WO2022234790A1 - ラミネート外装材 - Google Patents

ラミネート外装材 Download PDF

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Publication number
WO2022234790A1
WO2022234790A1 PCT/JP2022/018943 JP2022018943W WO2022234790A1 WO 2022234790 A1 WO2022234790 A1 WO 2022234790A1 JP 2022018943 W JP2022018943 W JP 2022018943W WO 2022234790 A1 WO2022234790 A1 WO 2022234790A1
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WO
WIPO (PCT)
Prior art keywords
layer
adhesive
exterior material
metal foil
mpa
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/018943
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English (en)
French (fr)
Japanese (ja)
Inventor
良二 樋田
輝利 熊木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Packaging Corp
Original Assignee
Showa Denko Packaging Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Showa Denko Packaging Co Ltd filed Critical Showa Denko Packaging Co Ltd
Priority to JP2023518668A priority Critical patent/JPWO2022234790A1/ja
Publication of WO2022234790A1 publication Critical patent/WO2022234790A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/022—Mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J201/00—Adhesives based on unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/35—Heat-activated
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to laminate exterior materials used as packaging materials for, for example, notebook computers, mobile phones, vehicles, stationary secondary batteries (lithium ion secondary batteries), all-solid-state batteries, and capacitors.
  • a laminated exterior material is generally used in which a substrate layer such as a polyamide film is laminated on one side of a metal foil layer, and a heat-fusible resin layer is laminated on the other side as a sealant layer. ing.
  • the metal foil layer and the base material layer, and the metal foil layer and the sealant layer are bonded together with an adhesive.
  • the adhesive undergoes volumetric shrinkage when cured, it is possible to suppress the occurrence of wrinkles, curls, and the like in the laminated exterior material by thinning the adhesive layer.
  • reduction in the thickness of the adhesive layer can be expected to have the effect of reducing costs and shortening the curing time.
  • Patent Document 1 proposes improving the moldability of the laminate exterior material by providing the adhesive layer with a balance of contradictory physical properties such as flexibility and rigidity.
  • Patent Document 1 is a technique that aims to improve moldability by increasing the hardness and flexibility of the adhesive layer, rather than improving the moldability by thinning the adhesive layer. is not obtained.
  • the present invention provides a laminated exterior material that suppresses delamination due to thinning of the adhesive layer and enjoys the merits of thinning.
  • the present invention has the configurations described in [1] to [6] below.
  • the stress ⁇ at 150% elongation of the adhesive cured product constituting the adhesive layer that joins the base layer and the metal foil layer is 30 MPa to 50 MPa.
  • the rigidity of the adhesive layer is maintained against the volume change of the resin layer including the base material layer due to moisture and heat, and the deformation of the laminated outer material due to external stress.
  • delamination can be prevented by having the adhesive layer follow the substrate layer.
  • effects such as cost reduction and shortening of curing time can be obtained by reducing the thickness of the adhesive layer.
  • the laminated exterior material according to [2] above has a tensile elastic modulus of 200 MPa to 500 MPa when the adhesive cured product constituting the adhesive layer is stretched by 2% to 4%, so the stress on the metal foil layer and the base material The stress on the layers is well balanced, and delamination is less likely to occur regardless of the thickness of the adhesive layer.
  • the cured adhesive material constituting the adhesive layer has a tensile breaking stress of 40 MPa or more, external stress is applied to the case when it is molded into a three-dimensional case or the molded case. In this case, the adhesive layer is less prone to stress fracture regardless of the thickness of the adhesive layer.
  • the adhesive strength between the base material layer and the metal foil layer is 2 N/15 mm to 30 N/15 mm, so both layers are difficult to separate, and the adhesive layer is too hard. The occurrence of delamination due to this can be suppressed.
  • At least the surface of the base material layer facing the metal foil layer is made of polyamide, so that it has good conformability to the metal foil layer and good moldability.
  • the laminated exterior material described in [6] above has a high delamination suppressing effect because the bonding strength between the base material layer and the metal foil layer after immersion in warm water is 2 N/15 mm or more.
  • FIG. 1 is a cross-sectional view of one embodiment of a laminated exterior material of the present invention
  • FIG. 4 is an SS curve showing the relationship between stress and strain of a cured adhesive. SS curves of various cured adhesives.
