CN108886116A - Battery use packing material, its manufacturing method and battery - Google Patents

Battery use packing material, its manufacturing method and battery Download PDF

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Publication number
CN108886116A
CN108886116A CN201780023320.0A CN201780023320A CN108886116A CN 108886116 A CN108886116 A CN 108886116A CN 201780023320 A CN201780023320 A CN 201780023320A CN 108886116 A CN108886116 A CN 108886116A
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CN
China
Prior art keywords
layer
packing material
use packing
battery use
lubrication prescription
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Granted
Application number
CN201780023320.0A
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Chinese (zh)
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CN108886116B (en
Inventor
天野真
山下力也
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.)
Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Priority to CN202111454637.4A priority Critical patent/CN114156573A/en
Publication of CN108886116A publication Critical patent/CN108886116A/en
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Publication of CN108886116B publication Critical patent/CN108886116B/en
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Classifications

    • 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
    • H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
    • H01M50/129—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers with two or more layers of only organic material
    • 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
    • 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
    • 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
    • B32B15/09—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 polyesters
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • 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
    • B32B2457/00—Electrical equipment
    • B32B2457/10—Batteries
    • 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

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  • 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)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

The present invention provides the battery use packing material for having the continuous production of high mouldability and battery excellent.The battery use packing material includes the laminated body at least successively with substrate layer, barrier layer and heat sealability resin layer, at least the above-mentioned substrate layer side of above-mentioned laminated body surface there are lubrication prescription, the lubrication prescription amount on the surface of the above-mentioned heat sealability resin layer of the lubrication prescription amount and above-mentioned laminated body on the surface of the above-mentioned substrate layer side of above-mentioned laminated body adds up to 15mg/m2Above, 60mg/m2Below.

Description

Battery use packing material, its manufacturing method and battery
Technical field
The present invention relates to battery use packing material, its manufacturing method and batteries.
Background technique
In the past, various types of batteries are developed, in all batteries, for the battery member of encapsulated electrode or electrolyte etc. Part, packaging material is at an indispensable part.In the past, as battery package body, metal packaging material is used mostly, But in recent years, the high performance of adjoint electric car, mixed power electric car, PC, camera, portable phone etc., To the shape of battery request multiplicity, and require slimming, lighting.However, at the metal battery used mostly in the past With in packaging material, it is difficult to follow the diversification of shape, and there are also lightings also conditional disadvantage.
Therefore, as be easily worked for various shapes and may be implemented slimming, lighting battery use packing material, Proposing successively lamination has substrate layer/membranaceous laminated body of adhesive layer/barrier layer/heat sealability resin layer (for example, referring to special Sharp document 1).Such membranaceous battery use packing material is formed to by making heat sealability resin layer opposite to each other and benefit Peripheral part thermal welding is set to encapsulate cell device with heat-sealing.
It in battery use packing material, in enclosed cell device, is molded with a mold, forms the sky of storage cell device Between.In the molding, exist since battery use packing material is stretched, is easy to generate in barrier layer in the flange part of mold and split The problem of line, pin hole.In order to solve the problems, it is known to pass through the heat sealability resin layer in battery use packing material Surface coating lubrication prescription cooperates lubrication prescription in heat sealability resin layer and makes it in surface exudation etc., to improve battery package material The method of the sliding property of material.By using such method, at the time of molding, so that battery use packing material is easy to be introduced into mold In, it is able to suppress crackle, the pin hole of battery use packing material.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2008-287971 bulletin
Summary of the invention
Technical problems to be solved by the inivention
It is excessive if there is the amount of the lubrication prescription on the surface of the heat sealability resin layer in battery use packing material, then exist and slides The problem of agent is attached to mold, forms block and pollutes mold.To other battery use packing materials in the contaminated situation of mold When being formed, the block for being attached to the lubrication prescription of mold is attached to the surface of battery use packing material, with this state for thermal welding The thermal welding of property resin layer.In this way, the melting for adhering to the part of lubrication prescription is uneven when making heat sealability resin layer thermal welding, Therefore poor sealing occurs.In order to prevent this situation, the cleaning frequency for removing the lubrication prescription for being attached to mold must be increased, There are problems that the continuous production of battery reduces.
On the other hand, very few if there is the amount of the lubrication prescription in the surface of battery use packing material, then battery package material The sliding property of material reduces, and there are problems that the mouldability of battery use packing material reduces.
In such a case, the main purpose of the present invention is to provide a kind of companies with high mouldability and battery The excellent battery use packing material of continuous productivity.
For solving the technical solution of technical problem
In order to solve the above-mentioned technical problem the present inventor has made intensive studies.Itself as a result, it has been found that, including at least Successively there is substrate layer, the laminated body of barrier layer and heat sealability resin layer, at least in the above-mentioned substrate layer side of above-mentioned laminated body There are lubrication prescription, the above-mentioned hot melt of the lubrication prescription amount on the surface of the above-mentioned substrate layer side of above-mentioned laminated body and above-mentioned laminated body on surface The lubrication prescription amount on the surface of connecing property resin layer adds up to 15mg/m2Above, 60mg/m2Battery use packing material below has height Mouldability, and the continuous production of battery is excellent, forms the battery use packing material for being suitable for the manufacture of battery.The present invention is Based on these opinions, by further repeating what research was completed.
That is, the present invention provides the battery use packing material and battery of following shown modes.
1. a kind of battery use packing materials of item comprising at least successively there is substrate layer, barrier layer and heat sealability resin The laminated body of layer,
At least the above-mentioned substrate layer side of above-mentioned laminated body surface there are lubrication prescription,
The lubrication prescription amount on the surface of the above-mentioned substrate layer side of above-mentioned laminated body and the above-mentioned heat sealability resin of above-mentioned laminated body The lubrication prescription amount on the surface of layer adds up to 15mg/m2Above, 60mg/m2Below.
2. battery use packing materials as described in item 1 of item, wherein be present in the table of the above-mentioned substrate layer side of above-mentioned laminated body The lubrication prescription amount in face is 3mg/m2Above, 15mg/m2Below.
3. battery use packing materials as described in item 1 or 2 of item, wherein be present in the above-mentioned heat sealability of above-mentioned laminated body The lubrication prescription amount on the surface of resin layer is 10mg/m2Above, 50mg/m2Below.
4. battery use packing materials as described in any one of item 1 of item, wherein above-mentioned substrate layer has by polyester shape At layer and at least one of the layer that is formed by polyamide layer.
5. battery use packing material as described in any one of item 1~4, wherein in above-mentioned substrate layer and above-mentioned resistance Interlayer opposite side has surface coating layer.
Battery use packing material of the item 6. as described in any one of item 1~5, wherein above-mentioned lubrication prescription includes amide system lubrication prescription.
Battery use packing material of the item 7. as described in any one of item 1~6, wherein above-mentioned heat sealability resin layer has The layer formed by polyolefin.
Battery use packing material of the item 8. as described in any one of item 1~7, wherein at least one of above-mentioned barrier layer Face has substrate skin membrane.
Battery use packing material of the item 9. as described in any one of item 1~8 is the packaging material of secondary cell.
10. it is a kind of be accommodated in the package body that the battery use packing material as described in any one of item 1~9 is formed to The battery of few cell device including anode, cathode and electrolyte.
A kind of 11. manufacturing methods of battery use packing material, including at least successively laminated substrate layer, barrier layer and hot melt The process of connecing property resin layer,
Make lubrication prescription present at least at the surface of the above-mentioned substrate layer side of above-mentioned laminated body, and by the above-mentioned of above-mentioned laminated body The total of lubrication prescription amount on the surface of the above-mentioned heat sealability resin layer of the lubrication prescription amount and above-mentioned laminated body on the surface of substrate layer side sets For 15mg/m2Above, 60mg/m2Below.
The manufacturing method of battery use packing material of the item 12. as described in item 11, further includes at least one to above-mentioned substrate layer The process that Corona discharge Treatment is implemented on a surface.
The effect of invention
In accordance with the invention it is possible to provide the continuous production with high mouldability and battery excellent battery package Material.
Detailed description of the invention
Fig. 1 is the schematic diagram for indicating an example of cross section structure of battery use packing material of the present invention.
Fig. 2 is the schematic diagram for indicating an example of cross section structure of battery use packing material of the present invention.
Fig. 3 is the schematic diagram for indicating an example of cross section structure of battery use packing material of the present invention.
Fig. 4 is the schematic diagram for indicating an example of cross section structure of battery use packing material of the present invention.
Fig. 5 is the schematic diagram for indicating the crystal grain and Second Phase Particle of the thickness direction of aluminum alloy foil layers.
Specific embodiment
Battery use packing material of the invention, which is characterised by comprising, at least successively has substrate layer, barrier layer and hot melt The laminated body of connecing property resin layer, at least on the surface of the above-mentioned substrate layer side of above-mentioned laminated body, there are lubrication prescription, the bases of laminated body The lubrication prescription amount on the surface of the heat sealability resin layer of the lubrication prescription amount and laminated body on the surface of material layer side adds up to 15mg/m2With Upper, 60mg/m2Below.
Hereinafter, battery use packing material of the invention is described in detail.
1. the laminated construction of battery use packing material
As shown in Figure 1, battery use packing material of the invention includes at least successively having substrate layer 1, barrier layer 3 and hot melt The laminated body of connecing property resin layer 4.In battery use packing material of the invention, substrate layer 1 becomes outermost layer side, heat sealability tree Rouge layer 4 becomes innermost layer.That is, in assembled battery, by making the heat sealability resin layer 4 of the periphery positioned at cell device each other Thermal welding and sealed cell element, thus encapsulate cell device.
As shown in Fig. 2, in battery use packing material 10 of the invention, between substrate layer 1 and barrier layer 3, to improve it Cementability for the purpose of, can according to need setting adhesive layer 2.In addition, as shown in figure 3, battery package of the invention In material 10, between barrier layer 3 and heat sealability resin layer 4, for the purpose of the cementability for improving them, it can according to need Adhesive layer 5 is set.In addition, as shown in figure 4, surface coating layer 6 can be formed on the surface of 1 side of substrate layer.
