WO2016159233A1 - Matériau d'enveloppe pour batterie, procédé de fabrication de celui-ci, et batterie - Google Patents

Matériau d'enveloppe pour batterie, procédé de fabrication de celui-ci, et batterie Download PDF

Info

Publication number
WO2016159233A1
WO2016159233A1 PCT/JP2016/060654 JP2016060654W WO2016159233A1 WO 2016159233 A1 WO2016159233 A1 WO 2016159233A1 JP 2016060654 W JP2016060654 W JP 2016060654W WO 2016159233 A1 WO2016159233 A1 WO 2016159233A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
heat
resin layer
fusible resin
packaging material
Prior art date
Application number
PCT/JP2016/060654
Other languages
English (en)
Japanese (ja)
Inventor
一彦 横田
Original Assignee
大日本印刷株式会社
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 大日本印刷株式会社 filed Critical 大日本印刷株式会社
Priority to JP2017510186A priority Critical patent/JP6939545B2/ja
Publication of WO2016159233A1 publication Critical patent/WO2016159233A1/fr

Links

Images

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
    • B32B15/085—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 polyolefins
    • 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
    • H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
    • H01M50/141—Primary casings; Jackets or wrappings for protecting against damage caused by external factors for protecting against humidity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/78—Cases; Housings; Encapsulations; Mountings
    • 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
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
    • H01M50/145—Primary casings; Jackets or wrappings for protecting against damage caused by external factors for protecting against corrosion
    • 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 a packaging material for a battery, a manufacturing method thereof, and a battery.
  • a battery packaging material that can be easily processed into various shapes and can be made thinner and lighter, it is a film in which an intermediate layer / a heat-fusible resin layer composed of an outer layer / metal foil is sequentially laminated.
  • the laminated body of this is proposed.
  • a battery packaging material generally, a recess is formed by molding, and a battery element such as an electrode or an electrolytic solution is accommodated in the space formed by the recess, and the heat-fusible resin layers are heated together. By welding, a battery in which the battery element is accommodated in the battery packaging material is obtained.
  • Patent Document 1 discloses a battery case including a biaxially stretched polyamide film layer as an outer layer, an unstretched thermoplastic resin film layer as an inner layer, and an aluminum foil layer disposed between the two film layers.
  • a packaging material is disclosed.
  • the battery packaging material disclosed in Patent Document 1 has a problem that the insulation may be lowered when the battery packaging material is applied to a battery. It was done.
  • the electrolytic solution when the electrolytic solution is accommodated in the battery packaging material in the battery manufacturing process, the electrolytic solution is attached to the thermally welded portion of the inner layer, It has been found that the inner layer may be thermally welded. In such a case, bubbles formed by evaporation of the electrolyte located in the heat-welded portion are formed in the melted inner layer by heating at the time of heat-welding (for example, a high temperature of 170 ° C. or higher). In addition, it has been clarified that the bubbles grow larger and reach the intermediate layer composed of the metal foil or the vicinity thereof, and the thickness of the inner layer of the heat welded portion is reduced.
  • the present invention is an invention made by finding such a new problem. That is, the main object of the present invention is to provide a battery packaging material having high insulation properties.
  • the present inventor has intensively studied to solve the above problems.
  • it is composed of a laminate comprising an outer layer, an intermediate layer composed of a metal foil, and an inner layer composed of a heat-fusible resin, and the inner layer is rotated at 170 ° C. under dry nitrogen.
  • a resin layer having a thickness of 20 ⁇ m or more which is composed of a resin having a melt viscosity of 150 Pa ⁇ sec or more and 900 Pa ⁇ sec or less at a speed of 20 rpm, the battery packaging material exhibits high insulation. I found it.
  • the present invention has been completed by further studies based on these findings.
  • this invention provides the packaging material for batteries of the aspect hung up below, its manufacturing method, and a battery.
  • Item 1 In the thickness direction, in order, a laminate comprising an outer layer, an intermediate layer composed of a metal foil, and an inner layer composed of a heat-fusible resin, The inner layer includes a resin layer having a thickness of 20 ⁇ m or more, which is made of a resin having a melt viscosity of 150 Pa ⁇ sec or more and 900 Pa ⁇ sec or less at 170 ° C. and a rotation speed of 20 rpm under dry nitrogen. material.
  • the inner layer is composed of one layer of the first heat-fusible resin layer,
  • the first heat-fusible resin layer is made of polypropylene,
  • the first heat-fusible resin layer is the resin layer;
  • Item 4. A battery packaging material according to Item 1.
  • the inner layer is composed of two layers: a first heat-fusible resin layer as an outermost layer opposite to the intermediate layer, and a second heat-fusible resin layer adjacent to the first heat-fusible resin layer. Configured, The first heat-fusible resin layer is made of polypropylene, The second heat-fusible resin layer is the resin layer; Item 4.
  • the inner layer includes a first heat-fusible resin layer as an outermost layer opposite to the intermediate layer, a second heat-fusible resin layer adjacent to the first heat-fusible resin layer, and the first layer 2 is composed of three layers of a heat-fusible resin layer and a third heat-fusible resin layer adjacent thereto,
  • the first heat-fusible resin layer is made of polypropylene, At least one of the second heat-fusible resin layer and the third heat-fusible resin layer is the resin layer;
  • Item 4. A battery packaging material according to Item 1.
  • Item 6. Item 6.
  • Item 7. Item 7.
  • a step of obtaining a laminate comprising an outer layer, an intermediate layer composed of a metal foil, and an inner layer composed of a heat-fusible resin
  • Production of a packaging material for a battery in which a resin layer having a melt viscosity of 150 Pa ⁇ sec or more and 900 Pa ⁇ sec or less and having a thickness of 20 ⁇ m or more is provided as the inner layer under dry nitrogen at 170 ° C. and a rotation speed of 20 rpm.
  • the inner layer is dried.