  • FIG. 2 is a cross-sectional view of a forming tool used for deep drawing forming of a laminated exterior material
  • FIG. 5 is a perspective view of a molded product produced using the deep drawing tool of FIG. 4;
  • Fig. 1 shows an embodiment of the laminated exterior material according to the present invention.
  • This laminated exterior material is used, for example, as a material for an exterior body (case) for a lithium ion secondary battery.
  • a base material layer 12 is attached to one surface of a metal foil layer 10 via a first adhesive layer 11, and the other surface of the metal foil layer 10 is bonded via a second adhesive 13.
  • a heat-fusible resin layer 14 is attached, and these are laminated and integrated.
  • the base material layer 12 serves as the outer surface of the case
  • the heat-sealable resin layer 14 serves as the inner surface of the case.
  • the first adhesive layer 11 is an adhesive layer defined by the present invention, and the adhesive cured product constituting the adhesive layer has the following physical properties and a thickness of is restricted.
  • the adhesive cured product is applied to the metal foil layer 10 and/or the base material layer 12 with an adhesive made fluid by adding a solvent or the like to the adhesive, and the metal foil layer 10 and the base material layer 14 are superimposed. , are adhesives in a state of being cured under conditions corresponding to the adhesives, and are adhesives in a state in which the production of the laminated exterior material 1 is completed.
  • Fig. 2 is an example of an SS curve (stress-strain curve) showing the relationship between stress ⁇ (MPa) and strain (elongation) ⁇ (%) of a cured adhesive.
  • the cured adhesive should have a stress ⁇ of 30 MPa to 50 MPa at 150% elongation.
  • the SS curve a of the cured adhesive shows that the stress at 150% elongation is in the range of 30 MPa to 50 MPa.
  • the first adhesive layer 11 is resistant to volume changes due to moisture and heat of the resin layer including the base material layer 12 and deformation of the laminated exterior material 1 due to external stress.
  • the thickness T1 of the first adhesive layer 11 should be 1.5 ⁇ m to 5.0 ⁇ m. By reducing the thickness T1 of the first adhesive layer 11, it is possible to improve the moldability of the laminated exterior material 1, reduce the cost, and shorten the curing time of the adhesive in the manufacturing process of the laminated exterior material 1. effect is obtained. If the thickness T1 exceeds 5.0 ⁇ m, the effect of these thinning becomes small. The thinner the thickness T1, the lower the cost and the shorter the curing time.
  • a preferable thickness T1 of the first adhesive layer 11 is 2.5 ⁇ m to 4.5 ⁇ m, and 3.5 ⁇ m or less is particularly preferable from the viewpoint of moldability and cost reduction.
  • the laminate 1 can prevent delamination without impairing the advantage of thinning the first adhesive layer 11 .
  • the cured adhesive that constitutes the first adhesive layer 11 preferably further has the following physical properties.
  • the tensile elastic modulus at 2% to 4% elongation obtained from the SS curve of the adhesive cured product is preferably 200 MPa to 500 MPa.
  • the tensile modulus is the slope of the SS curve at 2% to 4% elongation.
  • a particularly preferred tensile modulus is 230 MPa to 450 MPa.
  • the tensile breaking stress (stress at the breaking point of the SS curve) of the cured adhesive is preferably 40 MPa or more. If the tensile breaking stress is 40 MPa or more, when the laminated exterior material 1 is molded into a three-dimensional case or when an external stress is applied to the molded case, regardless of the thickness T1 of the first adhesive layer 11, the first adhesive layer 11 The adhesive layer 11 is less prone to stress fracture. A particularly preferable tensile breaking stress is 42 MPa or more.
  • the bonding strength of the first adhesive layer 11 between the base layer 12 and the metal foil layer 10 is preferably 2N/15mm to 30N/15mm. When the adhesive strength is within the above range, the two layers are less likely to come off, and the occurrence of delamination due to the first adhesive layer 11 being too hard can be suppressed.
  • a preferred adhesive strength is between 4N/15mm and 20N/15mm.
  • the composition of the adhesive constituting the first adhesive layer 11 is not limited as long as it has the physical properties described above.
  • polyurethane-based adhesives, epoxy-based adhesives, olefin-based adhesives, and acrylic-based adhesives can be used.
