Title:
電池用包装材料
Document Type and Number:
Japanese Patent JP6721870
Kind Code:
B2
Abstract:
Provided is a battery packaging material that allows the permeation of moisture into the battery to be suppressed effectively, and the costs of battery production to be reduced. The battery packaging material comprises a laminated film including at least a metal layer and a thermally fusible resin layer, the metal layer having pinholes present therein. When A is the surface area of the outer surface of the battery packaging material when a battery element is sealed with the battery packaging material, and B is the total surface area of the pinholes present in the metal layer of the battery packaging material, the value B/A is 3 × 10-6 or less.
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Inventors:
Tetsuya Kojiri
Atsuko Takahagi
Hiroshi Kishida
Takanori Yamashita
Rikiya Yamashita
Atsuko Takahagi
Hiroshi Kishida
Takanori Yamashita
Rikiya Yamashita
Application Number:
JP2017507644A
Publication Date:
July 15, 2020
Filing Date:
March 25, 2016
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
H01G11/78; H01M50/105; H01M50/141; H01M50/145
Domestic Patent References:
| JP2010086831A | ||||
| JP2007095460A | ||||
| JP2014132539A | ||||
| JP2013222687A | ||||
| JP2001176459A | ||||
| JP9277453A | ||||
| JP2004241250A | ||||
| JP3092123B1 |
Foreign References:
| WO2014178343A1 |
Attorney, Agent or Firm:
Junya Tanaka
Mizuya Kamiya
Mizuya Kamiya