  • a battery having a high insulating property by including a resin layer having a thickness of 20 ⁇ m or more, which is made of a resin having a melt viscosity of 150 Pa ⁇ sec or more and 900 Pa ⁇ sec or less at 170 ° C. and a rotation speed of 20 rpm under nitrogen.
  • Packaging materials can be provided. That is, the battery insulation can be enhanced by sealing the battery element with the battery packaging material of the present invention.
  • the battery packaging material of the present invention comprises a laminate comprising, in the thickness direction, an outer layer, an intermediate layer composed of a metal foil, and an inner layer composed of a heat-fusible resin.
  • the resin layer is made of a resin having a melt viscosity of 150 Pa ⁇ sec or more and 900 Pa ⁇ sec or less at 170 ° C. and a rotation speed of 20 rpm, and having a thickness of 20 ⁇ m or more.
  • the battery packaging material has, in the thickness direction, an outer layer, an intermediate layer composed of a metal foil, and an inner layer composed of a heat-fusible resin. And an outer layer intermediate layer laminate.
  • the outer layer is the outermost layer side
  • the inner layer is the innermost layer. That is, when the battery is assembled, the inner layers 4 positioned on the periphery of the battery element are thermally welded to seal the battery element, thereby sealing the battery element.
  • the inner layer 4 is composed of one layer of the first heat-fusible resin layer 41.
  • the first heat-fusible resin layer 41 is made of polypropylene, and the first heat-fusible resin layer 41 is the aforementioned resin layer.
  • the inner layer 4 includes a first heat-fusible resin layer 41 as the outermost layer opposite to the intermediate layer 3, and a second heat-fusible resin adjacent to the first heat-fusible resin layer 41.
  • the layer 42 is composed of two layers.
  • the first heat-fusible resin layer 41 is made of polypropylene
  • the second heat-fusible resin layer 42 is the aforementioned resin layer.
  • the inner layer 4 includes a first heat-fusible resin layer 41 as an outermost layer opposite to the intermediate layer 3, and a second heat-fusible resin layer 41 adjacent to the first heat-fusible resin layer 41.
  • the adhesive layer is composed of three layers, that is, an adhesive resin layer 42 and a third thermal adhesive resin layer 43 adjacent to the second thermal adhesive resin layer 42.
  • the first heat-fusible resin layer 41 is made of polypropylene, and at least one of the second heat-fusible resin layer 42 and the third heat-fusible resin layer 43 is the aforementioned resin. Is a layer.
  • the inner layer 4 may be composed of four or more layers.
  • the melt viscosity is a value measured using MiniLab manufactured by HAAKE.
  • the battery packaging material of the present invention is provided with an adhesive layer 2 between the outer layer 1 and the intermediate layer 3 for the purpose of enhancing the adhesiveness as required. Good. Further, as shown in FIG. 5, the battery packaging material of the present invention is provided with an adhesive layer 5 between the intermediate layer 3 and the inner layer 4 as necessary for the purpose of enhancing the adhesiveness thereof. Also good.
  • the total thickness of the laminate constituting the battery packaging material of the present invention is not particularly limited, but from the viewpoint of exhibiting high insulation while reducing the thickness of the battery packaging material, preferably about 50 ⁇ m or more and 150 ⁇ m or less, More preferably, it is about 55 ⁇ m or more and 120 ⁇ m or less.
  • the outer layer 1 is a layer positioned as the outermost layer when the battery is assembled when a surface coating layer to be described later is not provided.
  • the material forming the outer layer 1 is not particularly limited as long as it has insulating properties.
  • the material forming the outer layer 1 include resin films such as polyester resin, polyamide resin, epoxy resin, acrylic resin, fluorine resin, polyurethane resin, silicon resin, phenol resin, and mixtures and copolymers thereof. .
  • a polyester resin and a polyamide resin are mentioned, More preferably, a biaxially stretched polyester resin and a biaxially stretched polyamide resin are mentioned.
  • polyester resin examples include polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, copolyester, and polycarbonate.
  • polyamide resin examples include nylon 6, nylon 6,6, a copolymer of nylon 6 and nylon 6,6, nylon 6,10, polymetaxylylene adipamide (MXD6), and the like. It is done.
  • the outer layer 1 may be formed from a single-layer resin film, but may be formed from two or more resin films in order to improve pinhole resistance and insulation.
  • the polyester resin / polyamide resin structure is preferable, and the polyethylene terephthalate / nylon structure is more preferable.
  • the outer layer 1 is formed of a multilayer resin film
  • two or more resin films may be laminated via an adhesive component such as an adhesive or an adhesive resin.
  • an adhesive component such as an adhesive or an adhesive resin.
  • an adhesive component such as an adhesive or an adhesive resin.
  • the type and amount of the adhesive component used, etc. This is the same as the case of the adhesive layer 2 described later.
  • stacking two or more resin films A well-known method can be employ
  • laminating by the dry laminating method it is preferable to use a urethane-based adhesive as the adhesive layer.
  • a thickness of an adhesive bond layer 2 micrometers or more and about 5 micrometers or less are mentioned, for example.
  • the thickness of the outer layer 1 is not particularly limited as long as the battery packaging material satisfies the above physical properties while exhibiting the function as the outer layer.
  • the thickness is about 10 ⁇ m to 50 ⁇ m, preferably about 10 ⁇ m to 35 ⁇ m. .
  • the adhesive layer 2 is a layer provided between the outer layer 1 and the intermediate layer 3 in order to firmly bond them.
  • the adhesive layer 2 is formed of an adhesive that can bond the outer layer 1 and the intermediate layer 3 together.
  • the adhesive used for forming the adhesive layer 2 may be a two-component curable adhesive or a one-component curable adhesive.
  • the bonding mechanism of the adhesive used for forming the adhesive layer 2 is not particularly limited, and may be any of a chemical reaction type, a solvent volatilization type, a heat melting type, a hot pressure type, and the like.
  • adhesive components that can be used to form the adhesive layer 2 include polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polyethylene isophthalate, polycarbonate, and copolyester; Polyether adhesive; Polyurethane adhesive; Epoxy resin; Phenol resin resin; Polyamide resin such as nylon 6, nylon 66, nylon 12, copolymer polyamide; polyolefin, carboxylic acid modified polyolefin, metal modified polyolefin, etc.
