CN107078234A - Non-aqueous electrolyte battery outer packing layered product - Google Patents

Non-aqueous electrolyte battery outer packing layered product Download PDF

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Publication number
CN107078234A
CN107078234A CN201580051130.0A CN201580051130A CN107078234A CN 107078234 A CN107078234 A CN 107078234A CN 201580051130 A CN201580051130 A CN 201580051130A CN 107078234 A CN107078234 A CN 107078234A
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CN
China
Prior art keywords
resin
outer packing
layered product
battery outer
aqueous electrolyte
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201580051130.0A
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Chinese (zh)
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CN107078234B (en
Inventor
饭塚宏和
金田康宏
武井邦浩
堀智子
佐藤友纪
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Fujimori Kogyo Co Ltd
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Fujimori Kogyo Co Ltd
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Priority to CN202110446618.0A priority Critical patent/CN113517503A/en
Publication of CN107078234A publication Critical patent/CN107078234A/en
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Publication of CN107078234B publication Critical patent/CN107078234B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/116Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • H01M50/126Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered 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
    • B32B15/08Layered 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
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0278Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
    • C21D8/0284Application of a separating or insulating coating
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/78Cases; Housings; Encapsulations; Mountings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/102Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105Pouches or flexible bags
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/116Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117Inorganic material
    • H01M50/119Metals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/116Primary casings; Jackets or wrappings characterised by the material
    • H01M50/122Composite material consisting of a mixture of organic and inorganic materials
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy 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)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Laminated Bodies (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

The present invention provides a kind of non-aqueous electrolyte battery outer packing layered product, the generation of defect when it can reduce drawing and moulding while the mechanical strength of non-aqueous electrolyte battery outer packing layered product is improved, so as to improve the production efficiency of non-aqueous electrolyte battery.The present invention provides the battery outer packing layered product (10) for being laminated with SUS paper tinsels (12) and sealant (13).The surface coating (17) of 0.05 μm~1.0 μ m thicks that the water soluble paint containing water-soluble resin and metal fluoride is dried, solidified is formed with least sealant (13) side of SUS paper tinsels (12).There is coating layer (16) in the one side opposite with sealant (13) side of SUS paper tinsels (12).

Description

Non-aqueous electrolyte battery outer packing layered product
Technical field
Used the present invention relates to a kind of in the housing material of the secondary cells such as lithium ion battery, double layer capacitor etc. Non-aqueous electrolyte battery outer packing layered product.
Background technology
In recent years, with surging, popularization, wind-power electricity generation/solar power generation of electric automobile etc. of global environmental problem Effective utilize of natural energy becomes problem.Therewith, in these technical fields, the secondary cell such as lithium ion battery, double electricity Layer capacitor is of concern as the battery for storing electric energy.
The outer packing container of the lithium ion battery used as accommodating in electric automobile etc., is minimized and light to realize Quantify, employ at present be made up of the battery outer packing for being laminated with metal foil and resin bed with layered product container (for example, referring to Patent document 1).
Manufactured using the outer packing prepared by foregoing battery outer packing with layered product with container during secondary cell, for example, Carry out in the following manner.
By drawing and moulding etc., battery outer packing is shaped to the hypocrateriform with recess with layered product, and be used as container Main body.Battery is accommodated in the recess of the container body.Then, it is the covering material being made up of battery outer packing with layered product is overlapping Seal, thus, obtain in the flange part and the side edge part of covering material in aforesaid receptacle main body, and to aforesaid receptacle main body The secondary cell of battery is accommodated in outer container for packing.
Prior art literature
Patent document
Patent document 1:Japanese Unexamined Patent Publication 2000-357494 publications
The content of the invention
The technical problem to be solved in the present invention
In recent years, in the purposes such as battery used for electric vehicle, it is desirable to appearance and size bigger large-sized battery than ever Outer packing container and the outer packing that can be reduced the thickness of battery outer packing layered product and increase internal capacity are used Container.However, it is necessary to be shaped to the deeper container body of recess for the outer packing container of large-sized battery, therefore increase Technical difficulty is added.For example, when battery outer packing is carried out into deep-drawing shaping with layered product, it is possible to occur metal foil The breakage (broken etc.) of stripping and battery outer packing layered product between resin bed.In addition, reducing battery outer packing During with the thickness of layered product, it may occur that the problem of mechanical strength such as puncture strength is reduced.
Therefore, it is desirable to occur to lack when reducing drawing and moulding while the mechanical strength of battery outer packing layered product is improved Fall into, and improve the fabrication yield of non-aqueous electrolyte battery.
The present invention is exactly to complete in view of the foregoing, and its object is to provide a kind of non-aqueous electrolyte battery outer packing stacking Body, it occurs defect when can prevent drawing and moulding while non-aqueous electrolyte battery outer packing is improved with the mechanical strength of layered product, So as to improve the production efficiency of non-aqueous electrolyte battery.
Solve the technological means of technical problem
In order to solve above-mentioned problem, the present invention provides a kind of non-aqueous electrolyte battery outer packing layered product, its be laminated with SUS paper tinsels and Sealant, the surface coating of 0.05 μm~1.0 μ m thicks is formed with least aforementioned seal layer side of foregoing SUS paper tinsels, should Surface coating is that the water soluble paint containing water-soluble resin and metal fluoride is dried, solidifies and forms,
There is coating layer in the foregoing SUS paper tinsels one side opposite with aforementioned seal layer side, the coating layer be by selected from In by polyurethane resin, acrylic resin, polyvinylidene chloride, vinylidene chloride-chloroethylene copolymer resin, maleic anhydride modified Acrylic resin, polyester resin, epoxy resin, phenolic resin, phenoxy resin, fluororesin, cellulose ester resin, cellulose ether tree In the resin group that fat, polyamide, polyphenylene oxide resin, polyphenylene sulfide, polyarylether resin, polyether-ether-ketone resin are constituted At least one resin formed.
