[go: up one dir, main page]

WO2018122964A1 - 超音波接合用工具 - Google Patents

超音波接合用工具 Download PDF

Info

Publication number
WO2018122964A1
WO2018122964A1 PCT/JP2016/088908 JP2016088908W WO2018122964A1 WO 2018122964 A1 WO2018122964 A1 WO 2018122964A1 JP 2016088908 W JP2016088908 W JP 2016088908W WO 2018122964 A1 WO2018122964 A1 WO 2018122964A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasonic bonding
tool according
convex portion
bonding tool
horn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/088908
Other languages
English (en)
French (fr)
Inventor
孝洋 中野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP2018558568A priority Critical patent/JP6625243B2/ja
Priority to US16/466,053 priority patent/US10625475B2/en
Priority to EP16924933.1A priority patent/EP3563963B1/en
Priority to KR1020197018855A priority patent/KR102186301B1/ko
Priority to CN201680091685.2A priority patent/CN110177644B/zh
Priority to PCT/JP2016/088908 priority patent/WO2018122964A1/ja
Publication of WO2018122964A1 publication Critical patent/WO2018122964A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/081—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations having a component of vibration not perpendicular to the welding surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8223—Peel tests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/341—Measures for intermixing the material of the joint interlayer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72324—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of inorganic materials not provided for in B29C66/72321 - B29C66/72322
    • B29C66/72325—Ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
    • B29C66/9516—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by controlling their vibration amplitude
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/959—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables
    • B29C66/9592—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables in explicit relation to another variable, e.g. X-Y diagrams
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/463—Separators, membranes or diaphragms characterised by their shape
    • H01M50/466—U-shaped, bag-shaped or folded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • B29C66/73115—Melting point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3468—Batteries, accumulators or fuel cells
    • 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

