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External packing material used for lithium ion battery

A lithium-ion battery and outer packaging technology, applied in the direction of battery box/cover material, battery box/jacket, packaging, etc., to achieve the effect of excellent printing adaptability

Active Publication Date: 2015-03-18
TOPPAN PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still room for improvement in the printing suitability of the outer packaging material of Patent Document 5.

Method used

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  • External packing material used for lithium ion battery
  • External packing material used for lithium ion battery
  • External packing material used for lithium ion battery

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0053] figure 1 It is a schematic sectional view showing the outer packaging material 1 according to the first embodiment of the present invention.

[0054] The outer packaging material 1 is composed of a laminated body formed by sequentially laminating a first adhesive layer 12, an aluminum foil layer 13, an adhesive resin layer 15, and a sealant layer 16 on one surface of a base material layer 11, and the An anticorrosion treatment layer 14 is provided on the surface of the aluminum foil layer 13 on the side of the sealant layer 16 .

[0055] The outer cover material 1 is printed on the surface of the base material layer 11 opposite to the first adhesive layer 12 side, that is, the surface 1 a of the outer cover material 1 on the base material layer 11 side. When a droplet of the ink solvent contained in the printing ink is attached to the surface 1a, the contact angle after 5 seconds is 10° to 30°, and the time change (5 seconds) of the contact angle is 6° or less.

[005...

no. 2 approach

[0220] Next, a second embodiment of the packaging material of the present invention will be described. In addition, in the embodiment shown below, the same code|symbol is attached|subjected to the component corresponding to 1st Embodiment, and the detailed description is abbreviate|omitted.

[0221] figure 2 It is a schematic sectional view showing the outer packaging material 2 according to the second embodiment of the present invention.

[0222] The outer packaging material 2 is composed of a laminated body in which a first adhesive layer 12, an aluminum foil layer 13, a second adhesive layer 25, and a sealant layer 16 are sequentially laminated on one surface of a base material layer 11, and An anticorrosion treatment layer 14 is provided on the surface of the aluminum foil layer 13 on the side of the sealant layer 16 .

[0223] The exterior material 2 is printed on the surface of the base layer 11 opposite to the first adhesive layer 12 side, that is, the surface 2 a of...

no. 3 approach

[0251] Next, a third embodiment of the packaging material of the present invention will be described.

[0252] image 3 It is a schematic sectional view showing the outer packaging material 3 according to the third embodiment of the present invention.

[0253] The outer packaging material 3 is composed of a laminated body in which a first adhesive layer 12, an aluminum foil layer 13, a second adhesive layer 25, and a sealant layer 16 are sequentially laminated on one surface of a base material layer 11, and The surface treatment layer 31 is provided on the base material layer 11 side surface of the aluminum foil layer 13 , and the anticorrosion treatment layer 14 is provided on the sealant layer 16 side surface.

[0254] The outer wrapping material 3 is printed on the surface of the base material layer 11 opposite to the first adhesive layer 12 side, that is, the surface 3 a of the outer wrapping material 1 on the base material layer 11 side. When a droplet of the ink solven...

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Abstract

The invention provides an external packing material used for a lithium ion battery. The external packing material is formed by at least a base material layer stacked in sequence, a first adhesive layer, an aluminum foil layer providing with an anti-corrosion treatment layer on at least a single surface, an adhesive resin layer or a second adhesive layer, and a stacking body formed by a sealant layer. The surface of the side of the base material layer is applied by printing. When drops containing an ink solvent in ink used in the printing are attached to the surface of the side of the base material layer, after 5 seconds beginning from the attachment of the drops, a contact angle is more than 10 DEG and lower than 30 DEG. The variation of the contact angle in 5 seconds beginning from the attachment of the drops is lower than 6 DEG.

Description

technical field [0001] The invention relates to an outer packaging material for a lithium ion battery. Background technique [0002] At present, as a secondary battery used in daily life in portable terminal devices such as personal computers and mobile phones, and video cameras, lithium-ion batteries that have high energy and can be made ultra-thin and miniaturized are being actively researched. In development. [0003] As an outer packaging material for lithium-ion batteries, a laminated film with a multilayer structure (for example, a heat-resistant The structure of substrate layer / aluminum foil layer / sealant (hot-melt film) layer, etc.). In addition, from the viewpoint of not only a high degree of freedom in battery shape, but also light weight, high heat dissipation, and low cost, attempts have been made to apply the outer packaging materials using the above-mentioned laminated film to applications that have developed significantly in recent years and have a small env...

Claims

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Application Information

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IPC IPC(8): H01M2/02B32B15/04B32B15/20B32B9/04B32B7/12B65D65/40C09D11/36
CPCB32B7/12B32B9/041B32B15/20H01M50/116H01M50/124Y02E60/10
Inventor 村木拓也铃田昌由
Owner TOPPAN PRINTING CO LTD
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