It as the thickness for the laminated body for constituting battery use packing material 10 of the present invention, is not particularly limited, from using battery The thickness of packaging material is thinning and improves the energy density of battery and forms the sight of the excellent battery use packing material of mouldability Point considers, for example, can enumerate about 150 μm or less, be preferably listed about 120 μm or less, it is more preferable enumerate 50 μm or more 100 μm with Lower left and right further preferably enumerates 50 μm or more 80 μm or less Zuo You.
In battery use packing material 10 of the invention, on the surface of substrate layer 1, there are lubrication prescription, also, constitute battery and use The cunning on the surface of the heat sealability resin layer of the lubrication prescription amount and laminated body on the surface of the substrate layer side of the laminated body of packaging material 10 Dosage adds up to 15mg/m2Above, 60mg/m2Below.In battery use packing material of the invention, by 1 table of substrate layer Face is there are lubrication prescription and is in the lubrication prescription amount for being present in the surface of battery use packing material 10 in this particular range, by This is with high mouldability, and the continuous production of battery is excellent.The detailed content of the mechanism is not intended to do limited Explanation, however it is contemplated that as follows.That is, it is considered that being there are the total amounts of lubrication prescription and lubrication prescription on the surface of substrate layer 1 15mg/m2When above, the sliding property of mold and battery use packing material is improved, when with formpiston drawing and forming, battery package material Material is easily pulled into, therefore is able to carry out deep drawing molding, it is not easy to pin hole, fracture occur.On the other hand, it is believed that logical Cross the total amount 60mg/m for making lubrication prescription2Hereinafter, the lubrication prescription in the continuous production of battery is effectively inhibited to be deposited in used in molding Mold, it is not easy to which the lubrication prescription adhered to is retransferred to battery use packing material, is easy to avoid poor attachment when heat-sealing.
It is set as 15mg/m as by above-mentioned the total of lubrication prescription amount2Above, 60mg/m2The method of range below, Ke Yilie It lifts：In the method for the surface coating lubrication prescription of 1 side of substrate layer, 4 side of heat sealability resin layer；In the layer (example for constituting 1 side of substrate layer Such as, substrate layer 1 or surface coating layer 6), in the resin of heat sealability resin layer 4 containing lubrication prescription and heated, thus make lubrication prescription In the method for surface exudation.
The battery use packing material for having the continuous production of further high mouldability and battery excellent from formation From the viewpoint of, the surface of the heat sealability resin layer of the lubrication prescription amount and laminated body on the surface of the substrate layer side as laminated body Lubrication prescription amount adds up to, and 20mg/m is preferably listed in lower limit2Above, it more preferably enumerates more than 40mg/m2, 50mg/m is preferably listed in the upper limit2 Below.In addition, total preferred scope as the lubrication prescription amount, can enumerate 20mg/m2Above and 50mg/m2Below, it is more than 40mg/m2It and is 50mg/m2Below.Additionally, there are the types of the lubrication prescription in the surface of laminated body can enumerate in aftermentioned substrate The lubrication prescription illustrated in layer 1.In addition, the measuring method of the lubrication prescription amount on the surface as laminated body, for the rule on the surface to laminated body Determine area solvent washing, lubrication prescription amount contained by (solvent) in obtained cleaning solution is used into gas chromatography mass analysis meter (GC-MS) value obtained from carrying out quantitatively.
In addition, being 3mg/m by the lubrication prescription amount on the surface for the substrate layer side for being present in laminated body2Above and 15mg/m2With Under and the lubrication prescription amount on the surface of the heat sealability resin layer of the lubrication prescription amount and laminated body on the surface of the substrate layer side of laminated body Add up to more than 40mg/m2, preferably more than 40mg/m2It and is 50mg/m2Hereinafter, can be improved the molding of battery use packing material The continuous production of property and battery, and improve the lettering characteristic on the surface of substrate layer 1.
2. forming each layer of battery use packing material
[substrate layer 1]
In battery use packing material 10 of the invention, substrate layer 1 is the layer positioned at outermost layer side.About formation substrate layer 1 raw material are not particularly limited as long as having insulating properties.As the raw material of formation substrate layer 1, such as can arrange It lifts polyester, polyamide, epoxy resin, acrylic resin, fluororesin, polyurethane, silicone resin, phenolic resin, polyetherimide, gather Acid imide, polycarbonate and their mixture, copolymer etc..Among these, preferred substrates layer 1 has to be formed by polyester At least one of layer and the layer formed by polyamide layer.
As polyester, specifically, can enumerate polyethylene terephthalate, polybutylene terephthalate (PBT), Polyethylene naphthalate, polybutylene naphthalate, polyethylene glycol isophthalate, with terephthalate Ester is the copolyester of the main body of repetitive unit, using mutual-phenenyl two acid bromide two alcohol ester as the copolyester of the main body of repetitive unit Deng.In addition, as using ethylene glycol terephthalate as the copolyester of the main body of repetitive unit, specifically, can enumerate Ethylene glycol terephthalate is polymerize as the main body of repetitive unit with ethylene isophthalate copolymer polyester (with Under, referred to as poly- ethylidene (terephthalate/isophthalic acid ester)), poly- ethylidene (terephthalate/isophthalic diformazan Acid esters), poly- ethylidene (terephthalate/adipate ester), poly- ethylidene (terephthalate/isophthalic acid ester sulfonic acid Sodium), poly- ethylidene (terephthalate/isophthalic acid ester sodium), poly- ethylidene (terephthalate/phenyl-dioctyl phthalate Ester), poly- ethylidene (terephthalate/last of the ten Heavenly stems dicarboxylic ester) etc..In addition, as being to repeat list with mutual-phenenyl two acid bromide two alcohol ester The copolyester of the main body of member, specifically, can enumerate using mutual-phenenyl two acid bromide two alcohol ester as the main body of repetitive unit and Copolymer polyester (hreinafter referred to as polybutylene (the terephthalate/isophthalic diformazan of M-phthalic acid butanediol ester polymerization Acid esters)), polybutylene (terephthalate/adipate ester), polybutylene (terephthalate/sebacate), polytetramethylene Base (terephthalate/last of the ten Heavenly stems dicarboxylic ester), polybutylene naphthalate etc..These polyester can be used alone, or Two or more use can also be combined.Polyester is with electrolyte resistance is excellent, the attachment of electrolyte is not allowed to be also easy to produce albefaction etc. The advantages of, the formation raw material for being suitable as substrate layer 1 use.
In addition, as polyamide, specifically, can enumerate nylon 6, nylon66 fiber, nylon 610, nylon 12, nylon 46, The fatty families polyamide such as the copolymer of nylon 6 and nylon66 fiber；Structure comprising being originated from terephthalic acid (TPA) and/or M-phthalic acid The nylon 6I of unit, nylon 6T, nylon 6IT, nylon 6I6T (I indicates that M-phthalic acid, T indicate terephthalic acid (TPA)) etc. oneself two Amine-M-phthalic acid-terephthalic acid (TPA) copolyamide, poly-meta-xylylene adipamide (MXD6) etc. include aromatic poly- Amide；The alicyclic series polyamide such as poly- aminomethylcyclohexyl adipamide (PACM6)；And make lactams ingredient, 4,4 '- Polyamide that the isocyanate prepolymer compositions such as diphenyl methane-diisocyanate are copolymerized, as copolyamide and polyester, poly- Polyester-amide copolymer, the polyether ester amide copolymers of the copolymer of alkylene ether glycols；Their copolymer etc..These polyamides Amine can be used alone, or can also combine two or more use.The draftability of stretched polyamide film is excellent, can prevent The generation of albefaction caused by the resin rupture of substrate layer 1 when as forming, is suitable as the formation raw material of substrate layer 1.
Substrate layer 1 can be formed by the resin film through uniaxial or biaxial stretching, or can also be by non-stretched resin film It is formed.Wherein, the resin film through uniaxial or biaxial stretching, particularly resistance to by oriented crystalline through biaxial stretch-formed resin film Hot raising, therefore it is suitable as substrate layer 1.Substrate layer is formed furthermore it is possible to which above-mentioned raw material are coated on barrier layer 3 1。
Among these, as the resin film for forming substrate layer 1, nylon is preferably listed, polyester, further preferably enumerates twin shaft Tensile nylon, biaxially stretched polyester.
For substrate layer 1, in order to improve pinhole resistance and be made battery package body when insulating properties, also can will At least one progress of the resin film and coating of different raw material is laminating (multilayer structured).Specifically, can enumerate by Multilayered structure obtained from polyester film and nylon film lamination, by multilayered structure obtained from nylon film lamination multilayer, by polyester film Multilayered structure obtained from lamination multilayer etc..In the case where substrate layer 1 is multilayered structure, preferably biaxial stretch-formed nylon membrane and double The laminated body of axis oriented polyester film, by laminated body obtained from biaxial stretch-formed nylon film lamination multilayer, by biaxially oriented polyester film Laminated body obtained from lamination multilayer.For example, being preferably formed into lamination in the case where the resin film by 2 layers forms substrate layer 1 The structure of polyester resin and polyester resin, the structure of multi-layer polyamide resin and polyamide or lamination polyester resin and poly- The structure of amide resin is more preferably formed as the knot of lamination polyethylene terephthalate and polyethylene terephthalate The structure of structure, the structure of lamination nylon and nylon or lamination polyethylene terephthalate and nylon.In addition, biaxial stretch-formed Polyester is easy to change etc. due to not allowing when electrolyte is attached to surface for example, substrate layer 1 be biaxial stretch-formed nylon membrane and In the case where the multilayered structure of the laminated body of biaxially oriented polyester film, preferred substrates layer 1 is successively to have twin shaft from 3 side of barrier layer The laminated body of tensile nylon and biaxially stretched polyester.When substrate layer 1 is set as multilayered structure, as the thickness of each layer, preferably arrange Lift 2 μm or more, 25 μm or less left and right.
In the case where substrate layer 1 is set as multilayered structure, each resin film can be bonded by bonding agent, or can also be with Do not pass through the direct lamination of bonding agent.When not being bonded by bonding agent, for example, coetrusion, interlayer laminating method, heat can be enumerated The method that laminating method etc. is bonded with hot melt state.In addition, used bonding agent can be biliquid when being bonded by bonding agent Curing type bonding agent, or may be 1 solution curing type bonding agent.In addition, the bonding mechanism for bonding agent is also no special Limitation, can be chemical reaction type, solvent volatile-type, hot-melt type, hot pressing type, electron beam curing type, ultraviolet hardening Deng it is any number of.As the concrete example of bonding agent, can enumerate similarly be bonded with the bonding agent illustrated in adhesive layer 2 Agent.In addition, the thickness about bonding agent, it also can be same as adhesive layer 2.