  • This invention relates to an improvement of an ultrasonic welding tool provided with a convex portion used on a horn side or an anvil side of an ultrasonic bonding apparatus for overlapping and bonding synthetic resin sheets.
  • Patent Document 1 discloses a sheet-like separator in which a heat-resistant layer made of ceramic particles is provided on one surface of a synthetic resin layer such as polypropylene as a separator between a positive electrode and a negative electrode in a laminated battery such as a lithium ion secondary battery. Is used, and one electrode, for example, a positive electrode is sandwiched between two separators, and the periphery of the separator is joined to form a so-called packaged electrode.
  • a synthetic resin layer such as polypropylene
  • the two separators sandwiching the positive electrode are arranged so that the respective heat-resistant layers face each other, and are heat-bonded at a plurality of locations on the periphery to form a bag-shaped separator.
  • a heat-resistant layer made of ceramic particles it becomes difficult to heat-seal the synthetic resin layer. Therefore, in Patent Document 1, a heat-resistant layer-less portion in which the heat-resistant material such as ceramics is zero or reduced at the periphery of the separator. The heat-resistant layer-less portions are heated and joined together.
  • a plurality of convex portions having a quadrangular pyramid shape having a flat top surface are arranged, and each convex portion has two side surfaces facing each other among four side surfaces.
  • the formed apex angle has an angle larger than 90 °.
  • FIG. 5 is a cross-sectional view taken along line AA in FIG. 4.
  • FIG. 1 shows a packed electrode as a workpiece.
  • the bag-packed electrode is formed by joining two sheet-like separators 1 at the periphery to form a bag shape, and sandwiching the positive electrode 2 therebetween, and a negative electrode (not shown) Are stacked alternately to form a so-called electrode stack.
  • the sheet-like separators 1 are each cut into a rectangle slightly larger than the positive electrode 2, and are joined to each other by ultrasonic joining at a plurality of peripheral portions, for example, a total of eight joint portions 3 as shown in the drawing.
  • a part of the current collector of the positive electrode 2 extends from one side of the separator 1 as a tab 2a connected to an electrode tab (not shown).
  • the separator 1 has a four-layer structure including a polypropylene layer 11, a polyethylene layer 12, a polypropylene layer 13, and a heat-resistant layer 14 in order from the outer surface when it is formed into a bag shape, as shown in a cross-sectional structure in FIG. 3.
  • a heat-resistant layer 14 in order from the outer surface when it is formed into a bag shape, as shown in a cross-sectional structure in FIG. 3.
  • the heat-resistant layer 14 is formed, for example, by spraying ceramic particles onto a synthetic resin layer together with a binder to form a porous ceramic layer.
  • the polypropylene layers 11 and 13 have a melting point of, for example, about 170 ° C., and a polyethylene layer 12 having a relatively lower melting point (for example, having a melting point of about 140 ° C.) is between the two polypropylene layers 11 and 13. It is the structure laminated
  • the separator 1 having such a four-layer structure When the separator 1 having such a four-layer structure is used as a bag-shaped separator, two sheet-shaped separators 1 are stacked with each heat-resistant layer 14 facing each other, as shown in FIG. Using the ultrasonic bonding device 21, the peripheral bonding portions 3 are bonded to each other.
  • the ultrasonic bonding apparatus 21 includes an anvil 22 that supports a workpiece (two separators 1) from below, and a horn 23 that is connected to a vibration device (not shown).
  • a joining tool or tip 24 is provided.
  • the horn 23 has a round bar shape extending in a substantially horizontal direction, and is vibrated by a vibration device (not shown) along its longitudinal direction (the left-right direction in the figure).
  • tip 24 used as the substantial process part which contacts the separator 1 is arrange
  • the horn 23 is pressurized with a predetermined load toward the anvil 22 by a pressure mechanism (not shown). As described above, the ultrasonic bonding apparatus 21 applies the ultrasonic vibration while pressing the two separators 1 between the horn 23 and the anvil 22 so that the thermoplastic synthetic resin layers of the two separators 1 are bonded to each other. Fuse.
  • the chip 24 has a rectangular plate shape corresponding to the size of the joint 3 as shown in FIG.
  • tip 24 can be formed and used as a component different from the horn 23 using tool steel etc., for example. Alternatively, it may be formed directly on the horn 23 as a part of the horn 23. In the example of FIG. 4, the vibration direction of the horn 23 is along the width direction of the chip 24 (direction perpendicular to the longitudinal direction of the chip 24).
  • the chip 24 includes a plurality of convex portions 31 regularly arranged. As shown in FIG. 6, each convex portion 31 has a quadrangular pyramid shape having four inclined side surfaces 31a, 31b, 31c, and 31d and a flat top surface 31e. In particular, in one embodiment, the four bases 32a, 32b, 32c, and 32d (see FIG. 6) form a regular quadrangular pyramid shape (strictly, a regular quadrangular pyramid shape whose top is cut off by the top surface 31e). Yes.
  • the plurality of convex portions 31 are regularly arranged at regular intervals so that the bases thereof are aligned in a straight line.
  • the plurality of convex portions 31 are arranged so that the V-shaped grooves 33 generated between two adjacent convex portions 31 are linearly continuous.
  • the bottom surface 33a of the V-shaped groove 33 (that is, the surface existing between the bottom sides of the two protrusions 31) is along one plane as a whole.
  • each convex portion 31 is inclined at an angle of 45 ° with respect to the longitudinal direction of the chip 24. Therefore, one diagonal direction of a quadrangle (square in the illustrated example) formed by the four bases 32 a, 32 b, 32 c, and 32 d is along the vibration direction of the horn 23.
  • FIG. 5 shows a cross section along the line AA in FIG.
  • a cross section is shown in which the chip 24 is cut along a plane that forms an angle of 45 ° with the longitudinal direction of the chip 24 and passes through the top surface 31e of the convex portion 31.
