WO2006123720A1 - 蓄電池と絶縁体及びそれを用いた電池用容器 - Google Patents
蓄電池と絶縁体及びそれを用いた電池用容器 Download PDFInfo
- Publication number
- WO2006123720A1 WO2006123720A1 PCT/JP2006/309866 JP2006309866W WO2006123720A1 WO 2006123720 A1 WO2006123720 A1 WO 2006123720A1 JP 2006309866 W JP2006309866 W JP 2006309866W WO 2006123720 A1 WO2006123720 A1 WO 2006123720A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin
- lid
- plate
- annular member
- hole
- Prior art date
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- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- FZENGILVLUJGJX-UHFFFAOYSA-N acetaldehyde oxime Chemical compound CC=NO FZENGILVLUJGJX-UHFFFAOYSA-N 0.000 description 1
- PXAJQJMDEXJWFB-UHFFFAOYSA-N acetone oxime Chemical compound CC(C)=NO PXAJQJMDEXJWFB-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
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- 238000004587 chromatography analysis Methods 0.000 description 1
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- 229920001577 copolymer Polymers 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- VEIOBOXBGYWJIT-UHFFFAOYSA-N cyclohexane;methanol Chemical compound OC.OC.C1CCCCC1 VEIOBOXBGYWJIT-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- KHEMNHQQEMAABL-UHFFFAOYSA-J dihydroxy(dioxo)chromium Chemical compound O[Cr](O)(=O)=O.O[Cr](O)(=O)=O KHEMNHQQEMAABL-UHFFFAOYSA-J 0.000 description 1
- WMYWOWFOOVUPFY-UHFFFAOYSA-L dihydroxy(dioxo)chromium;phosphoric acid Chemical compound OP(O)(O)=O.O[Cr](O)(=O)=O WMYWOWFOOVUPFY-UHFFFAOYSA-L 0.000 description 1
- BEPAFCGSDWSTEL-UHFFFAOYSA-N dimethyl malonate Chemical compound COC(=O)CC(=O)OC BEPAFCGSDWSTEL-UHFFFAOYSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Natural products C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 1
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- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 1
- 238000002795 fluorescence method Methods 0.000 description 1
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- 239000007789 gas Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
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- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
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- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 description 1
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- AYLRODJJLADBOB-QMMMGPOBSA-N methyl (2s)-2,6-diisocyanatohexanoate Chemical compound COC(=O)[C@@H](N=C=O)CCCCN=C=O AYLRODJJLADBOB-QMMMGPOBSA-N 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
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- 125000002950 monocyclic group Chemical group 0.000 description 1
- IONSZLINWCGRRI-UHFFFAOYSA-N n'-hydroxymethanimidamide Chemical compound NC=NO IONSZLINWCGRRI-UHFFFAOYSA-N 0.000 description 1
- RCHKEJKUUXXBSM-UHFFFAOYSA-N n-benzyl-2-(3-formylindol-1-yl)acetamide Chemical compound C12=CC=CC=C2C(C=O)=CN1CC(=O)NCC1=CC=CC=C1 RCHKEJKUUXXBSM-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- NRZWYNLTFLDQQX-UHFFFAOYSA-N p-tert-Amylphenol Chemical compound CCC(C)(C)C1=CC=C(O)C=C1 NRZWYNLTFLDQQX-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- 239000011134 resol-type phenolic resin Substances 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
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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
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- 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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/191—Inorganic material
-
- 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
- H01M50/147—Lids or covers
-
- 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
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/154—Lid or cover comprising an axial bore for receiving a central current collector
-
- 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
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- 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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/193—Organic material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a technology for enhancing sealing performance in an electrode rod penetrating portion of a storage battery.
- the present invention also relates to an insulator excellent in electrolytic solution corrosion resistance and a battery container using the same, and more specifically, an insulator made of polyethylene terephthalate resin and a polyester resin-coated aluminum plate formed from the insulator.
- the battery container attached to the lid member.
- an electrical storage element In a storage battery, an electrical storage element is housed in a sealed case, and electrical energy is taken out from the electrical storage element via an electrode. Therefore, the electrode needs to protrude through the lid of the sealed case.
- Patent Document 1 JP 2000-150324 A (Fig. 3)
- FIG. 10 is a diagram for explaining the basic configuration of the conventional technique.
- an aluminum lid 102 is fixed to the end of an aluminum cylinder 101 by a force method.
- Body 1
- a feature is that an aluminum terminal 104 is fixed to 02 through a resin sealing member 103.
- the resin includes soft resin and hard resin. Since the resin sealing member 103 is a structural part, hard resin is used. Hard rosin has high strength but lacks elasticity.
- Patent Document 2 JP-A-8-69783 (FIG. 14)
- FIG. 14 is a structural diagram of a conventional technique using an O-ring.
- a concave portion 112 is formed in a metal lid 111, a small-diameter concave portion 113 is formed below the concave portion 112, and the small-diameter concave portion 113 is formed.
- a through hole 114 is formed.
- the electrode rod 115 is passed through the through hole 114, the O-ring 116 is fitted into the electrode port 115, and the O-ring 116 is fitted into the small-diameter recess 113.
- the basic structure is that the terminal 118 is connected to the upper part of the electrode rod 115, and finally the resin sealant 117 is filled in the recess 112 and hardened.
- the O-ring 116 is a line or a very thin band that goes around the outer peripheral surface of the electrode rod 115 in principle and forms a seal line or a seal surface. If the electrode rod 115 or the O-ring 116 is damaged or occurs, liquid leakage occurs through the scratch. This flaw can occur during processing, assembly, or aging.
- the O-ring 116 is a separate part, and there is a risk of forgetting to attach the O-ring 116. Even if you forget to attach the O-ring 116, the resin sealant 117 will provide sealing performance for the time being Because of this, it is delayed to notice the defect of forgetting to attach the O-ring 116. Therefore, there is room for improvement.
- a battery container used for a battery, an electrolytic capacitor, or the like is formed by punching a metal plate such as an aluminum plate into a disk shape and using it as a drawing blank.
- the can body is formed by this processing method, and a canopy is placed on the opening at the top of the can body and wrapped and tightened for sealing.
- an insulator such as a synthetic resin that electrically insulates is provided.
- insulators are made by molding urethane rubber or polypropylene resin in accordance with the shape of the through-holes, and are attached to a metal plate such as an aluminum plate by an adhesive.
- the battery contents are filled with an electrolyte mainly composed of highly corrosive propylene carbonate salt.
- an electrolyte mainly composed of highly corrosive propylene carbonate salt.
- the urethane rubber, polypropylene resin, etc. The formed insulator has insufficient corrosion resistance and often leaked content.