Lubrication prescription amount as the surface for being present in substrate layer 1 is not particularly limited as long as meeting above-mentioned total amount, It is examined from the viewpoint for forming the battery use packing material for having the continuous production of further high mouldability and battery excellent Consider, 3mg/m is preferably listed2Above, 4mg/m is more preferably enumerated2It above and is 15mg/m2Below, 5mg/m is further preferably enumerated2 It above and is 14mg/m2Below.Lubrication prescription amount by will be present in the surface of substrate layer 1 is set as such value, can make base The lettering characteristic on the surface of material layer 1 improves.Additionally, there are the measuring methods of the lubrication prescription amount in the surface of substrate layer 1 and above-mentioned The measuring method for being present in the lubrication prescription amount on the surface of laminated body is same.
It is set as the method for above-mentioned amount as the lubrication prescription amount on the surface that will be present in substrate layer 1, can enumerates：In substrate The method of the surface coating lubrication prescription of layer 1；Make to contain lubrication prescription in the resin for constituting substrate layer 1 and be heated, thus makes lubrication prescription In the method for surface exudation.
It as the type of lubrication prescription, is not particularly limited, amide system lubrication prescription is preferably listed.As the specific of amide system lubrication prescription Example, such as unsaturated fatty acid amide, unsaturated fatty acid amide, substituted amide, methylol amide, saturated fatty acid can be enumerated Bisamide, unsaturated fatty acid bisamide etc..As the concrete example of unsaturated fatty acid amide, lauric amide, palm fibre can be enumerated Palmitic acid acid amide, stearic amide, behenamide, hydroxy stearic acid amide etc..As the concrete example of unsaturated fatty acid amide, Oleamide, erucyl amide etc. can be enumerated.As the concrete example of substituted amide, can enumerate N- oleyl palmitamide, N- stearylstearic amide, N- stearyl oleamide, N- oleyl stearamide, N- stearyl erucamide etc.. In addition, the concrete example as methylol amide, can enumerate hydroxymethylstearic acid amide etc..As saturated fatty acid bisamide Concrete example can enumerate di-2-ethylhexylphosphine oxide stearic amide, ethylenebis capric acid acidamide, ethylenebis lauric amide, ethylidene Double stearic amides, ethylenebis hydroxy stearic acid amide, ethylidene Shuan behenamide, hexamethylene bis stearic amide, Hexamethylene bis behenamide, hexa-methylene hydroxy stearic acid amide, N, N '-distearyl adipic acid amide, N, N '-two Stearyl decanedioic acid amide etc..As the concrete example of unsaturated fatty acid bisamide, ethylenebisoleaamide, Asia can be enumerated Ethyl double erucyl amides, hexamethylene bis oleamide, N ,-two oil base adipic acid amide of N ', N ,-two oil base decanedioic acid acyl of N ' Amine etc..As the concrete example of aliphatic ester amide, stearmide ethyl stearate etc. can be enumerated.In addition, as aromatic series It is the concrete example of bisamide, an xyxylene double stearic amides, xyxylene di-hydroxy stearic acid amide, N can be enumerated, N '-distearyl M-phthalic acid amide etc..Lubrication prescription can be used alone, two or more can also be applied in combination.
As the molecular weight of preferred lubrication prescription, 100~1000 or so can be enumerated.In addition, the molecular weight of lubrication prescription can lead to The surface for cleaning substrate layer with solvent is crossed, obtained cleaning solution is analyzed with electric field disintegrate-quality analytic approach to measure.
Substrate layer 1 can have the surface through Corona discharge Treatment.By make the surface of substrate layer 1 through corona discharge at Reason, can be improved the lettering characteristic on the surface of substrate layer 1.
As the thickness of substrate layer 1, from keeping the thickness of battery use packing material 10 thinning and form shape after molding From the viewpoint of the battery use packing material 10 of excellent in stability, it is preferably listed about 4 μm or more, more preferably enumerates 10 μm or more 75 μm or less left and right, further preferably enumerate 10 μm or more 50 μm or less Zuo You.
In battery use packing material of the invention, from the viewpoint of improving mouldability, about substrate layer 1, preferably wrap Include the polyester film with the following surface degree of orientation：Fourier is used to the surface of outermost layer side (with 3 opposite side of barrier layer) When the total reflection method of transform infrared optical spectroscopy ° obtains the infrared absorption spectrum in 18 directions from 0 ° to 170 with 10 ° of intervals, meet Formula (the surface degree of orientation below：Ymax/Ymin) the surface degree of orientation below：Ymax/Ymin。
Ymax/Ymin=1.4 or more 2.7 or less
YmaxFor by the absorption peak strength Y of the infrared absorption spectrum in above-mentioned 18 directions1340Divided by absorption peak strength Y1410And The maximum value of obtained value.
YminFor by the absorption peak strength Y of the infrared absorption spectrum in above-mentioned 18 directions1340Divided by absorption peak strength Y1410And The minimum value of obtained value.
Maximum value YmaxWith minimum value YminCalculating in, Y is found out to above-mentioned 18 directions respectively1340/Y1410, from these it It is middle to select maximum value Y respectivelymaxWith minimum value Ymin。
The specific determination condition of infrared absorption spectrum is as described below.In addition, the infrared absorption on the surface about polyester film The measurement of spectrum, if it is polyester film surface expose state, then can with the state of battery use packing material lamination into Row.In addition, the surface coating layer 6 can be removed when aftermentioned surface coating layer 6 etc. is stacked on the surface of polyester film, formed For the state that the surface of polyester film is exposed, it is measured.For example, successively there is polyester film and polyamides from barrier layer side by substrate layer In the battery use packing material of amine film, polyester film is obtained, when carrying out the measurement using the total reflection method of Fourier transformation optical spectroscopy, From polyester film stripping PA membrane or PA membrane can be made to dissolve, absorption peak strength Y is measured for obtained polyester film1340 With absorption peak strength Y1410。
(determination condition of infrared absorption spectrum)
Optical splitter (subsidiary 1 secondary reflection ATR auxiliary equipment)
Detector：MCT(Hg Cd Te)
Wavenumber resolution：8cm-1
IRE：Ge
Incidence angle：30°
Polarizing film：Wiregrating, S polarisation
Baseline：The average value of intensity in the range of wave number 1800cm-1 to 2000cm-1
Absorption peak strength Y1340：It is subtracted by the maximum value of the peak intensity in the range of wave number 1335cm-1 to 1342cm-1 It is worth obtained from the value of baseline
Absorption peak strength Y1410：It is subtracted by the maximum value of the peak intensity in the range of wave number 1400cm-1 to 1410cm-1 It is worth obtained from the value of baseline
Polyester film as sample is horizontally placed at sample and kept by the acquisition of the infrared absorption spectrum about 18 directions Device makes to be rotated in a manner of 10 ° every time together with the Ge crystal being placed on sample to carry out.Incidence angle be vertical line (normal) with The angle of incident light.
From the viewpoint of the mouldability for further increasing battery use packing material, as the surface degree of orientation (Ymax/ Ymin), 1.6 or more 2.7 are more preferably enumerated hereinafter, further preferably enumerating 1.6 or more 2.4 or less Zuo You.
With the surface degree of orientation as described above：Ymax/YminPolyester film, such as polyester can be manufactured by appropriate adjustment Drawing process, stretching ratio, tensile speed, cooling temperature, heat-fixing temperature when film etc. manufacture.In addition, as polyester film, It is able to use commercially available product.
Polyester film is preferably made of biaxially oriented polyester film, particularly biaxial stretch-formed polyethylene terephthalate film.
As the thickness of polyester film, be not particularly limited, from make battery use packing material be thinned and play excellent From the viewpoint of mouldability, about 20 μm are preferably listed hereinafter, more preferably enumerate 1 μm or more 15 μm or less Zuo You, more preferably enumerates 3 μm or more 12 μm or less Zuo You.
[adhesive layer 2]
In battery use packing material of the invention, adhesive layer 2 is to glue substrate layer 1 securely with barrier layer 3 The layer for connecing and being disposed there between.
Adhesive layer 2 is by that can form the bonding agent be bonded with barrier layer 3 of substrate layer 1.Make in the formation of adhesive layer 2 Bonding agent can be biliquid curing type bonding agent, or may be 1 solution curing type bonding agent.In addition, for bonding agent Layer 2 formation used in bonding agent bonding mechanism it is not also specifically limited, can for chemical reaction type, solvent volatile-type, Hot-melt type, hot pressing type etc. it is any number of.
It is able to use bonding composition in formation as adhesive layer 2, specifically, can enumerate：Poly terephthalic acid Glycol ester, polybutylene terephthalate (PBT), polyethylene naphthalate, polybutylene naphthalate, poly- isophthalic two The polyester based resin of formic acid glycol ester, copolyester etc.；Polycarbonate；Polyether system bonding agent；Urethane adhesive；Epoxy It is resin；Phenolic resin system resin；The polyamide resin of nylon 6, nylon66 fiber, nylon 12, copolyamide etc.；Polyolefin, The polyolefin-based resins of carboxyl acid modified polyolefin, metal-modified polyolefin etc., polyvinyl acetate system resin；Cellulose-based bonding Agent；(methyl) acrylic resin；Polyimides system resins；The amino resins of urea resin, melamine resin etc.；Neoprene rubber The rubber of glue, nitrile rubber, SBR styrene butadiene rubbers etc.；Organic silicon-type resin etc..These bonding compositions can individually make With a kind, or two or more can also be applied in combination.In these bonding compositions, urethane adhesive is preferably listed.
About the thickness of adhesive layer 2, as long as playing the function as adhesive layer, it is not particularly limited, for example, can To enumerate 1 μm or more 10 μm or less Zuo You, be preferably listed 2 μm or more 5 μm or less Zuo You.