  • Polyolefin resins polyvinyl acetate resins, cellulose adhesives, (meth) acrylic resins, polyimide resins, urea resins, melamine resins and other amino resins, chloroprene rubber, nitrile rubber, - Len rubbers such as butadiene rubber, silicone-based resins.
  • These adhesive components may be used individually by 1 type, and may be used in combination of 2 or more type. Among these adhesive components, a polyurethane adhesive is preferable.
  • the thickness of the adhesive layer 2 is not particularly limited as long as the battery packaging material satisfies the above physical properties while exhibiting the function as the adhesive layer.
  • the thickness is about 1 ⁇ m to 10 ⁇ m, preferably 2 ⁇ m to 5 ⁇ m. Degree.
  • the intermediate layer 3 is made of a metal foil.
  • the intermediate layer 3 is a layer that functions as a barrier layer for preventing water vapor, oxygen, light, and the like from entering the battery, in addition to improving the strength of the battery packaging material.
  • Specific examples of the metal constituting the intermediate layer 3 include aluminum, stainless steel, and titanium, and preferably aluminum.
  • the intermediate layer 3 is more preferably composed of an aluminum foil.
  • annealed aluminum JIS H4160 A8021H-O, JIS H4160 A8079H-O, JIS H4000: It is more preferable to use a soft aluminum foil such as 2014 A8021P-O, JIS H4000: 2014 A8079P-O).
  • the thickness of the intermediate layer 3 is not particularly limited as long as it functions as a barrier layer such as water vapor, but can be, for example, about 10 ⁇ m to 50 ⁇ m, preferably about 10 ⁇ m to 35 ⁇ m.
  • the intermediate layer 3 is preferably subjected to chemical conversion treatment on at least one surface, preferably both surfaces, for the purpose of stabilizing adhesion, preventing dissolution and corrosion, and the like.
  • the chemical conversion treatment refers to a treatment for forming an acid-resistant film on the surface of the intermediate layer.
  • chromic acid compounds such as chromium nitrate, chromium fluoride, chromium sulfate, chromium acetate, chromium oxalate, chromium biphosphate, chromic acetyl acetate, chromium chloride, potassium sulfate chromium, etc.
  • X represents a hydrogen atom, a hydroxyl group, an alkyl group, a hydroxyalkyl group, an allyl group or a benzyl group.
  • R 1 and R 2 are the same or different and each represents a hydroxyl group, an alkyl group, or a hydroxyalkyl group.
  • examples of the alkyl group represented by X, R 1 and R 2 include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, Examples thereof include a linear or branched alkyl group having 1 to 4 carbon atoms such as a tert-butyl group.
  • Examples of the hydroxyalkyl group represented by X, R 1 and R 2 include a hydroxymethyl group, a 1-hydroxyethyl group, a 2-hydroxyethyl group, a 1-hydroxypropyl group, a 2-hydroxypropyl group, 3- A linear or branched chain having 1 to 4 carbon atoms substituted with one hydroxy group such as hydroxypropyl group, 1-hydroxybutyl group, 2-hydroxybutyl group, 3-hydroxybutyl group, 4-hydroxybutyl group An alkyl group is mentioned.
  • the alkyl group and hydroxyalkyl group represented by X, R 1 and R 2 may be the same or different.
  • X is preferably a hydrogen atom, a hydroxyl group or a hydroxyalkyl group.
  • the number average molecular weight of the aminated phenol polymer having the repeating units represented by the general formulas (1) to (4) is preferably, for example, from 500 to 1,000,000, and from about 1,000 to 20,000. Is more preferable.
  • a phosphoric acid is coated with a metal oxide such as aluminum oxide, titanium oxide, cerium oxide, tin oxide, or barium sulfate particles dispersed therein
  • a metal oxide such as aluminum oxide, titanium oxide, cerium oxide, tin oxide, or barium sulfate particles dispersed therein
  • a method of forming a corrosion-resistant layer on the surface of the intermediate layer 3 by performing a baking treatment at 150 ° C. or higher can be mentioned.
  • a resin layer obtained by crosslinking a cationic polymer with a crosslinking agent may be further formed on the corrosion-resistant treatment layer.
  • examples of the cationic polymer include polyethyleneimine, an ionic polymer complex composed of a polymer having polyethyleneimine and a carboxylic acid, a primary amine graft acrylic resin obtained by graft polymerization of a primary amine on an acrylic main skeleton, and polyallylamine. Or the derivative, aminophenol, etc. are mentioned.
  • these cationic polymers only one type may be used, or two or more types may be used in combination.
  • examples of the crosslinking agent include a compound having at least one functional group selected from the group consisting of an isocyanate group, a glycidyl group, a carboxyl group, and an oxazoline group, and a silane coupling agent. As these crosslinking agents, only one type may be used, or two or more types may be used in combination.
  • chemical conversion treatment only one type of chemical conversion treatment may be performed, or two or more types of chemical conversion processing may be performed in combination. Furthermore, these chemical conversion treatments may be carried out using one kind of compound alone, or may be carried out using a combination of two or more kinds of compounds.
  • chemical conversion treatments chromic acid chromate treatment, chromate treatment combining a chromic acid compound, a phosphoric acid compound, and an aminated phenol polymer are preferable.
  • the amount of acid-resistant coatings to be formed on the surface of the intermediate layer 3 in the chemical conversion treatment is not particularly limited, for example, in the case of performing the above-mentioned chromate treatment, the surface 1 m 2 per intermediate layer 3, chromic acid compounds About 0.5 mg to about 50 mg in terms of chromium, preferably about 1.0 mg to about 40 mg, phosphorus compound in terms of phosphorus, about 0.5 mg to about 50 mg, preferably about 1.0 mg to about 40 mg, and It is desirable that the aminated phenol polymer is contained in an amount of about 1 mg to about 200 mg, preferably about 5.0 mg to 150 mg.
  • a solution containing a compound used for forming an acid-resistant film is applied to the surface of the intermediate layer by a bar coating method, a roll coating method, a gravure coating method, a dipping method or the like, and then the temperature of the intermediate layer is 70. It is performed by heating so that the temperature is about 200 ° C. or higher.
  • the intermediate layer may be previously subjected to a degreasing treatment by an alkali dipping method, an electrolytic cleaning method, an acid cleaning method, an electrolytic acid cleaning method, or the like. By performing the degreasing process in this way, it is possible to more efficiently perform the chemical conversion process on the surface of the intermediate layer.