It is preferred that foregoing coating layer is to be coated solvent based coating and film hardening layer, the solvent formed by drying Type coating is that aforementioned resin is dissolved in organic solvent to be prepared from.
It is preferred that foregoing coating layer is coloured by the colouring agent of netrual colour or chromatic colour.
It is preferred that foregoing water soluble paint also includes organic sequestering agent.
It is preferred that aforesaid metal fluoride is to crosslink foregoing water-soluble resin and make the surface passivation of foregoing SUS paper tinsels Material.
Invention effect
Based on the present invention, resin coated layer is formed with the one side of SUS paper tinsels, is used therefore, it is possible to improve battery outer packing The mechanical strength and sliding of layered product.Because resin coated layer is by formed by coating, therefore to be firmly engaged in SUS paper tinsels.
Generally, the processability of SUS paper tinsels metal foils more other than aluminium foil etc. are poor, accordingly, it is difficult to when being set for deep-drawing shaping Condition, the phenomenon peeled off from adjacent layer also easily occurs in addition.
On the other hand, in the present invention, because resin coated layer is firmly engaged on SUS paper tinsels, therefore, it is possible to prevent Peel off.In addition, mechanical strength and sliding are improved based on resin coated layer, and therefore, when by drawing and moulding formation recess, The breakage (broken etc.) and deformation of battery outer packing layered product can be reduced.
Thus, when deep-drawing shaping is carried out, it can also prevent that the forming defect because of battery outer packing container from drawing The reduction of the battery production efficiency risen.Further, since being difficult to cause breakage of battery outer packing layered product etc., therefore, it is possible to anti- Only spill because of electrolyte, it is the reducing of battery performance caused by moisture immersion, on fire.
In the present invention, by forming resin coated layer, it can prevent because of external force damage battery outer packing stacking body surface The phenomenon in face.And then, even if in the case that battery outer packing contacts electrolyte with layered product, can also prevent the change of its outward appearance (discoloration etc.).
Because coating layer is formed by being coated with, therefore, compared with by the situation of bonding agent laminated resin film, energy It is enough relatively to thinly form battery outer packing layered product.Thus, the slimming of battery outer packing container can be achieved, by increasing capacitance it is possible to increase interior Volume, and the raising of cell volume efficiency can be reached.
Brief description of the drawings
Fig. 1 is the summary section for the first embodiment for representing the non-aqueous electrolyte battery outer packing layered product of the present invention.
Fig. 2 be represent the secondary cell that the non-aqueous electrolyte battery outer packing using Fig. 1 is prepared with layered product an example it is vertical Body figure.
Fig. 3 is the stereogram of the manufacturing process for the secondary cell for representing upper figure.
Fig. 4 is the summary section for the second embodiment for representing the non-aqueous electrolyte battery outer packing layered product of the present invention.
Fig. 5 is the summary section for the first variation for representing the battery outer packing layered product shown in Fig. 1.
Fig. 6 is the summary section for the second variation for representing the battery outer packing layered product shown in Fig. 1.
Fig. 7 is the summary section for the 3rd variation for representing the battery outer packing layered product shown in Fig. 1.
Embodiment
Show and (be also referred to as sometimes below " outside battery with layered product as the non-aqueous electrolyte battery outer packing of the present invention in Fig. 1 Be packed for layered product ") first embodiment battery outer packing layered product 10.In addition, being shown in Fig. 2 using the present invention The non-aqueous electrolyte battery outer packing container 20 of lithium ion battery that is fabricated by of battery outer packing layered product 10 (below sometimes Also referred to as " battery outer packing container 20 ") and secondary cell 40.
Show that the battery outer packing for an example for using the battery outer packing container as the present invention is held in Fig. 2 The stereogram of the secondary cell 40 of device 20.Secondary cell 40 is the built-in lithium ion battery in battery outer packing container 20 27 form.
Battery outer packing is overlapping by the way that container body 30 and covering material 33 are carried out with container 20, and to periphery 29 Sealed and formed, wherein, the container body 30 is implemented by first of the battery outer packing layered product as the present invention The battery outer packing layered product 10 of mode is constituted, and the covering material 33 is made up of battery outer packing layered product 10.Accompanying drawing Mark 28 is the contact conductor of the positive pole and negative pole that are connected to lithium ion battery 27.
As shown in figure 1, the battery outer packing of present invention layered product 10 has the knot of stacking SUS paper tinsels 12 and sealant 13 Structure, (the first coating of coating layer 16 is provided with the one side (Fig. 1 above side) opposite with sealant 13 of SUS paper tinsels 12 Layer).
In this specification, SUS paper tinsels refer to the metal foil being made up of stainless steel.
Printing layer 15 (the second coating layer) is formed between SUS paper tinsels 12 and coating layer 16.
In the side of sealant 13 (side below Fig. 1) and the side of coating layer 16 (side above Fig. 1) of SUS paper tinsels 12, It is respectively formed with surface coating 17,18.
In addition, the battery outer packing has printing layer 15 with layered product 10, but it is also possible to without printing layer 15.
Below, each layer is described in detail.
SUS paper tinsels 12 are stainless steel metal foils, are, for example, the stainless steel by austenite, ferrite, martensitic etc. Constitute.There are SUS304, SUS316, SUS301 etc. as austenite, have SUS430 etc. as ferrite, be used as martensitic There is SUS410 etc..