[barrier layer 3]
In battery use packing material 10, barrier layer 3 is also to have other than improving the intensity of battery use packing material Prevent the layer of the function of the intrusion inside battery such as vapor, oxygen, light.Barrier layer 3 is preferably metal layer, that is, to be formed by metal Layer.Aluminium is preferably listed specifically, aluminium, stainless steel, titanium etc. can be enumerated as the metal for constituting barrier layer 3.Barrier layer 3 Can by metal foil or metal deposition film, inorganic oxide evaporation film, carbon containing inorganic oxide evaporation film, be provided with these steamings The formation such as film of plated film, is preferably formed by metal foil, is more preferably formed by aluminium foil.When manufacturing battery use packing material, from It prevents from generating fold in barrier layer 3 or from the viewpoint of pin hole, more preferably for example by annealed treated aluminium (JIS H4160： 1994A8021H-O,JIS H4160：1994A8079H-O,JIS H4000：2014A8021P-O,JIS H4000： 2014A8079P-O) etc. soft alloy foil forms barrier layer.
From the viewpoint of the mouldability for improving barrier layer 3, barrier layer 3 (when especially being formed by alloy foil) is averaged Crystallization particle diameter is preferably from about 10.0 μm hereinafter, preferably 1.0 μm or more 7.0 μm or less Zuo You, more preferably 1.0 μm or more 3.0 μ The left and right m or less.
In the present invention, the average crystallite particle diameter in aluminum alloy foil layers, refers to：It is seen with scanning electron microscope (SEM) The section for examining the thickness direction of aluminum alloy foil layers, the crystal grain 31 to 100 aluminium alloys being located in the visual field, such as the schematic diagram of Fig. 5 It is shown, measure the maximum gauge x of each crystal grain, take the maximum gauge x of 100 crystal grain it is average obtained from value.Each crystalline substance The maximum gauge x of grain refers to as shown in the schematic view of fig. 5, for the crystal grain observed with SEM, 1 point of the extension of crystallites with The linear distance of another point of the extension of same crystal grain becomes maximum diameter.With the thickness side of the aluminum alloy foil layers of SEM observation To section be by section with truncation surface obtained from vertical with rolling direction face truncation.In addition, Fig. 5 is schematic diagram, therefore, It omits and describes, there is no describe 100 crystal grain 31.
In addition, in the present invention, in the section of the thickness direction for the laminated body for constituting battery use packing material, with optics In arbitrary 100 Second Phase Particles 32 in the visual field of micro- sem observation barrier layer 3, the diameter of each Second Phase Particle is measured When y, the diameter y of 20 Second Phase Particles of front is come according to the sequence of diameter y from big to small is averagely preferably from about 5.0 μm hereinafter, more preferably 1.0 μm or more 4.0 μm or less Zuo You, further preferably 1.0 μm or more 3.5 μm or less Zuo You.It is each The diameter y of Second Phase Particle refers to as shown in the schematic view of fig. 5, for the particle observed with SEM, links Second Phase Particle 1 point of extension and the linear distance of another point of the extension of same Second Phase Particle become maximum diameter.By making barrier layer 3 In average crystallite particle diameter be about 10.0 μm hereinafter, and the above-mentioned diameter of Second Phase Particle 32 is made to be in such range, energy Enough mouldabilities for further improving battery use packing material.In addition, Fig. 5 is schematic diagram, therefore, omits and describe, do not retouch Draw 100 crystal grain 31.
In the present invention, for example, when barrier layer 3 is formed by aluminium alloy, Second Phase Particle contained by aluminium alloy forms Al- (FeMn) intermetallic compound of-Si etc., the such Second Phase Particle mainly generated in the solidification of casting process is rear In continuous process can not being completely fixed and remain.
When with the section of the thickness direction of scanning electron microscope (SEM) observation barrier layer 3, crystal grain is usually described and more It is a to crystallize the boundary line to connect.In contrast, Second Phase Particle is usually the single crystallization in boundary line.In addition, crystal grain and second The position of phase particle is mutually different, and therefore, color is different on SEM image, have a case that Second Phase Particle be observed to it is white compared with More features.In addition, when observing the section of the thickness direction of barrier layer 3 with optical microscopy, due to crystal grain and Second Phase Particle Position phase difference, cause only Second Phase Particle be observed to black, therefore, observation becomes easy.
When barrier layer 3 is formed by aluminium alloy, as the composition of aluminium alloy, 0.7 mass % or more, 2.5 mass % is preferably comprised Fe below, 0.05 mass % Cu below, 0.30 mass % Si below.
As long as the thickness of barrier layer 3 plays the function of the barrier layer as vapor etc., it is not particularly limited, example Such as, 10 μm or more and 100 μm or less Zuo You can be set as, is preferably set to 10 μm or more and 55 μm or less Zuo You, more preferable 10 μm Above and 38 μm or less Zuo You.
In addition, in order to bonding stabilisation, prevent dissolve or corrode etc., the preferably at least face of barrier layer 3, preferably two Face has substrate skin membrane.Wherein, substrate skin membrane is formed and chemical conversion processing is implemented on the surface to barrier layer Layer, chemical conversion processing refers to the processing that acid resistance epithelium is formed to the surface of barrier layer.It is handled as chemical conversion, For example, can enumerate：Use chromic nitrate, charomic fluoride, chromium sulfate, chromium acetate, chromium+oxalic acid, biphosphate chromium, chromic acid acetoacetate The chromic acid salt treatment of the chromium compounds such as ester, chromium chloride, chromium potassium suplhate；Use the phosphorus such as sodium phosphate, potassium phosphate, ammonium phosphate, polyphosphoric acid The phosphoric acid chromate of acid compound is handled；It is polymerize using the amination phenol with repetitive unit shown in the following general formula (1)~(4) Chromic acid salt treatment of object etc..In addition, in the amination phenol polymer, repetitive unit shown in the following general formula (1)~(4) can be with Contain independent a kind, or any combination of more than two kinds.
In general formula (1)~(4), X indicates hydrogen atom, hydroxyl, alkyl, hydroxy alkyl, allyl or benzyl.In addition, R1 And R2It is identical or different respectively, indicate hydroxyl, alkyl or hydroxy alkyl.In general formula (1)~(4), as X, R1And R2Shown in Alkyl, for example, the carbon atom numbers such as methyl, ethyl, n-propyl, isopropyl, normal-butyl, isobutyl group, tert-butyl 1~4 can be enumerated Straight or branched alkyl.In addition, as X, R1And R2Shown in hydroxy alkyl, for example, hydroxymethyl, 1- hydroxyl can be enumerated Base ethyl, 2- hydroxyethyl, 1- hydroxypropyl, 2- hydroxypropyl, 3- hydroxypropyl, 1- hydroxybutyl, 2- hydroxyl fourth The substitutions such as base, 3- hydroxybutyl, 4- hydroxybutyl have the straight or branched alkyl of the carbon atom number 1~4 of 1 hydroxyl.? In general formula (1)~(4), X, R1And R2Shown in alkyl and hydroxy alkyl may be the same or different respectively.General formula (1)~ (4) in, X is preferably hydrogen atom, hydroxyl or hydroxy alkyl.Amination phenol with repetitive unit shown in general formula (1)~(4) is poly- The number-average molecular weight for closing object is preferably, for example, 500 or more 100 ten thousand hereinafter, more preferably 1000 or more 2 ten thousand or less.
In addition, assigning corrosion proof chemical conversion processing method as to barrier layer 3, method can be listed below：It applies It applies obtained from the particle for being dispersed with the metal oxides such as aluminium oxide, titanium oxide, cerium oxide, tin oxide or barium sulfate in phosphoric acid Substance carries out baking processing at 150 DEG C or more, the method for thus forming corrosion proof substrate skin membrane on the surface of barrier layer 3. Cation property copolymer is crosslinked with crosslinking agent alternatively, it is also possible to be further formed on corrosion proof substrate skin membrane Resin layer.Here, as cation property copolymer, for example, polyethyleneimine can be enumerated, by polyethyleneimine and with carboxylic acid Polymer formed ion polymer complex compound, the grafting of primary amines that graft polymerization primary amine obtains on acrylic acid main framing Acrylic resin, polyallylamine or derivatives thereof, amino-phenol etc..As these cation property copolymers, 1 can be used only Kind, two or more can also be applied in combination.In addition, as crosslinking agent, for example, can enumerate has selected from isocyanate group, shrinks Glyceryl, carboxyl He compound, silane coupling agent of at least one kind of functional group in oxazolinyl etc..It, can as these crosslinking agents To be used only a kind, two or more can also be applied in combination.
Chemical conversion processing can only carry out a kind of chemical conversion processing, can also combine and carry out chemistry of more than two kinds Method surface treatment.In addition, the processing of these chemical conversions can be used alone compound, or 2 kinds can also be applied in combination Above compound carries out.In chemical conversion processing, preferably chromate handles or is combined with chromium compound, phosphate cpd It is handled etc. with the chemical conversion of amination phenol polymer.In chromium compound, preferred chromium acid compound.
The amount of substrate skin membrane about the surface for being formed in barrier layer 3 in chemical conversion is handled, does not limit especially System, for example, in the case where carrying out above-mentioned chromic acid salt treatment, it is desirable in the every 1m in the surface of barrier layer 32In, with following ratio Contain：Chromic acid compound is calculated as the left and right 0.5mg or more 50mg or less, the preferably left and right 1.0mg or more 40mg or less with chromium conversion； Phosphorus compound is calculated as the left and right 0.5mg or more 50mg or less, the preferably left and right 1.0mg or more 40mg or less with phosphorus conversion；And ammonia Base phenol polymer is the left and right 1mg or more 200mg or less, the preferably left and right 5.0mg or more 150mg or less.
Chemical conversion processing will be by that will include substrate epithelium using stick coating method, rolling method, gravure coating process, infusion process etc. The solution coating of compound used in the formation of layer becomes 70 DEG C or more behind the surface of barrier layer, with the temperature of barrier layer The mode of 200 DEG C or less left and right heats to carry out.In addition, before implementing chemical conversion processing to barrier layer, it can be preparatory By barrier layer for the ungrease treatment using alkali steeping method, electrolytic cleaned method, acid cleaning method, electrolysis acid cleaning method etc..Pass through this Sample carries out ungrease treatment, can more efficiently carry out the chemical conversion processing on the surface of barrier layer.
[heat sealability resin layer 4]
In battery use packing material of the invention, heat sealability resin layer 4 is equivalent to innermost layer, is in assembled battery Making heat sealability resin layer, thermal welding carrys out the layer of sealed cell element each other.
