WO2015050228A1 - 電気デバイスのセパレータ接合装置 - Google Patents
電気デバイスのセパレータ接合装置 Download PDFInfo
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- WO2015050228A1 WO2015050228A1 PCT/JP2014/076453 JP2014076453W WO2015050228A1 WO 2015050228 A1 WO2015050228 A1 WO 2015050228A1 JP 2014076453 W JP2014076453 W JP 2014076453W WO 2015050228 A1 WO2015050228 A1 WO 2015050228A1
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- WIPO (PCT)
- Prior art keywords
- separator
- separators
- horn
- ceramic
- pair
- Prior art date
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- 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
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- 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
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- 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
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- 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
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- 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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
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- 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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
- B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
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- 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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
- B29C65/787—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains
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- 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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7888—Means for handling of moving sheets or webs
- B29C65/7891—Means for handling of moving sheets or webs of discontinuously moving sheets or webs
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- 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
- B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
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- 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
- B29C66/005—Detaching the article from the joining tool
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- 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
- B29C66/006—Preventing damaging, e.g. of the parts to be joined
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
- B29C66/81427—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 comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
- B29C66/81429—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 comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
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- 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
- B29C66/8145—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81463—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
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- 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
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
- B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
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- 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
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
- B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- 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
- H01M50/406—Moulding; Embossing; Cutting
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- 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
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/431—Inorganic material
- H01M50/434—Ceramics
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a separator joining apparatus for electrical devices.
- a battery such as a lithium ion secondary battery is configured by sealing a power generation element to be charged and discharged with an exterior material.
- the power generation element is configured, for example, by laminating a plurality of packaged electrodes formed by sandwiching a positive electrode with a pair of separators and negative electrodes.
- the packaged electrode joins both ends thereof to suppress the movement of the positive electrode, thereby preventing a short circuit with the adjacent negative electrode through the separator (see, for example, Patent Document 1).
- there is one that uses ultrasonic waves for joining the constituent members of the secondary battery see, for example, Patent Document 2.
- the present invention has been made to solve the above-described problems, and provides a separator joining apparatus for an electric device that can make the space occupied by the equipment compact even if a unit that joins using ultrasonic waves is applied to the line equipment.
- the purpose is to do.
- the present invention that achieves the above object is a separator joining apparatus for an electric device that joins a pair of separators sandwiching an electrode to each other.
- the apparatus includes a transmitting unit that generates ultrasonic vibration, an amplifying unit that amplifies the generated vibration, a contact unit that applies the amplified vibration to the separator to join the pair of separators, and a pair of the contact unit.
- a separator transport unit that transports the pair of separators to a joining position for joining the separators.
- the transmitting section, the amplifying section, and the abutting section are arranged in parallel to the separator transport direction and arranged on a plane orthogonal to the separator surface, or the transmitting section and the amplifying section are parallel to the separator transport direction. It is characterized in that the separators are arranged closer to the center in the width direction of the separator than the contact portion.
- FIG. 4 is a partial cross-sectional view showing the configuration of FIG. 3 along line 4-4 shown in FIG. 3; It is a perspective view which shows the separator joining apparatus of the electric device which concerns on one Embodiment of this invention. It is the figure which looked at the same joining apparatus from the upstream of the conveyance direction.
- FIG. 5A It is a side view which shows the separator junction part vicinity in the joining apparatus. It is a perspective view which shows the modification of the separator junction part in the joining apparatus. It is a front view of Drawing 5D. It is a top view of Drawing 5D. It is a perspective view which shows the separator holding
- FIG. 8 It is a fragmentary sectional view showing typically the state immediately after joining a pair of ceramic separators by the separator joined part of Drawing 5A. It is a photograph which shows a pair of ceramic separator in the state of FIG. 10 from the side surface along a conveyance direction. It is a perspective view which shows the various forms of the horn of the separator junction part of FIG. 5A. It is a perspective view which shows a separator holding
- FIG. 1 to FIG. 14 arrows represented by X, Y, and Z are used to indicate the orientation.
- the direction of the arrow represented by X indicates the conveyance direction X of the ceramic separator 40, the positive electrode 20, and the like.