  • the inner layer 4 is made of a heat-fusible resin.
  • the inner layer 4 corresponds to the innermost layer, and is a layer in which the inner layers are thermally welded when the battery is assembled to seal the battery element.
  • the inner layer 4 includes a resin layer having a thickness of 20 ⁇ m or more, which is made of a resin having a melt viscosity of 150 Pa ⁇ sec or more and 900 Pa ⁇ sec or less at 170 ° C. and a rotation speed of 20 Pa under dry nitrogen. Yes.
  • the electrolytic solution is attached to the heat-welded portion of the inner layer.
  • the inner layer may be thermally welded.
  • the electrolyte solution located in the thermally welded portion is vaporized and formed by heating at the time of thermal welding (for example, a high temperature of 170 ° C. or higher). It is clear that the bubbles are formed in the melted inner layer, the bubbles grow large and reach the intermediate layer made of metal foil or the vicinity thereof, and the thickness of the inner layer of the heat welded portion is reduced. became.
  • the inner layer 4 includes the resin layer having the specific melt viscosity and thickness, so that the electrolyte is attached to the heat-welded portion of the inner layer.
  • the resin having a melt viscosity much lower than 150 Pa ⁇ sec is used for the inner layer in consideration of heat weldability.
  • the above melt viscosity is used. Is formed of a resin of 150 Pa ⁇ sec or more, and the inner layer 4 includes a resin layer having a thickness of 20 ⁇ m or more. For this reason, it can suppress effectively that the bubble of electrolyte solution grows in the inner layer 4 fuse
  • the inner layer 4 is composed of a single layer or multiple layers. As shown in FIGS. 1 and 2, the inner layer 4 is composed of one layer of the first heat-fusible resin layer 41, and the first heat-fusible resin layer 41 is composed of polypropylene. A mode in which the first heat-fusible resin layer 41 is the above-described resin layer is preferable.
  • the inner layer 4 includes a first heat-fusible resin layer 41 as the outermost layer opposite to the intermediate layer 3, and a second heat-adhesive resin layer 41 adjacent to the first heat-fusible resin layer 41.
  • the heat-fusible resin layer 42 is composed of two layers, the first heat-fusible resin layer 41 is composed of polypropylene, and the second heat-fusible resin layer 42 is the aforementioned resin layer. Some embodiments are preferred.
  • the inner layer 4 is adjacent to the first heat-fusible resin layer 41 and the first heat-fusible resin layer 41 as the outermost layer opposite to the intermediate layer 3.
  • the second heat-fusible resin layer 42 and the third heat-fusible resin layer 43 adjacent to the second heat-fusible resin layer 42, and the first heat-fusible resin layer 43.
  • 41 is made of polypropylene, and at least one of the second heat-fusible resin layer 42 and the third heat-fusible resin layer 43 is the above-described resin layer.
  • the total thickness of the inner layer 4 is not particularly limited, but is preferably 50 ⁇ m or less, more preferably about 23 ⁇ m or more and 46 ⁇ m or less from the viewpoint of exhibiting high insulation while thinning the battery packaging material.
  • the melt viscosity of the resin layer contained in the inner layer 4 is 150 Pa ⁇ sec or more, 900 Pa ⁇ sec or less, more preferably 160 Pa ⁇ sec or more, at 170 ° C. and a rotation speed of 20 rpm under dry nitrogen. 870 Pa ⁇ sec or less.
  • the melt viscosity of the resin layer is preferably 150 Pa ⁇ sec or more and 500 Pa ⁇ sec or less, more preferably 180 Pa ⁇ sec or more and 450 Pa ⁇ sec. sec or less.
  • the melt viscosity of the resin layer is preferably 500 Pa ⁇ sec or more and 900 Pa ⁇ sec or less, more preferably Examples include 600 Pa ⁇ sec or more and 870 Pa ⁇ sec or less.
  • the melt viscosity of the resin layer can be adjusted by the type of resin constituting the resin layer, the weight average molecular weight, the additive, and the like.
  • the melting point of the resin is a value measured by the DSC method in accordance with JIS K6921-2 (ISO 1873-2.2: 95).
  • the thickness of the resin layer may be 20 ⁇ m or more, preferably about 20 ⁇ m to 46 ⁇ m, more preferably about 20 ⁇ m to 30 ⁇ m.
  • At least one of the layers (for example, the first to third heat-fusible resin layers) included in the inner layer 4 constitutes a resin layer.
  • the inner layer 4 it is preferable that only one resin layer is provided.
  • the first heat-fusible resin layer 41 is located on the outermost layer on the side opposite to the intermediate layer 3 of the inner layer 4 and is a layer formed of polypropylene.
  • the first heat-fusible resin layer 41 is the aforementioned resin layer. That is, in this case, the first heat-fusible resin layer 41 is formed of a resin having a melt viscosity of 150 Pa ⁇ sec or more and 900 Pa ⁇ sec or less under dry nitrogen at 170 ° C. and a rotation speed of 20 rpm. 20 ⁇ m or more.
  • the first heat-fusible resin layer 41 is formed of polypropylene having a melt viscosity at 170 ° C. and a rotation speed of 20 rpm under dry nitrogen at 120 Pa ⁇ sec or less. It is preferable that In this case, the melt viscosity of polypropylene is preferably about 60 Pa ⁇ sec to 110 Pa ⁇ sec.
  • the melting point of the polypropylene constituting the first heat-fusible resin layer 41 is not particularly limited, but is preferably about 120 ° C to 160 ° C, more preferably about 135 ° C to 150 ° C.
  • the polypropylene constituting the first heat-fusible resin layer 41 is not particularly limited, and is a block copolymer of polypropylene (for example, a block copolymer of propylene and ethylene) or a random copolymer of polypropylene (for example, a random copolymer of propylene and ethylene). And a homopolymer of polypropylene. Among these, a random copolymer of polypropylene is preferable. Moreover, as a polypropylene, you may use individually by 1 type and may be used in combination of 2 or more types.
  • the thickness of the first heat-fusible resin layer 41 is not particularly limited.
  • the thickness of the first heat-fusible resin layer 41 corresponds to the total thickness of the inner layer 4 described above.
  • the thickness of the first heat-fusible resin layer 41 is not particularly limited, but is preferably about 20 ⁇ m or more and 50 ⁇ m or less, more preferably about 23 ⁇ m or more and 46 ⁇ m or less. Can be mentioned.
  • the second heat-fusible resin layer 42 is a first heat-fusible resin layer 41 as the outermost layer on the side opposite to the intermediate layer 3 when the heat-fusible resin layer 4 is composed of multiple layers. And adjacent layers.