The resin component used in heat sealability resin layer 4, if can thermal welding, be not particularly limited, Such as polyolefin, cyclic polyolefin, carboxyl acid modified polyolefin, carboxyl acid modified cyclic polyolefin can be enumerated.
As said polyolefins, specifically, low density polyethylene (LDPE), medium density polyethylene, high-density polyethylene can be enumerated The polyethylene such as alkene, linear low density polyethylene；Homo-polypropylene, polyacrylic block copolymer are (for example, the block of propylene and ethylene Copolymer), the polypropylene such as polyacrylic random copolymer (for example, random copolymer of propylene and ethylene)；Ethylene/Butylene- The terpolymer etc. of propylene.In these polyolefin, polyethylene and polypropylene is preferably listed.
Above-mentioned cyclic polyolefin is the copolymer of alkene and cyclic monomer.Composition monomer as above-mentioned cyclic polyolefin Alkene, for example, ethylene, propylene, 4-methyl-1-pentene, butadiene, isoprene etc. can be enumerated.In addition, as above-mentioned The cyclic monomer of the composition monomer of cyclic polyolefin, for example, the cyclic olefin of norbornene etc. can be enumerated；Specifically, can To enumerate the cyclic diene etc. of cyclopentadiene, bicyclopentadiene, cyclohexadiene, norbornadiene etc..In these polyolefin, preferably Cyclic olefin is enumerated, norbornene is further preferably enumerated.In addition, styrene can also be enumerated as monomer.
Above-mentioned carboxyl acid modified polyolefin, refers to and said polyolefins is carried out block polymerization or graft polymerization with carboxylic acid and are modified Obtained polymer.As modified used carboxylic acid, for example, maleic acid, acrylic acid, itaconic acid, crotonic acid, horse can be enumerated Come acid anhydrides, itaconic anhydride etc..
Above-mentioned carboxyl acid modified cyclic polyolefin refers to by the way that a part for constituting the monomer of cyclic polyolefin is replaced by α, Beta-unsaturated carboxylic acid or its acid anhydrides and the polymer that is copolymerized or by by alpha, beta-unsaturated carboxylic acid or its acid anhydrides Block polymerization is carried out to cyclic polyolefin or the obtained polymer that is graft-polymerized.About by carboxyl acid modified cyclic polyolefin, with It is above-mentioned identical.In addition, as carboxylic acid used in modification, it is identical as carboxylic acid used in the modification of said polyolefins.
In these resin components, carboxyl acid modified polyolefin is preferably listed；Further preferably enumerate carboxyl acid modified polypropylene.
Heat sealability resin layer 4 can be formed by independent a kind of resin component, or can also be by combining two or more resin The polymer blend of ingredient is formed.In addition, heat sealability resin layer 4 can be formed only by 1 layer, it can also be by identical or different Resin component is formed above with 2 layers.
Additionally, it is preferred that on the surface of heat sealability resin layer 4, there are lubrication prescription.As being present in heat sealability resin layer 4 The lubrication prescription amount on surface be not particularly limited as long as meeting above-mentioned total amount, from there is further high mouldability simultaneously And formed from the viewpoint of the excellent battery use packing material of continuous production of battery, 10mg/m is preferably listed2Above and 50mg/m2Left and right below, further preferably enumerates 15mg/m2Above and 40mg/m2Left and right below.Additionally, there are in heat sealability The measuring method phase of the measuring method of the lubrication prescription amount on the surface of resin layer 4 and the lubrication prescription amount on the above-mentioned surface for being present in laminated body Together.Additionally, there are the types of the lubrication prescription in the surface of heat sealability resin layer 4 can enumerate the cunning illustrated in above-mentioned substrate layer 1 Agent.
It is set as the method for above-mentioned amount, Ke Yilie as the lubrication prescription amount on the surface that will be present in heat sealability resin layer 4 Lift the method in the surface of heat sealability resin layer 4 coating lubrication prescription；Or make to contain in the resin for constituting heat sealability resin layer 4 Lubrication prescription is simultaneously heated, the method for oozing out lubrication prescription on surface.
In addition, the thickness as heat sealability resin layer 4, as long as playing the function as heat sealability resin layer, It is not particularly limited, is preferably listed about 60 μm hereinafter, more preferably enumerating 15 μm or more 40 μm or less Zuo You.
[adhesive layer 5]
In battery use packing material of the invention, adhesive layer 5 is to make 4 jail of barrier layer 3 and heat sealability resin layer Though be bonded the layer that is set as needed between them.
Adhesive layer 5 is by that can form the resin be bonded with heat sealability resin layer 4 of barrier layer 3.Shape as adhesive layer 5 At used resin, it is bonding with illustrating in adhesive layer 2 to be able to use type of its bonding mechanism, bonding agent ingredient etc. The same resin of agent.In addition, resin used in formation as adhesive layer 5, additionally it is possible to using in above-mentioned heat sealability tree The polyolefin of the polyolefin, cyclic polyolefin, carboxyl acid modified polyolefin, the carboxyl acid modified cyclic polyolefin that are illustrated in rouge layer 4 etc. Resin.It is preferably carboxyl acid modified as polyolefin from the viewpoint of from the excellent adhesion of barrier layer 3 and heat sealability resin layer 4 Polyolefin, particularly preferred carboxyl acid modified polypropylene.
In addition, from keeping the thickness of battery use packing material thinning and the excellent electricity of shape stability after molding being made From the viewpoint of the packaging material of pond, adhesive layer 5 can consolidating for the resin combination comprising acid modified polyolefin and curing agent Compound.As acid modified polyolefin, can preferably illustrate with illustrated in heat sealability resin layer 4 carboxyl acid modified polyolefin, The identical substance of carboxyl acid modified cyclic polyolefin.
In addition, as long as making the cured substance of acid modified polyolefin, being not particularly limited as curing agent.As Curing agent, for example, epoxy curing agent, polyfunctional isocyanate system curing agent, carbodiimides system curing agent, Evil can be enumerated Oxazoline system curing agent etc..
As long as epoxy curing agent has the compound of at least one epoxy group, it is not particularly limited.As epoxy Be curing agent, for example, can enumerate bisphenol A diglycidyl ether, modified bisphenol A diglycidyl ether, novolaks shrink it is sweet The epoxy resin such as oily ether, glycerine polyglycidyl ether, polyglycereol polyglycidyl ether.
As long as polyfunctional isocyanate system curing agent has the compound of 2 or more isocyanate group, without spy It does not limit.As the concrete example of polyfunctional isocyanate system curing agent, isophorone diisocyanate (IPDI), six Asias can be enumerated They, methyl diphenylene diisocyanate (MDI), polymerize toluene di-isocyanate(TDI) (TDI) by methyl diisocyanate (HDI) Materialization or the Esterification obtained product of urea, their mixture or with the copolymer of other polymer etc..
As long as carbodiimides system curing agent has the compound of at least one carbodiimide-based (- N=C=N-) , it is not particularly limited.As carbodiimides system curing agent, it is however preferred to have carbodiimide-based more than at least two Polycarbodiimide compound.
As long as the compound of oxazoline system curing agent Ju You oxazoline skeleton, is not particularly limited.Zuo Wei oxazole Quinoline system curing agent, specifically, the Epocros series etc. of Japanese catalyst corporation can be enumerated.
From the viewpoint of improving adaptation of barrier layer 3 and heat sealability resin layer 4 for passing through adhesive layer 5 etc., solidification Agent can be made of compound of more than two kinds.
The content of the curing agent in the resin combination of adhesive layer 5 is formed preferably more than 0.1 mass % and 50 mass % Range below, more preferably more than 0.1 mass % and 30 mass % ranges below, further preferably 0.1 mass % with Upper and 10 mass % ranges below.
It about the thickness of adhesive layer 5, as long as playing the function as adhesive layer, is not particularly limited, using viscous Connect oxidant layer 2 illustration bonding agent when, be preferably listed 2 μm or more and 10 μm or less Zuo You, more preferably enumerate 2 μm or more and 5 μm with Lower left and right.In addition, 2 μm or more and 50 μm or less Zuo You are preferably listed when using the resin illustrated in heat sealability resin layer 4, More preferable 10 μm or more and 40 μm or less left and right.In addition, for acid modified polyolefin and curing agent solidfied material when, be preferably listed about 30 μm hereinafter, more preferably enumerate 0.1 μm or more and 20 μm or less Zuo You, further preferred 0.5 μm or more and 5 μm or less Zuo You. In addition, when adhesive layer 5 is the solidfied material of the resin combination containing acid modified polyolefin and curing agent, it can be by being coated with the tree Oil/fat composition simultaneously makes its solidification by heat etc., and adhesive layer 5 is consequently formed.
[surface coating layer 6]
In battery use packing material 10 of the invention, to improve design, electrolyte resistance, rub resistance, mouldability It Deng for the purpose of, can according to need, on substrate layer 1 (side opposite with barrier layer 3 of substrate layer 1), set as needed Set surface coating layer 6.Surface coating layer 6 is to be located at outermost layer in assembled battery.When with surface coating layer 6, in electricity There are lubrication prescription on the surface (that is, surface of above-mentioned 1 side of substrate layer) of the surface coating layer 6 of pond packaging material.
Surface coating layer 6 for example can be by Vingon, polyester resin, polyurethane resin, acrylic resin, asphalt mixtures modified by epoxy resin The formation such as rouge.In addition, from the viewpoint of the electrolyte resistance on the further surface for improving battery use packing material, surface packet Coating 6 can be formed by the hybrid resin of combination polyurethane resin and acrylic resin etc..Among those, surface coating layer 6 It is preferred that being formed by biliquid gel-type resin.As the biliquid gel-type resin of formation surface coating layer, such as biliquid can be enumerated Curable polyurethane resin, biliquid curing type polyester resin, biliquid solidified type epoxy resin etc..In addition, in surface coating layer Additive can be cooperated.