For SUS paper tinsels 12, therefore the mechanical strength such as its tensile strength, passes through drawing higher than other metal foils such as aluminium foils Shaping can reduce the generation of pin hole when forming recess, be difficult to cause the liquid of battery to leak phenomenon.In addition, the corrosion resistance of SUS paper tinsels 12 Better than other metal foils, therefore it is difficult to cause because of degradation phenomena caused by corrosion.
For the thickness of SUS paper tinsels 12, for example, it may be set to 5 μm~100 μm.The thickness of SUS paper tinsels 12 is preferably 5 μm~50 μm。
Thickness by setting SUS paper tinsels 12 can be assigned enough strong as more than 5 μm to battery outer packing layered product 10 Spend (puncture strength etc.), improve the durability of secondary cell 40.In addition, by setting the thickness of SUS paper tinsels 12 as less than 50 μm, energy It is enough to assign sufficient drawing processability to battery outer packing layered product 10.
Surface coating 17,18 is by being done to the water soluble paint containing water-soluble resin and metal fluoride Dry, solidification layer.It is preferred that foregoing water soluble paint includes organic sequestering agent.
The thickness of surface coating 17,18 is respectively set as more than 0.05 μm (preferably greater than 0.2 μm of thickness).Pass through The thickness of surface coating 17,18 is set as more than 0.05 μm, battery outer packing layered product 10 can be assigned enough resistance to Corrosivity, and the adhesive strength between SUS paper tinsels 12 and sealant 13 and SUS paper tinsels 12 and the layer of its upper strata side can be improved Between adhesive strength.
The thickness of surface coating 17,18 is set as less than 1.0 μm (being preferably less than 0.5 μm).Covered by setting surface The thickness of cap rock 17,18 is less than 1.0 μm, can be while the adhesive strength between SUS paper tinsels 12 and sealant 13 is improved, suppression Prepared material cost.
It is preferred that the thickness of surface coating 17,18 is the scope more than 0.2 μm and less than 0.5 μm.
As water-soluble resin, one or more of polyvinyl alcohol resin and polyvinylether resinoid are preferably used.
Polyvinyl alcohol resin refers to water-soluble selected from least one of polyvinyl alcohol resin and modified polyvinylalcohol resin Property resin.
Polyvinyl alcohol resin, for example can by by the polymer of vinyl ester monomer or its copolymer carry out saponification come Manufacture.
As the polymer or its copolymer of vinyl ester monomer, it can enumerate:Vinyl formate, vinyl acetate, The vinyl ester monomer of the aromatic vinyl base ester such as the fatty acid vinyl esters such as vinyl butyrate or vinyl benzoate etc. it is equal Polymers or copolymer, and the copolymer of other monomers copolymerizable with it etc..
As copolymerizable other monomers, for example, can enumerate:The olefines such as ethene, propylene, alkyl vinyl ether etc. contains The monomer of ether, DAAM, diacetone (methyl) acrylate, acetoacetic acid allyl ester, acetoacetate etc. contain Carbonyl (ketone group) monomer, the unsaturated carboxylic acid class such as acrylic acid, methacrylic acid, maleic anhydride, the halogen such as vinyl chloride, vinylidene chloride Change vinyl, and unsaturated sulfonic acid class etc..
For the saponification degree of polyvinyl alcohol resin, it is often preferred that 90~100mol%, more preferably 95mol% with On.
As the polyvinyl alcohol resin that can be used in the present invention, it can enumerate:Alkyl oxide modified polyvinyl alcohol resin, Carboxy-modified polyvinyl alcohol resin, acetoacetyl modified polyvinyl alcohol resin, acetamide modified polyvinyl alcohol resin, acrylonitrile Modified polyvinylalcohol resin, carboxy-modified polyvinyl alcohol resin, organosilicon-modified polyvinyl resin, ethylene modified polyvinyl alcohol Resin etc..Wherein, preferably alkyl oxide modified polyvinyl alcohol resin, carboxy-modified polyvinyl alcohol resin, carboxy-modified polyethylene Alcohol resin, acetoacetyl modified polyvinyl alcohol resin.
As the commercially available product of usual retrievable polyvinyl alcohol resin, for example, it can enumerate:JAPAN VAM&POVAL CO., J-POVAL (J- ポ バ ー Le) DF-20 (trade name) of LTD. (Japanese jealous woman PVC ポ パ ー Le (strain)) manufactures, Crossmer (the Network ロ of Nippon Carbide Industries Co., Inc. (Japanese カ ー バ イ De is industrial (strain)) manufacture ス マ ー) H serial (trade name) etc..Polyvinyl alcohol resin, which can both have been used, a kind of can also use two or more mixing Thing.
As polyvingl ether resinoid, it can enumerate:Ethyl vinyl ether, n-propyl vinyl ether, isopropyl-ethylene Base ether, n-butyl vinyl ether, IVE, 2- ethylhexyl vinyl ethers, cyclohexyl vinyl ether, norborny Vinyl ethers (norbornyl vinyl ether), allyl vinyl ether, norbornene vinyl ethers (norbornenyl Vinyl ether), 2- hydroxyethyl vinylethers, the homopolymer of the aliphatic ethylene base ether of diethylene glycol monovinyl base ether etc. or Copolymer, and the copolymer of other monomers copolymerizable with it etc..It is used as the other lists copolymerizable with vinyl ethers monomer Body, can enumerate other monomer identical monomers with above-mentioned vinyl ester monomers copolymerizable.