- a polyester resin-coated aluminum plate has been used as a container material having excellent corrosion resistance.
- the polyester resin film coated on the surface of the lid member to which the insulator is attached has a problem that the adhesiveness to the insulator is not sufficient.
- Patent Document 3 Japanese Patent No. 3427216
- Patent Document 4 Japanese Patent Laid-Open No. 2002-343310
- An object of the present invention is to provide a storage battery that can further enhance the sealing performance in the electrode rod penetrating portion of the storage battery.
- Another object of the present invention is to provide a technique capable of enlarging the area of the sealing surface in the sealed portion of the storage battery.
- the present invention provides a rubber-based sealing material corresponding to an O-ring at the sealing portion of a storage battery. It is an object to provide a technology capable of reliably preventing forgetting.
- the present invention has been made in view of the above-described problems, and an object thereof is to provide an insulator having excellent corrosion resistance against highly corrosive battery contents. . Furthermore, even when using a polyester resin-coated aluminum plate as the container material, a battery container is provided in which the insulator is firmly attached to the lid member using an adhesive having excellent adhesion to the insulator. The purpose is to do.
- a hole is formed in the lid body, an annular member is provided so as to surround the hole, a current collecting plate is disposed on one side of the lid body, and the current collecting plate force
- the extended electrode rod is protruded from the hole
- a pressing plate is arranged on the other side of the lid, and the annular member is sandwiched between the pressing plate and the current collector plate, thereby fixing the electrode rod to the lid.
- the base of the electrode rod is provided with a flange that is larger than the diameter of the electrode rod and thicker than the thickness of the lid, so that the flange receives the pressing plate.
- the annular member is characterized in that the whole or a part is formed of a thick rubber plate from the flange portion.
- a hole is formed in the lid body, an annular member is provided so as to surround the hole, a current collecting plate is disposed on one side of the lid body, and the current collecting plate force
- the extended electrode rod is protruded from the hole
- a pressing plate is arranged on the other side of the lid, and the annular member is sandwiched between the pressing plate and the current collector plate, thereby fixing the electrode rod to the lid.
- the annular member is constituted by a resin plate, and an inclined surface for pressing an O-ring or liquid packing set at the base of the electrode rod is provided at the tip of the resin plate.
- the invention according to claim 3 is a lid body in which a storage element and a current collector plate are accommodated in a cylinder body, and an opening of the cylinder body is provided with an electrode rod through hole whose edge is surrounded by a ring-shaped annular member. Storage battery closed at
- the disc seal member is composed of a three-layer structure in which PET films are laminated on the upper and lower surfaces of a rubber sheet and integrated together,
- One PET film is heat-sealed to a metal current collector, and the other PET film is heat-sealed to a resin-made annular member so that an airtight action can be exerted. To do.
- a lid is constituted by a resin-coated metal plate obtained by laminating a PET film on a metal plate, a hole is formed in the lid, and a rubber annular member is formed so as to surround the hole.
- a rubber annular member is formed so as to surround the hole.
- a step of forming a hole in the resin-coated metal plate, a step of forming an adhesive layer by applying at least an imide-based adhesive on the PET film surrounding the hole, and drying the adhesive layer; and the adhesive layer A step of setting a resin-coated metal plate containing a resin into a molding die, a step of injecting a rubber-based molten material into the molding die to form a rubber annular member, and removing the molding die to obtain a lid It is set as the manufacturing method of the cover body of a storage battery characterized by consisting of a process.
- the invention according to claim 5 is characterized in that the insulator is an insulator for attaching an electrode used in a battery container, and is made of polyethylene terephthalate resin.
- the invention according to claim 6 is a battery container in which a lid member formed with a polyester resin-coated aluminum plate is double-wrapped and attached to an opening of a can body part.
- Polyester resin having a dicarboxylic acid component mainly composed of terephthalic acid and a glycol component, and a glass transition temperature in the range of 30 to 110 ° C.
- the invention according to claim 7 is a battery container in which a lid member formed with a polyester resin-coated aluminum plate is double-tightened and attached to an opening of a can body part. Therefore, polyethylene for electrode attachment is provided in the through-hole provided by drilling the central part of the lid member through an adhesive comprising the following (A) resin and (B) hardener. It is characterized in that an insulator made of terephthalate resin is attached.
- (A) consists of a dicarboxylic acid component and a glycol component of terephthalic acid 80-100 mole 0/0, the range glass transition temperature of 30 to 110 ° C, poly esters having a number average molecular weight of 8000 to 30000 ⁇
- the invention according to claim 8 is the battery container according to claim 6 or 7, wherein the adhesive has a weight ratio of (A) :( B) in the range of 90:10 to 99: 1.
- the annular member is formed of a rubber plate. Since the rubber plate is rich in elasticity and exhibits sealing properties, the sealing performance at the electrode rod penetrating portion can be maintained over a long period of time, and the life of the storage battery can be extended.
- the annular member is constituted by a resin plate, and an inclined surface for pressing an O-ring or a liquid packing set at the base of the electrode rod is provided at the tip of the resin plate.
- the resin board itself is poor in elasticity and sealability cannot be expected.
- the inclined surface provided at the tip of the resin plate presses the O-ring or liquid packing, the inclined surface and the O-ring or liquid knocking can maintain the sealing performance at the electrode rod penetrating portion for a long time. Can extend the lifespan.
- the disc seal member is sandwiched between the resin-made annular member on the lid side and the current collector plate therebelow. Since the disk seal member has a large area, the area of the seal surface can be dramatically increased as compared to the O-ring.
- the displacement of the electrode rod in the direction perpendicular to the axis can be followed by shear deformation (displacement) of the rubber sheet.
- a technique for bonding a rubber material to a resin is known!
- the landing component may dissolve and dissolve in the organic solvent used in the electrolytic solution, causing leakage of the electrolytic solution or poor capacitor characteristics. If such a problem can be solved by the present invention, an effect can be obtained.
- an imide-based adhesive is employed.
- This imide-based adhesive has high adhesive strength to PET film and high adhesive strength to rubber annular members. As a result, the rubber annular member can be firmly bonded to the PET film.
- a rubber annular member equivalent to an O-ring can be attached to the lid in one piece, so there is no need to worry about forgetting to attach or losing the rubber annular member.
- the insulator is made of polyethylene terephthalate resin, it is excellent for an electrolytic solution mainly composed of a highly corrosive propylene carbonate salt as a battery content. Corrosion resistance and leakage resistance of contents are improved.
- the battery container of the present invention uses an insulator made of polyethylene terephthalate resin, and bonds the insulator to a lid member made of a polyester resin-coated aluminum sheet using an adhesive having a specific composition.