  • the curing type of the adhesive is not limited, and energy beam curing adhesives such as two-component curing adhesives, ultraviolet curing adhesives and electron beam curing adhesives (adhesives containing photoradical polymerization initiators, light cationic polymerization initiator-containing adhesives), thermosetting adhesives, and the like. (Adhesion strength after hot water immersion)
  • the laminated exterior material 1 that constitutes the battery case is in contact with moisture contained in the air.
  • the present invention recommends a laminated exterior material 1 having an adhesive strength of 2 N/15 mm or more between the base material layer 12 and the metal foil 10 after being immersed in hot water at 40° C. for 168 hours, and has the effect of suppressing the occurrence of delamination. evaluated as high.
  • a particularly preferable adhesive strength after immersion in hot water is 2 N/15 mm to 15 N/15 mm. The adhesive strength is measured immediately after immersing the laminate exterior material 1 in hot water at 40° C. for 168 hours and taking it out of the hot water.
  • the adhesive strength in this section is the adhesive strength of the laminated exterior material subjected to deterioration accelerating treatment by immersion in hot water
  • the adhesive strength in the previous section is the adhesive strength of the laminated exterior material that is not subjected to deterioration accelerating treatment.
  • the base material layer 12 is a layer positioned on the outer surface when the laminated exterior material 1 is used as a case, and is made of a heat-resistant resin that does not melt at the heat-sealing temperature during heat-sealing.
  • the heat-resistant resin it is preferable to use a heat-resistant resin having a melting point higher by 10° C.
  • examples thereof include polyamide films, polyester films, polyolefin films, etc., and stretched films of these films are preferably used.
  • the polyamide film include a biaxially stretched polyamide 6 film (PA6) film and a biaxially stretched polyamide 66 (PA66) film.
  • polyester film examples include biaxially oriented polyethylene terephthalate (PET) film, biaxially oriented polyethylene naphthalate (PEN) film, biaxially oriented polybutylene terephthalate (PBT) film, and polyethylene furanoate (PEF) film.
  • PET biaxially oriented polyethylene terephthalate
  • PEN biaxially oriented polyethylene naphthalate
  • PBT biaxially oriented polybutylene terephthalate
  • PEF polyethylene furanoate
  • a biaxially oriented polypropylene (OPP) film can be exemplified as the polyolefin film.
  • the polyamide film is preferable because it has good conformability to the metal foil layer 10 and good formability.
  • Both a single layer film and a multilayer film can be used for the base material layer 12 .
  • the surface on the metal foil layer 10 side that is, the surface to be bonded to the first adhesive layer 11 is made of polyamide with good conformability to the metal foil layer 10 .
  • a multilayer film of a PET film and a polyamide film can be exemplified as the multilayer film.
  • the multilayer film can be produced by coextrusion, dry lamination, or the like.
  • the film constituting the base material layer 12 does not show a yield point in the SS curve.
  • the stress difference between the upper yield point and the lower yield point is less than 2 MPa.
  • the substrate layer 12 having such physical properties is less prone to abrupt deformation due to external stress, so delamination is less likely to occur.
  • a preferred thickness of the substrate layer 12 is between 10 ⁇ m and 50 ⁇ m, more preferably between 10 ⁇ m and 30 ⁇ m.
  • Preferred materials for forming the layers other than the first adhesive layer and the base material layer in the laminated exterior material of the present invention are as follows.
  • the metal foil layer 10 plays a role of providing the laminate exterior material 1 with a gas barrier property that prevents the penetration of oxygen and moisture.
  • the metal foil layer 10 include, but are not limited to, aluminum foil, copper foil, stainless steel foil, nickel foil, titanium foil, etc.
  • Aluminum foil is generally used.
  • the thickness of the metal foil layer 10 is preferably 10 ⁇ m to 100 ⁇ m. When the thickness is 20 ⁇ m or more, it is possible to prevent the occurrence of pinholes during rolling when manufacturing the metal foil, and when it is 100 ⁇ m or less, the stress during stretch forming or draw forming can be reduced, and formability can be improved. can.
  • a particularly preferred thickness is between 15 ⁇ m and 50 ⁇ m.
  • the surface of the metal foil on the heat-fusible resin layer 14 side is subjected to a chemical conversion treatment.
  • a chemical conversion treatment it is possible to sufficiently prevent corrosion of the metal foil surface due to contents (eg, battery electrolyte, food, pharmaceuticals, etc.).
  • a chemical conversion film is formed by subjecting a metal foil to the following chromate treatment.