- the direction of the arrow represented by Y indicates the direction Y that intersects the transport direction of the ceramic separator 40, the positive electrode 20, and the like.
- the direction of the arrow represented by Z indicates the stacking direction Z of the ceramic separator 40, the positive electrode 20, and the like.
- the electrical device formed by joining with the separator joining apparatus 100 corresponds to, for example, the packaged electrode 11 of the lithium ion secondary battery 10 as shown in FIGS.
- the lithium ion secondary battery 10 is configured by sealing a power generation element 12 to be charged and discharged with an exterior material 50.
- the power generation element 12 is configured by alternately laminating the packed electrode 11 and the negative electrode 30 in which the positive electrode 20 is sandwiched and bonded by a pair of ceramic separators 40.
- the lithium ion secondary battery 10 vibrates or receives an impact, it is adjacent to each other via the ceramic separator 40 by suppressing the movement of the positive electrode 20 by the joint portions 40h formed at both ends of the pair of ceramic separators 40. A short circuit between the positive electrode 20 and the negative electrode 30 is prevented.
- the joining portion 40h moves the ceramic layer 42 adjacent to the polypropylene layer 41 to be melted to the surrounding area while roughening the polypropylene layers 41 in a state where the ceramic layers 42 face each other, The polypropylene layers 41 facing each other are formed by welding.
- the separator joining apparatus 100 is shown in FIGS. 5A to 7 and the like. Separator joining apparatus 100 is used in joining an electric device (packed electrode 11 of lithium ion secondary battery 10). Separator joining apparatus 100 includes ceramic separators 40 each including a sheet-like molten material (corresponding to polypropylene layer 41) and a molten material (corresponding to polypropylene layer 41) laminated on polypropylene layer 41 and having a melting temperature higher than that of polypropylene layer 41. Join.
- the separator bonding apparatus 100 includes an electrode transport unit 110 that transports electrodes (positive electrode 20 or negative electrode 30), a first separator transport unit 120 (corresponding to a separator transport unit) that transports a ceramic separator 40 laminated on one surface of the positive electrode 20, and A second separator transport unit 130 (corresponding to a separator transport unit) that transports the ceramic separator 40 laminated on the other surface of the positive electrode 20 is included.
- the separator bonding apparatus 100 includes a separator holding unit 140 that holds a pair of ceramic separators 40 that sandwich the positive electrode 20, a separator bonding unit 150 that bonds the pair of ceramic separators 40 to each other, and the ceramic separators 40 being bonded together.
- separator transport follower 160 that follows the transport operation of the packaged electrode transport unit 170 is included.
- the separator joining apparatus 100 includes a packaged electrode transport unit 170 that transports the packaged electrode 11 and a control unit 180 that controls the operation of each component.
- the packaged electrode 11 formed by bonding by the separator bonding apparatus 100 will be described with reference to FIGS. 1 to 4 based on the configuration of the lithium ion secondary battery 10 including the packaged electrode 11.
- FIG. 1 is a perspective view showing a lithium ion secondary battery 10 configured using an electric device (packed electrode 11).
- FIG. 2 is an exploded perspective view showing the lithium ion secondary battery 10 of FIG.
- FIG. 3 is a perspective view showing a state in which the negative electrodes 30 are laminated on both surfaces of the packaged electrode 11 of FIG.
- FIG. 4 is a partial cross-sectional view showing the configuration of FIG. 3 along line 4-4 shown in FIG.
- the positive electrode 20 corresponds to an electrode, and is formed by binding a positive electrode active material 22 on both surfaces of a positive electrode current collector 21 which is a conductor.
- the positive electrode terminal 21 a for taking out electric power is formed to extend from a part of one end of the positive electrode current collector 21.
- the positive electrode terminals 21a of the stacked positive electrodes 20 are fixed to each other by welding or adhesion.
- the material of the positive electrode current collector 21 of the positive electrode 20 is, for example, aluminum expanded metal, aluminum mesh, or aluminum punched metal.
- the material of the positive electrode active material 22 of the positive electrode 20 includes various oxides (lithium manganese oxide such as LiMn 2 O 4 , manganese dioxide, lithium nickel oxide such as LiNiO 2 , and lithium cobalt oxide such as LiCoO 2. Products, lithium-containing nickel cobalt oxide, or lithium-containing amorphous vanadium pentoxide) or chalcogen compounds (titanium disulfide, molybdenum disulfide) or the like.