As additive, such as the particle that partial size is 5 μm of 0.5nm or more or less Zuo You can be enumerated.About additive Material is not particularly limited, such as metal, metal oxide, inorganic matter, organic matter can be enumerated etc..In addition, about additive Shape, it is not also specifically limited, such as can enumerate spherical, fibrous, plate, unsetting, hollow ball-shape.As addition Agent, specifically, can enumerate talcum, silica, graphite, kaolin, montmorillonite, montmorillonite, synthetic mica, hydrotalcite, Silica gel, zeolite, aluminium hydroxide, magnesium hydroxide, zinc oxide, magnesia, aluminium oxide, neodymia, antimony oxide, titanium oxide, cerium oxide, Calcium sulfate, barium sulfate, calcium carbonate, calcium silicates, lithium carbonate, calcium benzoate, calcium oxalate, magnesium stearate, aluminium oxide, carbon black, carbon are received Mitron class, high-melting-point nylon, cross-linked acrylic acid, cross-linked styrene, crosslinked polyethylene, benzoguanamine, gold, aluminium, copper, nickel etc..This A little additives can be used alone, or can also combine two or more use.In these additives, from dispersion stabilization and From the viewpoint of cost etc., silica, barium sulfate, titanium oxide is preferably listed.Alternatively, it is also possible to additive in advance to surface Implement the various surface treatments of insulation processing, polymolecularity processing etc..
It as the method for forming surface coating layer 6, is not particularly limited, such as can enumerate will formation surface coating layer 6 Biliquid gel-type resin be coated on the method on a surface of substrate layer 1.It is solid in biliquid in the case where cooperating additive Additive is added in change type resin and is coated with after mixing.
It as the content of the additive in surface coating layer 6, is not particularly limited, 0.05 mass % or more is preferably listed The left and right 0.1 mass % or more, 0.5 mass % or less is more preferably enumerated in the left and right 1.0 mass % or less.
As the thickness of surface coating layer 6, as long as playing the above-mentioned function as surface coating layer 6 and wrapping battery Package material meets above-mentioned physical property, is not particularly limited, such as can enumerate 0.5 μm or more 10 μm or less Zuo You, preferably arranges Lift 1 μm or more 5 μm or less Zuo You.
3. the manufacturing method of battery use packing material
About the manufacturing method of battery use packing material of the present invention, as long as can obtain each layer laminate of composition requirement Laminated body is not particularly limited, including at least successively laminated substrate layer 1, barrier layer 3 and heat sealability resin layer 4 obtain The process of laminated body.As make lubrication prescription be present in 1 side of substrate layer surface method, can be coated on the surface of 1 side of substrate layer Lubrication prescription can also contain lubrication prescription in the resin of layer (for example, substrate layer 1 or surface coating layer 6) for constituting 1 side of substrate layer, make Lubrication prescription oozes out on the surface of 1 side of substrate layer.Likewise it is possible to it is coated with lubrication prescription on the surface of heat sealability resin layer 4, it can also be It constitutes in the resin of heat sealability resin layer 4 and contains lubrication prescription, ooze out lubrication prescription on the surface of heat sealability resin layer 4.
An example of manufacturing method as battery use packing material of the present invention, as described below.Firstly, forming successively lamination base The laminated body (hereinafter, being also denoted as " laminated body A " sometimes) of material layer 1, adhesive layer 2, barrier layer 3.Specifically, laminated body A Formation can be carried out by following dry lamination method, in this method, will be used using coating methods such as gravure coating method, rolling methods In formed adhesive layer 2 bonding agent be coated on substrate layer 1 or as needed surface through chemical conversion treated barrier Layer 3 after making it dry, by 1 lamination of the barrier layer 3 or substrate layer, and solidifies adhesive layer 2.
Then, in 3 superimposed layer heat sealability resin layer 4 of the barrier layer of laminated body A.The direct lamination hot melt on barrier layer 3 When connecing property resin layer 4, the resin component for constituting heat sealability resin layer 4 is coated with using the methods of gravure coating method, rolling method On the barrier layer 3 of laminated body A.In addition, when adhesive layer 5 is set between barrier layer 3 and heat sealability resin layer 4, example It can such as enumerate：(1) it is folded on the barrier layer 3 of laminated body A by coextrusion adhesive layer 5 and heat sealability resin layer 4 The method (coextruded layer platen press) of layer；(2) it independently forms laminated body made of 4 lamination of adhesive layer 5 and heat sealability resin layer, The method laminated body being stacked in by lamination methods on the barrier layer 3 of laminated body A；(3) on the barrier layer 3 of laminated body A, It is by extrusion molding or solution coating and folded in the method for high temperature drying baking etc. that the bonding agent of adhesive layer 5 will be used to form The method of the heat sealability resin layer 4 of film is made up in layer in advance on the adhesive layer 5 of lamination methods lamination；(4) on one side folded Flow into the adhesive layer 5 after melting between the barrier layer 3 of layer body A and in advance the heat sealability resin layer 4 of film slabbing, on one side every The method (interlayer laminating method) etc. that is bonded laminated body A and heat sealability resin layer 4 of adhesive layer 5.
In the case where surface coating layer 6 are arranged, on the surface with 3 opposite side of barrier layer of substrate layer 1, stack surface Clad 6.Surface coating layer 6 for example can be by being coated on the table of substrate layer 1 for the above-mentioned resin for forming surface coating layer 6 Face is formed.In addition, the process in the surface stack barrier layer 3 of substrate layer 1 and the surface stack surface cladding in substrate layer 1 The sequence of the process of layer 6 is not particularly limited.Such as it can be after the surface of substrate layer 1 forms surface coating layer 6, in substrate layer The 1 surface formation barrier layer 3 with 6 opposite side of surface coating layer.
As described above, forming the bonding that 6/ substrate layer 1/ of surface coating layer comprising being set as needed is set as needed The adhesive layer 5/ that the barrier layer 3/ that oxidant layer 2/ has carried out chemical conversion processing to surface as needed is set as needed heats The laminated body of connecing property resin layer 4 can be in order to keep the cementability of the adhesive layer 2 being set as needed or adhesive layer 5 secured Heat treatment for hot-rolling contact, hot air type, near-infrared wire type or far infrared wire type etc..As such heat treatment Condition, such as can enumerate and be carried out 1 minute~5 minutes at 150 DEG C or more 250 DEG C or less.
In battery use packing material of the invention, for constituting each layer of laminated body, also it can according to need, in order to make Film formation property, laminating processing, final product secondary operation (package cargo, embossing molding) adaptability etc. are improved or are stabilized, and are implemented The surface activation of Corona discharge Treatment, blasting treatment, oxidation processes, ozone treatment etc. is handled.For example, by substrate layer Corona discharge Treatment is implemented at least one surface, and film formation property, 2 laminating processing, final product flexibility (adaptability) of operations can be improved Deng or make its stabilisation.In addition, for example by implementing at corona discharge to substrate layer 1 and the surface of barrier layer 3 opposite side Reason, can be improved printing adaptability of the ink to 1 surface of substrate layer.
4. the purposes of battery use packing material
Battery use packing material of the invention is for sealing and storing the cell device of anode, cathode, electrolyte etc. Package body in use.That is, can be stored in the package body formed by battery use packing material of the present invention including at least anode, The cell device of cathode and electrolyte, is made battery.
Specifically, the cell device of anode, cathode and electrolyte will be included at least with battery use packing material of the present invention With the state on the outside of being projected into above-mentioned anode and the metal terminal that respectively connect of cathode, with being capable of shape in the periphery of cell device It is coated at the mode of flange part (region that heat sealability resin layer is in contact with each other), by the heat sealability resin layer of above-mentioned flange part It is heat-sealed with one another to be sealed, thus, it is possible to provide the battery for having used battery use packing material.In addition, by electricity of the invention In the case where storing cell device in the package body that pond packaging material is formed, so that the hot melt of battery use packing material of the present invention Connecing property resin portion is that the mode in inside (face contacted with cell device) forms package body.
Battery use packing material of the invention can one-shot battery, secondary cell any number of battery in use, preferably For secondary cell.About the type for the secondary cell that battery use packing material of the present invention is applicable in, it is not particularly limited, such as can It is stored with enumerating lithium ion battery, lithium ion polymer battery, lead storage battery, nickel-hydrogen dattery, nickel-cadmium accumulator, Ni-Fe Battery, nickel-zinc battery, oxidation silver zinc storage battery, metal-air battery, polyvalent cation battery, capacitor (condenser), capacitor (capacitor) etc..In these secondary cells, as the suitable of battery use packing material of the present invention The application of conjunction can enumerate lithium ion battery and lithium ion polymer battery.
Embodiment
Embodiment illustrated below and comparative example, explain the present invention in detail.But the present invention is not limited to embodiments.
(embodiment 1-29 and comparative example 1-14)
The manufacture > of < battery use packing material
It is (thick as the alloy foil of barrier layer by dry lamination method lamination on the substrate layer that the resin by table 1 is formed 35 μm of degree).Specifically, being coated with dual liquid type polyurethane adhesive (polyol compound and fragrance in a face of alloy foil Race's isocyanates based compound), adhesive layer (3 μm of thickness) is formed on alloy foil.Then, pass through dry lamination method lamination After adhesive layer and substrate layer on barrier layer, implement 24 hours maturation process at 40 DEG C, makes substrate layer/bonding as a result, Oxidant layer/barrier layer laminated body.In addition, chemical conversion processing is implemented in two faces to alloy foil.The chemistry of alloy foil Method surface treatment is following to be carried out：It is with the coating weight of chromium by the treatment fluid including phenolic resin, fluorination chromium compound and phosphoric acid 10mg/m2The mode of (dry mass) is coated on two faces of aluminium foil by rolling method, becomes 180 DEG C or more with epithelium temperature Condition toast 20 seconds.Then, on the barrier layer of laminated body, by by carboxyl acid modified polypropylene (being configured at barrier layer side) 20 μm and 15 μm of random polypropylene (innermost layer side) coextrusion, in barrier layer superimposed layer adhesive layer and heat sealability resin layer, obtain Successively lamination has substrate layer/adhesive layer/barrier layer/adhesive layer/heat sealability resin layer battery use packing material.
It is to constitute base in addition, being present in the lubrication prescription on the surface of battery use packing material in embodiment 1-7,9-29 Cooperate lubrication prescription (erucyl amide) in the resin of material layer and heat sealability resin layer and heats one after manufacturing battery use packing material Fixing time makes the lubrication prescription of its exudation.On the other hand, the lubrication prescription of embodiment 8 is after manufacturing battery use packing material, in substrate layer With the lubrication prescription of surface coating lubrication prescription (erucyl amide) of heat sealability resin layer.
