COMPOSITION FOR ADHESIVES, OUTER PACKAGE MATERIAL FOR ELECTRICITY STORAGE DEVICES, AND METHOD FOR PRODUCING SAME

Title:

COMPOSITION FOR ADHESIVES, OUTER PACKAGE MATERIAL FOR ELECTRICITY STORAGE DEVICES, AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2020/203213

Kind Code:

A1

Abstract:

The present invention provides: an outer package material for electricity storage devices such as batteries, which is suppressed in over-time decrease of bonding strength between a metal foil layer and a sealant layer due to an electrolyte solution for a long period of time, thereby exhibiting sufficient electrolyte solution resistance; and a composition for adhesives, which enables the achievement of this outer package material. An outer package material for electricity storage devices, which has a structure wherein at least a base material layer, a first adhesive layer, a metal foil layer, a second adhesive layer and a sealant layer are sequentially stacked in this order, wherein a composition that contains an isocyanate group and a (meth)acryloyl group, while additionally containing an acid-modified polyolefin (component 1), an active energy ray polymerization initiator (component 3) and a solvent (component 4), is used as a composition for adhesives for forming the second adhesive layer.

Inventors:

OOGA KAZUHIKO (JP)
KAWAMOTO TAKESHI (JP)
SUZUKI KAI (JP)
YAMAMOTO RYUNOSUKE (JP)

Application Number:

PCT/JP2020/011391

Publication Date:

October 08, 2020

Filing Date:

March 16, 2020

Export Citation:

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Assignee:

SHOWA DENKO KK (JP)

International Classes:

C09J4/02; B32B15/08; C09J11/06; C09J123/30; H01M2/02

Domestic Patent References:

WO2019003977A1	2019-01-03
WO2017134931A1	2017-08-10
WO2019139016A1	2019-07-18

Foreign References:

JP2018107062A	2018-07-05
JP2018147782A	2018-09-20
JP2017201580A	2017-11-09

Other References: