Patents Assigned to Showa Denko Packaging Co.
  • Patent number: 10109827
    Abstract: A sealant film has a structure made of a laminated body of two or more layers. The laminated body includes a first resin layer 7 containing 50 mass % or more of a random copolymer containing propylene and a copolymer component other than propylene as copolymer components, and a second resin layer 8 formed by a mixed resin containing a first elastomer-modified olefin based resin having a crystallization temperature of 105° C. or higher and a crystallization energy of 50 J/g or more, and a second elastomer-modified olefin based resin having a crystallization temperature is 85° C. or higher and a crystallization energy of 30 J/g or less. With this structure, when the inner pressure of a power storage device is excessively increased, breakage (separation) occurs inside the sealant layer, causing gas-releasing, which in turn can prevent bursting of the packaging material due to the inner pressure increase.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: October 23, 2018
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Daisuke Nakajima, Makoto Karatsu, Takashi Nagaoka
  • Publication number: 20180294473
    Abstract: A first packaging material, a second packaging material, an electrode body having a positive electrode, a negative electrode, and a separator are provided. A packaging member is formed having an electrode body chamber. A first inner conducting portion allows conduction to a first metal foil and a second inner conducting portion allows conduction to a second metal foil. In the electrode body chamber, electrode body is conducted to a first inner conducting portion in the positive electrode and the electrode body is conducted to a second inner conducting portion in the negative electrode. At least one of the pair of the first metal foil and the positive electrode current collector of the positive electrode and the pair of the second metal foil and the negative electrode current collector of the negative electrode is made of the same metal.
    Type: Application
    Filed: September 8, 2016
    Publication date: October 11, 2018
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Kensuke NAGATA, Koji MINAMITANI
  • Patent number: 10079374
    Abstract: A power storage device includes a positive electrode part including a first metallic foil layer and a positive electrode active material layer partially laminated on one surface of the first metallic foil layer, a negative electrode part including a second metallic foil layer and a negative electrode active material layer partially laminated on one surface of the second metallic foil layer, and a separator arranged between the positive electrode part and the negative electrode part. The positive electrode active material layer is arranged between the first metallic foil layer and the separator, and the negative electrode active material layer is arranged between the second metallic foil layer and the separator. The peripheral regions of the one surfaces of the first and second metallic foil layers in which the positive and negative electrode active material layers are not formed are joined via a peripheral sealing layer containing a thermoplastic resin.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: September 18, 2018
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Koji Minamitani, Yuji Minamibori, Kensuke Nagata, Shunsuke Saito
  • Publication number: 20180233712
    Abstract: The shape-forming packaging material is a shape-forming packaging material including a heat resistant resin layer as an outer layer, a heat fusible resin layer as an inner layer, and a metal foil layer disposed between both the layers, and is configured such that a print improving resin layer is laminated on a further outer side of the heat resistant resin layer.
    Type: Application
    Filed: February 9, 2018
    Publication date: August 16, 2018
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Yuji MINAMIBORI, Diasuke NAKAJIMA
  • Patent number: 10026935
    Abstract: A battery exterior body which can be easily manufactured without additional process by heat-sealing internal layers of battery exterior materials, and has a high degree of safety with respect to gas generated in the inside of the exterior body, a method of manufacturing the battery exterior body, and a lithium secondary battery are provided. The battery exterior body is a battery exterior body 2 which is formed by heat-sealing internal layers 8 of battery exterior materials 4 formed by laminating an external layer 11 including a heat-resistant resin film, a metal foil layer 10, and the internal layer 8 in this order, and has a sealing strength between the heat-sealed internal layers 8 of 20 N/15 mm of width to 50 N/15 mm of width.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: July 17, 2018
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventor: Tetsunobu Kuramoto
  • Publication number: 20180183017
    Abstract: A packaging material 1 for power storage devices includes a base material layer 2 made of a heat resistant resin, a sealant layer 3 as an inner layer, and a metal foil layer 4 arranged between the base material layer and the sealant layer. A protective layer 7 is laminated on a surface of the base material layer 2 opposite to a metal foil layer side. The protective layer 7 contains 40 mass % or more of a polyester resin formed by polyester polyol having a number average molecular weight of 5,000 to 50,000 and having a hydroxyl group or a carboxyl group independently at least at respective both ends thereof and a multifunctional isocyanate curing agent containing at least an aliphatic polyfunctional isocyanate compound.
    Type: Application
    Filed: December 18, 2017
    Publication date: June 28, 2018
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventor: Yuji MINAMIBORI
  • Patent number: 10008700
    Abstract: A packaging material 1 includes a heat resistant resin stretched film layer 2 as an outer layer, a thermoplastic resin layer 3 as an inner layer, a metal foil layer 4 arranged between these layers, and a colored ink layer 10 arranged between the metal foil layer 4 and the heat resistant resin stretched film layer 2. As the heat resistant resin stretched film, a heat resistant resin stretched film having a hot water shrinkage rate of 2% to 20% is used, and the heat resistant resin stretched film layer 2 and the colored ink layer 4 are integrally laminated via an easily adhesive layer 30. In this packaging material, at the time of forming and sealing, and even being used in a somewhat severe environment such as high-temperature and humid environment, the colored ink layer will not be detached from the heat resistant resin stretched film layer.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: June 26, 2018
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Yuji Minamibori, Honglin Wang
  • Patent number: 10008699
    Abstract: A package for a power storage device includes a metal foil layer, an insulation layer laminated on at least center portion of one surface of the metal foil layer, and a heat-sealable resin layer arranged one surface of the metal foil layer or a region corresponding to a periphery of the one surface of the metal foil layer. With this, thinning, weight saving, and shortening of the production time can be attained.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: June 26, 2018
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Tetsunobu Kuramoto, Yuji Minamibori, Takashi Nagaoka
  • Publication number: 20180123093
    Abstract: A packaging material for a power storage device includes a heat resistant resin layer 2 as an outer layer, a sealant layer 3 as an inner layer, and a metal foil layer 4 arranged between these layers. The sealant layer 3 is composed of one layer or a plurality of layers. The innermost layer 7 of the sealant layer contains a random copolymer containing propylene as a copolymerization component and another copolymerization component other than propylene, a roughening material, and a lubricant. The roughening material is composed of particles containing a thermoplastic resin. The center line average roughness Ra of the surface 7a of the innermost layer 7 is 0.05 ?m to 1 ?m. It can provide a packaging material for a power storage device which is excellent in formability and hard to generate white powder on the surface.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 3, 2018
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Kenji YOSHINO, Makoto KARATSU
  • Patent number: 9925740
    Abstract: In laminating resin layers on both surfaces of a metal foil layer by adhering a heat-resistant resin layer to a first surface of the metal foil layer and adhering a heat-sealable resin layer to a second surface thereof, as an adhering method, by employing an adhesive agent unapplied portion forming and adhering process in which the resin layer and the metal foil layer are adhered together by applying an adhesive agent to a region of a joining face of both the layers excluding a part of the region so that an adhesive agent unapplied section is formed, a laminated body having the adhesive agent unapplied section is manufactured. A resin layer removal process for removing a resin layer corresponding to the adhesive agent unapplied section of the laminated body to expose the metal foil layer is performed.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: March 27, 2018
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventor: Koji Minamitani
  • Patent number: 9812678
    Abstract: In some embodiments, a molding packaging material includes an outer side base layer made of a heat resistant resin, an inner sealant layer, a metal foil layer arranged between the outer side base material layer and the inner sealant layer, and a matte coat layer formed on a side opposite to a metal foil layer side of the outer side base material layer. The matte coat layer includes a resin component, a solid fine particle, and a lubricant, and the inner sealant layer includes a thermoplastic resin and a lubricant.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: November 7, 2017
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Yuji Minamibori, Honglin Wang
  • Publication number: 20170256758