  • the melt viscosity of the second heat-fusible resin layer 42 is not particularly limited, but when the second heat-fusible resin layer 42 is a resin layer, it becomes the melt viscosity of the resin layer.
  • the melting point of the resin constituting the second heat-fusible resin layer 42 is not particularly limited, but is preferably about 140 ° C. or more and 165 ° C. or less, more preferably about 150 ° C. or more and 160 ° C. or less.
  • the resin component used for the second heat-fusible resin layer 42 is not particularly limited as long as it can be heat-welded.
  • polystyrene resin examples include polyethylene such as low density polyethylene, medium density polyethylene, high density polyethylene, and linear low density polyethylene; homopolypropylene, polypropylene block copolymer (for example, block copolymer of propylene and ethylene), polypropylene And a random copolymer (eg, a random copolymer of propylene and ethylene); an ethylene-butene-propylene terpolymer; and the like.
  • polyethylene and polypropylene are preferable.
  • the cyclic polyolefin is a copolymer of an olefin and a cyclic monomer
  • examples of the olefin that is a constituent monomer of the cyclic polyolefin include ethylene, propylene, 4-methyl-1-pentene, styrene, butadiene, and isoprene. Is mentioned.
  • Examples of the cyclic monomer that is a constituent monomer of the cyclic polyolefin include cyclic alkenes such as norbornene; specifically, cyclic dienes such as cyclopentadiene, dicyclopentadiene, cyclohexadiene, and norbornadiene.
  • cyclic alkene is preferable, and norbornene is more preferable.
  • the carboxylic acid-modified polyolefin is a polymer modified by block polymerization or graft polymerization of the polyolefin with carboxylic acid.
  • Examples of the carboxylic acid used for modification include maleic acid, acrylic acid, itaconic acid, crotonic acid, maleic anhydride, itaconic anhydride and the like.
  • the carboxylic acid-modified cyclic polyolefin is obtained by copolymerizing a part of the monomer constituting the cyclic polyolefin in place of the ⁇ , ⁇ -unsaturated carboxylic acid or its anhydride, or by ⁇ , ⁇ with respect to the cyclic polyolefin.
  • the cyclic polyolefin to be modified with carboxylic acid is the same as described above.
  • the carboxylic acid used for modification is the same as that used for modification of the acid-modified cycloolefin copolymer.
  • the second heat-fusible resin layer 42 may be formed of one kind of resin component alone, or may be formed of a blend polymer in which two or more kinds of resin components are combined.
  • the second heat-fusible resin layer 42 is made of the above-described carboxylic acid-modified polyolefin. It is preferably formed from a carboxylic acid-modified cyclic polyolefin. Further, when the heat-fusible resin layer 4 further has another layer (for example, the third heat-fusible resin layer 43) constituting the inner layer 4 on the intermediate layer 3 side, the second heat-fusible resin layer 4 is provided.
  • the conductive resin layer 42 is preferably formed of the aforementioned polyolefin, cyclic polyolefin, or the like.
  • the thickness of the second heat-fusible resin layer 42 is not particularly limited, but is preferably about 20 ⁇ m to 46 ⁇ m, and more preferably about 20 ⁇ m to 30 ⁇ m.
  • the third heat-fusible resin layer 43 is a layer adjacent to the second heat-fusible resin layer when the heat-fusible resin layer 4 is composed of three or more layers.
  • the melt viscosity of the third heat-fusible resin layer 43 is not particularly limited, but when the third heat-fusible resin layer 43 is a resin layer, it becomes the melt viscosity of the resin layer.
  • the melting point of the resin constituting the third heat-fusible resin layer 43 is not particularly limited, but is preferably about 120 ° C. to 160 ° C., more preferably about 135 ° C. to 150 ° C.
  • the resin component used for the third heat-fusible resin layer 43 is not particularly limited as long as it can be heat-welded, and is the same as that exemplified in the second heat-fusible resin layer 42 described above. Can be illustrated.
  • the third heat-fusible resin layer 43 When the third heat-fusible resin layer 43 is adjacent to the intermediate layer 3, the third heat-fusible resin layer 43 has the above-described carboxylic acid modification since it has high adhesion to the intermediate layer 3. It is preferably formed from an acid-modified polyolefin such as polyolefin or carboxylic acid-modified cyclic polyolefin.
  • the thickness of the third heat-fusible resin layer 43 is not particularly limited, but is preferably about 3 ⁇ m to 15 ⁇ m, more preferably about 3 ⁇ m to 10 ⁇ m.
  • the inner layer 4 When the inner layer 4 is formed of four or more layers, in addition to the first to third heat-fusible resin layers, the inner layer 4 further includes a fourth heat-fusible resin layer, a fifth heat-fusible resin layer, and the like. Other layers may be included. The configuration of the other layers can be the same as that of the third heat-fusible resin layer.
  • an adhesive layer 5 is further provided between the intermediate layer 3 and the inner layer 4 as necessary for the purpose of firmly bonding the intermediate layer 3 and the inner layer 4. Also good.
  • the adhesive layer 5 is formed of an adhesive component capable of bonding the intermediate layer 3 and the inner layer 4.
  • the adhesive used for forming the adhesive layer 5 may be a two-component curable adhesive or a one-component curable adhesive. Moreover, it does not specifically limit about the adhesion
  • the inner layer 4 When the inner layer 4 is laminated on the intermediate layer 3 in the form of a laminated film, it is preferable to bond the intermediate layer 3 and the inner layer 4 via the adhesive layer 5.
  • the inner layer 4 when the inner layer 4 is formed of three or more layers, the inner layer 4 is preferably laminated on the intermediate layer 3 as a laminated film of three or more layers. For this reason, it can be said that it is preferable to have the adhesive layer 5 when the inner layer 4 is composed of three or more layers.
  • the thickness of the adhesive layer 5 is not particularly limited, but is preferably about 1 ⁇ m to 10 ⁇ m, and more preferably about 2 ⁇ m to 5 ⁇ m.
  • the outer layer 1 (as opposed to the intermediate layer 3 of the outer layer 1) may be used as necessary for the purpose of improving design properties, electrolytic solution resistance, scratch resistance, moldability, and the like.
  • a surface coating layer (not shown) may be provided if necessary.
  • a surface coating layer is a layer located in the outermost layer when a battery is assembled.