- the negative electrode 30 corresponds to an electrode having a polarity different from that of the positive electrode 20, and is formed by binding a negative electrode active material 32 on both surfaces of a negative electrode current collector 31 which is a conductor.
- the negative electrode terminal 31 a extends from a part of one end of the negative electrode current collector 31 so as not to overlap with the positive electrode terminal 21 a formed on the positive electrode 20.
- the length of the negative electrode 30 in the longitudinal direction is longer than the length of the positive electrode 20 in the longitudinal direction.
- the length of the negative electrode 30 in the short direction is the same as the length of the positive electrode 20 in the short direction.
- the negative electrode terminals 31a of the plurality of negative electrodes 30 that are stacked are fixed to each other by welding or adhesion.
- the material of the negative electrode current collector 31 of the negative electrode 30 of the negative electrode for example, copper expanded metal, copper mesh, or copper punched metal is used.
- a carbon material that absorbs and releases lithium ions is used.
- carbon materials for example, natural graphite, artificial graphite, carbon black, activated carbon, carbon fiber, coke, or organic precursor (phenol resin, polyacrylonitrile, or cellulose) is heat-treated in an inert atmosphere and synthesized. Carbon is used.
- the ceramic separator 40 is provided between the positive electrode 20 and the negative electrode 30 and electrically isolates the positive electrode 20 and the negative electrode 30.
- the ceramic separator 40 holds the electrolytic solution between the positive electrode 20 and the negative electrode 30 to ensure ion conductivity.
- the ceramic separator 40 is formed in a rectangular shape. The length in the longitudinal direction of the ceramic separator 40 is longer than the length in the longitudinal direction of the negative electrode 30 excluding the portion of the negative electrode terminal 31a.
- the ceramic separator 40 is formed, for example, by laminating a ceramic layer 42 corresponding to a heat-resistant material on a polypropylene layer 41 corresponding to a molten material.
- the ceramic layer 42 has a higher melting temperature than the polypropylene layer 41.
- the pair of ceramic separators 40 sandwich the positive electrode 20 and laminate the ceramic layers 42 facing each other.
- the ceramic layer 42 is in contact with the positive electrode active material 22 of the positive electrode 20.
- the polypropylene layer 41 of the ceramic separator 40 is formed of polypropylene in a sheet shape.
- the polypropylene layer 41 is impregnated with a nonaqueous electrolytic solution prepared by dissolving an electrolyte in a nonaqueous solvent.
- a polymer is contained in order to hold the non-aqueous electrolyte in the polypropylene layer 41.
- the ceramic layer 42 is formed by, for example, applying a ceramic obtained by molding an inorganic compound at a high temperature to the polypropylene layer 41 and drying it.
- the ceramic is made of a porous material formed by bonding a ceramic particle such as silica, alumina, zirconium oxide, titanium oxide or the like and a binder.
- the pair of ceramic separators 40 are bonded to each other by a plurality of bonding portions 40 h formed at both ends in the longitudinal direction along the conveying direction X of the separator bonding apparatus 100. While the ceramic layers 42 face each other, the joint 40h partially melts the polypropylene layers 41 while moving the ceramic layer 42 adjacent to the polypropylene layer 41 to the surrounding area to make it rough and face each other. It is formed by welding the polypropylene layers 41 together.
- a pair of ceramic separators 40 are stacked so as to sandwich both surfaces of the positive electrode 20 and packed into a bag, thereby forming a packaged electrode 11.
- three joint portions 40h are formed on both sides along the longitudinal direction of the pair of ceramic separators 40, for example, at both end portions and the central portion. Even if the lithium ion secondary battery 10 vibrates or receives an impact, the movement of the positive electrode 20 in the packaged electrode 11 can be suppressed by the joint portions 40 h formed at both ends in the longitudinal direction of the ceramic separator 40. . That is, it is possible to prevent a short circuit between the adjacent positive electrode 20 and negative electrode 30 through the ceramic separator 40. Therefore, the lithium ion secondary battery 10 can maintain the desired electrical characteristics.
