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Casing material for power storage device, production method therefor, and power storage device

A manufacturing method and accumulator technology, which can be applied to hybrid capacitor electrodes, electrical components, battery pack components, etc., and can solve problems such as difficulty in coping with diverse shapes and limitations in light weight

Pending Publication Date: 2021-06-04
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal exterior materials for energy storage devices that are widely used at present have the disadvantages that it is difficult to cope with the diversification of shapes, and there is a limit to the reduction in weight.

Method used

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  • Casing material for power storage device, production method therefor, and power storage device
  • Casing material for power storage device, production method therefor, and power storage device
  • Casing material for power storage device, production method therefor, and power storage device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example 1

[0188] As the base material layer, a polyethylene terephthalate (PET) film (thickness 12 μm) and a stretched nylon (ONy) film (thickness 15 μm) were prepared, and a two-component polyurethane adhesive ( polyol compound and aromatic isocyanate-based compound) (3 μm) to adhere to the ONy film. Moreover, as a barrier layer, aluminum foil (JIS H4160:1994A8021H-O (thickness 40 micrometers)) was prepared. Next, a two-component urethane adhesive (polyol compound and aromatic isocyanate compound) was applied on one surface of the aluminum foil, and an adhesive layer (thickness 3 μm) was formed on the barrier layer. Next, after laminating the adhesive layer on the barrier layer and the base layer (ONy film side) by a dry lamination method, an aging treatment is performed to produce a laminate of the base layer / adhesive layer / barrier layer layer body. Both sides of the aluminum foil are chemically surface-treated. The chemical surface treatment of the aluminum foil was carried out by...

Embodiment 2 and comparative example 2

[0191]As the base material layer, a polyethylene terephthalate (PET) film (thickness 12 μm) and a stretched nylon (ONy) film (thickness 15 μm) were prepared, and a two-component polyurethane adhesive ( polyol compound and aromatic isocyanate-based compound) (3 μm) to adhere to the ONy film. Moreover, as a barrier layer, aluminum foil (JIS H4160:1994A8021H-O (thickness 40 micrometers)) was prepared. Next, a two-component urethane adhesive (polyol compound and aromatic isocyanate compound) was applied on one surface of the aluminum foil, and an adhesive layer (thickness 3 μm) was formed on the barrier layer. Next, after laminating the adhesive layer on the barrier layer and the base layer (ONy film side) by a dry lamination method, an aging treatment is performed to produce a laminate of the base layer / adhesive layer / barrier layer layer body. Both sides of the aluminum foil are chemically surface-treated. The chemical surface treatment of the aluminum foil was carried out by ...

Embodiment 3

[0194] As the base material layer, instead of the laminate of a polyethylene terephthalate (PET) film (thickness 12 μm) and a stretched nylon (ONy) film (thickness 15 μm), polyethylene terephthalate was used (PET) film (thickness: 25 μm), except that it was carried out in the same manner as in Example 1 to obtain base material layer (thickness: 25 μm) / adhesive layer (3 μm) / barrier layer (40 μm) / adhesive layer (20 μm) / The exterior material for electrical storage devices in which the 2nd heat-fusible resin layer (50 micrometers) / the 1st heat-fusible resin layer (10 micrometers) were laminated|stacked in this order.

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Abstract

A casing material for a power storage device, comprising a laminate that comprises, in order, at least a base material layer, a barrier layer, and a heat-fusible resin layer. The heat-fusible resin layer comprises a single layer or a plurality of layers. A first heat-fusible resin layer, among the heat-fusible resin layers, that constitutes the surface of the laminate has a logarithmic decrement delta E of no more than 0.20 in a rigid body pendulum measurement at 140 DEG C.

Description

technical field [0001] The present invention relates to an exterior material for an electrical storage device, a method for producing the same, and an electrical storage device. Background technique [0002] In the related art, various types of electrical storage devices have been developed, and in all electrical storage devices, a packaging material is an indispensable component in order to encapsulate electrical storage device elements such as electrodes and electrolytes. Conventionally, metal packaging materials are often used as exterior materials for electrical storage devices. [0003] On the other hand, as electric vehicles, hybrid electric vehicles, personal computers, cameras, mobile phones, etc. have increased in performance in recent years, various shapes of power storage devices have been required, and thinning and weight reduction have also been demanded. However, metal-made exterior materials for electrical storage devices, which are widely used at present, ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/78H01M50/10
CPCH01G11/78Y02E60/10H01G11/80H01M50/1243H01M50/126Y02T10/70Y02T10/62H01G11/30H01G11/82
Inventor 安田大佑山下孝典
Owner DAI NIPPON PRINTING CO LTD
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