  • the surface coating layer can be formed of, for example, polyvinylidene chloride, polyester resin, urethane resin, acrylic resin, epoxy resin, or the like. Of these, the surface coating layer is preferably formed of a two-component curable resin. Examples of the two-component curable resin that forms the surface coating layer include a two-component curable urethane resin, a two-component curable polyester resin, and a two-component curable epoxy resin. Moreover, you may mix
  • Examples of the matting agent include fine particles having a particle size of about 0.5 nm to 5 ⁇ m.
  • the material of the matting agent is not particularly limited, and examples thereof include metals, metal oxides, inorganic substances, and organic substances.
  • the shape of the matting agent is not particularly limited, and examples thereof include a spherical shape, a fiber shape, a plate shape, an indeterminate shape, and a balloon shape.
  • Specific examples of the matting agent include talc, silica, graphite, kaolin, montmorilloid, montmorillonite, synthetic mica, hydrotalcite, silica gel, zeolite, aluminum hydroxide, magnesium hydroxide, zinc oxide, magnesium oxide, and aluminum oxide.
  • These matting agents may be used individually by 1 type, and may be used in combination of 2 or more type. Among these matting agents, silica, barium sulfate, and titanium oxide are preferable from the viewpoint of dispersion stability and cost.
  • the matting agent may be subjected to various surface treatments such as insulation treatment and high dispersibility treatment on the surface.
  • the method for forming the surface coating layer is not particularly limited, and examples thereof include a method of applying a two-component curable resin for forming the surface coating layer on one surface of the outer layer 1.
  • the matting agent may be added to the two-component curable resin, mixed, and then applied.
  • the thickness of the surface coating layer is not particularly limited as long as the battery packaging material satisfies the above physical properties while exhibiting the above function as the surface coating layer.
  • the thickness is about 0.5 ⁇ m to 10 ⁇ m, preferably 1 ⁇ m. For example, about 5 ⁇ m or less.
  • the production method of the battery packaging material of the present invention is not particularly limited as long as a laminate in which layers of a predetermined composition are laminated is obtained. At least the outer layer 1 and the intermediate layer 3 And a single-layer or multiple-layer inner layer 4 are laminated in this order to obtain a laminated body.
  • a resin layer having a melt viscosity of 150 Pa ⁇ sec or more and 900 Pa ⁇ sec or less under dry nitrogen at 170 ° C. and a rotation speed of 20 rpm and having a thickness of 20 ⁇ m or more is provided.
  • the battery packaging material of the present invention can be manufactured by laminating each layer using the inner layer 4 described in the section “2. Each layer forming the battery packaging material”.
  • laminated body A a laminated body in which the outer layer 1, the adhesive layer 2, and the intermediate layer 3 are laminated in order
  • laminate A is formed by applying an adhesive used for forming the adhesive layer 2 on the outer layer 1 or the intermediate layer 3 whose surface is subjected to chemical conversion treatment, if necessary, by gravure coating, roll coating
  • a coating method such as a method
  • the intermediate layer 3 or the outer layer 1 can be laminated and the adhesive layer 2 can be cured by a dry lamination method.
  • the inner layer 4 is laminated on the intermediate layer 3 of the laminate A.
  • the resin component constituting the inner layer 4 may be applied on the intermediate layer 3 of the laminate A by a method such as gravure coating or roll coating.
  • the adhesive layer 5 is provided between the intermediate layer 3 and the inner layer 4, for example, (1) a method of laminating the adhesive layer 5 and the inner layer 4 on the intermediate layer 3 of the laminate A by coextrusion.
  • the surface coating layer is laminated on the surface of the outer layer 1 opposite to the intermediate layer 3.
  • the surface coating layer can be formed, for example, by applying the above-described resin forming the surface coating layer to the surface of the outer layer 1.
  • the order of the step of laminating the intermediate layer 3 on the surface of the outer layer 1 and the step of laminating the surface coating layer on the surface of the outer layer 1 are not particularly limited.
  • the intermediate layer 3 may be formed on the surface of the outer layer 1 opposite to the surface coating layer.
  • surface coating layer provided as necessary / outer layer 1 / adhesive layer 2 provided as needed / intermediate layer 3 having a surface subjected to chemical conversion treatment as needed / provided as needed A laminate composed of the adhesive layer 5 / inner layer 4 is formed.
  • a hot roll contact type, a hot air type You may use for near- or far-infrared type heat processing. Examples of such heat treatment conditions include 150 ° C. or more and 250 ° C. or less and 1 minute or more and 5 minutes or less.
  • each layer constituting the laminate improves or stabilizes film forming properties, lamination processing, suitability for final processing (pouching, embossing), etc., as necessary. Therefore, surface activation treatment such as corona treatment, blast treatment, oxidation treatment, ozone treatment may be performed.
  • the battery packaging material of the present invention is used as a packaging material for sealing and housing battery elements such as a positive electrode, a negative electrode, and an electrolyte.
  • a battery element including at least a positive electrode, a negative electrode, and an electrolyte is formed using the battery packaging material of the present invention, with the metal terminals connected to each of the positive electrode and the negative electrode protruding outward.
  • a battery using a battery packaging material is provided by covering the periphery of the element so that a flange portion (region where the inner layers are in contact with each other) can be formed and heat sealing the inner layers of the flange portion.
  • the battery packaging material of the present invention is used such that the sealant portion is on the inner side (surface in contact with the battery element).
  • the battery packaging material of the present invention may be used for either a primary battery or a secondary battery, but is preferably a secondary battery.
  • the type of secondary battery to which the battery packaging material of the present invention is applied is not particularly limited.
  • a lithium ion battery, a lithium ion polymer battery, a lead battery, a nickel / hydrogen battery, a nickel / cadmium battery , Nickel / iron livestock batteries, nickel / zinc livestock batteries, silver oxide / zinc livestock batteries, metal-air batteries, polyvalent cation batteries, capacitors, capacitors and the like are suitable applications for the battery packaging material of the present invention.
