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Outer packaging material for electricity storage device and the electricity storage device

A technology for storage devices and outer packaging, which is applied to battery box/cover material, battery box/coat, circuit, etc. It can solve the problems of poor productivity, easy residual solvent, and difficulty in obtaining adhesive force, etc., and achieve excellent productivity.

Active Publication Date: 2020-03-03
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

[0007] However, in the technology described in the above-mentioned Patent Document 1, in order to obtain the desired adhesive force as an adhesive, it is necessary to heat aging (heat aging) at 50° C. for 7 days. Problems in large-scale equipment for heat curing
In addition, since a solvent is used, if the drying is insufficient, the solvent tends to remain and it is difficult to obtain sufficient adhesive force

Method used

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  • Outer packaging material for electricity storage device and the electricity storage device
  • Outer packaging material for electricity storage device and the electricity storage device
  • Outer packaging material for electricity storage device and the electricity storage device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0142] A chemical conversion treatment liquid containing phosphoric acid, polyacrylic acid (acrylic resin), chromium (III) salt compound, water, and alcohol is applied to both sides of aluminum foil (A8079 aluminum foil specified in JIS H4160) 4 with a thickness of 35 μm. Thereafter, drying is performed at 180° C. to form a chemical conversion coating. The amount of chromium attached to the chemical conversion coating is 10 mg / m per side 2 .

[0143] Then, on one side of the aluminum foil 4 that has completed the above-mentioned chemical conversion treatment, the mass after drying becomes 4g / m 2 90.0 parts by mass of urethane acrylate resin having two acryloyl groups, 0.5 parts by mass of isopropylthioxanthone, 7.5 parts by mass of benzophenone, and pentaerythritol triacrylate (polymerizable monomer) 1.5 parts by mass of photocurable resin composition (outside adhesive) with 0.5 parts by mass of silane coupling agent, the cumulative light intensity on the coated surface beco...

Embodiment 2

[0146] As the outer adhesive, 90.0 parts by mass of urethane acrylate resin having two acryloyl groups, 2.0 parts by mass of isopropylthioxanthone, 6.0 parts by mass of benzophenone, pentaerythritol triacrylate (polymerized monomer) 1.5 parts by mass, a photocurable resin composition of 0.5 parts by mass of a silane coupling agent, except that it was performed in the same manner as in Example 1 to obtain figure 1 An exterior material 1 for an electrical storage device having the configuration shown in the figure.

Embodiment 3

[0148] As the outer adhesive, 90.0 parts by mass of urethane acrylate resin having two acryloyl groups, 0.1 part by mass of isopropylthioxanthone, 7.9 parts by mass of benzophenone, pentaerythritol triacrylate (polymerized monomer) 1.5 parts by mass, a photocurable resin composition of 0.5 parts by mass of a silane coupling agent, except that it was performed in the same manner as in Example 1 to obtain figure 1 An exterior material 1 for an electrical storage device having the configuration shown in the figure.

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Abstract

The invention relates to an outer packaging material for an electricity storage device and an electricity storage device. The following configuration is adopted: the material includes a heat-resistantresin layer as an outer layer, a heat-melting resin layer as an inner layer, and a metal foil layer disposed between the two layers; the metal foil layer (4) and the heat-resistant resin layer (2) are bonded via an outer adhesive layer (5); the metal foil layer and the heat-melting resin layer (3) are bonded via an inner adhesive layer (6); at least one of the outer and inner adhesive layers is formed of a photocurable resin adhesive containing a main agent and at least two types of photopolymerization initiators; in the photopolymerization initiators, a part or all of the light absorption bands of one of the photopolymerization initiators has wavelength regions that do not overlap with light absorption bands of the other photopolymerization initiator. It is possible to provide the outerpackaging material for the electricity storage device that is excellent in productivity, has no overflow of adhesive, and can obtain sufficient high-temperature lamination strength.

Description

technical field [0001] The present invention relates to batteries and capacitors used in portable devices such as smartphones and tablet PCs, batteries and capacitors used in hybrid vehicles, electric vehicles, wind power generation, solar power generation, and power storage at night Outer packaging materials for power storage devices and power storage devices. [0002] In addition, in the claims of this application and this specification, the term "light" is used to mean not only visible light and ultraviolet light but also X-rays. [0003] In addition, in the claims of this application and this specification, the term "photopolymerization initiator" means a compound that generates any one of radicals, cations, and anions by light irradiation. [0004] In addition, in the claims of this application and this specification, the term "phosphoric acid-containing (meth)acrylate" means "phosphoric acid-containing acrylate or / and phosphoric acid-containing methacrylate". Backgrou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M10/0525
CPCH01M10/0525H01M50/116H01M50/124Y02E60/10
Inventor 何卫
Owner 乐索纳克包装股份有限公司
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