisted to solve the package reliability problem.

Description

technical field [0001] The invention belongs to the technical field of electrochemical batteries, in particular to an electrochemical battery packaging material, a battery using the packaging material 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 grow. The above high-tech products have a common feature: high-performance, low-cost batteries are required to act as energy storage components. [0003] Existing batteries mainly include primary batteries and secondary batteries; the so-called primary batteries, that is, batteries that cannot be recharged, mainly include carbon-zinc batteries, alkaline batteries, paste-type zinc-manga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/02H01M2/08H01M50/231H01M50/528H01M50/534
CPCH01M50/116H01M50/124H01M50/183Y02E60/10
Inventor 杨玉洁
Owner GUANGDONG ZHUGUANG NEW ENERGY TECH