- the insulator can be firmly bonded to the through hole of the lid member, and the leakage resistance of the battery contents is excellent.
- FIG. 1 is a perspective view of a storage battery according to the present invention.
- FIG. 2 is a cross-sectional view of a main part of a storage battery according to the present invention.
- FIG. 3 is an exploded view of the main part of the storage battery according to the present invention.
- FIG. 4 is an operational diagram of FIG.
- FIG. 5 is another embodiment of FIG.
- FIG. 6 is an operational diagram of FIG.
- FIG. 7 is a diagram showing still another embodiment of FIG.
- FIG. 8 is an operational diagram of FIG.
- FIG. 9 is a plan view of a storage battery lid according to the present invention.
- FIG. 10 is a diagram for explaining a basic configuration of a conventional technique.
- FIG. 11 is a cross-sectional view of main parts of a storage battery according to the present invention.
- FIG. 12 is an exploded view of the main part of the storage battery according to the present invention.
- FIG. 13 is an operational diagram of FIG.
- FIG. 14 is a structural diagram of a conventional technique using a 0-ring.
- FIG. 16 is a cross-sectional view of a sample according to the present invention.
- Fig. 17 is a measurement principle diagram of peel strength.
- FIG. 18 is a graph of measurement results.
- FIG. 19 is a manufacturing flow diagram of a lid according to the present invention.
- FIG. 20 is a cross-sectional view of the main part of the completed lid.
- FIG. 22 shows a plan view (a) of the insulator of the present invention and an AA sectional view (b) thereof. Explanation of symbols
- FIG. 1 is a perspective view of a storage battery according to the present invention.
- a storage battery 10 has a corrugated (corrugated) cylinder 11 with an upper opening closed by a lid 12 and a lower opening of the cylinder 11 closed by a bottom lid 13. This is a closed case.
- the bottom cover 13 may be formed simultaneously with the cylinder 11 by a deep drawing method.
- 14 is an electrode rod, and 15 is an annular member.
- the lid 12 (30) will be described with reference to FIG. 9.
- a hole 16 is formed in the center, and a plurality of through holes 131 (37) are formed so as to surround the hole 16. These through holes 131 (37) were opened to enhance the fixing performance of the annular member 15.
- FIG. 2 is a cross-sectional view of the main part of the storage battery according to the present invention.
- a hole 16 is formed in the lid 12 and an annular member 15 is provided so as to surround the hole 16, and one side of the lid 12 (
- a current collecting plate 17 is arranged on the lower side in the figure, an electrode rod 14 extending from the current collecting plate 17 is projected from the hole 16, and a pressing plate 18 is arranged on the other side of the lid 12 (upper in the figure).
- a structure in which the electrode rod 14 is fixed to the lid 12 by sandwiching the annular member 15 between the pressing plate 18 and the current collecting plate 17 is shown.
- the pressing plate 18 is a metal plate corresponding to a washer, and presses the annular member 15 by screwing a nut 22 into a screw portion 21 provided on the electrode rod 14.
- the current collector plate 17 is a metal plate that plays a role of collecting electrical energy stored in the power storage element 19.
- FIG. 3 is an exploded view of the main part of the storage battery according to the present invention.
- the base of the electrode rod 14 is larger in diameter than the diameter d of the electrode pad 14 and thicker than the thickness t of the lid 12.
- a flange portion 23 having a thickness T is provided, and the pressing plate 18 is received by the flange portion 23.
- the annular member 15 has a so-called kokeshi-shaped cross section composed of a neck portion 25 slightly thicker than the thickness T of the flange portion 23 and a head portion 26 sufficiently thicker than the thickness T of the flange portion 23, and is elastic. Consists of rich rubber.
- the thickness of the collar portion 23 is T
- the thickness of the neck portion 25 is Tl
- the thickness of the head portion 26 is ⁇ 2
- FIG. 4 is an operation diagram of FIG. 3, in which the electrode rod 14 is also passed through the annular member 15 by the downward force, the pressing member 18 is placed, and the screw portion 21 is hung with the nut 22 and screwed. This screwing operation is performed until the pressing member 18 stops on the flange 23.
- the neck portion 25 is slightly compressed and exhibits a sealing property.
- the head 26 is greatly compressed, and the primary seal portion is constituted by the point P1, the secondary seal portion is constituted by the point ⁇ 2, and the third seal portion is constituted by the point ⁇ 3.
- the annular member 15 is composed of the neck portion 25 and the head portion 26 as in the embodiment, and the entire thickness is made uniform or a thick portion is provided in the middle of the neck portion 25.
- the scalloped annular member 15 is entirely or partially thicker than the flange 23 and is a rubber plate.
- FIG. 5 is a diagram showing another embodiment of FIG. 3, in which a hole 16 is formed in the lid 12 and an annular member 15 is provided so as to surround the hole 16, and current is collected on one side (downward in the figure) of the lid 12.
- a plate 17 is arranged, the electrode rod 14 extending from the current collecting plate 17 can be protruded from the hole 16, and the pressing plate 18 is arranged on the other side of the lid 12 (upward in the figure).
- the annular member 15 is formed of a resin plate, and an inclined surface 28 that presses an O-ring 27 set on the base of the electrode rod 14 is provided at the tip of the resin plate.
- said resin board is hard resin, and although intensity
- FIG. 6 is an operation diagram of FIG. 5.
- the electrode rod 14 is also passed through the annular member 15 by the downward force, the pressing member 18 is placed, and the screw portion 21 is hung with the nut 22 and screwed. This screwing operation is performed until the pressing member 18 comes into contact with the annular member 15 and stops.
- the O-ring 27 is crushed at the slope 28 to fill the corner where the electrode rod 14 and the current collector plate 17 intersect. Even if the annular member 15 moves relative to the right side of the figure due to aging, etc., the O-ring 27 fills the corner while returning to the original cross section. Therefore, there is no concern that the sealing performance will deteriorate even if the annular member 15 moves slightly! /.
- FIG. 7 is a view showing another embodiment of FIG. 3, in which a hole 16 is formed in the lid 12 and this hole 16 is formed.
- An annular member 15 is provided so as to enclose, and a current collector plate 17 is disposed on one side (lower in the figure) of the lid 12, and the electrode rod 14 extending from the current collector plate 17 can be projected from the hole 16, and the lid A pressing plate 18 is arranged on the other side of the body 12 (upward in the figure).
- the annular member 15 is formed of a resin plate, and a slope 28 that presses a coating material 29 made of a composition containing a PPT-based resin set at the base of the electrode rod 14 at the tip of the resin plate. It is characterized by having established.