  • the melting point and melt viscosity of the resin constituting the inner layer are values measured by the following methods, respectively.
  • ⁇ Measurement of melting point> It is a value measured by the DSC method in accordance with JIS K6921-2 (ISO 1873-2.2: 95).
  • ⁇ Measurement of melting temperature> Using MiniLab manufactured by HAAKE, a melt viscosity of 7.5 g of a resin sample was measured at 170 ° C. and a rotation speed of 20 rpm under dry nitrogen.
  • Examples 1 to 6 and Comparative Examples 1 to 4> On a nylon film (thickness 25 ⁇ m) as an outer layer, an intermediate layer made of aluminum foil (thickness 30 ⁇ m) subjected to chemical conversion treatment on both surfaces was laminated by a dry laminating method. Specifically, an adhesive (polyol compound and aromatic isocyanate compound) was applied to one surface of the aluminum foil, and an adhesive layer (thickness 3 ⁇ m) was formed on the intermediate layer. Subsequently, after laminating the adhesive layer and the outer layer on the intermediate layer, an aging treatment was carried out at 40 ° C. for 24 hours to prepare an outer layer / adhesive layer / intermediate layer laminate.
  • an adhesive polyol compound and aromatic isocyanate compound
  • the chemical conversion treatment of the aluminum foil used as the intermediate layer is performed by roll coating a treatment liquid composed of a phenol resin, a chromium fluoride compound, and phosphoric acid so that the coating amount of chromium is 10 mg / m 2 (dry weight).
  • the coating was performed on both surfaces of the aluminum foil by the method and baked for 20 seconds under the condition that the film temperature was 180 ° C. or higher.
  • Example 1 a carboxylic acid-modified polypropylene (disposed on the intermediate layer side) as a second heat-fusible resin layer on the intermediate layer of the laminate
  • the outer layer / adhesive layer / intermediate layer / second heat-fusible resin layer / first heat-fusible resin layer by coextruding random polypropylene (innermost layer) as the first heat-fusible resin layer was obtained.
  • the outer layer / adhesive layer / intermediate layer / first layer is obtained by melt-extruding random polypropylene (the innermost layer) as the first heat-fusible resin layer on the intermediate layer of the laminate.
  • a battery packaging material having a heat-sealable resin layer laminated thereon was obtained.
  • the carboxylic acid-modified polypropylene as the second heat-fusible resin layer and the random polypropylene as the first heat-fusible resin layer have melting points, melt viscosities, and thicknesses shown in Table 1, respectively.
  • Examples 7 and 8 and Comparative Examples 5 and 6> In the same manner as in Examples 1 to 6 and Comparative Examples 1 to 4, laminates of outer layer / adhesive layer / intermediate layer were produced. Next, in Examples 7 and 8, a three-layer polypropylene film having the melting point, melt viscosity, and thickness shown in Table 2 (first heat-fusible resin layer / second heat-fusible resin layer / (Having a laminated structure of a third heat-fusible resin layer). Next, the third sealant side of the polypropylene film and the intermediate layer of the laminate are adhered using an adhesive, and the outer layer / adhesive layer / intermediate layer / adhesive layer / third heat-fusible resin layer.
  • Example 7 and Comparative Example 5 A battery packaging material in which / second heat-fusible resin layer / first heat-fusible resin layer was laminated was obtained.
  • the adhesive layer between the intermediate layer and the third heat-fusible resin layer is a carboxylic acid-modified polypropylene. (15 ⁇ m), Example 8 and Comparative Example 6 were formed using a resin (3 ⁇ m) obtained by crosslinking an epoxy resin with an acid-modified polypropylene resin.
  • the polypropylene film having a three-layer structure of Example 7 and Example 8 was a three-layer co-pressed film of random polypropylene (2.5 ⁇ m) / block polypropylene (20 ⁇ m) / random polypropylene (2.5 ⁇ m).
  • the polypropylene film having the three-layer structure and the intermediate layer of the laminate were laminated by the sandwich lamination method in Example 7, and were laminated by the dry lamination method in Example 8.
  • the battery packaging materials of Examples 1 to 8 and Comparative Examples 1 to 6 were evaluated for insulation properties according to the following procedure.
  • the battery packaging material was cut into 60 mm (MD direction) ⁇ 60 mm (TD direction) sheet pieces. Next, these sheet pieces were folded in the MD direction, and two opposing sides were heat-sealed with a width of 7 mm to prepare a pouch-type exterior body having an opening on one side. Next, the obtained exterior body is sealed with a lithium ion battery main body including cells so that the metal terminal extends to the outside from one side of the opening, and the opening is formed while holding the metal terminal with the electrolytic solution.
  • a lithium ion battery was produced by hermetically sealing with a width of 3 mm.
  • the heat sealing was performed under conditions of a surface pressure of 1.0 MPa, a sealing temperature of 170 ° C., and a sealing time of 3.0 seconds.
  • the insulation evaluation test with respect to foaming was implemented using the insulation resistance testing machine 3154 made from HIOKI.
  • 10 lithium ion batteries are prepared, and one terminal of the tester is connected to the negative electrode terminal of each lithium ion battery, and the other terminal is connected to the peripheral heat seal portion of the battery exterior material with an intermediate layer of aluminum. Each was connected so as to contact the foil.
  • a voltage of 25 V was applied between the testers, and after 5 seconds, a test piece having a resistance value of 200 M ⁇ or more and 7 or more was regarded as acceptable (OK).
  • the thing less than 7 was set as the rejection (NG).
  • the results are shown in Tables 1 and 2.
  • the parentheses in the insulation evaluation indicate actual measurement values of the number of resistance values of 200 M ⁇ or more among the 10 lithium ion batteries.
  • 8 out of 10 have a resistance value of 200 M ⁇ or more.
  • the inner layer is a resin layer having a thickness of 20 ⁇ m or more formed of a resin having a melt viscosity of 150 Pa ⁇ sec or more and 900 Pa ⁇ sec or less under dry nitrogen at 170 ° C. and a rotation speed of 20 rpm.
  • the insulating material It turns out that it is excellent in.
  • the battery packaging materials of Comparative Examples 1 to 6 having no resin layer having such a specific melt viscosity in the inner layer were inferior in insulation properties to Examples 1 to 8.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

