An outer packaging casing for an electricity storage device and a method of manufacturing the same

A technology for electrical storage equipment and outer packaging, which is applied to battery boxes/jackets, circuits, electrical components, etc. It can solve the problems of easy peeling off of the tape and the inability to fully obtain the adhesiveness of the tape, etc., and achieves the effect of a good molding state

Pending Publication Date: 2020-04-24
乐索纳克包装股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, in order to prevent the battery from coming into contact with other electronic circuits, adhesive tape was attached to the outer surface of the battery packaging material to fix it. However, there was a problem that there was a lubricant on the outer surface of the packaging material, and the adhesion of the tape could not be sufficiently obtained. Adhesion (the tape is easy to peel off)

Method used

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  • An outer packaging casing for an electricity storage device and a method of manufacturing the same
  • An outer packaging casing for an electricity storage device and a method of manufacturing the same
  • An outer packaging casing for an electricity storage device and a method of manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] A chemical conversion treatment solution containing phosphoric acid, polyacrylic acid (acrylic resin), chromium (III) salt compound, water, and alcohol is applied to both sides of an aluminum foil 4 with a thickness of 40 μm, and then dried at 180° C. to form a chemical conversion coating . The amount of chromium attached to the chemical conversion coating is 10mg / m per side 2 .

[0080]Next, a biaxially stretched nylon 6 film 2 with a thickness of 25 μm is dry-laminated (laminated) on the above-mentioned chemical conversion treated film through a two-component curing type urethane adhesive layer 5 . 4 sides of aluminum foil.

[0081] Next, the first unstretched film (which contains ethylene-propylene random copolymer, 1000ppm of behenamide and 3000ppm of silica particles (anti-blocking agent)) with a thickness of 4.5 μm and a thickness of A 21 μm second unstretched film (containing an ethylene-propylene block copolymer and 1000 ppm of erucamide), a 4.5 μm-thick firs...

Embodiment 2

[0084] As the sealing film 3, a first unstretched film (which contains an ethylene-propylene random copolymer, 2000 ppm of behenamide and 3000 ppm of silica particles (antiblocking agent)) having a thickness of 4.5 μm, A second unstretched film with a thickness of 21 μm (containing an ethylene-propylene block copolymer and 2000 ppm of erucamide), a first unstretched film with a thickness of 4.5 μm (containing an ethylene-propylene random copolymer material, 2000ppm of behenamide and 3000ppm of silica particles (anti-blocking agent)) sequentially laminated in three layers, co-extruded using a T-die to obtain a sealing film 3, using this sealing film 3, except Otherwise, it was operated in the same manner as in Example 1 to obtain figure 2 The illustrated outer casing 10 for an electrical storage device.

Embodiment 3

[0086] As the sealing film 3, a first unstretched film (which contains ethylene-propylene random copolymer, 5000 ppm of behenamide and 3000 ppm of silica particles (anti-blocking agent)) having a thickness of 4.5 μm, A second unstretched film with a thickness of 21 μm (containing ethylene-propylene block copolymer and 5000 ppm of erucamide), a first unstretched film with a thickness of 4.5 μm (containing ethylene-propylene random copolymer material, 5000ppm of behenamide and 3000ppm of silica particles (anti-blocking agent)) sequentially laminated in three layers, co-extruded using a T-die to obtain a sealing film 3, using this sealing film 3 and performing Flame treatment (flame treatment, Flame Treatment) instead of corona treatment, except that, operate in the same way as in Example 1 to obtain figure 2 The illustrated outer casing 10 for an electrical storage device.

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Abstract

The invention relates to an outer packaging casing for an electricity storage device and a method of manufacturing the same. The outer packaging casing (10) is formed by a molded casing of an outer casing material (1). The outer casing material (1) includes a heat-resistant resin layer (2) as an outer layer, and a heat-fusible resin layer (3) as an inner layer, and a metal foil layer disposed between the two layers (2) and (3). The heat-fusible resin layer (3) contains a lubricant, and the content of the lubricant in the heat-fusible resin layer (3) is 200 ppm to 7000 ppm. The content of the lubricant in the outer surface (2a) of the heat-resistant resin layer (2) is less than 0.1 [mu]g/cm<2>. The wetting tension of the outer surface (2a) of the heat-resistant resin layer (2) is 33 mN/m ormore.

Description

technical field [0001] The present invention relates to batteries and capacitors used in portable devices such as smartphones and tablet computers, and batteries and capacitors used in power storage applications such as hybrid vehicles, electric vehicles, wind power generation, solar power generation, and nighttime power. Outer packaging body and manufacturing method thereof. [0002] In addition, in this specification and a claim, the term "wetting tension" refers to the wetting index (surface tension) measured in accordance with JIS K6768-1999. Background technique [0003] In recent years, with the reduction in thickness and weight of mobile electronic devices such as smartphones and tablet terminals, lithium-ion secondary batteries, lithium polymer secondary batteries, lithium-ion capacitors, and dual batteries mounted on the above-mentioned mobile electronic devices Laminates consisting of a heat-resistant resin layer / adhesive layer / metal foil layer / adhesive layer / ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M2/08
CPCH01M50/10H01M50/116H01M50/183Y02E60/10
Inventor 仓本哲伸唐津诚
Owner 乐索纳克包装股份有限公司
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