  • the apex angle ⁇ formed by two opposite side surfaces (in FIG. 5, the side surface 31a and the side surface 31c) of the four side surfaces 31a, 31b, 31c, 31d is larger than 90 °. It makes an angle.
  • the apex angle ⁇ is in the range of 110 ° to 130 °. In the illustrated example, the apex angle ⁇ is 120 °.
  • the convex portion 31 in the illustrated example is a regular quadrangular pyramid in which the four side surfaces 31a, 31b, 31c, and 31d have the same shape, the apex angle formed by the remaining two side surfaces 31b and 31d is also the apex angle ⁇ shown in FIG. Is equivalent to
  • the length of one side of the top surface 31e is 0.2 mm. That is, the convex part 31 of an Example has the magnitude
  • the convex portion 31 configured as described above is configured by grinding or cutting the V-shaped groove 33 described above on the surface of a plate-shaped base material made of tool steel or the like.
  • FIG. 7 schematically shows a state when the two sheet-like separators 1 serving as a workpiece are ultrasonically bonded between the chip 24 having the convex portion 31 as described above and the anvil 22.
  • the anvil 22 has a flat surface.
  • the convex portion 31 of the chip 24 bites into the two separators 1.
  • the heat-resistant layer 14 made of ceramic particles is broken, and the thermoplastic synthetic resin layers (polypropylene layer 11, polyethylene layer 12, polypropylene layer 13) of each separator 1 are reliably fused.
  • the molten thermoplastic synthetic resin (polyethylene or polypropylene) sticks to the side surfaces 31a, 31b, 31c, 31d of the convex part 31, and after the ultrasonic bonding is completed,
  • the horn 23 of the sonic bonding device 21 is raised, there is a concern that the workpiece is lifted while being attached to the horn 23.
  • the molten resin of the polyethylene layer 12 having a lower melting point than the outermost polypropylene layer 11 comes out on the surface of the polypropylene layer 11 and easily adheres to the side surfaces 31a, 31b, 31c, and 31d.
  • the tension is generally applied to the sheet-like separator 1 that is a workpiece at the time of ultrasonic bonding, when the tension is released as the ultrasonic bonding ends, the separator 1 that has been extended by the tension. However, it tends to be attached by the side surfaces 31a, 31b, 31c, 31d of the convex portion 31.
  • the apex angle ⁇ of the convex portion 31 is larger than 90 ° (that is, an obtuse angle) in the chip 24 of the above embodiment.
  • the work sticking to the part 31 is suppressed.
  • One reason for this is that, since the apex angle ⁇ is large, local biting into the thermoplastic synthetic resin layer is suppressed, and the molten resin of the polyethylene layer 12 having a low melting point is extruded onto the surface of the polypropylene layer 11. This is because the coming phenomenon is suppressed.
  • the side surfaces 31a, 31b, 31c, 31d of the convex portion 31 are 45 in the direction in which the separator 1 tends to shrink. Since it is inclined at an angle smaller than 0 °, the component force acting in the direction perpendicular to the side surfaces 31a, 31b, 31c, 31d is reduced, and the side surfaces 31a, 31b, 31c, 31d accompanying the contraction of the sheet separator 1 are reduced. Is less likely to stick.
  • the ultrasonic bonding apparatus 21 sequentially performs ultrasonic bonding of the bonding portion 3, the phenomenon that the workpiece adheres to the horn 23 is suppressed, and the working efficiency is improved.
  • the apex angle ⁇ is preferably within the range of 110 ° to 130 °.
  • the effect of suppressing sticking becomes weak.
  • it is larger than 130 ° the biting of the convex portion 31 into the separator 1 becomes weak, and the action of destroying the heat-resistant layer made of ceramic particles tends to be insufficient.
  • a non-adhesive coating may be applied to the surface of the convex portion 31 having the above-described shape.
  • shot blasting is performed on the surface of the convex portion 31 formed by machining such as grinding or cutting, and the edges serving as boundaries between the surfaces 31a to 31e are rounded and the surfaces 31a to 31e are polished.
  • Apply a non-stick coating As the non-adhesive coating, for example, a tungsten carbide coating or a chromium nitride coating is suitable.
  • a chromium nitride-based coating by physical vapor deposition provided commercially under the name “BALIINIT CROMA PLUS (registered trademark)” was applied in a thickness of 4 to 10 ⁇ m.
  • FIG. 8 shows a comparative example in which the apex angle ⁇ is 90 ° (no surface treatment), an example in which the apex angle ⁇ is 120 ° (no surface treatment), and a shot blast on the surface where the apex angle ⁇ is 120 °.
  • 5 is a graph summarizing the characteristics of the work sticking to the chip 24 in accordance with ultrasonic bonding for the second embodiment with a chromium nitride coating.
  • the horizontal axis represents the amplitude at the time of bonding processing by the ultrasonic bonding apparatus 21, and ultrasonic bonding is generally performed at a setting of about 50 to 70%.
  • the vertical axis indicates the force required to peel off the workpiece (separator 1) attached to the chip 24 by ultrasonic bonding from the chip 24, and this is evaluated as “sticking force”.
  • the convex portion of the comparative example has a regular quadrangular pyramid shape in which the size of the top surface is the same as the top surface 31e of the embodiment and the apex angle ⁇ is 90 °.
  • the present invention is not limited to the above embodiment, and various modifications can be made.
  • the separator 1 is not limited to the four-layer structure as described above, and the present invention is suitable for joining a separator 1 having a heat-resistant layer on one surface of one or more thermoplastic synthetic resin layers.
  • the present invention is suitable for joining the separators 1 to each other.
  • the present invention can be widely applied to the joining of general synthetic resin sheets that do not include a heat-resistant layer.
  • the vibration direction of the ultrasonic bonding apparatus 21 may be along the longitudinal direction of the rectangular chip 24.
  • the convex portion 31 has a regular quadrangular pyramid shape.
  • the quadrangle formed by the four bases is a rectangle or a rhombus.
  • it is necessary that the two apex angles formed by the two side surfaces facing each other among the four side surfaces are larger than 90 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cell Separators (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

