Toppan Printing Co., Ltd.

Toppan Inc.

Yu Ogihara

Masayoshi Suzuta

Junya Imamoto

Ryoji Kato

Kosuke Kinoshita

Hiroshi Dai

A packaging material for a power storage device, comprising at least: a substrate layer; a metallic foil layer with an anti-corrosion treatment layer being disposed on one face or both faces thereof; and a sealant layer in this order, wherein a sealant layer includes a resin layer containing a polypropylene-based resin (A) and an incompatible component (B) incompatible with a polypropylene-based resin (A), and as for loss tangent tan δ obtained by dynamic viscoelasticity measurement at a frequency of 1.0 Hz, the sealant layer has a maximal value of tan δ at −30 to 30° C., and in addition, a ratio (II/I) of the maximal value (II) of tan δ at −30 to 30° C. to a value (1) of tan δ at −50° C. is 2.50 or more.

Electricity storage device cladding

A liquid-repellent structure includes a surface to which liquid repellency is to be imparted; a foundation layer having a surface and disposed to face the surface to which liquid repellency is to be imparted; and a liquid-repellent layer disposed to face the surface of the foundation layer, wherein the foundation layer contains an acid-modified polyolefin, the liquid-repellent layer contains a fluorine-containing resin and particles, and the fluorine-containing resin contains a hydrophilic structural unit having at least one of an amino group and an amide group. A packaging material has the liquid-repellent structure disposed to face a product. The packaging material can also be applied to a product that is a selected one of hand soap, body soap, shampoo, rinse, creams, and cosmetics and that contains a surfactant.

Liquid-repellent structure, production method therefor, packaging material, and separation sheet

A packaging material for a power storage device, comprising at least: a substrate layer; a metallic foil layer with an anti-corrosion treatment layer being disposed on one face or both faces thereof; and a sealant layer in this order, wherein the sealant layer includes a polypropylene-based resin (A) and 1 to 40% by mass of incompatible component (B), and maximum seal strength Sin an adhered portion resulting from adhesion by heat-sealing the packaging material is 35 N/15 mm or more, and in addition, the packaging material for a power storage device satisfies the following requirements (1) or (2): (1) a ratio S/Sof seal strength Sto maximum seal strength Sin a stable range is 0.3 or more; (2) a ratio S/Sof average seal strength Sto maximum seal strength Sis 0.3 or more.

Exterior material for electricity storage device

A packaging material for a power storage device, the packaging material being prepared by laminating at least a substrate layer, a metallic foil layer with an anti-corrosion treatment layer being disposed on one face or both faces thereof, and a sealant layer in this order, wherein the sealant layer comprises an associative organic compound having two or more associative functional groups and a hydrocarbon group having 4 or more carbon atoms.

Housing material for electricity storage device

An exterior material for a lithium ion battery comprising at least a substrate layer, a metal foil layer, and a sealant layer in that order, wherein the sealant layer comprises an anionic functional group-containing layer containing a compound having an anionic functional group, and the concentration of the anionic functional group contained in the anionic functional group-containing layer is about 1.0 mass % or more based on the total amount of the components constituting the anionic functional group-containing layer.

Exterior material for lithium ion battery

Packaging material for a power storage device, comprising at least a substrate layer, an adhesive layer, a metal foil layer and a sealant layer wherein the sealant layer contains an inorganic filler and an occupying ratio of the inorganic filler relative to the total thickness of the sealant layer is 5 to 50%, and also to a packaging material for a power storage device, comprising a substrate layer, a barrier layer and also to a packaging material for power storage device, which comprises a substrate layer, a barrier layer and a sealant layer arranged in this order wherein the barrier layer is made of a metal foil and has a corrosion inhibition treatment layer at least at a side of the sealant layer, and the sealant layer is formed directly on the corrosion inhibition layer, has a thickness of 5 to 30 &#x3bc;m, and contains a high melting point material.

Packaging material for power storage device

A packaging material for a power storage device, having a structure in which at least a substrate layer, a metallic foil layer with an anti-corrosion treatment layer being disposed on one face or both faces thereof, an adhesive layer or an adhesive resin layer, and a sealant layer are laminated in this order, wherein at least one layer of the adhesive resin layer and the sealant layer comprises a polyolefin-based resin, and an additive compound with an SP value of 11.0 (cal/cm)or more and 20.0 (cal/cm)or less.

Outer covering material for electricity storage devices, and electricity storage device

A power storage device packaging material has a structure in which at least a substrate layer, a first adhesive layer, a metal foil layer having an anticorrosion treatment layer on either side or both sides thereof, and a sealant layer are laminated in this order. In the packaging material, the sealant layer is formed of a resin composition containing polyolefin, and the sealant layer has at least one crystallization temperature peak in a temperature range of about 100&#xb0; C. to about 120&#xb0; C.

Power storage device packaging material

A lithium battery packaging material is provided with a laminate formed by sequentially laminating an adhesive layer, an aluminum foil layer provided with a corrosion prevention treatment layer on at least one surface thereof, an adhesive resin layer and a sealant layer on one surface of a substrate layer. The adhesive resin layer contains an adhesive resin composition, and a polypropylene or propylene-&#x3b1;-olefin copolymer having an atactic structure.

Lithium battery packaging material

A packaging material for a power storage device has a structure in which at least a base material layer, a first adhesive layer, a metal foil layer provided with an anti-corrosion treatment layer on one surface or both surfaces thereof, a second adhesive layer or an adhesive resin layer, and a sealant layer are laminated in this order. In the packaging material, the sealant layer includes a layer formed of a resin composition that contains 60 to 95 mass % propylene-ethylene random copolymer (A), and 5 to 40 mass % polyolefin elastomer (B) including 1-butene as a comonomer and having a melting point of 150&#xb0; C. or less.

Growing community of inventors

Tokyo, Japan

Yu Ogihara