    Abstract: A packaging material 1 for a power storage device is configured to include a polyamide resin layer 2 as an outer layer, a polyolefin resin layer 3 as an inner layer, and an aluminum foil layer 4 arranged between both the layers. A thickness of the packaging material 1 for a power storage device is 90 ?m or less, a tensile breaking strength of the packaging material for a power storage device is 110 N/15 mm width or more, and a tensile breaking elongation of the packaging material for a power storage device is 90% or more. This enables to provide a packaging material for a power storage device thin in thickness and light in weight which is capable of securing excellent formability even when deep shape forming is performed and also is high in mechanical strength and excellent in impact resistance.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 7, 2017
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventor: Keitaro KAWAKITA
  • Patent number: 9662858
    Abstract: Provided is a molding packaging material that can have an increased use life, can suppress a decrease over time in inter-layer lamination strength, and has superior molding properties in extrusion molding, draw forming, and the like. The laminate molding packaging material contains: an outside substrate layer (2) comprising a heat-resistant resin; an inside sealant layer (3) comprising a thermoplastic resin; and a metal foil provided between the two layers as a barrier layer (4). In the heat-resistant resin of the outside substrate layer (2), a biaxially oriented polyethyleneterephthalate film is used that, when the tensile breaking strength in the M direction is MB and the tensile breaking strength in the T direction is TB, the following are satisfied: formula (I) 500 MPa=MB+TB=700 MPa; and formula (II) ¦MB?TB¦=30 MPa.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 30, 2017
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Tetsunobu Kuramoto, Yuji Minamibori
  • Patent number: 9649827
    Abstract: A molding packaging material includes an outer substrate layer made of a heat-resistant resin, an inner sealant layer made of a thermoplastic resin, a metallic foil layer provided between the outer substrate layer and the inner sealant layer, and a protection coat layer formed on a side opposite to the metallic foil layer side of the outer substrate layer. The protection coat layer is made of a resin composition including a main resin containing a phenoxy resin and a urethane resin, and a curing agent, and has a thickness of 0.1 ?m to 10 ?m.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: May 16, 2017
    Assignee: Showa Denko Packaging Co., Ltd.
    Inventors: Honglin Wang, Yuji Minamibori
  • Publication number: 20170113255
    Abstract: To provide a chassis for a small electronic device that can be formed efficiently by drawing work with low cost, is hard to cause forming failure, and causes no damage on the surface thereof on forming to provide an excellent appearance. The rolled aluminum alloy laminated sheet material is for forming a chassis for a small electronic device by drawing work, and contains a rolled aluminum alloy sheet material having a 0.2% proof stress of 200 MPa or more, and a covering material laminated at least one surface of both surfaces of the rolled aluminum alloy sheet material, and the covering material contains any one of a synthetic resin film, and a laminated material containing a metal foil having synthetic resin films laminated on both surfaces thereof. The rolled aluminum alloy sheet material may have a fibrous crystalline structure extending in a direction perpendicular to a thickness direction thereof.
    Type: Application
    Filed: October 25, 2016
    Publication date: April 27, 2017
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventor: Masanori TAKEUCHI
  • Patent number: 9623629
    Abstract: Provided is a molding packaging material that can have an increased use life, can suppress a decrease over time in inter-layer lamination strength, and has superior molding properties in extrusion molding, draw forming, and the like. The laminate molding packaging material contains: an outside substrate layer (2) comprising a heat-resistant resin; an inside sealant layer (3) comprising a thermoplastic resin; and a metal foil provided between the two layers as a barrier layer (4). In the heat-resistant resin of the outside substrate layer (2), a biaxially oriented polyethyleneterephthalate film is used that, when the tensile breaking strength in the M direction is MB and the tensile breaking strength in the T direction is TB, the following are satisfied: 500 MPa=MB+TB=700 MPa; and??formula (I) |MB?TB|=30 MPa.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: April 18, 2017
    Assignee: Showa Denko Packaging Co., Ltd.