- the exterior material 50 is composed of, for example, laminate sheets 51 and 52 each having a metal plate therein, and covers and seals the power generation element 12 from both sides.
- the electrolyte solution is injected from the open portions of the laminate sheets 51 and 52, and the ceramic separator 40 and the like are impregnated with the electrolyte solution. While decompressing the inside from the open portions of the laminate sheets 51 and 52, the open portions are also heat-sealed and completely sealed.
- the laminate sheets 51 and 52 of the exterior material 50 are each formed by laminating three kinds of materials to form a three-layer structure.
- the first layer corresponds to a heat-fusible resin and uses, for example, polyethylene (PE), ionomer, or ethylene vinyl acetate (EVA).
- the first layer material is adjacent to the negative electrode 30.
- the second layer corresponds to a metal foil formed, for example, an Al foil or Ni foil.
- the third layer corresponds to a resinous film and uses, for example, rigid polyethylene terephthalate (PET) or nylon.
- each component of the separator bonding apparatus 100 (the electrode conveyance unit 110, the first separator conveyance unit 120, the first number) that embodies the separator bonding method of the electrical device (corresponding to the packaged electrode 11 of the lithium ion secondary battery 10).
- the two-separator transport unit 130, separator holding unit 140, separator joining unit 150, separator transport follower 160, packaged electrode transport unit 170, and control unit 180) will be described in order with reference to FIGS. 5A to 12.
- FIG. 5A is a perspective view showing the separator joining apparatus 100 of the electric device (packed electrode 11)
- FIG. 5B is a view of the joining apparatus as seen from the upstream side in the transport direction
- FIG. 5C is the vicinity of the separator joining portion in the joining apparatus.
- FIG. FIG. 6 is a perspective view showing separator holding unit 140, separator joint 150, separator conveyance follower 160, and packaged electrode conveyance unit 170 of FIG. 5A.
- FIG. 7 is a perspective view showing the separator joint 150 of FIG. 5A.
- FIG. 8 is a partial cross-sectional view schematically showing a state immediately before the pair of ceramic separators 40 are joined by the separator joint 150 of FIG. 5A.
- FIG. 9 is a photograph showing the pair of ceramic separators 40 in the state of FIG.
- FIG. 10 is a partial cross-sectional view schematically showing a state immediately after the pair of ceramic separators 40 are joined by the separator joint 150 of FIG. 5A.
- FIG. 11 is a photograph showing the pair of ceramic separators 40 in the state of FIG.
- FIG. 12 is a perspective view showing various forms of the horn of the separator joint 150 of FIG. 5A.
- the electrode conveyance part 110 cuts out and conveys the positive electrode 20 from the elongate positive electrode base material 20A shown in FIGS. 5A and 5B.
- the electrode supply roller 111 of the electrode transport unit 110 has a cylindrical shape, and is wound and held with a long positive electrode base material 20A.
- the conveyance roller 112 has an elongated cylindrical shape, and is guided to the conveyance belt 113 in a state where a certain tension is applied to the positive electrode base material 20 ⁇ / b> A wound around the electrode supply roller 111.
- the conveyor belt 113 is an endless belt provided with a plurality of suction ports on the outer peripheral surface, and conveys the positive electrode base material 20A along the conveyance direction X in a sucked state.
- the width of the transport belt 113 along the direction Y intersecting the transport direction X is longer than the width of the positive electrode base material 20A.
- a plurality of rotation rollers 114 are arranged on the inner peripheral surface of the conveyance belt 113 along the direction Y intersecting the conveyance direction X to rotate the conveyance belt 113.
- one is a driving roller provided with power, and the other is a driven roller driven by the driving roller.
- the transport roller 112 and the electrode supply roller 111 rotate following the rotation of the transport belt 113.
- the cutting blades 115 and 116 of the electrode transport unit 110 are arranged so as to be adjacent to each other along a direction Y intersecting the transport direction X, and the positive electrode base 20A is cut into a predetermined shape to form a positive electrode.
- the cutting blade 115 is provided with a straight and sharp blade at the tip, and cuts one end of the positive electrode base material 20A along the direction Y in a straight line.