超音波接合装置（２１）のホーン（２３）側に、複数個の凸部（３１）を規則的に形成したチップ（２４）が設けられている。個々の凸部（３１）は、４つの側面（３１ａ，３１ｂ，３１ｃ，３１ｄ）と、平坦な頂面（３１ｅ）と、を有する正四角錐形状をなす。互いに対向する２つの側面がなす頂角（α）は、９０°よりも大きく、例えば１２０°である。バッテリセルの２枚のセパレータ（１）を接合したときに、セパレータ（１）が凸部（３１）に貼り付く力が弱くなり、ホーン（２３）に付着していくことがない。

Description

超音波接合用工具
　この発明は、合成樹脂製シートを重ねて接合する超音波接合装置のホーン側もしくはアンビル側に用いられる凸部を備えた超音波接合用工具の改良に関する。
　特許文献１には、リチウムイオン二次電池のような積層型電池における正極・負極間のセパレータとして、ポリプロピレン等の合成樹脂層の一方の面にセラミックス粒子からなる耐熱層を設けたシート状のセパレータを用い、かつ２枚のセパレータの間に一方の電極例えば正極を挟んだ状態として、セパレータの周縁を接合することで、いわゆる袋詰電極を構成することが開示されている。
　正極を挟む２枚のセパレータは、各々の耐熱層が互いに対面するように配置され、周縁の複数箇所で加熱接合されて袋状のセパレータとなる。ここで、セラミックス粒子からなる耐熱層が介在すると、合成樹脂層の熱融着が困難となるので、特許文献１では、セパレータの周縁に、セラミックス等の耐熱材料をゼロあるいは少なくした耐熱層レス部を設け、この耐熱層レス部同士を加熱接合するようにしている。
　このように、耐熱層を有するセパレータ同士を加熱接合する方法では、耐熱層レス部の形成が必要となる。
　一方、積層型電池の製造において電極タブと正極・負極の集電体との接合に一般に用いられている超音波接合を上記のようなシート状セパレータの接合に適用したとすると、ホーンもしくはアンビルの少なくとも一方に設けられるローレット状の凸部に、溶融した樹脂材料が貼り付いてしまう、という問題がある。
国際公開第２０１４／０５８００１号 特開２００９－７８４５２号公報
　この発明に係る超音波接合用工具は、平坦な頂面を有する四角錐形状をなす凸部が複数配列されており、各々の凸部は、４つの側面の中の互いに対向する２つの側面がなす頂角が、９０°よりも大きい角度を有している。
　このように頂角が９０°よりも大きな四角錐形状とすることにより、ワークとなる合成樹脂製シートに食い込んだ凸部の側面と合成樹脂製シートとの貼り付きが抑制される。従って、超音波接合後にワークが工具に付着してしまう現象を抑制することができる。
ワークの一例として袋詰電極の袋状セパレータを示す平面図。 超音波接合装置の概略の構成を示す説明図。 セパレータの層構造を示す断面図。 一実施例の超音波接合用工具であるチップを示す斜視図。 図４のＡ－Ａ線に沿った断面図。 凸部の一つを示す斜視図。 凸部がセパレータを接合している状態を模式的に示した断面図。 実施例のチップおよび比較例のチップの貼付力の特性を示した特性図。
　以下、この発明の一実施例として、積層型バッテリセルの袋状セパレータの接合に用いる超音波接合用工具に適用した実施例を説明する。
　図１は、ワークとなる袋詰電極を示している。袋詰電極は、特許文献１に開示されているように、２枚のシート状セパレータ１を周縁で互いに接合して袋状とし、その中に正極２を挟み込んだものであり、図示せぬ負極と交互に積層することで、いわゆる電極積層体が構成される。
　シート状セパレータ１は、それぞれ正極２よりも僅かに大きな長方形に裁断され、周縁の複数箇所、例えば図示するような計８箇所の接合部３において超音波接合により互いに接合される。なお、正極２の集電体の一部が、図示せぬ電極タブと接続されるタブ２ａとしてセパレータ１の一辺から延びている。
　セパレータ１は、図３に断面構造を示すように、袋状としたときに外側となる面から順に、ポリプロピレン層１１、ポリエチレン層１２、ポリプロピレン層１３、耐熱層１４、を備えた４層構造を有している。つまり、熱可塑性合成樹脂層として多孔性の３つの層１１，１２，１３を有し、かつ一方の表面に、耐熱層１４を備えている。耐熱層１４は、例えば、セラミックス粒子をバインダとともに合成樹脂層の上に吹き付けて多孔性のセラミックス層としたものである。ポリプロピレン層１１，１３は、例えば１７０℃程度の融点を有し、これよりも相対的に融点が低いポリエチレン層１２（例えば１４０℃程度の融点を有する）が、２つのポリプロピレン層１１，１３の間に積層された構造となっている。
　このような４層構造を有するセパレータ１は、袋状セパレータとする際には、各々の耐熱層１４が互いに対面する形で２枚のシート状セパレータ１を重ね合わせ、図２に示すように、超音波接合装置２１を用いて、周縁の接合部３をそれぞれ接合する。