Particularly, 2- hydroxyethyl vinylethers, diethylene glycol monovinyl base ether, 2- hydroxypropyl vinyl are included in monomer The polyvingl ether of the aliphatic ethylene base ether of ether, the in addition hydroxyl of mono vinyl ether of various glycol or polyalcohol etc. Resinoid, with water solubility and can crosslink reaction with hydroxyl, therefore, be applicable in the present invention.
These polyvingl ether resinoids, because vinyl ether monomers can be used in resin manufacture (polymerization) process, because This, it is different from the polyvinyl alcohol resin being made via vinyl ester polymer, saponification process can be needed not move through and be made Make.Alternatively, it is also possible to be obtained using the copolymer containing vinyl ester monomer and vinyl ethers monomer or by its saponification The polyvinyl alcohol-co-vinyl base ether copolymer arrived.Can also use polyvinyl alcohol resin in addition to polyvingl ether resinoid with The mixture of polyvingl ether resinoid.
As water-soluble resin, any in polyvinyl alcohol resin and polyvingl ether resinoid can be both used only Kind, and both can also be used.
For metal fluoride, from the viewpoint of needs are mixed with foregoing water-soluble resin, preferably it has water-soluble Property.
As the specific example of metal fluoride, for example, charomic fluoride, ferric flouride, zirconium fluoride, titanium fluoride, fluorine can be enumerated Change hafnium, fluotitanic acid and their salt etc..
Metal fluoride has the effect for improving electrolyte resistance performance.That is, the surface of SUS paper tinsels 12, raising pair can be passivated The corrosion resistance of electrolyte.Metal fluoride, which also has, makes the effect that foregoing water-soluble resin is crosslinked.
Organic sequestering agent is can be chemically bonded and be formed the organic species of metal ion complex with cation.
Organic sequestering agent causes the metallic compound (chromium oxide etc.) from metal fluoride to enter with foregoing water-soluble resin Line unit closes and improved the compression strength of surface coating 17,18, therefore, and the thickness even in surface coating 17,18 for example surpasses Cross in the case of 0.2 μm and less than 1.0 μm, surface coating also will not be brittle and crack, peel off.Thereby, it is possible to improve The adhesive strength between adhesive strength and SUS paper tinsels 12 and the layer of its upper layer side between SUS paper tinsels 12 and sealant 13.
In addition, organic sequestering agent has makes water solubility by occurring to chemically react with water-soluble resin or metal fluoride The effect of the resistance to aquation of resin.
As organic sequestering agent, for example, it can be used:Amino carboxylic acid quasi-chelate compound, phosphonic acid type chelants, hydroxycarboxylic acid chela Mixture, (poly-) phosphoric acid quasi-chelate compound.
As amino carboxylic acid quasi-chelate compound, for example, can enumerate:NTA (NTA), ethoxy iminodiacetic acid (salt) Sour (HIDA), ethylenediamine tetra-acetic acid (EDTA), hydroxyethylethylene diamine tri-acetic acid (HEDTA), diethylenetriamine pentaacetic acid (DTPA), three The hexaacetic acid of second four (TTHA), trans cvclohexvl ethylenediamine tetraacetic acid (EDTA) (CyDTA), 1,2 diaminopropane tetraacetic acid (1,2-PDTA), 1,3- Trimethylen-edinitrilo-tetraacetic acid (1,3-PDTA), 1,4- butanediamine tetraacethyl (1,4-BDTA), 1,3- diaminourea -2- hydroxy propane tetraacethyls (DPTA-OH), glycoletherdiaminotetraacetic acid (GEDTA), ethylenediamine ortho-hydroxyphenyl acetic acid (EDHPA), the amber of SS- ethylenediamines two Sour (SS-EDDS), ethylenediamine disuccinic acid (EDDS), Beta-alanine oxalic acid (ADA), MDGA (MGDA), L-Aspartic acid-N, N- oxalic acid (ASDA), Pidolidone-N, N- oxalic acid (GLDA), N, double (2- hydroxybenzyls) second two of N'- Amine-N, N'- oxalic acid (HBEDDA).
As phosphonic acid type chelants, for example, can enumerate:N, N, N- trimethylene phosphonic (NTMP), 1- hydroxy ethylenes- 1,1- di 2 ethylhexyl phosphonic acids (HEDP), ethylenediamine-N, N, N', N'- tetramethylene phosphonic acid (EDTMP), diethylenetriamine pentamethylene phosphonic acids (DTPMP), 2- phosphinylidyne butanes -1,2,4- tricarboxylic acids (PBTC).
As hydroxycarboxylic acid quasi-chelate compound, there are glycolic, citric acid, malic acid, gluconic acid, glucoheptonic acid etc..
As (poly-) phosphoric acid quasi-chelate compound, there are metaphosphoric acid, tripolyphosphate, four polyphosphoric acids, pyrophosphoric acid, orthophosphoric acid (Orthophosphoric acid), hexa metaphosphoric acid and their salt etc..
As the commercially available product of typically available organic sequestering agent, for example, there is Chelest Corporation (キ レ ス ト (strain)) manufacture Chelest PD-4H (trade name) (PDTA), Chelest PH-540 (trade name) (EDTMP) etc..
The amount of contained water-soluble resin is preferably 0.1~1 mass % in foregoing water soluble paint.
By setting the addition of water-soluble resin as more than 0.1 mass %, it is possible to increase SUS paper tinsels 12 and sealant 13 it Between adhesive strength.In addition, by setting the addition of water-soluble resin as below 1 mass %, it is possible to increase SUS paper tinsels 12 with it is close Adhesive strength between sealing 13.