L'invention fournit un matériau d'enveloppe pour batterie dont les propriétés isolantes sont élevées. Ce matériau d'enveloppe pour batterie est constitué d'un stratifié qui est équipé dans l'ordre dans sa direction épaisseur : d'une couche externe ; d'une couche intermédiaire configurée par une feuille métallique, et d'une couche interne configurée par une résine thermiquement adhésive. Ladite couche interne est équipée d'une couche de résine dont l'épaisseur est supérieure ou égale à 20μｍ, et qui est configurée par une résine dont la viscosité à l'état fondu dans un azote sec, à 170°C et à une vitesse de rotation de 20rpm, est supérieure ou égale à 150Pa.sec et inférieure ou égale à 900Pa.sec.
PCT/JP2016/060654 2015-03-31 2016-03-31 Matériau d'enveloppe pour batterie, procédé de fabrication de celui-ci, et batterie WO2016159233A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017510186A JP6939545B2 (ja) 2015-03-31 2016-03-31 電池用包装材料、その製造方法、及び電池

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-073330 2015-03-31
JP2015073330 2015-03-31

Publications (1)

Publication Number Publication Date
WO2016159233A1 true WO2016159233A1 (fr) 2016-10-06

Family

ID=57004692

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/060654 WO2016159233A1 (fr) 2015-03-31 2016-03-31 Matériau d'enveloppe pour batterie, procédé de fabrication de celui-ci, et batterie

Country Status (2)

Country Link
JP (1) JP6939545B2 (fr)
WO (1) WO2016159233A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017195112A (ja) * 2016-04-21 2017-10-26 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
CN108615828A (zh) * 2018-03-30 2018-10-02 北京国能电池科技股份有限公司 锂离子电池封装膜、锂离子电池封装方法及其制备的锂离子电池

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921565U (ja) * 1982-07-30 1984-02-09 凸版印刷株式会社 扁平薄型リチウム電池用外被包材
JPS60220553A (ja) * 1984-04-16 1985-11-05 Matsushita Electric Ind Co Ltd 扁平型非水電解液電池
JPS60221952A (ja) * 1984-04-19 1985-11-06 Toppan Printing Co Ltd 扁平薄型非水電解液リチウム電池
JPH10152169A (ja) * 1996-11-20 1998-06-09 Sumitomo Bakelite Co Ltd 医薬品包装容器
JP2014063587A (ja) * 2012-09-20 2014-04-10 Toppan Printing Co Ltd リチウムイオン電池用外装材及びそれを用いたリチウムイオン電池
JP2014199761A (ja) * 2013-03-29 2014-10-23 凸版印刷株式会社 外装材、蓄電池、及び外装材の製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS625556A (ja) * 1985-06-28 1987-01-12 Toppan Printing Co Ltd 扁平型非水電解液電池
JP2002343313A (ja) * 2001-05-15 2002-11-29 Dainippon Printing Co Ltd 電池用包装材料
WO2014178343A1 (fr) * 2013-05-01 2014-11-06 大倉工業株式会社 Matériau de conditionnement de batterie

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921565U (ja) * 1982-07-30 1984-02-09 凸版印刷株式会社 扁平薄型リチウム電池用外被包材
JPS60220553A (ja) * 1984-04-16 1985-11-05 Matsushita Electric Ind Co Ltd 扁平型非水電解液電池
JPS60221952A (ja) * 1984-04-19 1985-11-06 Toppan Printing Co Ltd 扁平薄型非水電解液リチウム電池
JPH10152169A (ja) * 1996-11-20 1998-06-09 Sumitomo Bakelite Co Ltd 医薬品包装容器
JP2014063587A (ja) * 2012-09-20 2014-04-10 Toppan Printing Co Ltd リチウムイオン電池用外装材及びそれを用いたリチウムイオン電池
JP2014199761A (ja) * 2013-03-29 2014-10-23 凸版印刷株式会社 外装材、蓄電池、及び外装材の製造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017195112A (ja) * 2016-04-21 2017-10-26 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
CN108615828A (zh) * 2018-03-30 2018-10-02 北京国能电池科技股份有限公司 锂离子电池封装膜、锂离子电池封装方法及其制备的锂离子电池

Also Published As

Publication number Publication date
JP6939545B2 (ja) 2021-09-22
JPWO2016159233A1 (ja) 2018-01-25

Similar Documents

Publication Publication Date Title
JP6988933B2 (ja) 電池用包装材料
EP3043399B1 (fr) Composition de résine pour couche d'étanchéité de matériau d'emballage de batterie
JP6596869B2 (ja) 金属端子用接着性フィルム
WO2015087901A1 (fr) Matériau de conditionnement pour une batterie
JP6657732B2 (ja) 金属端子用接着性フィルム
JP6446950B2 (ja) 電池用包装材料
WO2016159190A1 (fr) Matériau d'emballage de pile, son procédé de fabrication, et pile
JP7314970B2 (ja) 電池用包装材料、その製造方法及び電池
WO2017188445A1 (fr) Matériau d'encapsulation de batterie et batterie
JP6900648B2 (ja) 電池用包装材料、その製造方法、及び電池
WO2016158796A1 (fr) Matériau de conditionnement pour des batteries, procédé de fabrication de ce dernier et batterie
JP2017139120A (ja) 金属端子用接着性フィルム
JP2019117702A (ja) 電池用包装材料及び電池
JP6721870B2 (ja) 電池用包装材料
JP6736837B2 (ja) 電池用包装材料
JP2017139121A (ja) 金属端子用接着性フィルム
WO2021006351A1 (fr) Film adhésif pour bornes métalliques, borne métallique avec film adhésif pour bornes métalliques, dispositif de stockage d'électricité utilisant ledit film adhésif pour bornes métalliques et procédé de production de dispositif de stockage d'électricité
WO2016159233A1 (fr) Matériau d'enveloppe pour batterie, procédé de fabrication de celui-ci, et batterie
JP6627908B2 (ja) 電池用包装材料
JP2016192404A (ja) 電池用包装材料、その製造方法及び電池
JP6326788B2 (ja) 電池用包装材料
JP6319387B2 (ja) 電池用包装材料
JP2017147225A (ja) 電池用包装材料、その製造方法、及び電池
WO2019124282A1 (fr) Matériau d'enveloppe de batterie, et batterie
WO2023243696A1 (fr) Matériau extérieur pour dispositif de stockage d'énergie, son procédé de production, et dispositif de stockage d'énergie

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16773113

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017510186

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16773113

Country of ref document: EP

Kind code of ref document: A1