　超音波接合装置２１は、ワーク（２枚のセパレータ１）を下方から支持するアンビル２２と、図示せぬ加振装置に連結されたホーン２３と、を備え、ホーン２３の先端には、超音波接合用工具つまりチップ２４が設けられている。ホーン２３は、略水平方向に延びた丸棒状をなし、その長手方向（図の左右方向）に沿って図示せぬ加振装置により加振される。そして、ホーン２３の振動の腹となる位置に、セパレータ１と接触する実質的な加工部となるチップ２４が配置されている。ホーン２３は、図示せぬ加圧機構によりアンビル２２へ向かって所定の荷重でもって加圧される。このように、超音波接合装置２１は、２枚のセパレータ１をホーン２３とアンビル２２との間で加圧しながら超音波振動を与えることによって、２枚のセパレータ１の熱可塑性合成樹脂層を互いに融着させる。
　チップ２４は、図４に示すように、接合部３の大きさに対応した長方形の板状をなしている。チップ２４は、例えば、工具鋼等を用いてホーン２３とは別の部品として形成し、ホーン２３に取り付けて用いることができる。あるいは、ホーン２３の一部として、ホーン２３に直接に形成するようにしてもよい。図４の例では、ホーン２３の振動方向は、チップ２４の幅方向（チップ２４の長手方向と直交する方向）に沿ったものとなる。
　チップ２４は、規則的に配列された複数の凸部３１を備えている。各々の凸部３１は、図６にも示すように、４つの傾斜した側面３１ａ，３１ｂ，３１ｃ，３１ｄと、平坦な頂面３１ｅと、を有する四角錐形状をなしている。特に、一実施例においては、４つの底辺３２ａ，３２ｂ，３２ｃ，３２ｄ（図６参照）が正方形をなす正四角錐形状（厳密には頂部が頂面３１ｅによって切り落とされた正四角錐形状）をなしている。
　また、複数個の凸部３１は、各々の底辺が、直線状に整列するように一定間隔で規則的に配列されている。換言すれば、隣接する２つの凸部３１の間に生じるＶ字形溝３３が直線状に連続するように、複数個の凸部３１が配列されている。なお、Ｖ字形溝３３の底面３３ａ（つまり２つの凸部３１の底辺の間に存在する面）は、全体として一つの平面に沿っている。
　さらに、図示例では、各凸部３１の底辺３２ａ，３２ｂ，３２ｃ，３２ｄが、チップ２４の長手方向に対し４５°の角度でもって傾斜している。従って、４つの底辺３２ａ，３２ｂ，３２ｃ，３２ｄにより形成される四角形（図示例では正方形）の一つの対角方向が、ホーン２３の振動方向に沿っている。
　図５は、図４のＡ－Ａ線に沿った断面を示している。換言すれば、チップ２４の長手方向に対し４５°の角度をなしかつ凸部３１の頂面３１ｅを通る平面に沿って、チップ２４を切断した断面を示している。この図５に示すように、４つの側面３１ａ，３１ｂ，３１ｃ，３１ｄの中の互いに対向する２つの側面（図５では、側面３１ａと側面３１ｃ）がなす頂角αは、９０°よりも大きい角度をなしている。好ましくは、上記頂角αは、１１０°～１３０°の範囲内にある。図示例では、頂角αは、１２０°である。
　図示例の凸部３１は、４つの側面３１ａ，３１ｂ，３１ｃ，３１ｄが等しい形状をなす正四角錐であるため、残りの２つの側面３１ｂ，３１ｄがなす頂角も、図５に示す頂角αと等しいものとなる。
　なお、好ましい一実施例においては、頂面３１ｅの一つの辺の長さは、０．２ｍｍである。つまり、実施例の凸部３１は、頂面３１ｅが０．２ｍｍ×０．２ｍｍの大きさを有し、かつ互いに対向する２つの側面がなす頂角αが１２０°の角度を有している。
　上記のような構成の凸部３１は、例えば、工具鋼等からなる板状の母材の表面に、上述したＶ字形溝３３を研削加工ないし切削加工することにより構成される。
　図７は、上記のような凸部３１を備えたチップ２４とアンビル２２との間でワークとなる２枚のシート状セパレータ１を超音波接合しているときの状態を模式的に示している。図示例では、アンビル２２は平坦面をなしている。前述したように所定の荷重で加圧しながら超音波振動を与えることによって、チップ２４の凸部３１は、２枚のセパレータ１の中に食い込んでいく。これにより、セラミックス粒子からなる耐熱層１４が破壊され、各々のセパレータ１の熱可塑性合成樹脂層（ポリプロピレン層１１、ポリエチレン層１２、ポリプロピレン層１３）同士が確実に融着する。
　一方、凸部３１が熱可塑性合成樹脂層に食い込む結果、溶融した熱可塑性合成樹脂（ポリエチレンもしくはポリプロピレン）が凸部３１の側面３１ａ，３１ｂ，３１ｃ，３１ｄに貼り付き、超音波接合の完了後に超音波接合装置２１のホーン２３が上昇したときにホーン２３に付着したままワークが持ち上がる懸念がある。特に、最外層のポリプロピレン層１１に比較して融点の低いポリエチレン層１２の溶融樹脂がポリプロピレン層１１の表面に出てきて、側面３１ａ，３１ｂ，３１ｃ，３１ｄに付着しやすい。しかも、超音波接合の際には、一般に、ワークであるシート状セパレータ１に張力が付与されているため、超音波接合の終了に伴って張力が解放されると、張力によって延びていたセパレータ１が縮もうとして、凸部３１の側面３１ａ，３１ｂ，３１ｃ，３１ｄにより付着しやすくなる。