In foregoing water soluble paint the amount of contained metal fluoride be preferred with 0.1~2.5 mass % (be preferably 0.8~ 2.5 mass %).
By setting the addition of metal fluoride as more than 0.1 mass %, it is possible to increase SUS paper tinsels 12 are to the resistance to of electrolyte Corrosivity.In addition, the addition by setting metal fluoride is below 2.5 mass %, it can avoid producing in water soluble paint Raw precipitation, and suppress the uneven of film.
When using organic sequestering agent, the amount of contained organic sequestering agent is with 0.1~1 mass % in foregoing water soluble paint It is preferred (being preferably 0.3~1 mass %).
By setting the addition of metal fluoride as more than 0.1 mass %, it is possible to increase surface coating 17,18 it is anti- Compressive Strength, and suppress the crackle of surface coating 17,18, peel off.In addition, by setting the addition of organic sequestering agent as 1 matter Below % is measured, enough intensity can be assigned to surface coating 17,18.
Surface coating 17,18 can be carried out by the way that foregoing water soluble paint is coated on SUS paper tinsels 12, and by baker etc. Heat drying, baking bonding and Cross-linked and formed.
In addition, battery outer packing shown in Fig. 1 is with layered product 10, being formed with surface on two faces of SUS paper tinsels 12 covers Cap rock 17,18, but as long as surface coating is at least formed on the side of sealant 13 of SUS paper tinsels 12.I.e. or from figure 1 battery outer packing is with composition (the battery outer packing layered product shown in Fig. 5 that surface coating 18 is saved in layered product 10 60)。
Coating layer 16 (the first coating layer) be by selected from by polyurethane resin, acrylic resin, polyvinylidene chloride, Vinylidene chloride-chloroethylene copolymer resin, maleic anhydride modified acrylic resin, polyester resin, epoxy resin, phenolic resin, Phenoxy resin, fluororesin, cellulose ester resin, cellulose ether resins, polyamide, polyphenylene oxide resin (PPE), polyphenylene sulfide At least one of the resin group that ether resin (PPS), polyarylether resin (PAE), polyether-ether-ketone resin (PEEK) are constituted resin To be formed.
In coating layer 16, you can one kind in the resin of composition aforementioned resin group is used alone, also can and with therein two More than kind.
It is preferred that coating layer 16 is made up of the material of excellent heat resistance.
It is preferred that coating layer 16 is the outermost layer of battery outer packing layered product 10.
By forming coating layer 16, it is possible to increase while battery outer packing is with the insulating properties of layered product 10, prevent battery The scratch on the outer packing surface of layered product 10.Even if in addition, battery outer packing with layered product 10 contact electrolyte in the case of, The change (discoloration etc.) of its outward appearance can be prevented.
It is preferred that coating layer 16 is to be coated solvent based coating and film hardening layer formed by drying, wherein, it is described Solvent based coating is that aforementioned resin is dissolved in organic solvent to be prepared from.
As organic solvent, for example, can enumerate:Toluene, dimethylbenzene, n-hexane, hexamethylene, hexahydrotoluene, positive heptan The varsols such as alkane, tridecane, the tetradecane;Ethyl acetate, butyl acetate, acetic acid methoxybutyl, cellosolve acetate (Acetic Acid cellosolve), amyl acetate, n-propyl acetate, the esters solvent such as isopropyl acetate;Acetone, methyl ethyl ketone (MEK), the ketones solvent such as methyl iso-butyl ketone (MIBK), DIBK (diisobutyl ketone), cyclohexanone, DAA (DAA);Methanol, ethanol, fourth The alcohols solvents such as alcohol, propyl alcohol, isopropanol, normal propyl alcohol;Methyl cellosolve, ethyl cellosolve, butyl cellosolve, dioxanes, second two Alcohol ethers solvent such as diethylene glycol dimethyl ether etc..Organic solvent both can be used alone one kind therein, can also and with two or more.
In solvent based coating, the additive of drier, stabilizer etc. can also be added.
For for forming the solvent based coating of coating layer 16, for example, can using flexographic printing process, woodburytype, Printing process known to silk screen print method etc. is coated.
Coating layer 16 can be carried out by the way that the colouring agent of netrual colour or chromatic colour is made an addition in aforementioned solvents type coating Color.
The color of coating layer 16 can arbitrarily be selected., both can be at Zone Full (or regional area) for coating layer 16 Continuously and equably colour, mutually different color (or mutually identical color) can also be colored as respectively in multiple regions.
Coating layer 16 can also be coloured in the way of showing word, figure, image, style etc..These words etc., example Such as, trade name, producer etc. can be shown as.
By implementing to colour to coating layer 16, it is possible to increase the appearance design of battery outer packing layered product 10.
As foregoing colorants, pigment or dyestuff can be used.
As pigment, for example, can enumerate:Quinoline azone class, Anthraquinones, perylenes class, pyrene ketone, diketopyrrolo-pyrrole class, Isoindoline ketone, condensation azo, benzimidazole ketone, monoazo class, insoluble azo, aphthols, yellow anthracene copper class, anthracene Plain miazines, quinoline yellow class, pyranthrone, pyrazoline ketone, thioindigo class, anthanthrene quinones, dioxazines, phthalocyanines, indigo The organic pigment of Anthraquinones etc.;The metal complex of Nie bioxin Huang (nickel dioxine yellow), copper azomethine Huang etc. Thing;The metal oxide of titanium oxide, iron oxide, zinc oxide etc.;The metal salt of barium sulfate, calcium carbonate etc.;Carbon black, aluminium, mica etc. Inorganic pigment etc..