- this resin board is also a hard resin and has high strength but poor stretchability.
- FIG. 8 is an operation diagram of FIG. 7.
- the electrode rod 14 is also passed through the annular member 15 by the downward force, the pressing member 18 is placed, and the screw portion 21 is hung by the nut 22 and screwed. This screwing operation is performed until the pressing member 18 comes into contact with the annular member 15 and stops.
- the paint 29 is crushed by the slope 28 and fills the corner where the electrode rod 14 and the current collector plate 17 intersect. Even if the annular member 15 moves relative to the right in the figure due to aging, etc., the paint 29 swells and fills the corners. Therefore, there is no concern that the sealing performance will deteriorate even if the annular member 15 moves slightly.
- FIG. 11 is a cross-sectional view of the main part of the storage battery according to the present invention.
- the storage element 19 and the current collector plate 17 are accommodated in the cylinder 11, and the opening of the cylinder 11 is surrounded by the annular member 15 made of resin.
- the storage battery 10 is closed by a lid 12 having an electrode rod through-hole 16 (hereinafter abbreviated as “hole 16”), and is closed between the current collector plate 17 and the resin annular member 15 when the lid 12 is closed.
- the upper structure of the storage battery 10 is shown in which the sealing member 223 is interposed and the lid 12 and the current collector plate 17 are arranged so as to be parallel and closed to keep the electrode penetration portion airtight.
- the pressing plate 18 is a metal plate corresponding to a washer, and presses the annular member 15 by screwing a nut 22 into a screw portion 21 provided on the electrode rod 14.
- the current collector plate 17 is a metal plate that plays a role of collecting electrical energy stored in the power storage element 19.
- FIG. 12 is a cross-sectional view of the main part of the storage battery according to the present invention.
- a hole 16 is formed in the lid body 12 and a resin annular member 15 is provided so as to surround the hole 16.
- a current collecting plate 17 is disposed on the electrode plate 14 so that the electrode rod 14 extending from the current collecting plate 17 can project from the hole 16, and a pressing plate 18 is disposed on the other side of the lid 12 (upward in the drawing).
- a disc seal member 223 is interposed between the resin annular member 15 and the current collector plate 17.
- the disk seal member 223 is a three-layer structure in which PET films 225 and 226 are laminated and integrated on the upper and lower surfaces of the rubber sheet 224.
- the material of the rubber sheet 224 is preferably EPDM (ethylene propylene diene rubber).
- the thickness of the rubber sheet 224 and the PET (polyethylene terephthalate) films 225 and 226 is 30 to: LOO / z m, and the disc sheet material 223 has three layers of 100 to 200 m (0.1.
- the PET film 225 can obtain high bonding strength by a heat-sealing method having good compatibility with the resin annular member 15 and the metal current collector plate 17.
- the PET adhesives 27 and 27 are preferably a composition containing PPT (polypropylene terephthalate) resin.
- FIG. 13 is an operation diagram of FIG. 12, and the electrode rod 14 is also passed through the annular member 15 by the downward force, the pressing member 18 is placed, and the screw portion 21 is hung with the nut 22 and screwed.
- the disk seal member 223 is appropriately compressed by the resin annular member 15 and the current collector plate 17.
- the PET film 225 can be heat-sealed to the resin annular member 15, and the PET film 226 can be heat-sealed to the current collector plate 17. In the figure, it is shown for convenience.
- the disc seal member 223 Since the disc seal member 223 has a sufficiently large width W, even if the lower surface of the resin annular member 15 and the upper surface of the current collector plate 17 are damaged, the disc seal member 223 covers the scratches and provides a sealing performance. maintain. Therefore, the disc seal member 223 can maintain a sealing performance with a seal surface area that is significantly larger than a conventional O-ring over a long period of time.
- the rubber sheet 224 is an elastic member, the thickness changes, that is, the electrode rod 1
- the rubber sheet 224 has a certain thickness, it elastically deforms in the direction perpendicular to the axis of the electrode rod 14 and absorbs the relative displacement between the resin annular member 15, the current collector plate 17, and the electrode rod 14.
- FIG. 19 is a flowchart for manufacturing the lid according to the present invention.
- (a) is an explanatory diagram of the process of making a hole in a resin-coated metal plate.
- (b) is an explanatory diagram of the adhesive layer forming process.
- An imide-based adhesive is applied on the PET film 32, 32 surrounding the hole 16, and 80 ° C, 10 minutes.
- the adhesive layers 33 and 33 are formed by drying under the above conditions.
- (C) is an explanatory view of the injection process, and the main part of the resin-coated metal plate 30 including the adhesive layers 33 and 33 is set in the molding die 34. Then, a rubber-based molten material is injected from the injection cylinder 35 into the cavity 36.
- FIG. 20 is a cross-sectional view of the main part of the completed lid, and shows that the rubber annular member 15 having a kokeshi cross-sectional shape can be integrally formed on the lid 12 with the molding die removed.
- the rubber annular member 15 is firmly bonded to the PET films 32 and 32 by the action of the adhesive layers 33 and 33.
- the rubber annular member 15 is firmly bonded to the lid 12 by the bonding action by the adhesive layers 33 and 33 and the mechanical bonding action by the through hole 37, and is in use. There is no worry of coming off the lid 12.
- FIGS. 15 to 18 are related to the manufacturing method of FIGS. (Example A: Same as Fig. 19 to Fig. 20) and other methods to adhere rubber sheet on PET film (Comparative Examples A to C) ) With respect to the peel strength and the results.
- FIG. 15 is a cross-sectional view of a resin-coated metal plate.
- a plurality of resin-coated metal plates 30 in which a PET (polyethylene terephthalate) film 32 is laminated on a metal plate 31 are prepared.
- the metal plate 31 was a 0.5 mm ⁇ 20 mm ⁇ 150 mm aluminum (A3004-HI 2) plate.
- the thickness of the PET film 32 was 30 m.
- L is 150 mm and the dimension in the front and back direction of the drawing is 2 Omm.
- FIG. 16 is a cross-sectional view of a sample according to the present invention.
- the sample for Comparative Example A was prepared by placing an EPDM (ethylene propylene rubber) sheet 38 (hereinafter referred to as a rubber sheet 38) directly on the PET film 32 and pressing it for 10 minutes at 180 ° C. I got it.
- EPDM ethylene propylene rubber
- PPT resin is a PET fusing agent that has been used conventionally.
- a rubber sheet 38 was placed on the PPT resin layer 39 and pressed for 10 minutes at 180 ° C. to obtain a sample.