　このようなワークの貼り付きの問題に対し、上記実施例のチップ２４においては、凸部３１の頂角αが９０°よりも大きい角度（つまり鈍角）をなすことから、超音波接合後の凸部３１へのワークの貼り付きが抑制される。その理由は、一つには、頂角αが大きいことから、熱可塑性合成樹脂層への局部的な食い込みが抑制され、融点の低いポリエチレン層１２の溶融樹脂がポリプロピレン層１１の表面に押し出されてくる現象が抑制されるためである。さらには、超音波接合の終了に伴ってシート状セパレータ１の張力が解放されたときに、セパレータ１が縮もうとする方向に対して、凸部３１の側面３１ａ，３１ｂ，３１ｃ，３１ｄが４５°よりも小さい角度で傾斜しているため、側面３１ａ，３１ｂ，３１ｃ，３１ｄに垂直な方向に作用する分力が小さくなり、シート状セパレータ１の収縮に伴う側面３１ａ，３１ｂ，３１ｃ，３１ｄへの貼り付きが生じにくくなる。
　従って、超音波接合装置２１によって接合部３の超音波接合を順次行う際に、ワークがホーン２３に付着していく現象が抑制され、作業効率が向上する。
　頂角αとしては、上述したように、１１０°～１３０°の範囲内であることが好ましい。１１０°よりも小さいと、貼り付きを抑制する作用が弱くなる。１３０°よりも大きいと、セパレータ１への凸部３１の食い込みが弱くなり、セラミックス粒子からなる耐熱層を破壊する作用が不十分となり易い。
　チップ２４のさらに好ましい第２実施例としては、上述した形状の凸部３１の表面に、非粘着性コーティングを施すようにしてもよい。例えば、研削ないし切削等の機械加工により形成された凸部３１の表面に、ショットブラストを施して、各面３１ａ～３１ｅの境界となるエッジを丸めるとともに各面３１ａ～３１ｅを研磨した上で、非粘着性コーティングを施す。非粘着性コーティングとしては、例えば、タングステンカーバイド系のコーティングや、窒化クロム系のコーティングが好適である。一実施例では、「ＢＡＬＩＮＩＴ　ＣＲＯＭＡ　ＰＬＵＳ（登録商標）」という名称で商業的に提供されている物理蒸着法による窒化クロム系のコーティングを、４～１０μｍの膜厚で施した。
　このようにショットブラストおよび非粘着性コーティングを施すことにより、凸部３１へのワークの貼り付きがさらに低減する。
　図８は、頂角αが９０°である比較例（表面処理なし）と、頂角αが１２０°である実施例（表面処理なし）と、頂角αが１２０°でかつ表面にショットブラストと窒化クロム系のコーティングを施した第２実施例と、について、超音波接合に伴うチップ２４へのワークの貼り付きの特性をまとめたグラフである。横軸は、超音波接合装置２１による接合加工時の振幅であり、一般には、５０～７０％程度の設定で超音波接合が行われる。縦軸は、超音波接合によりチップ２４に貼り付いたワーク（セパレータ１）をチップ２４から剥がすのに必要な力を測定し、これを「貼付力」として評価したものである。なお、比較例の凸部は、頂面の大きさを実施例の頂面３１ｅと等しくし、頂角αを９０°とした正四角錐形状のものである。
　図８に示すように、頂角αが９０°である比較例に比較して、頂角αが１２０°である実施例では、貼付力が低減し、表面処理を施した第２実施例では、さらに貼付力が低減した。
　以上、この発明の一実施例を説明したが、この発明は上記実施例に限定されずに、種々の変更が可能である。例えば、セパレータ１として上記のような４層構造のものに限らず、１層もしくは複数層の熱可塑性合成樹脂層の一方の表面に耐熱層を備えたセパレータ１の接合に本発明は好適であり、袋詰電極の形成以外にもセパレータ１同士の接合に好適である。さらに、本発明は、耐熱層を具備しない一般的な合成樹脂製シートの接合においても、広く適用することが可能である。
　また、上記実施例では、超音波接合装置２１のホーン２３側に設けられる工具つまりチップ２４に本発明を適用した例を説明したが、アンビル２２側に、同様の凸部３１を有する超音波接合用工具を設けることも可能である。さらに、ホーン２３側とアンビル２２側の双方に凸部３１を設けることも可能である。
　超音波接合装置２１の振動方向が、長方形をなすチップ２４の長手方向に沿ったものであってもよい。
　また、上記実施例では、凸部３１が正四角錐形状をなしているが、４つの底辺が構成する四角形が長方形あるいは菱形となるような四角錐形状とすることも可能である。この場合、４つの側面の中の互いに対向する２つの側面がなす２つの頂角が、いずれも９０°よりも大きい角度であることが必要である。

