Toppan Printing Co., Ltd.

Takuya Muraki

Masayoshi Suzuta

Tomohiko Yamazaki

Satoshi Sasaki

Shunsuke Nakanishi

A power storage device packaging material includes a structure including at least a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer, which are laminated in this order, wherein the adhesive layer has a yield stress in the range of 3500 to 6500 N/cmand breaking elongation of 45 to 200% in a stress-strain curve determined by a tensile test at a tension rate of 6 mm/min. A power storage device packaging material according to the second aspect of the present disclosure includes a structure including at least a substrate layer, an adhesive layer, a metal foil layer, an anticorrosion treatment layer, a sealant adhesive layer, and a sealant layer, which are laminated in this order, wherein the adhesive layer has a glass transition temperature in a range of 140&#xb0; C. or more and 160&#xb0; C. or less.

Materials for power storage devices and power storage devices using the same

A packaging material for a power storage device, the packaging material including a structure in which at least a substrate protective layer, a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer are laminated in this order, wherein the substrate protective layer is a cured product of a raw material containing a polyester resin or an acrylic resin, and a curing agent; the polyester resin or the acrylic resin has reactive groups reactive with the curing agent at a terminal position and/or in a side chain; the curing agent contains an isocyanate other than an alicyclic isocyanate, and an alicyclic isocyanate; and the ratio ([a]/[b]) of the weight of the isocyanate other than an alicyclic isocyanate [a] to the weight of the alicyclic isocyanate [b] is 99/1 to 80/20.

Packaging material for power storage device and method for manufacturing packaging material for power storage device

The present invention relates to a packaging material for a power storage device, the packaging material having a structure in which at least a substrate protective layer, a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer are laminated in this order, wherein the substrate protective layer is a cured product of a raw material containing a polyester resin and a polyisocyanate, a ratio [NCO]/[OH] is 5 to 60, where [OH] is the number of moles of hydroxyl groups in the polyester resin, and [NCO] is the number of moles of isocyanate groups in the polyisocyanate, and the polyester resin has a hydroxyl value of 10 to 70 KOHmg/g.

A packaging material for a power storage device includes a structure made up of a cover layer, a barrier layer, a sealant adhesive layer, and a sealant layer laminated in this general order. In the packaging material, the barrier layer has an aluminum foil layer and an anticorrosion treatment layer that is provided to a sealant layer side surface of the aluminum foil layer and faces the sealant adhesive layer. The sealant layer side surface of the aluminum foil layer has a 60&#xb0; glossiness that is 690 or less in both MD and TD, and has a difference in 60&#xb0; glossiness between MD and TD that is 100 or less.

Packaging material for power storage device and power storage device using the same

A lithium battery packaging material of the present invention includes a laminate in which a substrate layer, a first adhesive layer, a metal foil layer, a corrosion prevention treatment layer, a second adhesive layer, and a sealant layer are laminated in this order. In the packaging material, the corrosion prevention treatment layer contains an rare-earth oxide, and 1 to 100 parts by mass of phosphoric acid or phosphate relative to 100 parts by mass of the rare-earth oxide, the second adhesive layer includes an adhesive composition containing an acid modified polyolefin resin and a polyfunctional isocyanate compound, and, in an infrared absorption spectrum of the second adhesive layer, a ratio (Y/X) between absorption (X) derived from C&#x2014;H bending vibration of CHand absorption (Y) derived from N&#x2014;H bending vibration of a biuret bond is 0.3 or less.

Lithium battery packaging material

According to the present invention, a lithium ion battery outer cover material that has superior resistance to electrolytes without chromate treatment, has superior deep drawing formability and high quality, and can be produced easily is provided. The lithium ion battery outer cover material () of a first embodiment of the present invention has a base material layer (), first adhesive layer () containing an adhesive, aluminum foil layer (), corrosion prevention treated layer (), second adhesive layer () containing an adhesive or adhesive resin, and sealant layer () laminated in that order. The base material layer () is a film base material in which the difference (&#x3b1;) of the elasticity (&#x3b1;) to the yield point and the elasticity (&#x3b1;) to the rupture point as measured according to JIS-K7127 is 100% or greater in at least one of the MD direction and TD direction.

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Tokyo, Japan

Takuya Muraki