- Example A The sample for Example A was obtained by applying an imide-based adhesive (equivalent to CHEMLOK253X manufactured by Lord, USA) to PET film 32 and drying it at 80 ° C. for 10 minutes. Agent layer 33 was formed. Next, a rubber sheet 38 was placed on the adhesive layer 33 and pressed for 10 minutes at 180 ° C. to obtain a sample.
- an imide-based adhesive epoxy-based adhesive
- Fig. 17 is a measurement principle diagram of the peel strength.
- F (N) is defined as the peel strength.
- FIG. 18 is a graph of the measurement results.
- Comparative Example A see FIG. 16 (a)
- the peel strength is 0.1 N
- Comparative Example B see FIG. 16 (b)
- the peel strength was 3.2N, and peeling occurred between the rubber sheet 38 and the PPT resin layer 39 shown in FIG. 16 (b).
- FIG. 21 is a perspective view showing an exploded configuration diagram of the battery container of the present invention.
- the lid member 1 formed with a polyester resin-coated aluminum plate is attached to the flange 2f by double-winding it onto the opening flange 2f of the can body 2.
- a through hole 3 is provided in the center of the lid member 1 and an insulating body 4 made of polyethylene terephthalate resin for attaching the electrode 5a is attached via an adhesive.
- FIG. 21 shows an embodiment in which openings are provided at both ends of the can body 2, and an example in which the electrode 5 b and the insulator 4 are also provided in the lower lid is shown.
- the lid member is composed of an aluminum plate as a base material, a surface treatment layer, and a resin film.
- the aluminum plate used as the base material for the lid member is a variety of aluminum materials, such as those described in JIS4000! / Speaking alloy strengths in the 3000s, 5000s, and 6000s. Preferably used.
- the thickness of the aluminum plate is generally in the range of 0.1 to 1. Omm from the viewpoint of strength and formability. It should be inside.
- an aluminum plate can be cold-rolled, chromium phosphate treatment, and other organic / inorganic surface treatment can be performed by dipping or spraying.
- a coating type surface treatment can also be used.
- the amount of chromium is preferably 5 to 40 mg / m 2 as the total chromium from the viewpoint of processing adhesion of the resin film to be laminated. A range of 30 mgZm 2 is more preferred.
- the total chromium content should be 8 mgZm 2 or less when the chromic phosphate treatment is performed on the non-laminate side.
- the formation of the chromic acid chromic acid-treated film is carried out by a method known per se, for example, after degreasing and slightly etching an aluminum plate with caustic soda.
- F 0.65g / L
- a resin film is formed on a surface-treated aluminum plate.
- the resin film include a polyester film.
- the polyester film a copolymerized polyethylene terephthalate biaxially stretched film having a melting point of 210 to 252 ° C mainly composed of ethylene terephthalate units and containing a small amount of other ester units.
- This resin film is formed by forming a copolymer polyester mainly composed of ethylene terephthalate units into a film by the T-die method or the inflation film forming method, and stretching the film sequentially or simultaneously by biaxial stretching at the stretching temperature. The latter film is manufactured by heat setting and then laminated to an aluminum plate.
- the polyethylene terephthalate film suitably used as the polyester film of the present invention comprises 70 mol% or more, particularly 75 mol% or more of the dibasic acid component in the copolyester, and the diol component is 70 mol 0 / 0 or more, made in particular 75 mole 0/0 or ethylene glycol, 1-3 dibasic acid component and Z or diol component
- 0 mol% particularly 5 to 25 mol%, comprises dibasic acid components other than terephthalic acid and diol components other than Z or ethylene glycol.
- dibasic acids other than terephthalic acid examples include aromatic dicarboxylic acids such as isophthalic acid, phthalic acid, and naphthalenedicarboxylic acid: alicyclic dicarboxylic acids such as sirotahexanedicarboxylic acid; succinic acid, adipic acid, sebacic acid, dodecane Aliphatic dicarboxylic acids such as dionic acid:
- aromatic dicarboxylic acids such as isophthalic acid, phthalic acid, and naphthalenedicarboxylic acid: alicyclic dicarboxylic acids such as sirotahexanedicarboxylic acid; succinic acid, adipic acid, sebacic acid, dodecane
- Aliphatic dicarboxylic acids such as dionic acid:
- One or a combination of two or more of diol components other than ethylene glycol include propylene glycol, 1,4 butanediol, diethylene glycol, 1,6-he
- the combination of these comonomers must be such that the melting point of the copolyester is in the above range.
- the copolyester used should have a molecular weight sufficient to form a film, for which the intrinsic viscosity (IV) is in the range from 0.55 to L 9 dlZg, in particular from 0.65 to L 4 dl / g. Some are desirable.
- copolyester film is biaxially stretched.
- the degree of biaxial stretching can also be confirmed by polarized fluorescence method, birefringence method, density gradient tube method density and the like.
- the thickness of the polyester film is desirably 8 to 50 / ⁇ ⁇ , particularly 12 to 40 / ⁇ ⁇ , in view of the balance between barrier properties and corrosion properties of the corrosive component.
- This biaxially stretched polyester film includes a film compounding agent known per se, such as amorphous silica.
- Anti-blocking agents such as carbon black (black), various antistatic agents, lubricants and the like can be blended in accordance with known formulations.
- the time taken for the film to be laminated to pass through the crystallization temperature range should be as short as possible, and preferably this temperature range should be passed within 10 seconds, especially within 5 seconds.
- this temperature range should be passed within 10 seconds, especially within 5 seconds.
- only the aluminum material is heated during lamination, and the resin-coated aluminum plate is forcibly cooled immediately after film lamination.
- direct contact with cold air or cold water, or pressure contact of a cooled cooling roller is used.
- the degree of crystal orientation can be relaxed by heating the film to a temperature close to the melting point and performing rapid cooling after lamination.
- An adhesive primer can be interposed between the polyester film and the aluminum plate, but those that exhibit excellent adhesion to both the aluminum plate and the film are preferred.
- Typical examples of primers with excellent adhesion and corrosion resistance include various phenols and formaldehyde force-derived resol-type phenol aldehyde resin and bisphenol-type epoxy resin.
- the adhesion primer layer is generally preferably provided with a thickness of 0.3 to 5 / ⁇ ⁇ .
- the lamination of the resin film to the aluminum plate is performed by press-bonding the biaxially stretched polyester film and the aluminum plate under the condition that only the surface layer portion in contact with the aluminum plate of the film is melted.
- the aluminum plate is preheated to a temperature equal to or higher than the melting point of the biaxially stretched polyester film, and the resin-coated aluminum plate is rapidly cooled immediately after lamination.