In addition, in embodiment 1-21,23-28 and comparative example 1-14, being averaged using above-mentioned as alloy foil Crystallization particle diameter is 10 μm or less and the diameter of above-mentioned Second Phase Particle is 3 μm of alloy foils below, in embodiment 22, It the use of the diameter that above-mentioned average crystallite particle diameter is more than 10 μm and above-mentioned Second Phase Particle is 3 μm of alloy foils below. In addition, being the diameter of 10 μm or less and above-mentioned Second Phase Particle using above-mentioned average crystallite particle diameter in embodiment 29 For 6 μm of alloy foil.
The average crystallite particle diameter and Second Phase Particle of alloy foil measure by the following method respectively.
The measurement > of the average crystallite particle diameter of < alloy foil
The average crystallite particle diameter for the alloy foil that aluminum alloy foil layers as embodiment and comparative example use is to use sweep type Electron microscope (the product name S-4800 of Hitachi's high-tech corporation) observes the section of the thickness direction of aluminum alloy foil layers, at random Selection is located at the crystal grain of 100 aluminium alloys in the visual field, measures the maximum gauge x of each crystal grain, takes the maximum of 100 crystal grain Diameter x it is average obtained from be worth.The maximum gauge x of each crystal grain, refers to the crystal grain for being observed with SEM, crystallites 1 point of extension and the linear distance of another point of the extension of same crystal grain become maximum diameter.
The measurement > of the Second Phase Particle diameter of < alloy foil
The Second Phase Particle diameter for the alloy foil that aluminum alloy foil layers as embodiment and comparative example use, in thickness side To section in, with optical microscopy (the product name CX31-P of OLYMPUS corporation) observe, randomly choose the visual field in 100 The average value of a Second Phase Particle, the diameter y as each Second Phase Particle is found out.The diameter y of each Second Phase Particle, refers to For the particle observed with SEM, link 1 point of the extension of Second Phase Particle and another point of the extension of same Second Phase Particle Linear distance becomes maximum diameter.
(measurement of lubrication prescription amount)
Each battery use packing material obtained in will be above-mentioned is cut into A4 size, makes sample.Then, to the base of each sample Material layer side surface and heat sealability resin layer surface are cleaned with methanol 30ml respectively, wave the methanol of recycling in nitrogen stream It is dry dry, obtain solid content.Then, methanol 1.5ml is added in solid content, is redissolved solid content, is used gas-chromatography Mass analyzer (GCMS, the QP2010 of Shimadzu Seisakusho Ltd., ionization method：Electron impact ionization method (EI method), detector： Four polar form detectors, column：Inert Cap 5MS), measure the lubrication prescription amount of substrate layer side surface and heat sealability resin layer surface. As a result, the lubrication prescription amount on the surface of each battery use packing material is to be worth shown in table 1.
The measurement > of the surface the < degree of orientation
For being used for polyethylene terephthalate (PET) film table of substrate layer in embodiment 11-15,23-28 Face (surface with barrier layer opposite side), using the total reflection method (ATR) of Fourier transform infrared optical spectroscopy (FT-IR), from 0 ° to the 170 ° infrared absorption spectrum for obtaining 18 directions with 10 ° of intervals, to 18 directions from the absorption of the infrared absorption spectrum Peak intensity Y1340(CH2Pitch vibration) and from absorption peak strength Y1410The value of (C=C stretching vibration) calculates separately Y1340/Y1410, from Maximum value Y among thesemaxWith minimum value YminThe gauging surface degree of orientation：Ymax/Ymin。
Result is indicated in table 1.In addition, in embodiment 11-16, YmaxFor 2.1, YminIt is 1.3, the surface degree of orientation：Ymax/ YminIt is 1.60.In embodiment 23, YmaxFor 2.21, YminIt is 1.13, the surface degree of orientation：Ymax/YminIt is 1.96.In embodiment 24, YmaxFor 2.14, YminIt is 1.08, the surface degree of orientation：Ymax/YminIt is 1.98.In embodiment 25, YmaxFor 2.16, YminIt is 1.18, The surface degree of orientation：Ymax/YminIt is 1.83.In embodiment 26, YmaxFor 1.99, YminIt is 1.28, the surface degree of orientation：Ymax/YminFor 1.55.In embodiment 27, YmaxFor 2.15, YminIt is 1.14, the surface degree of orientation：Ymax/YminIt is 1.89.In embodiment 28, YmaxFor 2.22、YminIt is 1.06, the surface degree of orientation：Ymax/YminIt is 2.09.
(determination condition of infrared absorption spectrum)
Optical splitter：The Nicolet iS10FT-IR of Thermo Fisher Scientific corporation
Auxiliary equipment：1 secondary reflection ATR auxiliary equipment (Seagull)
Detector：MCT(Hg Cd Te)
Wavenumber resolution：8cm-1
IRE：Ge
Incidence angle：30°
Polarizing film：Wiregrating, S polarisation
Baseline：The average value of intensity in the range of wave number 1800cm-1 to 2000cm-1
Absorption peak strength Y1340：It is subtracted by the maximum value of the peak intensity in the range of wave number 1335cm-1 to 1342cm-1 It is worth obtained from the value of baseline
Absorption peak strength Y1410：It is subtracted by the maximum value of the peak intensity in the range of wave number 1400cm-1 to 1410cm-1 It is worth obtained from the value of baseline
Polyester film as sample is horizontally placed at sample and kept by the acquisition of the infrared absorption spectrum about 18 directions Device is rotated in a manner of 10 ° every time together together with the Ge crystal being placed on sample to carry out.Incidence angle be vertical line (normal) with enter Penetrate the angle of light.
(mouldability evaluation)
Each battery use packing material obtained in will be above-mentioned is cut into the rectangle of 80mm × 120mm, makes sample.In temperature In the environment of 24 DEG C of degree, relative humidity 50%, these samples are used with the molding die (yin of the bore with 30mm × 50mm Mould, surface are JIS B 0659-1：2002 annex 1 (reference) compare specified in the table 2 with surface roughness specimen, most Big height roughness (the address value of Rz) is 3.2 μm) and corresponding molding die (formpiston, surface are JIS B 0659- 1：2002 annex 1 (reference) compare specified in the table 2 with surface roughness specimen, the maximum height roughness (address of Rz Value) be 1.6 μm), form depth is increased from the form depth of 0.5mm with 0.5mm unit with press pressure 0.4MPa, carry out at Form depth 0.5mm more shallow than the form depth when battery use packing material generates pin hole is set as the boundary of the sample by type Form depth.According to the boundary form depth, the mouldability of battery use packing material is evaluated based on the following benchmarks.In table 1 Indicate result.
A：Boundary form depth is 6.0mm or more
B：Boundary form depth is 5.0mm or more 5.5mm or less
C：Boundary form depth is 4.0mm or more 4.5mm or less
D：Boundary form depth is 3.5mm or less
(evaluation of the continuous production of battery)
Each battery use packing material obtained in will be above-mentioned is cut into the rectangle of 80mm × 120mm, makes sample.It connects , in the environment of 24 DEG C of temperature, relative humidity 50%, these samples are used with the shaping mould of the bore with 30mm × 50mm (former, surface are JIS B 0659-1 to tool：2002 annex 1 (reference) compare to be provided in the table 2 with surface roughness specimen , maximum height roughness (the address value of Rz) be 3.2 μm) and corresponding molding die (formpiston, surface are JIS B 0659-1：2002 annex 1 (reference) compare specified in the table 2 with surface roughness specimen, maximum height roughness (Rz Address value) be 1.6 μm), carry out the molding of each 1000 cold conditions respectively with press pressure 0.4MPa, with the form depth of 5mm.It connects , the corner part of cold conditions mold after molding has been carried out by visual observations, based on the following benchmarks, evaluates battery package material The continuously shaped property of material.
A：It is high that lubrication prescription is not diverted into formpiston and former, mold not albefaction, therefore continuously shaped property
B：Lubrication prescription is only transferred to either one or two of formpiston and former, mold slightly albefaction, therefore continuously shaped property is slightly higher
C：It is low (evaluation of lettering) that lubrication prescription is transferred to the both sides of formpiston and former, mold albefaction, therefore continuously shaped property
The substrate layer surface of each battery use packing material obtained in above-mentioned passes through bat printing (pad printing) and prints Pattern.Pad printer uses Mishima Co. Ltd. system SPACE PAD 6GX, and ink is oily using the UV of Navitas Co. Ltd. system Black PJU-A black.In addition, with the Handy UV Lamp SUV-4 of AS-1 with ultraviolet wavelength：254nm from 10cm away from UV 30 seconds from irradiation, make ink solidification.Printing surface after being solidified with optical microscopy observation, is commented according to benchmark below Valence.Result is indicated in table 1.In addition, lettering evaluation carries out in the environment of 24 DEG C and relative humidity 50%.
5：There is no biting for printing in the range that can be estimated
4：Biting for printing accounts for the 2.5% or less of printing decorative pattern entirety
3：The biting of printing account for printing decorative pattern it is whole be greater than 2.5% and 5% or less
2：The biting of printing account for printing decorative pattern it is whole be greater than 5% and 10% or less
1：The biting of printing account for printing decorative pattern it is whole be greater than 10%
(evaluation of adhesive tape fissility)
The substrate layer surface of each battery use packing material obtained in above-mentioned, it is same as the evaluation of above-mentioned lettering to grasp Make, passes through pad printing pattern.To the printing surface after solidification, by the rubber of the Scotch Tape#600 200g of 3M corporation Roller is pasted back and forth by one.Then, the adhesive tape pasted is removed with 90 ° of peel angle.It is observed with optical microscopy The substrate layer surface (printing surface) for having removed the part of adhesive tape, based on the following benchmarks comments the range that can estimate confirmation Valence.Result is indicated in table 1.In addition, the evaluation of adhesive tape fissility carries out in the environment of 24 DEG C and relative humidity 50%.