Azo, quinolines, stilbene class, thiazoles, indigoid type, Anthraquinones, oxazine classes etc. can be enumerated as dyestuff.
Coating layer 16 can also be coloured by using the solvent based coating containing ink.Ink is, for example, in polyurethane Foregoing colorants are added in the ink binder resin of class, acrylic compounds etc. to be prepared from.
The thickness of coating layer 16, for example, can be set to more than 0.1 μm.More preferably coating layer 16 has more than 2 μm of thickness.
By the way that the thickness of coating layer 16 is set into more than 2 μm, can be improved while insulating properties is improved prevents outside battery It is packed for the effect of the surface scratches of layered product 10.In addition, contacting the feelings of electrolyte with layered product 10 even in battery outer packing Under condition, the change (discoloration etc.) of its outward appearance also can be reliably prevented.
The thickness of coating layer 16, for example, can be set to less than 20 μm.By the model that the thickness of coating layer 16 is set to 2~20 μm Enclose, the integral thickness of battery outer packing layered product 10 can be suppressed.
It is preferred that the confficient of static friction (according to JIS K7125) on the surface of coating layer 16 is less than 0.3.
By the way that within the range, confficient of static friction setting can be reduced into battery outer packing layered product during drawing and moulding 10 breakage and deformation, can easily carry out drawing and moulding.
Printing layer 15 (the second coating layer) may be set to the composition same with coating layer 16.
Printing layer 15 is by (being selected as the material that workable material is illustrated in coating layer 16 from aforementioned resin group At least one resin) formed.The constituent material of printing layer 15 both can be the constituent material identical material with coating layer 16 Material or the material different from the constituent material of coating layer 16.
For printing layer 15 and bond layer 14, in the same manner as coating layer 16, preferably solvent based coating is applied Film hardening layer formed by cloth and drying, wherein, the solvent based coating is that aforementioned resin is dissolved in organic solvent to make It is standby to form.
, can be by the way that foregoing colorants be made an addition in the same manner as coating layer 16 for printing layer 15 and bond layer 14 Coloured in aforementioned solvents type coating.The color of printing layer 15 can arbitrarily be selected.To printing layer 15 and first bonding agents layer For 14, it both can continuously and equably colour, can also respectively be coloured in multiple regions at Zone Full (or regional area) For mutually different color (or mutually identical color).
Printing layer 15 and bond layer 14 can also be coloured in the way of showing word, figure, image, style etc.. These words etc., for example, trade name, producer etc. can be shown as.
By being coloured to printing layer 15 and bond layer 14, it is possible to increase the outward appearance of battery outer packing layered product 10 Design.
The preferred thickness of printing layer 15 is, for example, 0.1 μm~10 μm.
Printing layer 15 such as can using flexographic printing process, woodburytype, silk screen print method known to printing process come Formed.
In addition, the battery outer packing layered product 10 illustrated in Fig. 1 has printing layer 15 but it is also possible to be no printing layer 15 composition (the battery outer packing layered product 70 shown in Fig. 6).Alternatively, it is also possible to being from Fig. 1 battery outer packing stacking The composition (the battery outer packing layered product 80 shown in Fig. 7) of surface coating 18 and printing layer 15 is saved in body 10.
Sealant 13 is made up of polyolefin resin, and is to turn into the layer of most inner side in secondary cell 40 (reference picture 2).
Why sealant 13 is arranged at most inner side, is the electrolyte because of polyolefin resin to lithium ion battery Tolerance is excellent, and the good reason of heat sealability.Here, so-called heat sealability refers to sealing stability at high temperature.
The polyolefin resin for preferably comprising sealant 13 mainly contains any in acrylic resin, polyvinyl resin Person.
Sealant 13 has single layer structure, or with the structure being made up of the stacked film of multilayer.
It is preferred that the face of the interface side with SUS paper tinsels 12 of sealant 13 is made up of thermal bonding vistanex, this is hot sticky Connecing property vistanex contains selected from by maleic anhydride modified vistanex (the first vistanex), the tree containing epoxy radicals The conjunction of the alloy material (the second vistanex) of fat and vistanex and the resin and vistanex of Han oxazolinyls One or more of resin group that golden material (trimerise olefins resin) is constituted.
When sealant 13 is individual layer, preferably sealant 13 is made up of foregoing thermal bonding vistanex.
When sealant 13 has sandwich construction, preferably sealant 13 has by foregoing with the interface side of SUS paper tinsels 12 The layer that thermal bonding vistanex is constituted.
As foregoing thermal bonding vistanex, foregoing first vistanex~trimerise olefins are can be used alone One kind in resin, can also be used in mixed way therein two or more.
Foregoing first vistanex~trimerise olefins resin is hard with water-soluble resin contained in surface coating 17 Admittedly be combined, therefore, it is possible to improve the bond strength between sealant 13 and surface coating 17.
In the case of using two or more in foregoing first vistanex~trimerise olefins resin, preferably enter one Step is kneaded these vistanexes, alloying.
Maleic anhydride modified vistanex is that a part for vistanex molecule is modified by maleic anhydride Resin.
As the commercially available product of typically available maleic anhydride modified vistanex, it can enumerate:Mitsui Chemicals (strain) Admer (the trade names of manufacture:" ア ド マ ー ") (as sour modified poly ethylene, for example, there are SF600, SF700, NE060;As Sour modified polypropene, for example, have QF551), Mitsubishi Chemical's (strain) manufacture Modic (trade names:" モ デ ィ ッ Network ") (change as acid Property polyethylene, for example, have M545;As sour modified polypropene, such as there is P555).