- the biaxially stretched polyester film and the aluminum plate can be laminated by pressure-bonding via an adhesive primer layer provided on any of them.
- the lid member is manufactured as follows. First, a resin-coated aluminum plate is stamped into a rectangular plate with a press and molded into a desired lid shape, and a concave portion and a through hole are formed in the central portion using a mold to form a lid member.
- FIG. 22 shows a plan view of the insulator of the present invention (FIG. 22 (a)) and an AA sectional view (FIG. 22 (b)).
- the insulator 4 of the present invention includes a ring 4a having a donut shape, a hollow portion 4b penetrating in the thickness direction for mounting the electrode 5a, and an annular recess 4c for fitting the inner edge of the through hole 3 provided in the lid member.
- the annular recess 4c is provided along the inner diameter at a substantially central portion in the thickness direction of the inner diameter portion of the ring 4a, and a groove is formed in the outer diameter direction of the ring 4a! /
- the insulator of the present invention is made of polyethylene terephthalate resin.
- the reason for this is that it has excellent corrosion resistance against electrolytes and the like mainly composed of highly corrosive propylene carbonate salt enclosed as the battery contents.
- Table 1 shows the results of an investigation of the corrosion resistance of the insulator of the present invention.
- polybutylene terephthalate resin can be used alone or in a mixture with polyethylene terephthalate resin.
- the thickness of the insulator of the present invention is not particularly limited as long as it is thicker than the thickness of the cover member material, but a thickness of 0.3 to 3. Omm is preferable. Since the outer diameter and inner diameter of the ring 4a are also determined by the size of the lid member and the size of the electrode, they are not particularly specified in the present invention.
- a lid member with a through-hole formed in advance is mounted in the mold, and melted polyethylene terephthalate resin is molded into the through-hole formed in the lid member by the insert injection method and mounted so as to be integrated with the lid member To do.
- an adhesive comprising at least one curing agent of (A) polyester resin + (B) phenol resin, amino resin, and polyisocyanate resin is used at least for the lid member.
- the dicarboxylic acid component comprises 20 to 0 mole 0/0 to terephthalic acid 80 to 100 mole 0/0 and dicarboxylic acids other than terephthalic acid, the glycol component made even propylene glycol 60 to 90 moles 0/0 and propylene glycol other glycols 40-10 mole 0/0 power as a, it is important to use a polyester ⁇ a number average molecular weight 8000 to 30000.
- the adhesive properties such as flexibility and whitening resistance are lowered.
- Carboxylic acid components other than terephthalic acid components include isophthalic acid, naphthalene dicarboxylic acid, ⁇ - ⁇ -oxyethoxybenzoic acid, biphenyl- 4,4'-dicarboxylic acid, diphenoxetane 4,4'-dicarboxylic acid, 5-sodium sulfoisophthalate Examples include acid, hexahydroterephthalic acid, adipic acid, sebacic acid, trimellitic acid, pyromellitic acid, etc. It is preferable from the viewpoint of elution resistance to use an aromatic dicarboxylic acid rather than an aliphatic carboxylic acid.
- alcohol components other than propylene glycol include 1,4 butanediol, ethylene glycolanol, neopentyl alcohol, 1,6 hexylene glycol, ethylene glycol, triethylene glycol, cyclohexane dimethanol, bisphenol. Lemons with ethylene oxide, glycerol, trimethylolpropane, pentaerythro Examples thereof include alcohol components such as srititol, dipentaerythritol, sorbitan and the like.
- the polyester resin preferably has a glass transition point (Tg) of 30 ° C or higher, particularly 50 to 110 ° C. If the glass transition point (Tg) is lower than the above range, the heat and humidity resistance may be lowered, and the barrier property against corrosive components may be lowered.
- Tg glass transition point
- the number average molecular weight is preferably in the range of 8000 to 30000, and particularly in the range of 10,000 to 20000.
- the polyester resin is produced by an ordinary curing method of high molecular weight polyester by an ester curing method or a direct esterification method.
- the phenol resin used as a hardener is a resin derived from phenols and formaldehyde or a functional derivative thereof.
- phenols mainly composed of carboxylic acid and Z or metataresole as phenols.
- phenols other than carboxylic acid and methatalesol but monocyclic monovalent phenols can be suitably used.
- trifunctionality such as m-ethylphenol, 3,5-xylenol, m-methoxyphenol, etc.
- Phenols o-cresol, p-cresol, p-tertbutylphenol, p-ethylphenol, 2,3-xylenol, 2,5-xylenol, p-tert-amylphenol, p-norphenol, p-phenol -Bifunctional phenols such as l-phenol and p-cyclohexylphenol; monofunctional phenols such as 2,4-xylenol and 2,6-xylenol.
- Amino resin used as a curing agent can be benzoguanamine resin and melamine resin in particular, and these may be used alone or in combination with benzoguanamine resin and melamine resin. You can also In addition, as amino fat, salt per 100 grams of fat A basic nitrogen atom concentration of 5 to 20 gram atoms, especially 8 to 17 gram atoms, and a concentration of methylol and etherified methylol groups in the range of 0.5 to 1.9 mmol, in particular 0.7 to 1.7 mmol. What is inside is convenient.
- polyisocyanates can be used as the polyisocyanate resin curing agent.
- Polyisocyanates that can be used include 2,4 tolylene diisocyanate, 2,6 tolylene diisocyanate, xylene 1,4-diisocyanate, xylene 1,3 diisocyanate, 4, 4'- Diphenylmethane diisocyanate, 2,4'-diphenylmethane diisocyanate, 4,4'-diphenyl ether diisocyanate, 2-trodiphenyl- 4,4'-diisocyanate, 2, 2 ' Diphenylpropane 4,4'-diisocyanate, 3,3'-dimethyldiphenylmethane 4,4'-diisocyanate, 4,4'-diphenylpropane diisocyanate, m phenolic diisocyanate , P Phenylene diisocyanate, naphthylene 1,4 diisocyanate, naphthylene
- urethane precursors such as prepolymers, modified products, derivatives, and mixtures comprising the above polyisocyanate and active hydrogen-containing compounds such as polyols and polyamines.
- Suitable curing agents are aliphatic and Z or cycloaliphatic isocyanates, particularly hexamethylene diisocyanate (HDI) and isophorone diisocyanate (IPDI) trimers (isocyanurates) are preferably used. be able to. In the present invention, it is preferable that the terminal NCO group of the isocyanate curing agent component is blocked.
