Toppan Printing Co., Ltd.

Toppan Priming Co., Ltd.

Wataru Ijuin

Satoshi Sasaki

Masayoshi Suzuta

A power storage device packaging material having a structure including at least a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer laminated in this order. The substrate layer is formed of a polyester film exhibiting &#x394;A, as expressed by the following formula, of 10% or more and a 50% elongation stress of 75 MPa or more after heat treatment at 160&#xb0; C.: '&#x394;A=(break elongation after 160&#xb0; C. heat treatment)&#x2212;(break elongation before 160&#xb0; C. heat treatment)'.

Power storage device packaging material and power storage device using the packaging material

The present invention relates to a packaging material for a power storage device, the packaging material including at least a slip agent layer, a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer, in this order, wherein the slip agent layer contains a fatty acid amide and a fatty acid bisamide, or a fatty acid amide and silicone oil.

Packaging material for power storage devices, and method of producing packaging material for power storage devices

A power storage device packaging material including a base material layer; an adhesion-enhancing treatment layer on a surface of the base material layer; an adhesive layer on a surface of the adhesion-enhancing treatment layer opposite the base material layer; a metal foil layer formed on one side of the adhesive layer opposite the adhesion-enhancing treatment layer; and a sealant layer disposed on a surface of the metal foil layer opposite the adhesive layer. The base material layer is formed of a biaxially oriented film to have a breaking strength of 240 MPa or more in at least one of four directions (0&#xb0; (MD), 45&#xb0;, 90&#xb0; (TD), 135&#xb0;) and an elongation of 80% or more in at least one direction in a tensile test (test specimen shape: test specimen type 5 stipulated in JIS K7127; inter-chuck distance: 60 mm; tensile speed: 50 mm/min).

Power storage device packaging material and power storage device using the same

An outer packaging material for electric storage device comprises at least a substrate layer, an adhesion layer, a metal foil layer, a sealant adhesion layer, and a sealant layer laminated in this order, wherein the substrate layer is one made of either a polyamide film having a hot water shrinkage rate at 95&#xb0; C. of less than 5% and a hot shrinkage rate at 180&#xb0; C. of 4 to 16%, or a polyester film having a hot water shrinkage rate at 95&#xb0; C. of less than 5% and a hot shrinkage rate at 180&#xb0; C. of 10 to 25%.

Outer packaging material for electric storage device and electric storage device using the same

A packaging material for a power storage device having a structure including at least a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer laminated in this order. In the packaging material, the substrate layer is formed of a polyester film having a 50% elongation stress in the range of 100 to 180 MPa and a thermal shrinkage in the range of 1 to 15%, after heat treatment from 160&#xb0; C. to 200&#xb0; C., or a polyester film having a difference &#x394;A in break elongation of 12% or more after heat treatment at 200&#xb0; C. and 160&#xb0; C. and having a 50% elongation stress of 75 MPa or more after heat treatment at 200&#xb0; C.

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Tokyo, Japan

Wataru Ijuin