5：Printing is not peeled off
4：The peeling of printing account for printing decorative pattern it is whole be greater than 0% and 25% or less
3：The peeling of printing account for printing decorative pattern it is whole be greater than 25% and 50% or less
2：The peeling of printing account for printing decorative pattern it is whole be greater than 50% and 75% or less
1：The peeling of printing account for printing decorative pattern it is whole be greater than 75%
[table 1]
In addition, in embodiment 6,11 and comparative example 5,11, implementing Corona discharge Treatment to substrate layer surface in table 1 (the * label in table 1).In addition, implementing easy bonding in embodiment 7,14 and comparative example 6,12 to substrate layer surface and handling (the * * label in table 1).Easily bonding processing is come using the coating fluid for being added to acrylic resin and isocyanate crosslinking It is formed.ONy is biaxial stretch-formed nylon, and PET is biaxial stretch-formed polyethylene terephthalate, and PET/ONy is that PET is located at and resistance The opposite side of interlayer, the lamination obtained by the dry lamination of polyethylene terephthalate (12 μm) and nylon (15 μm) Film.In addition, PETONy is the stack membrane obtained by the coextrusion of polyethylene terephthalate (3 μm) and nylon (12 μm) (the HEPTAX HBN (general grade) of Junshi Co., Ltd) forms the case where substrate layer.In addition, PP refers to biaxial stretch-formed poly- third Alkene, PE refer to that biaxial stretch-formed polyethylene, CPP refer to un-stretched polypropylene.
As indicated by the results shown in Table 1, there are lubrication prescription and it is present in the base of laminated body on the surface of substrate layer side The lubrication prescription amount on the surface of material layer side adds up to 15mg/ with the lubrication prescription amount on the surface for the heat sealability resin layer for being present in laminated body m2Above and 60mg/m2The battery use packing material of Examples 1 to 29 below has the continuous life of high mouldability and battery Production property is excellent.
Symbol description
1 substrate layer
2 adhesive layers
3 barrier layers
4 heat sealability resin layers
5 adhesive layers
6 surface coating layers
10 battery use packing materials

Claims (12)

1. a kind of battery use packing material, it is characterised in that：
By at least successively the laminated body with substrate layer, barrier layer and heat sealability resin layer is constituted,
At least the substrate layer side of the laminated body surface there are lubrication prescription,
The heat sealability resin layer of the lubrication prescription amount and laminated body on the surface of the substrate layer side of the laminated body The lubrication prescription amount on surface adds up to 15mg/m2Above, 60mg/m2Below.
2. battery use packing material as described in claim 1, it is characterised in that：
The lubrication prescription amount for being present in the surface of the substrate layer side of the laminated body is 3mg/m2Above, 15mg/m2Below.
3. battery use packing material as claimed in claim 1 or 2, it is characterised in that：
The lubrication prescription amount for being present in the surface of the heat sealability resin layer of the laminated body is 10mg/m2Above, 50mg/m2With Under.
4. battery use packing material according to any one of claims 1 to 3, it is characterised in that：The substrate layer have by At least one of the layer of polyester formation and the layer formed by polyamide layer.
5. battery use packing material as described in any one of claims 1 to 4, it is characterised in that：The substrate layer with The barrier layer opposite side has surface coating layer.
6. such as battery use packing material according to any one of claims 1 to 5, it is characterised in that：The lubrication prescription includes amide It is lubrication prescription.
7. such as battery use packing material according to any one of claims 1 to 6, it is characterised in that：The heat sealability resin Layer has the layer formed by polyolefin.
8. such as battery use packing material according to any one of claims 1 to 7, it is characterised in that：The barrier layer extremely A few face has substrate skin membrane.
9. such as battery use packing material according to any one of claims 1 to 8, it is characterised in that：It is secondary cell Packaging material.
10. a kind of battery, it is characterised in that：
It is accommodated with and includes at least in the package body formed by battery use packing material according to any one of claims 1 to 9 The cell device of anode, cathode and electrolyte.
11. a kind of manufacturing method of battery use packing material, it is characterised in that：
Including at least successively process of laminated substrate layer, barrier layer and heat sealability resin layer,
Make lubrication prescription present at least at the surface of the substrate layer side of the laminated body, and by the substrate of the laminated body The total of lubrication prescription amount on the surface of the heat sealability resin layer of the lubrication prescription amount and laminated body on the surface of layer side is set as 15mg/m2Above, 60mg/m2Below.
12. the manufacturing method of battery use packing material as claimed in claim 11, it is characterised in that：It further include to the substrate The process that Corona discharge Treatment is implemented at least one surface of layer.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113329876A (en) * 2019-01-23 2021-08-31 大日本印刷株式会社 Outer packaging material for electricity storage device, method for producing outer packaging material for electricity storage device, and electricity storage device
CN114342160A (en) * 2019-08-20 2022-04-12 大日本印刷株式会社 Quality control method in forming process of outer packaging material for electricity storage device, method for manufacturing electricity storage device, outer packaging material for electricity storage device, and electricity storage device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6519715B2 (en) * 2016-10-26 2019-05-29 大日本印刷株式会社 Packaging material for battery, method for manufacturing the same, battery and method for manufacturing the same
WO2019112020A1 (en) * 2017-12-06 2019-06-13 大日本印刷株式会社 Battery packaging material, battery, method for manufacturing battery packaging material and battery, and polyester film
JP6690800B1 (en) * 2018-08-02 2020-04-28 大日本印刷株式会社 Power storage device exterior material, manufacturing method thereof, and power storage device
JP2020092082A (en) * 2018-11-26 2020-06-11 昭和電工パッケージング株式会社 Exterior case for power storage device and method for manufacturing the same

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03120332A (en) * 1989-10-03 1991-05-22 Kobe Steel Ltd Aluminum foil and its manufacture
CN1173427A (en) * 1996-01-10 1998-02-18 日本钢管株式会社 Organic composite coated steel plate
JP2000129384A (en) * 1998-10-23 2000-05-09 Sumitomo Light Metal Ind Ltd Aluminum alloy sheet for secondary battery case, its manufacture, and secondary battery case
JP2002352778A (en) * 2001-05-23 2002-12-06 Dainippon Printing Co Ltd Packaging material for battery
JP2003288865A (en) * 2002-03-28 2003-10-10 Toyo Aluminium Kk Laminated material for secondary battery container and secondary battery container
JP2012124068A (en) * 2010-12-09 2012-06-28 Toppan Printing Co Ltd Packaging material for lithium ion battery
CN103140592A (en) * 2010-09-16 2013-06-05 古河Sky株式会社 Material for molded packages
CN103208593A (en) * 2012-01-17 2013-07-17 昭和电工包装株式会社 Battery packaging materials, molding method of battery packaging materials, and lithium secondary battery
CN103223753A (en) * 2012-01-26 2013-07-31 昭和电工包装株式会社 Package material for shaping and lithium secondary battery
CN104109781A (en) * 2013-06-04 2014-10-22 美的集团股份有限公司 Aluminum alloy, micro channel aluminum flat tube, preparation method of micro channel aluminum flat tube, heat exchanger and electric appliance
CN104340514A (en) * 2013-08-09 2015-02-11 昭和电工包装株式会社 Molding packaging material
CN104425775A (en) * 2013-08-30 2015-03-18 凸版印刷株式会社 External packing material used for lithium ion battery
CN105039786A (en) * 2011-02-02 2015-11-11 日本轻金属株式会社 Aluminum alloy sheet for battery case having good moldability and weldability
CN105451993A (en) * 2013-08-09 2016-03-30 东丽株式会社 Laminated polyester film

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3866740B2 (en) * 2003-09-26 2007-01-10 株式会社東芝 Non-aqueous electrolyte secondary battery, assembled battery and battery pack
JP5365289B2 (en) * 2009-03-23 2013-12-11 凸版印刷株式会社 Manufacturing method of filling
JP2011003294A (en) * 2009-06-16 2011-01-06 Sony Corp Battery pack, and method of manufacturing the same
CN103781861B (en) * 2011-08-31 2016-11-16 住友化学株式会社 The manufacture method of coating fluid, laminated porous film and laminated porous film
CN103918100B (en) * 2011-11-07 2019-04-23 凸版印刷株式会社 Electrical storage device housing material
JP5626392B2 (en) * 2013-02-06 2014-11-19 大日本印刷株式会社 Battery packaging materials
CN104969378B (en) * 2013-02-06 2019-10-22 大日本印刷株式会社 Battery use packing material
CN114421061A (en) * 2016-04-06 2022-04-29 大日本印刷株式会社 Battery packaging material, method for producing same, and battery

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03120332A (en) * 1989-10-03 1991-05-22 Kobe Steel Ltd Aluminum foil and its manufacture
CN1173427A (en) * 1996-01-10 1998-02-18 日本钢管株式会社 Organic composite coated steel plate
JP2000129384A (en) * 1998-10-23 2000-05-09 Sumitomo Light Metal Ind Ltd Aluminum alloy sheet for secondary battery case, its manufacture, and secondary battery case
JP2002352778A (en) * 2001-05-23 2002-12-06 Dainippon Printing Co Ltd Packaging material for battery
JP2003288865A (en) * 2002-03-28 2003-10-10 Toyo Aluminium Kk Laminated material for secondary battery container and secondary battery container
CN103140592A (en) * 2010-09-16 2013-06-05 古河Sky株式会社 Material for molded packages
JP2012124068A (en) * 2010-12-09 2012-06-28 Toppan Printing Co Ltd Packaging material for lithium ion battery
CN105039786A (en) * 2011-02-02 2015-11-11 日本轻金属株式会社 Aluminum alloy sheet for battery case having good moldability and weldability
CN103208593A (en) * 2012-01-17 2013-07-17 昭和电工包装株式会社 Battery packaging materials, molding method of battery packaging materials, and lithium secondary battery
CN103223753A (en) * 2012-01-26 2013-07-31 昭和电工包装株式会社 Package material for shaping and lithium secondary battery
CN104109781A (en) * 2013-06-04 2014-10-22 美的集团股份有限公司 Aluminum alloy, micro channel aluminum flat tube, preparation method of micro channel aluminum flat tube, heat exchanger and electric appliance
CN104340514A (en) * 2013-08-09 2015-02-11 昭和电工包装株式会社 Molding packaging material
CN105451993A (en) * 2013-08-09 2016-03-30 东丽株式会社 Laminated polyester film
CN104425775A (en) * 2013-08-30 2015-03-18 凸版印刷株式会社 External packing material used for lithium ion battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113329876A (en) * 2019-01-23 2021-08-31 大日本印刷株式会社 Outer packaging material for electricity storage device, method for producing outer packaging material for electricity storage device, and electricity storage device
CN114342160A (en) * 2019-08-20 2022-04-12 大日本印刷株式会社 Quality control method in forming process of outer packaging material for electricity storage device, method for manufacturing electricity storage device, outer packaging material for electricity storage device, and electricity storage device

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