  • titanate treatment and zirconium treatment can be mentioned as other chemical conversion treatments.
  • the heat-sealable resin layer 14 is a layer located on the inner surface when used as a case, and has excellent chemical resistance against highly corrosive electrolytes used in lithium-ion secondary batteries and the like. It also plays a role of imparting heat-sealing properties to the laminate exterior material 1 .
  • the heat-fusible resin layer 14 is not particularly limited, it is preferably an unstretched thermoplastic resin film layer.
  • the thermoplastic resin unstretched film layer is not particularly limited, but in terms of chemical resistance and heat sealability, the group consisting of polyethylene, polypropylene, olefinic copolymers, acid-modified products thereof and ionomers. It is preferably composed of an unstretched film made of at least one selected thermoplastic resin.
  • the thickness of the heat-fusible resin layer 14 is preferably set to 20 ⁇ m to 100 ⁇ m. By setting the thickness to 20 ⁇ m or more, it is possible to sufficiently prevent the occurrence of pinholes, and by setting the thickness to 100 ⁇ m or less, it is possible to reduce the amount of resin used, thereby reducing costs. Above all, it is particularly preferable to set the thickness of the heat-fusible resin layer 14 to 25 ⁇ m to 45 ⁇ m.
  • the heat-fusible resin layer 14 may be a single layer or multiple layers. A three-layer film in which random polypropylene films are laminated on both sides of a block polypropylene film can be exemplified as the heat-fusible resin layer 14 having a multilayer structure.
  • the second adhesive layer 13 examples include, but are not limited to, polyurethane adhesives, acrylic adhesives, epoxy adhesives, polyolefin adhesives, elastomer adhesives, and fluorine adhesives. , an adhesive layer formed of an acid-modified polypropylene adhesive, or the like.
  • a preferable thickness of the second adhesive layer 13 is 1 ⁇ m to 5 ⁇ m, and a particularly preferable thickness is 2 ⁇ m to 4 ⁇ m.
  • the heat-fusible resin layer 14 can also be directly bonded to the metal foil layer 10 using its adhesive force.
  • the technical scope of the present invention also includes a laminated exterior material in which the heat-fusible resin layer 14 is directly attached to the metal foil layer 10 without the second adhesive layer 13 interposed therebetween.
  • the metal foil layer 10 is an aluminum foil made of JIS H4160 A8079-O with a thickness of 45 ⁇ m. Drying was performed at 180° C. to form a chemical conversion film. The amount of chromium adhered by this chemical conversion film is 10 mg/m 2 per side.
  • the base material layer 12 is a biaxially stretched polyamide film with a thickness of 15 ⁇ m.
  • the heat-fusible resin layer 14 is an unstretched polypropylene film with a thickness of 80 ⁇ m.
  • the second adhesive layer 13 is a two-liquid curable maleic acid-modified polypropylene adhesive composed of a main agent and a curing agent.
  • maleic acid-modified polypropylene melting point 80 ° C., acid value 10 mg KOH / g
  • 8 masses of isocyanurate of hexamethylene diisocyanate (NCO content: 20 mass%) as a curing agent The parts were combined and solvent was added to prepare an adhesive solution.
  • First adhesive layer Six kinds of two-liquid curable adhesives A to F shown in Table 1 were prepared. Table 1 shows the main agent, curing agent, and their compounding ratio of each adhesive.
  • adhesive solutions of adhesives A to E shown in Table 2 are applied as the first adhesive layer 11, and dried by heating to form the first adhesive layer 11, A substrate layer 12 was overlaid. At this time, the amount of the adhesive solution applied was adjusted so that the thickness T1 of the first adhesive layer 11 in the finished laminated exterior material 1 was the thickness shown in Table 2.
  • a two-liquid curing adhesive solution for the second adhesive layer 13 is applied to the other surface of the metal foil layer 10, dried by heating to form the second adhesive layer 13, and heat-sealed.
  • a flexible resin layer 14 was overlaid. At this time, the coating amount of the adhesive solution was adjusted so that the solid content of the adhesive was 2 g/m 2 .
  • the laminate was sandwiched between a rubber nip roll and a lamination roll heated to 100° C., and was subjected to thermocompression bonding to perform dry lamination, followed by winding on a roll shaft. Then, it was aged at 40° C. for 10 days in a state wound around a roll shaft to obtain a laminated exterior material 1 .