- the cutting blade 116 is provided with a sharp blade that is partially refracted at the tip, and cuts the other end of the positive electrode base material 20A immediately after one end is cut according to the shape of the positive electrode terminal 21a. To do.
- the cradle 117 receives the cutting blade 115 and the cutting blade 116 for cutting the positive electrode base material 20A.
- the cradle 117 is disposed to face the cutting blade 115 and the cutting blade 116 via the positive electrode base material 20A to be conveyed.
- the electrode transport unit 110 carries out the positive electrode 20 cut out from the positive electrode base material 20 ⁇ / b> A so as to pass between the first separator transport unit 120 and the second separator transport unit 130.
- the first separator transport unit 120 is a ceramic separator 40 for stacking on one surface of the positive electrode 20 (upward in FIG. 5A along the stacking direction Z) from the ceramic separator substrate 40A. Is cut out and transported.
- the first separator transport unit 120 is disposed on the downstream side in the transport direction X with respect to the electrode transport unit 110 and in the upper direction shown in FIG.
- the 1st separator supply roller 121 of the 1st separator conveyance part 120 consists of cylindrical shapes, and winds and hold
- the first pressure roller 122 and the first nip roller 123 that are arranged to face each other have an elongated cylindrical shape, and apply a certain tension to the ceramic separator substrate 40A wound around the first separator supply roller 121. In this state, it is guided to the first transport drum 124.
- the first transport drum 124 has a cylindrical shape, and a plurality of suction ports are provided on the outer peripheral surface thereof.
- the width of the first transport drum 124 along the direction Y intersecting the transport direction X is shorter than the width of the ceramic separator substrate 40A. That is, both ends of the ceramic separator substrate 40A protrude outward from the first transport drum 124 in the direction Y. In this way, the first transport drum 124 avoids interference with the separator holding part 140 and the separator joint part 150.
- the first separator supply roller 121 is driven and rotated in addition to the first pressure roller 122 and the first nip roller 123.
- the first cutting blade 125 is provided with a straight and sharp blade at the tip, is disposed along a direction Y intersecting the transport direction X, and is used for a long ceramic separator sucked by the first transport drum 124
- the base material 40A is cut with a certain width.
- the first transport drum 124 is laminated with the ceramic separator 40 cut into a rectangular shape being brought close to one surface of the positive electrode 20 carried out from the electrode transport unit 110.
- the ceramic separator 40 has the ceramic layer 42 facing the one surface of the positive electrode 20.
- the second separator transport unit 130 is a separator for stacking from the ceramic separator base material 40A on the other surface facing the one surface of the positive electrode 20 (downward in FIG. 5A along the stacking direction Z). 40 is cut out and transported.
- the second separator transport unit 130 is disposed downstream of the electrode transport unit 110 in the transport direction X and below the stacking direction Z in FIG.
- the second separator transport unit 130 is disposed to face the first separator transport unit 120 along the stacking direction Z.
- the second separator supply roller 131 of the second separator transport unit 130 has a cylindrical shape, and holds the long ceramic separator base material 40A wound around it.
- the second pressure roller 132 and the second nip roller 133 that are arranged to face each other have an elongated cylindrical shape, and apply a certain tension to the ceramic separator substrate 40A wound around the second separator supply roller 131. In this state, it is guided to the second transport drum 134.
- the second transport drum 134 has a cylindrical shape, and a plurality of suction ports are provided on the outer peripheral surface thereof. Similarly to the first transport drum 124, the second transport drum 134 has a width along the direction Y intersecting the transport direction X shorter than the width of the ceramic separator substrate 40A. Interference with the separator joint 150 is avoided.
- the second cutting blade 135 is provided with a linear sharp blade at the tip, is disposed along the direction Y intersecting the transport direction X, and is a long ceramic separator 40 sucked by the second transport drum 134. Is cut to a certain width.
- the second transport drum 134 is laminated while bringing the ceramic separator substrate 40A cut into a rectangular shape close to the other surface side of the positive electrode 20 carried out from the electrode transport unit 110.
- the ceramic separator 40 has the ceramic layer 42 facing the other surface of the positive electrode 20.
- the first separator transport unit 120 and the second separator transport unit 130 are stacked so that the positive electrode 20 is sandwiched between the pair of ceramic separators 40 in the gap portion between the first transport drum 124 and the second transport drum 134.