As the resin containing epoxy radicals, it can be used:A part for vistanex molecule is modified as to the resin of epoxy radicals; And, by epoxide or the resin containing epoxy radicals and vistanex carry out resin obtained from melting mixing.
As the preferred commercially available product of workable epoxide in the present invention, for example, there is Mitsubishi chemical Co., Ltd's manufacture " Epikote (エ ピ コ ー ト) 1001 " etc..
In addition, as the resin containing epoxy radicals, there is " the MODIPER (モ デ ィ パ ー) that NOF Corp manufactures A4100 " etc..
As the resin of Han oxazolinyls, it can be used:By a part of Gai Wei oxazolinyls of vistanex molecule Resin;And , resins Jiang obtained from oxazoline compound and vistanex carry out melting mixing.
It is used for this invention oxazoline compounds as Ke, there are 2- isopropenyl -2- oxazolines etc..Zuo Wei oxazoline chemical combination The preferred commercially available product of thing, for example, there is " EPOCROS (エ Port Network ロ ス) WS-500 " etc. that Nippon Shokubai Co., Ltd manufactures.
The thickness of sealant 13 is preferably 20 μm~50 μm., can by the way that the thickness of sealant 13 is set in into the scope Improve the compressive resistance in heat-sealing portion and suppress inside moisture immersion battery outer packing container 20.
In addition, by the way that the thickness of sealant 13 is set in the range of this, battery outer packing layered product 10 can be suppressed Integral thickness, realize the slimming of secondary cell 40.
When sealant 13 has sandwich construction, due to foregoing thermal bonding polyolefin resin layer, therefore, it is possible to logical Overheat lamination is be bonded with the progress of SUS paper tinsels 12.
The adhesive strength of sealant 13 and SUS paper tinsels 12 is that (180 degree is shelled according to assay method B specified in JIS C6471 From) be measured, and preferably more than 5N/15mm.
Battery outer packing for example may be set to less than 70 μm with the integral thickness of layered product 10.Based on this, two can be realized The slimming of primary cell 40.
The tension fracture elongation rate of preferred battery outer packing layered product 10 be on MD directions, TD directions 40% with On.
If tension fracture elongation rate is within the range, during by drawing and moulding formation recess, corner portion is fully drawn Stretch, therefore, will not be broken.
Tension fracture elongation rate is according to JIS K7127 and is measured within 50mm/ minutes and calculated with draw speed.
As the non-aqueous electrolyte battery using battery outer packing layered product, the lithium-ion electric as secondary cell can be enumerated Pond, double layer capacitor etc. have used the non-aqueous electrolyte battery of organic bath in the electrolytic solution.As organic bath, be typically with The carbonates such as propylene carbonate (PC), diethyl carbonate (DEC), ethylene carbonate as medium organic bath, but simultaneously It is not particularly limited in this.
Then, the manufacture method of the secondary cell 40 shown in Fig. 2 is illustrated.
First, as shown in Fig. 3 (a), by drawing and moulding etc., battery outer packing layered product 10 is shaped to recess 31 hypocrateriform, obtains container body 30.The depth of recess 31, for example, can be more than 2mm.
Lithium ion battery (Fig. 2 lithium ion battery 27) is accommodated in the recess 31 of container body 30.
Then, as shown in Fig. 3 (b), the covering material 33 being made up of battery outer packing layered product 10 is overlapped in container On main body 30, and flange (flange) portion 32 to container body 30 and the periphery 34 of covering material 33 are sealed, by This obtains the secondary cell 40 shown in Fig. 2.
Because the battery outer packing layered product 10 of the present invention is formed with coating layer 16, therefore, it is possible to improve battery outsourcing The mechanical strength and sliding of dress layered product 10.Because coating layer 16 is by formed by coating, therefore firmly to be connect Together on SUS paper tinsels 12.
Generally, compared with other metal foils such as aluminium foil, the poor in processability of SUS paper tinsels, accordingly, it is difficult to be set for deep-drawing into Condition during type.In addition, being also easy to cause the phenomenon peeled off from the layer connected.
On the other hand, in battery outer packing of the invention with layered product 10, coating layer 16 is firmly engaged in SUS paper tinsels On 12, therefore, it is possible to prevent from peeling off.In addition, improving mechanical strength and sliding based on coating layer 16, therefore, passing through drawing When shaping forms recess, the breakage (broken etc.) and deformation of battery outer packing layered product 10 can be reduced.
Therefore, even in carry out deep-drawing shaping in the case of, can also prevent because battery outer packing container 20 into The reduction of the production efficiency of secondary cell 40 caused by type defect.Further, since being difficult to cause battery outer packing layered product 10 breakage etc., the reducing of battery performance, on fire therefore, it is possible to prevent from spilling because of electrolyte, caused by moisture immersion.
In addition, by forming coating layer 16, surface damage because of external force battery outer packing layered product 10 can be prevented Phenomenon.
And then, in the case that battery outer packing contacts electrolyte with layered product 10, it can also prevent its outward appearance Change (discoloration etc.).
For coating layer 16, formed by then passing through coating, thus with feelings by bonding agent laminated resin film Condition is compared, and can relatively thinly form battery outer packing layered product 10.Thus, battery outer packing can be achieved slim with container 20 Change.
The battery outer packing of the present invention is with layered product 10, and can improving mechanical strength by using SUS paper tinsels 12, (stretching is strong Degree etc.), therefore, it is possible to reduce the generation of broken and pin hole (pin-hole) when by drawing and moulding formation recess.
