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Outer material for power storage device, external case for power storage device and power storage device

A technology for electrical storage equipment and outer packaging, which is applied to battery box/cover materials, electronic equipment, battery boxes/coats, etc., which can solve the problems of reduced surface slippage and inability to form the sealing layer, so as to reduce the amount of seepage, Reduced contact area and good sliding properties

Active Publication Date: 2019-04-05
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

[0010] Of course, if the addition amount of anti-blocking agent is reduced, although the problem of clouding of the sealing layer can be solved, the sliding property of the surface of the sealing layer is reduced, which cannot good molding

Method used

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  • Outer material for power storage device, external case for power storage device and power storage device
  • Outer material for power storage device, external case for power storage device and power storage device
  • Outer material for power storage device, external case for power storage device and power storage device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0119] 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 an aluminum foil 4 with a thickness of 35 μm, and then dried at 180° C. to form a chemical conversion treatment solution. film. The amount of chromium attached to the chemical conversion coating is 10mg / m per side 2 .

[0120] Next, a biaxially stretched nylon 6 film 2 with a thickness of 5 μm is dry-laminated (laminated) on the aluminum foil that has undergone the above-mentioned chemical conversion treatment through a two-component curing type urethane adhesive 5 4 on one side.

[0121] Next, the first heat-sealable resin unstretched film 7 (which contains ethylene-propylene random copolymer, 1000 ppm of erucamide (lubricant), 2000 ppm of silica particles (average The particle size is 1.0 μ m; non-compatible particles)), the thickness is 21 μ m second unstretched film 8 of heat-sealable res...

Embodiment 2

[0124] The content of the silica particles (non-compatible particles) in the first heat-meltable resin layer (innermost layer) 7 and the third heat-meltable resin layer 9 was changed from 2000 ppm to 1000 ppm, the same as in Example 1 Do the same, get figure 1 An outer packaging material 1 for an electrical storage device having the configuration shown in the figure.

Embodiment 3

[0126] The content of the silica particles (non-compatible particles) in the first heat-meltable resin layer (innermost layer) 7 and the third heat-meltable resin layer 9 was changed from 2000 ppm to 6000 ppm, and it was the same as in Example 1. Do the same, get figure 1 An outer packaging 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 material for a power storage device, an external case for the power storage device and the power storage device. the outer material includes a substrate layer (2) asan outer layer, a hot melt resin layer (3) as an inner layer, and a metal foil layer (4) between the substrate layer and the hot melt resin layer. The hot melt resin layer is formed by three or more layers of laminates of a first hot melt resin layer (7) / second hot melt resin layer (8) / third hot melt resin layer (9). Through the structure, the outer material which can ensure good shaping performance and which can inhibit white turbidity can be provided.

Description

technical field [0001] The present invention relates to batteries and capacitors used in portable devices such as smartphones and tablet computers, batteries and capacitors used in hybrid vehicles, electric vehicles, wind power generation, solar power generation, and nighttime power storage. An outer packaging material for electrical equipment, and an electrical storage device packaged with the outer packaging material. [0002] It should be noted that, in this specification and claims, the term "arithmetic mean height Sa" refers to the arithmetic mean height Sa measured in accordance with ISO25178. 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 heat-resistant resin layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01G11/78B32B27/06B32B27/34B32B27/36B32B15/088B32B15/09B32B15/18B32B15/20B32B27/08B32B27/32B32B27/20B32B27/22B32B7/12
CPCH01G11/78B32B7/12B32B15/088B32B15/09B32B15/18B32B15/20B32B27/06B32B27/08B32B27/20B32B27/22B32B27/32B32B27/34B32B27/36B32B2457/10H01M50/124Y02E60/10B32B27/18H01M50/116B32B15/08B32B2457/16H01M50/126H01M50/121H01M50/119
Inventor 中嶋大介唐津诚
Owner 乐索纳克包装股份有限公司
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