Title:
EXTERIOR MATERIAL FOR POWER STORAGE DEVICE, METHOD FOR MANUFACTURING EXTERIOR MATERIAL FOR POWER STORAGE DEVICE, AND POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/153460
Kind Code:
A1
Abstract:
Provided is an exterior material for a power storage device, the exterior material having: a barrier layer with a corrosion resistant film; and an adhesive layer, wherein high adhesion between the barrier layer and the adhesive layer is retained even when water enters into the power storage device. The exterior material for a power storage device is composed of a laminate having: at least a substrate layer; a barrier layer; an adhesive layer; and a heat-fusible resin layer in this order, wherein the adhesive layer is a cured product of a resin composition containing a compound having an isocyanate group, the barrier layer has a corrosion resistant film at least on the adhesive layer-side surface thereof, PPO3/CrPO4, which is the ratio of peak intensity PPO3 derived from PO3
- to peak intensity PCrPO4 derived from CrPO4
-, for the corrosion-resistant film is within the range of 6-120 as analyzed using time-of-flight secondary ion mass spectrometry, and POCO/PC-C, which is the value of the peak height ratio obtained by dividing the height of peak POCO by the height of peak PC-C (POCO is a peak derived from C1s of O-C=O bonds in the range of 287-290 eV, and PC-C is a peak derived from C1s of C-C bonds at 285 eV as detected by X-ray photoelectron spectroscopy analysis of the corrosion resistant film), is in the range of 0.10-0.50.
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Inventors:
MITSUZUKA SATOSHI (JP)
FUJIWARA RYO (JP)
FUJIWARA RYO (JP)
Application Number:
PCT/JP2020/002428
Publication Date:
July 30, 2020
Filing Date:
January 23, 2020
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
B32B27/40; H01G11/78; H01M2/02
Domestic Patent References:
| WO2017073774A1 | 2017-05-04 | |||
| WO2019017457A1 | 2019-01-24 |
Foreign References:
| JP2001176461A | 2001-06-29 | |||
| JP2003247079A | 2003-09-05 | |||
| JP2014175121A | 2014-09-22 | |||
| JP2008287971A | 2008-11-27 |
Other References:
See also references of EP 3915785A4
Attorney, Agent or Firm:
TANAKA, Junya et al. (JP)
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