    Inventors: Tetsunobu Kuramoto, Yuuji Minamibori
  • Publication number: 20170104189
    Abstract: The packaging material includes a heat-resistant resin layer 2 as an outer side layer, a heat-fusible resin layer 3 as an inner side layer, and a metal foil layer 4 arranged between these layers. The heat-resistant resin layer 2 is made of a heat-resistant resin film having a hot water shrinkage rate of 1.5% to 12% and the heat-resistant resin layer 2 and the metal foil layer 4 are adhered via an outer side adhesive layer 5. The adhesive layer 5 is formed by an urethane adhesive agent containing a polyol, a polyfunctional isocyanate compound, and an aliphatic compound containing a plurality of functional groups capable of reacting with an isocyanate group in one molecule. With this, a packaging material can be provided in which excellent formability can be secured and delamination can be sufficiently suppressed without causing pinholes, etc., even when deep depth drawing is performed.
    Type: Application
    Filed: October 7, 2016
    Publication date: April 13, 2017
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Wei HE, Hiroaki ITO, Takashi NAGAOKA, Makoto KARATSU
  • Publication number: 20170092904
    Abstract: A sealant film has a structure made of a laminated body of two or more layers. The laminated body includes a first resin layer 7 containing 50 mass % or more of a random copolymer containing propylene and a copolymer component other than propylene as copolymer components, and a second resin layer 8 formed by a mixed resin containing a first elastomer-modified olefin based resin having a melting point of 155° C. or higher and a crystal melting energy of 50 J/g or more, and a second elastomer-modified olefin based resin having a melting point is 135° C. or higher and a crystal melting energy of 30 J/g or less. With this structure, when the inner pressure of a power storage device is excessively increased, breakage (separation) occurs inside the sealant layer, causing gas-releasing, which in turn can prevent bursting of the packaging material due to the inner pressure increase.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 30, 2017
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Daisuke NAKAJIMA, Makoto KARATSU, Takashi NAGAOKA
  • Publication number: 20170092903
    Abstract: A sealant film has a structure made of a laminated body of two or more layers. The laminated body includes a first resin layer 7 containing 50 mass % or more of a random copolymer containing propylene and a copolymer component other than propylene as copolymer components, and a second resin layer 8 formed by a mixed resin containing a first elastomer-modified olefin based resin having a crystallization temperature of 105° C. or higher and a crystallization energy of 50 J/g or more, and a second elastomer-modified olefin based resin having a crystallization temperature is 85° C. or higher and a crystallization energy of 30 J/g or less. With this structure, when the inner pressure of a power storage device is excessively increased, breakage (separation) occurs inside the sealant layer, causing gas-releasing, which in turn can prevent bursting of the packaging material due to the inner pressure increase.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 30, 2017
    Applicant: SHOWA DENKO PACKAGING CO., LTD
    Inventors: Daisuke NAKAJIMA, Makoto KARATSU, Takashi NAGAOKA
  • Patent number: 9553284
    Abstract: A molding material for package includes a matte-coating layer having excellent formability, chemical resistance, solvent resistance, electrolytic solution resistance and printing property. The molding material for package includes an outer base material layer including a heat-resistant resin; an inner sealant layer including a thermoplastic resin; a metal foil layer disposed between the outer base material layer and the inner sealant layer; and a matte-coating layer formed on a side opposite to the metal foil layer of the outer base material layer, wherein the matte-coating layer is a multilayer including a bottom layer including a resin composition including a main agent resin including a phenoxy resin and a urethane resin, a curing agent, and solid fine particles; and an upper layer including a resin composition including a fluorine-containing resin.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: January 24, 2017
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Yuji Minamibori, Honglin Wang