Further, since using the SUS paper tinsels 12 of high mechanical strength, therefore, in conveying, secondary cell for assembling 40, no longer needing The structure (overcoat etc.) for protecting secondary cell 40 or can be simplified.Thereby, it is possible to realize reduction and the bag of packing cost The miniaturization of assembling device.Further, since the SUS paper tinsels of high mechanical strength have been used, therefore, it is possible to reduce battery outer packing stacking The thickness of body and increase internal capacity, reach the raising of cell volume efficiency.
Also, due to the reason using the SUS paper tinsels 12 for being formed with surface coating 17, even if because being immersed in outside battery Moisture inside container for packing 20 make electrolyte decomposition and in the case of producing acid, it is also difficult to cause and deteriorated caused by corrosion Problem.Therefore, it is possible to prevent the leakage of electrolyte, the reduction of battery performance and on fire caused by metal foil is corroded.
Battery outer packing is formed with surface coating 17 with layered product 10 in the side of sealant 13 of SUS paper tinsels 12, and And, when sealant 13 has sandwich construction, due to foregoing thermal bonding polyolefin resin layer, therefore, it is possible to very hard Admittedly adhering and sealing layer 13 with SUS paper tinsels 12.
Therefore, when by drawing and moulding formation recess, the broken of battery outer packing layered product 10 can prevented Simultaneously, it is to avoid the stripping between sealant 13 and SUS paper tinsels 12.Thereby, it is possible to reduce battery outer packing container 20 in shaping Occur the phenomenon of defect, improve the fabrication yield of secondary cell 40, and improve production efficiency.
In addition, in battery outer packing with layered product 10, it is bonding strong between sealant 13 and SUS paper tinsels 12 by improving Degree, can prevent moisture from the outside inside for being immersed in battery outer packing container 20.Therefore, it is possible to suppress electrolyte through when Deterioration, extends the life of product of secondary cell 40.
The battery outer packing layer of battery outer packing of the invention with the second embodiment of layered product is shown as in Fig. 4 Stack 50.
In terms of battery outer packing is formed between coating layer 16 and printing layer 15 substrate layer 11 with layered product 50 and In terms of bond layer 14 are formed between printing layer 15 and surface coating 18, different from the battery outer packing shown in Fig. 1 With layered product 10.
As long as substrate layer 11 just has no particular limits with enough mechanical strengths, for example, can use:Gather to benzene two The polyester tree of formic acid glycol ester (PET), PEN (PEN), polybutylene terephthalate (PBT) (PBT) etc. Fat;The polyamide of nylon (Ny) etc.;The vistanex of oriented polypropylene (OPP) etc.;By polyether-ether-ketone (PEEK), polyphenyl The synthetic resin film of the compositions such as thioether (PPS).
For substrate layer 11, preferably it is made up of the film of the single or multiple lift of the heat-resistant resin film of more than 200 DEG C of fusing point. As this heat-resistant resin film, such as having PET film, pen film, PBT films, nylon membrane, PEEK films, PPS films, but particularly preferably The favourable PET film in terms of cost.
For bond layer 14, as long as can just have no particular limits substrate layer 11 is be bonded with SUS paper tinsels 12, example Such as, it can be formed by polyurethanes bonding agent, epoxies bonding agent etc..Bond layer 14 can be for example, by dry lamination method To be formed.
The battery outer packing is with layered product 50, and substrate layer 11 is formed by heat-resistant resin film, therefore, it is possible to enter one Step improves the durability of secondary cell 40.
More than, with reference to the accompanying drawings of embodiments of the present invention, but the invention is not limited in these embodiments, Various changes can be carried out in the range of spirit of the invention by not changing.
The explanation of reference
10、50:Non-aqueous electrolyte battery outer packing layered product;12:SUS paper tinsels;13:Sealant;14:Bond layer;15:Printing Layer;16:Coating layer;17、18:Surface coating;20:Non-aqueous electrolyte battery outer containter;27:Lithium ion battery;40:Secondary electricity Pond.

Claims (5)

1. a kind of non-aqueous electrolyte battery outer packing layered product, it is characterised in that
The laminate layers are laminated with SUS paper tinsels and sealant,
The surface coating of 0.05 μm~1.0 μ m thicks, the surface are formed with least described sealant side of the SUS paper tinsels Coating is that the water soluble paint containing water-soluble resin and metal fluoride is dried, solidifies and forms,
There is coating layer in the one side opposite with the sealant side of the SUS paper tinsels, the coating layer is by selected from by gathering Urethane resin, acrylic resin, polyvinylidene chloride, vinylidene chloride-chloroethylene copolymer resin, maleic anhydride modified polypropylene It is resin, polyester resin, epoxy resin, phenolic resin, phenoxy resin, fluororesin, cellulose ester resin, cellulose ether resins, poly- In the resin group that amide resin, polyphenylene oxide resin, polyphenylene sulfide, polyarylether resin, polyether-ether-ketone resin are constituted extremely A kind of few resin is formed.
2. non-aqueous electrolyte battery outer packing layered product according to claim 1, it is characterised in that
The coating layer is to be coated solvent based coating and film hardening layer formed by drying, and the solvent based coating is The resin is dissolved in organic solvent and is prepared from.
3. non-aqueous electrolyte battery outer packing layered product according to claim 1 or 2, it is characterised in that
The coating layer is coloured by the colouring agent of netrual colour or chromatic colour.
4. according to non-aqueous electrolyte battery outer packing layered product according to any one of claims 1 to 3, wherein,
The water soluble paint also includes organic sequestering agent.
5. according to non-aqueous electrolyte battery outer packing layered product according to any one of claims 1 to 4, it is characterised in that the gold Belong to the material that fluoride is the surface passivation for making the water-soluble resin crosslink and make the SUS paper tinsels.
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