  • the adhesive strength (N/15 mm) between the base material layer 12 and the metal foil layer 10 in each laminated exterior material 1 produced was measured by the following method defined in JIS K 6854-3 (1999).
  • a test piece of width 15 mm x length 150 mm was cut out from the laminate exterior material 1.
  • Neoriver S-546 (3 Sai Kako Co., Ltd.) was applied, left to stand at room temperature for 1 hour, and then the release agent was wiped off. Then, the space between the metal foil layer 10 and the base material layer 12 is peeled off from the end of the short side to which the release agent is applied, and a region of 10 mm from the end is covered with the metal foil layer 10 and the heat-fusible resin layer 14. It was split into one part and a second part containing 12 substrate layers.
  • the laminated exterior material 1 thus produced was cut into a rectangular shape to obtain a molding material 1A.
  • a deep drawing tool 30 manufactured by Amada Co., Ltd.
  • a punch 32, and a blank holder 33 is used to deep draw into a rectangular parallelepiped shape of 55 mm long x 35 mm wide x depth D.
  • the deep drawing is performed in such a manner that the top surface of the punch 32 is brought into contact with the heat-sealable resin layer 14 of the molding material 1A and the base material layer 12 protrudes outward, and the molding depth D is 4.0 mm to 9. Molded products 35 with 11 different depths D were produced by changing 0.0 mm in units of 0.5 mm.
  • the method for measuring the adhesive strength after immersion in hot water is the measurement method in the above-described "Physical properties (adhesive strength) of laminated exterior material" except that the test piece is immersed in warm water and the base layer 12 is reinforced after immersion. is the same as
  • Table 2 shows the measured bonding strength after immersion in hot water. ⁇ Comprehensive evaluation> If there is no "x" in the three evaluation items of moldability (occurrence of cracks, etc.), moldability (delamination), and hot water resistance, it is judged as ⁇ (good). ).
  • the present invention can be used as a material for battery cases such as lithium ion secondary batteries.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
PCT/JP2022/018943 2021-05-06 2022-04-26 ラミネート外装材 Ceased WO2022234790A1 (ja)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014050542A1 (ja) * 2012-09-28 2014-04-03 大日本印刷株式会社 電池用包装材料
JP2015022910A (ja) * 2013-07-19 2015-02-02 東洋インキＳｃホールディングス株式会社 電池用包装材、電池用容器および電池
WO2016181867A1 (ja) * 2015-05-14 2016-11-17 凸版印刷株式会社 蓄電デバイス用外装材、及び当該外装材を用いた蓄電デバイス
WO2018097329A1 (ja) * 2016-11-28 2018-05-31 大日本印刷株式会社 電池用包装材料、その製造方法、及び電池
WO2018194171A1 (ja) * 2017-04-20 2018-10-25 大日本印刷株式会社 電池用包装材料、その製造方法、及び電池
WO2019054008A1 (ja) * 2017-09-14 2019-03-21 昭和電工パッケージング株式会社 成形用包装材、蓄電デバイス用外装ケース及び蓄電デバイス
JP2019117706A (ja) * 2017-12-27 2019-07-18 昭和電工パッケージング株式会社 蓄電デバイス用外装材及び蓄電デバイス

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014050542A1 (ja) * 2012-09-28 2014-04-03 大日本印刷株式会社 電池用包装材料
JP2015022910A (ja) * 2013-07-19 2015-02-02 東洋インキＳｃホールディングス株式会社 電池用包装材、電池用容器および電池
WO2016181867A1 (ja) * 2015-05-14 2016-11-17 凸版印刷株式会社 蓄電デバイス用外装材、及び当該外装材を用いた蓄電デバイス
WO2018097329A1 (ja) * 2016-11-28 2018-05-31 大日本印刷株式会社 電池用包装材料、その製造方法、及び電池
WO2018194171A1 (ja) * 2017-04-20 2018-10-25 大日本印刷株式会社 電池用包装材料、その製造方法、及び電池
WO2019054008A1 (ja) * 2017-09-14 2019-03-21 昭和電工パッケージング株式会社 成形用包装材、蓄電デバイス用外装ケース及び蓄電デバイス
JP2019117706A (ja) * 2017-12-27 2019-07-18 昭和電工パッケージング株式会社 蓄電デバイス用外装材及び蓄電デバイス

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