Claims (9)

  1. 　合成樹脂製シートを重ねて接合する超音波接合装置のホーン側もしくはアンビル側に用いられ、上記シートと接触する超音波接合用工具において、
    　この超音波接合用工具は、平坦な頂面を有する四角錐形状をなす凸部が複数配列されており、
    　各々の凸部は、４つの側面の中の互いに対向する２つの側面がなす頂角が、９０°よりも大きい角度である、
    　超音波接合用工具。
  2. 　上記頂角が１１０°～１３０°の範囲内にある、請求項１に記載の超音波接合用工具。
  3. 　上記頂角が１２０°である、請求項２に記載の超音波接合用工具。
  4. 　上記凸部は、平坦な頂面を有する正四角錐形状をなす、請求項１～３のいずれかに記載の超音波接合用工具。
  5. 　複数個の凸部は、隣接する２つの凸部の間に生じるＶ字形溝が直線状に連続するように配列されている、請求項１～４のいずれかに記載の超音波接合用工具。
  6. 　上記ホーン側に用いられ、
    　上記凸部の底辺により形成される四角形の一つの対角方向が、該ホーンの振動方向に沿っている、請求項１～５のいずれかに記載の超音波接合用工具。
  7. 　少なくとも上記凸部の表面に、非粘着性コーティングを備えている、請求項１～６のいずれかに記載の超音波接合用工具。
  8. 　ワークとして、一層もしくは複数層の熱可塑性合成樹脂層の一方の表面に耐熱層を備えた合成樹脂製シートを、耐熱層同士が対面するように２枚重ねて接合する、請求項１～７のいずれかに記載の超音波接合用工具。
  9. 　上記ワークが、バッテリセルの袋状セパレータである、請求項８に記載の超音波接合用工具。
PCT/JP2016/088908 2016-12-27 2016-12-27 超音波接合用工具 Ceased WO2018122964A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2018558568A JP6625243B2 (ja) 2016-12-27 2016-12-27 超音波接合用工具および超音波接合方法
US16/466,053 US10625475B2 (en) 2016-12-27 2016-12-27 Ultrasonic bonding tool and ultrasonic bonding method
EP16924933.1A EP3563963B1 (en) 2016-12-27 2016-12-27 Tool and method for ultrasonic bonding
KR1020197018855A KR102186301B1 (ko) 2016-12-27 2016-12-27 초음파 접합용 공구 및 초음파 접합 방법
CN201680091685.2A CN110177644B (zh) 2016-12-27 2016-12-27 超声波接合用工具和超声波接合方法
PCT/JP2016/088908 WO2018122964A1 (ja) 2016-12-27 2016-12-27 超音波接合用工具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/088908 WO2018122964A1 (ja) 2016-12-27 2016-12-27 超音波接合用工具

Publications (1)

Publication Number Publication Date
WO2018122964A1 true WO2018122964A1 (ja) 2018-07-05

Family

ID=62708034

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/088908 Ceased WO2018122964A1 (ja) 2016-12-27 2016-12-27 超音波接合用工具

Country Status (6)

Country Link
US (1) US10625475B2 (ja)
EP (1) EP3563963B1 (ja)
JP (1) JP6625243B2 (ja)
KR (1) KR102186301B1 (ja)
CN (1) CN110177644B (ja)
WO (1) WO2018122964A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020163848A (ja) * 2019-03-26 2020-10-08 精電舎電子工業株式会社 超音波溶着装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MA49132B1 (fr) * 2017-05-15 2021-09-30 Schunk Sonosystems Gmbh Dispositif de soudage de conducteurs électriques en forme de barres
CN111572031A (zh) * 2020-05-25 2020-08-25 数字扁担(浙江)科技有限公司 用于口罩耳带焊接的超声焊接头
KR102785345B1 (ko) * 2020-06-15 2025-03-25 주식회사 엘지에너지솔루션 이차전지 제조설비 및 그의 제조방법
CN114368175B (zh) * 2021-12-29 2024-03-26 江苏神力电源科技有限公司 一种启停电池隔板的瑕疵区域超声波修复装置及修复方法
KR102510839B1 (ko) * 2022-04-05 2023-03-17 윤석운 배터리 셀 접합용 앤빌 제조방법 및 그 방법에 의해 얻어진 앤빌
US20250033302A1 (en) * 2023-07-28 2025-01-30 Rohr, Inc. Horizontal ultrasonic welding thermoplastic material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001502622A (ja) * 1997-02-14 2001-02-27 レースマーク インターナショナル インコーポレイテッド フロアマットにヒールパッドを結合する道具類と方法
JP2009078452A (ja) 2007-09-26 2009-04-16 Shachihata Inc 印褥具
WO2013105361A1 (ja) * 2012-01-12 2013-07-18 日立マクセル株式会社 超音波溶接用チップ、超音波溶接機、及び電池の製造方法
JP2014058001A (ja) 2014-01-06 2014-04-03 Hitachi Ltd 圧延装置およびその制御方法
JP2014117752A (ja) * 2012-12-13 2014-06-30 Rinco Ultrasonics Usa Inc 台座を取り付けた超音波溶接装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6562166B2 (en) * 2001-05-11 2003-05-13 The Procter & Gamble Company Method of material property modification with ultrasonic energy
CN100522449C (zh) * 2005-01-28 2009-08-05 日产自动车株式会社 超声波接合装置及接合构造体
JP4792945B2 (ja) * 2005-01-28 2011-10-12 日産自動車株式会社 超音波接合装置および接合構造体
JP2008000638A (ja) 2006-06-20 2008-01-10 Nec Tokin Corp 超音波ホーン
US9487317B2 (en) * 2010-10-26 2016-11-08 Rinco Ultrasonics USA, Inc. Sonotrode and anvil energy director grids for narrow/complex ultrasonic welds of improved durability
US9278481B2 (en) 2010-10-26 2016-03-08 Rinco Ultrasononics USA, INC. Sonotrode and anvil energy director grids for narrow/complex ultrasonic welds of improved durability
US8689850B2 (en) * 2010-10-26 2014-04-08 Rinco Ultrasonics, Inc. Pedestal mounted ultrasonic welding device
JP2013105361A (ja) 2011-11-15 2013-05-30 Seiko Epson Corp プリンタードライバー、プリンタードライバーのインストーラー、および印刷データの処理方法
CN102513686A (zh) * 2011-12-02 2012-06-27 苏州冠硕新能源有限公司 超声波焊头、具有超声波焊头的超声波焊接设备及使用该超声波焊接设备焊接电池极耳的方法
CN202571587U (zh) 2012-02-16 2012-12-05 东莞新能源电子科技有限公司 一种超声波焊接机的下模
JP2016006718A (ja) 2012-10-12 2016-01-14 日産自動車株式会社 袋詰電極、積層型電気デバイス、および袋詰電極の製造方法
JP6427909B2 (ja) 2014-03-24 2018-11-28 日産自動車株式会社 電気デバイスのセパレータ接合装置
KR101906076B1 (ko) 2014-07-03 2018-10-08 닛산 지도우샤 가부시키가이샤 복합재의 접합 방법 및 복합재의 접합 장치
TWI523718B (zh) 2014-08-21 2016-03-01 周振嘉 應用於超音波加工的工具單元
CN205200793U (zh) 2015-12-08 2016-05-04 谢慧敏 一种具有阶梯型工具面的超声焊头
JP7022890B2 (ja) * 2018-01-24 2022-02-21 パナソニックＩｐマネジメント株式会社 接合構造体および接合方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001502622A (ja) * 1997-02-14 2001-02-27 レースマーク インターナショナル インコーポレイテッド フロアマットにヒールパッドを結合する道具類と方法
JP2009078452A (ja) 2007-09-26 2009-04-16 Shachihata Inc 印褥具
WO2013105361A1 (ja) * 2012-01-12 2013-07-18 日立マクセル株式会社 超音波溶接用チップ、超音波溶接機、及び電池の製造方法
JP2014117752A (ja) * 2012-12-13 2014-06-30 Rinco Ultrasonics Usa Inc 台座を取り付けた超音波溶接装置
JP2014058001A (ja) 2014-01-06 2014-04-03 Hitachi Ltd 圧延装置およびその制御方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3563963A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020163848A (ja) * 2019-03-26 2020-10-08 精電舎電子工業株式会社 超音波溶着装置
JP7588808B2 (ja) 2019-03-26 2024-11-25 精電舎電子工業株式会社 超音波溶着装置

