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Battery packaging material, battery, and production method for battery packaging material

A packaging material and battery technology, which can be used in small-sized batteries/batteries, large-sized batteries/batteries, chemical instruments and methods, etc., can solve the problems of increased thickness and weight, and achieve excellent electrolyte resistance. , The effect of excellent ink printing characteristics

Active Publication Date: 2018-10-23
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, if a sticker with printed characters is formed on the side surface of the base layer, the thickness and weight of the battery packaging material will increase.

Method used

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  • Battery packaging material, battery, and production method for battery packaging material
  • Battery packaging material, battery, and production method for battery packaging material
  • Battery packaging material, battery, and production method for battery packaging material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1－3 and comparative example 1、2

[0129]

[0130] On the substrate layer 1 made of stretched nylon film (thickness 25 μm), the barrier layer 3 made of aluminum foil (thickness 40 μm) subjected to chemical surface treatment on both surfaces was laminated by dry lamination. Specifically, a two-component polyurethane adhesive (polyol compound and aromatic isocyanate compound) was applied to one surface of the aluminum foil to form an adhesive layer 2 (thickness: 4 μm) on the barrier layer 3 . Next, the adhesive layer 2 on the barrier layer 3 and the substrate layer 1 are bonded together under pressure and heat, and then subjected to aging treatment to prepare a laminate of the substrate layer 1 / adhesive layer 2 / barrier layer 3 . In addition, the chemical method surface treatment of the aluminum foil used as the barrier layer 3 was carried out by applying a treatment liquid containing phenol resin, chromium fluoride compound and phosphoric acid at a coating amount of chromium of 10 mg / m 2 The form of (dry weigh...

Embodiment 4－6 and comparative example 3、4

[0133] In Examples 4, 5, and 6, fillers (silica particles with an average particle diameter of 1.0 μm) were added so that the ratio in the resin composition forming the protective layer 6 was 10% by mass. Packaging materials for batteries were prepared in the same manner as in Examples 1, 2, and 3. In addition, in Comparative Examples 3 and 4, fillers (silica particles with an average particle diameter of 1.0 μm) were added so that the proportion in the resin composition for forming the protective layer 6 was 10% by mass. Packaging materials for batteries were produced in the same manner as in Comparative Examples 1 and 2. In the battery packaging materials of Examples 4, 5, and 6 and Comparative Examples 3 and 4, aging was performed under the conditions described in Table 1 after lamination of each layer.

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Abstract

Provided is a battery packaging material, the surface of which having excellent electrolyte resistance and ink printing properties. This battery packaging material comprises a laminate having, in order, at least a protective layer, a base layer, a barrier layer, and a heat-fusible resin layer, wherein the maximum value A of light absorbance detected in the infrared wavenumber range of 2800 cm-1 to3000 cm-1 and the maximum value B of light absorbance detected in the infrared wavenumber range of 2200 cm-1 to 2300 cm-1, when measured by attenuated total reflection with Fourier transform infraredspectroscopy from the outermost side of the protective layer, satisfy the relationship of 0.05 <= B / A <= 0.75.

Description

technical field [0001] The present invention relates to a battery packaging material, a battery and a method for manufacturing the battery packaging material. Background technique [0002] Various types of batteries have been developed in the past, but in all batteries, packaging materials have become an indispensable part in order to package battery components such as electrodes and electrolytes. In the past, metal packaging materials were often used as packaging for batteries, but in recent years, with the improvement of performance in electric vehicles, hybrid electric vehicles, personal computers, cameras, mobile phones, etc., batteries are required to be in various shapes and thin. Lightening and lightweighting. However, in the case of metal packaging materials for batteries that have been widely used in the past, there are disadvantages that it is difficult to cope with diversification of shapes, and there is also a limit in weight reduction. [0003] Therefore, as a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02B32B15/08B32B27/40B65D65/40H01G11/78
CPCB65D65/40H01G11/78B65D2585/88C09J2203/33C09J2400/163C09J2475/006C09J7/29C09J2301/122C09J2301/304Y02T10/70Y02E60/10B32B15/088B32B27/283B32B27/42B32B2255/20B32B27/285B32B27/40B32B15/20B32B2307/7246B32B2307/75B32B27/281B32B2255/205B32B2307/518B32B2553/00B32B15/092B32B3/06B32B2307/516B32B7/12B32B2307/752B32B2255/06B32B2250/03B32B15/082B32B27/38B32B2457/10B32B27/34B32B27/325B32B2307/554B32B2250/04B32B15/095B32B27/36B32B15/098B32B27/16B32B2255/10B32B27/308B32B2307/732B32B15/09B32B2255/26B32B15/08B32B27/08B32B2270/00B32B15/18B32B2307/31B32B15/085H01M50/124Y02T10/62H01M50/10
Inventor 植田俊介山下力也渡边大辅
Owner DAI NIPPON PRINTING CO LTD