- Blocking agents include phenolic compounds such as phenol, cresol, ethylphenol, and butylphenol, 2-hydroxypyridine, butylcerosolve, propylene glycolenomonomethinoreethenole, benzenoreanoreconole, methanolenole, ethanol, n —Alcohol compounds such as butanol, isobutanol, 2-ethylhexanol, etc., active methylene compounds such as dimethyl malonate, jetyl malonate, methyl acetoacetate, ethyl acetoacetate, acetylethylone, butyl mercaptan, dodecyl mercaptan, etc.
- phenolic compounds such as phenol, cresol, ethylphenol, and butylphenol, 2-hydroxypyridine, butylcerosolve, propylene glycolenomonomethinoreethenole, benzenoreanor
- Imidazole compounds such as urea, thiourea, and ethylene urea
- oxime compounds such as formamidoxime, acetoaldoxime, acetone oxime, methyl ethyl ketoxime, methyl isobutyl ketoxime, cyclohexanone oxime
- amine compounds such as diphenylamine, aldehyde, carbazole, ethylenimine and polyethyleneimine. These can be used alone or in admixture of two or more. Among these, methyl ethyl ketone oxime can be preferably used.
- the reaction between the blocking agent and the isocyanate hardener component can be performed, for example, at 20 to 200 ° C, using a known inert solvent or catalyst, if necessary.
- the blocking agent is preferably used in an amount of 0.7 to 1.5 times the molar amount of the terminal isocyanate group.
- the curing agent component (B) is less than the above range, an adhesive having excellent corrosion resistance cannot be formed, and when the curing agent component (B) is more than the above range, It is not possible to form an adhesive excellent in adhesiveness and workability.
- the adhesive used in the present invention preferably contains a solvent in an amount of 150 to 550 parts by weight per 100 parts by weight of the resin component. If the amount of solvent is less than the above range, Workability is reduced, and it becomes difficult to form an adhesive layer with excellent adhesion and corrosion resistance. On the other hand, when the amount of the solvent is larger than the above range, it is difficult to form an adhesive layer having a sufficient thickness, and a large amount of solvent is required, which is not economically preferable.
- any solvent known per se can be used as long as it can dissolve the above-described resin component.
- the following can be used preferably, but is not limited to this example.
- Isopropyl alcohol (IPA), isobutyl acetate, n-butanol, ethylene glycol monoisopropyl ether (GIP), methoxypropyl acetate, cyclohexanone, Solvesso 100, DBE (dibasic acid ester), diethylene glycol monobutyl ether (BDG), butyl diglycol acetate and other solvents with different boiling points are used.
- the adhesive used in the present invention can be applied to the resin-coated aluminum plate or the formed lid member by any means such as spray coating, brush coating, dip coating, and roller coating.
- the coating thickness can generally range from 1 to 20 m, in particular from 3 to 15 m, on a dry matter basis.
- the baking conditions after coating are generally appropriately selected from a temperature of 150 to 300 ° C and a baking time of 0.2 to 30 minutes.
- a stainless steel autoclave equipped with a stirrer, a thermometer and a partial reflux condenser is appropriately charged with raw materials such as polybasic acids, polybasic acid esters, polyhydric alcohols, and catalysts, and heated to increase the reaction temperature.
- Various polyester resins were synthesized by adjusting in the range of 210 to 250 ° C, reduced pressure of 2 mmHg or less, and reaction time of 3 to 6 hours.
- Table 2 shows the resin composition, number average molecular weight (Mn), and glass transition temperature (Tg) of the obtained polyester resin.
- the composition of the polyester resin was determined by NMR (nuclear magnetic resonance absorption).
- the number average molecular weight (Mn) of the polyester rosin was determined by GPC (gel 'permeation' chromatography). At this time, Kuroguchi Form was used as the developing solvent, and styrene-converted Mn was determined from a calibration curve using a styrene standard sample.
- the glass transition temperature (Tg) of the polyester resin was determined by differential thermal analysis (DSC) using a differential scanning calorimeter. The measurement conditions at this time were a heating rate of 10 ° CZ and a measurement temperature range of 20 to 300 ° C. [0099] [Adhesion test]
- the lid member on which the insulator is mounted by the insert injection method is fixed to the inspection jig in which the sealing portion is formed by fixing the curl portion of the lid member.
- the blending ratio of the polyester resin and the block IPDI trimer was 90:10, and the acid value titanium was compounded by 40 parts by weight per the resin.
- the resulting paint had a solids content of 42% by weight and # 4 Ford Cup viscosity of 63 seconds.
- the above polyester resin was coated on a polyester resin coated aluminum sheet having a thickness of 0.50 mm and baked at 200 ° C for 8 minutes. Thereafter, the resin-coated aluminum plate was punched out into a rectangular plate shape with a press and formed into a desired lid shape, and a concave portion and a through hole were formed in the central portion using a mold to obtain a lid member. Further, the lid member was mounted in the mold, and the polyethylene terephthalate resin melted in the through-hole formed in the lid member was molded by the insert injection method and mounted so as to be integrated with the lid member.
- Example 6 The results of Example 6 are shown together in Table 2 together with the polyester composition and the curing agent resin.
- Example 10 In the same manner as in Example 6, using the adhesives of Examples 7 to 12 whose detailed compositions are shown in Table 2, the evaluation was performed with the insulators adhered.
- Example 10 H blocked with MEK oxime DI (hexamethylene diisocyanate) trimer (isocyanurate form) was used as a curing agent.
- Examples 11 and 12 are examples in which another curing agent was used in place of the polyisocyanate curing agent.
- Example 12 a mixture of benzoguanamine resin (Mitsui Cytec Co., Ltd., Mycot 106) and melamine resin resin (Mitsui Cytec Co., Ltd., Cymel 325) whose compositions are shown in Table 2 was used as a curing agent.
- Table 2 shows the details of the results.
- the insulators using the adhesives of Examples 6 to 12 had good adhesion.
- Example 6 In the same manner as in Example 6, the adhesive performance of the comparative example 1 whose detailed composition is shown in Table 2 was adhered to an insulator and evaluated for adhesive performance.
- Comparative Example 1 the same polyester resin as in Example 6 was used, but this was a case where the curing agent of the present invention (B) was not used, resulting in poor adhesion.
- the storage battery of the present invention may be of any type as long as it is a rechargeable electrical product such as a secondary battery, electrolytic capacitor, or capacitor.
- the present invention is suitable for a storage battery in which an electrode rod also projects a lid force.
- the battery container of the present invention uses an insulator made of polyethylene terephthalate resin and adheres the insulator to a lid member made of a polyester resin-coated aluminum sheet using an adhesive having a specific composition.