Also Published As

Publication number Publication date
EP3563963A1 (en) 2019-11-06
CN110177644B (zh) 2021-02-19
JP6625243B2 (ja) 2020-01-08
EP3563963B1 (en) 2021-12-15
KR102186301B1 (ko) 2020-12-03
KR20190085139A (ko) 2019-07-17
JPWO2018122964A1 (ja) 2019-06-27
CN110177644A (zh) 2019-08-27
US20200070431A1 (en) 2020-03-05
US10625475B2 (en) 2020-04-21
EP3563963A4 (en) 2019-12-11

Similar Documents

Publication Publication Date Title
JP6625243B2 (ja) 超音波接合用工具および超音波接合方法
JP5899938B2 (ja) 二次電池の製造方法、二次電池
JP4792945B2 (ja) 超音波接合装置および接合構造体
JP2013143336A (ja) 袋詰電極の製造方法、袋詰電極、二次電池、熱溶着装置
CN110064836B (zh) 接合构造体以及接合方法
JP6843870B2 (ja) セパレータの超音波溶着方法
JP6661535B2 (ja) 熱可塑性プラスチックの超音波溶接
JPH06155051A (ja) 金属箔の超音波接合方法
JP6493782B2 (ja) 超音波接合装置、及び超音波接合装置を用いた蓄電素子の製造方法
JP7255900B2 (ja) 超音波接合方法
JPH10244380A (ja) 多数枚積層した金属箔の超音波溶接方法
JPH10225779A5 (ja)
KR102669788B1 (ko) 금속 시트 부품을 연결하여 적층 스택을 형성하기 위한 방법
CN110383528B (zh) 隔离件超声波焊接方法
JP2015139780A (ja) 共振器および共振器の製造方法
JP6677920B2 (ja) アンビル、ホーン、超音波接合ツール、及び蓄電素子の製造方法
JP2008000638A (ja) 超音波ホーン
CN110997288A (zh) 具有阻挡层的多层复合物的焊接方法
JP6861017B2 (ja) 超音波接合方法および接合体
JP4609169B2 (ja) 超音波接合方法
JPS624214B2 (ja)
JP2020059052A (ja) 接合構造体
JP2012225458A (ja) 継手ベルト
JP2538574C (ja)

Legal Events

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

Ref document number: 16924933

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2018558568

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20197018855

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2016924933

Country of ref document: EP

Effective date: 20190729