- the insulator can be firmly bonded to the through-hole of the lid member, and the battery contents have excellent leakage resistance.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/919,627 US20090104521A1 (en) | 2005-05-17 | 2006-05-17 | Storage battery and insulating material and battery container using the same |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005144413A JP4764066B2 (ja) | 2005-05-17 | 2005-05-17 | 蓄電池の蓋体の製造方法 |
JP2005-144427 | 2005-05-17 | ||
JP2005144725A JP4764067B2 (ja) | 2005-05-17 | 2005-05-17 | 蓄電池 |
JP2005-144413 | 2005-05-17 | ||
JP2005144741A JP4769019B2 (ja) | 2005-05-17 | 2005-05-17 | 蓄電池 |
JP2005144427A JP4917760B2 (ja) | 2005-05-17 | 2005-05-17 | 電池用容器 |
JP2005-144725 | 2005-05-17 | ||
JP2005-144741 | 2005-05-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006123720A1 true WO2006123720A1 (ja) | 2006-11-23 |
Family
ID=37431293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/309866 WO2006123720A1 (ja) | 2005-05-17 | 2006-05-17 | 蓄電池と絶縁体及びそれを用いた電池用容器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090104521A1 (ja) |
KR (1) | KR100946744B1 (ja) |
CN (1) | CN101692501B (ja) |
WO (1) | WO2006123720A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090324975A1 (en) * | 2008-06-27 | 2009-12-31 | E. I. Du Pont De Nemours And Company | Metal-resin composite member and manufacturng method therefo |
DE102010030229A1 (de) * | 2010-06-17 | 2011-12-22 | Endress + Hauser Flowtec Ag | Verfahren zur Herstellung eines magnetisch-induktiven Durchflussmessgeräts |
EP3171424B1 (en) * | 2014-07-16 | 2021-08-25 | Toppan Printing Co., Ltd. | Casing material for electricity storage device and electricity storage device including same |
DE102018208138A1 (de) * | 2018-05-24 | 2019-11-28 | Robert Bosch Gmbh | Batteriezelle, insbesondere Lithium-Ionen-Batteriezelle, mit verbesserter elektrischer Isolation und Verfahren zum Herstellen einer Batteriezelle |
DE102018208141A1 (de) * | 2018-05-24 | 2019-11-28 | Robert Bosch Gmbh | Deckelbaugruppe für ein Gehäuse einer Batteriezelle |
CN115485930A (zh) | 2020-04-22 | 2022-12-16 | 加拿大蓝色解决方案有限公司 | 用于电池组的穿通式连接器、电池组及用于将至少一种气体引入电池组所用的可气密密封的壳体中的方法 |
DE102020214670A1 (de) | 2020-11-23 | 2022-05-25 | Robert Bosch Gesellschaft mit beschränkter Haftung | Deckelbaugruppe eines Batteriezellengehäuses, Verfahren zu deren Herstellung und Verwendung einer solchen |
DE102020214668A1 (de) | 2020-11-23 | 2022-05-25 | Robert Bosch Gesellschaft mit beschränkter Haftung | Deckelbaugruppe eines Batteriezellengehäuses, Verfahren zu deren Herstellung und Verwendung einer solchen |
Citations (7)
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JPH07226198A (ja) * | 1994-02-10 | 1995-08-22 | A T Battery:Kk | 封止電極端子構造 |
JPH0869783A (ja) * | 1994-08-30 | 1996-03-12 | Shin Kobe Electric Mach Co Ltd | 鉛蓄電池の極柱封口部 |
JP2000048803A (ja) * | 1998-07-27 | 2000-02-18 | Japan Storage Battery Co Ltd | 有機電解質電池 |
JP2000133221A (ja) * | 1998-10-30 | 2000-05-12 | Sanyo Electric Co Ltd | 筒型二次電池 |
JP2002175796A (ja) * | 2000-12-07 | 2002-06-21 | Sanyo Electric Co Ltd | 円筒型リチウム二次電池 |
JP2003115286A (ja) * | 2001-10-02 | 2003-04-18 | Nec Mobile Energy Kk | 密閉型電池 |
JP2004006117A (ja) * | 2002-05-31 | 2004-01-08 | Matsushita Electric Ind Co Ltd | 電池 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3340099A (en) * | 1965-01-15 | 1967-09-05 | Joseph M Sherfey | Bonded elastomeric seal for electrochemical cells |
US4804593A (en) * | 1986-05-20 | 1989-02-14 | Sanyo Electric Co., Ltd. | Enclosed cell having safety valve mechanism and fabricating method of the same |
US6132900A (en) * | 1996-12-25 | 2000-10-17 | Matsushita Electric Industrial Co., Ltd. | Method of production of non-aqueous electrolyte battery and seal plate thereof |
US6468692B1 (en) * | 1999-06-08 | 2002-10-22 | Ngk Insulators, Ltd. | Lithium secondary battery with sealed casing members |
US20040137321A1 (en) * | 2002-11-27 | 2004-07-15 | Jean-Francois Savaria | Casing for an energy storage device |
-
2006
- 2006-05-17 WO PCT/JP2006/309866 patent/WO2006123720A1/ja active Application Filing
- 2006-05-17 KR KR1020077029352A patent/KR100946744B1/ko not_active IP Right Cessation
- 2006-05-17 CN CN2009101504052A patent/CN101692501B/zh not_active Expired - Fee Related
- 2006-05-17 US US11/919,627 patent/US20090104521A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07226198A (ja) * | 1994-02-10 | 1995-08-22 | A T Battery:Kk | 封止電極端子構造 |
JPH0869783A (ja) * | 1994-08-30 | 1996-03-12 | Shin Kobe Electric Mach Co Ltd | 鉛蓄電池の極柱封口部 |
JP2000048803A (ja) * | 1998-07-27 | 2000-02-18 | Japan Storage Battery Co Ltd | 有機電解質電池 |
JP2000133221A (ja) * | 1998-10-30 | 2000-05-12 | Sanyo Electric Co Ltd | 筒型二次電池 |
JP2002175796A (ja) * | 2000-12-07 | 2002-06-21 | Sanyo Electric Co Ltd | 円筒型リチウム二次電池 |
JP2003115286A (ja) * | 2001-10-02 | 2003-04-18 | Nec Mobile Energy Kk | 密閉型電池 |
JP2004006117A (ja) * | 2002-05-31 | 2004-01-08 | Matsushita Electric Ind Co Ltd | 電池 |
Also Published As
Publication number | Publication date |
---|---|
CN101692501A (zh) | 2010-04-07 |
KR20080024132A (ko) | 2008-03-17 |
KR100946744B1 (ko) | 2010-03-11 |
US20090104521A1 (en) | 2009-04-23 |
CN101692501B (zh) | 2012-08-22 |
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