- Transport along the transport direction X is a direction in which the pair of separators 40 overlap and the separators 40 are transported to a position where they are joined by a horn 151 of a separator joint 150 described later.
- Separator holding portions 140 and separator joint portions 150 are disposed at both ends on the downstream side along the transport direction X, respectively.
- Reference numerals 118, 126, and 136 are support members that rotatably support the electrode supply roller 111, the first separator supply roller 121, and the second separator supply roller 131, and protrude from the wall surface 190.
- Support members 118, 126, and 136 are each connected to a power mechanism (not shown) within wall surface 190.
- the support members 118, 126, and 136 support the electrode supply roller 111, the first separator supply roller 121, and the second separator supply roller 131 in a cantilever state. It is good also as a structure which supports from both sides.
- the separator holding unit 140 holds a pair of ceramic separators 40 shown in FIGS. 5A and 6 and sandwiched and stacked with the positive electrode 20 interposed therebetween.
- the separator holding unit 140 is adjacent to the electrode transport unit 110 along the transport direction X, and is disposed downstream of the first separator transport unit 120 and the second separator transport unit 130 in the transport direction X.
- One set of separator holding portions 140 is disposed at both ends along the conveyance direction X of the packaged electrode conveyance portion 170.
- the holding plate 141 of the separator holding unit 140 is formed in a long plate shape.
- the holding plate 141 is disposed below the stacking direction Z of the ceramic separator 40 in FIG. 6 and in parallel with the end portion along the transport direction X of the ceramic separator 40.
- the holding plate 141 assists the bonding of the ceramic separators 40 by the separator bonding portion 150 by holding the pair of ceramic separators 40 from below in the stacking direction Z in FIG.
- the holding plate 141 has a rectangular hole in order to avoid interference with the horn 151 and the anvil 154 of the separator joint 150.
- the holding plate 141 of the separator holding part 140 is raised and lowered along the stacking direction Z by the driving support column 158 of the separator joint part 150.
- the holding plate 141 holds the pair of ceramic separators 40 from below in the stacking direction Z in FIG. 6 while the horn 151 and the anvil 154 are in contact with each other so as to sandwich the pair of ceramic separators 40.
- the holding plate 141 is retracted downward in the stacking direction Z shown in FIG. 6 while the horn 151 and the anvil 154 are separated from the pair of ceramic separators 40.
- the separator joining portion 150 relates to FIGS. 5A to 12 and joins the ceramic separators 40 laminated so as to sandwich the positive electrode 20 by heating them with frictional heat generated by ultrasonic waves.
- the separator joint 150 is disposed on the downstream side in the transport direction X with respect to the first separator transport unit 120 and the second separator transport unit 130.
- One set of separator joints 150 is disposed at both ends along the transport direction X. Separator joining portion 150 is close to separator holding portion 140.
- the horn 151 (corresponding to the contact portion) of the separator joint 150 applies ultrasonic waves to the ceramic separator 40.
- the horn 151 is made of metal, and integrally includes a rectangular main body portion 151a and a protruding portion 151b (corresponding to a contact portion) formed so as to protrude from a corner of the main body portion 151a. In the present embodiment, four protrusions 151b are formed on the horn 151b, but the present invention is not limited to this.
- the horn 151 is pressed by the pressing member 155 as indicated by the arrow P1 in FIG. 7, and the protruding portion 151 b contacts the polypropylene layer 41 of the ceramic separator 40.
- the horn 151 applies ultrasonic waves along the bonding surfaces of the ceramic layers 42 intersecting with the stacking direction Z as shown by the wavy line S1 in FIG.
- the booster 152 (corresponding to the amplifying unit) of the separator joint 150 amplifies the ultrasonic wave while fastening the horn 151 and the vibrator 153 (corresponding to the transmitting unit).
- the booster 152 is made of metal and has a cylindrical shape.
- the vibrator 153 generates vibration corresponding to the frequency of the ultrasonic wave by using electric power supplied from the outside.
- the vibrator 153 has one end fastened to the booster 152 and a power cable connected to the other end facing the one end.
- the anvil 154 corresponds to a contact member, and biases the horn 151 while receiving ultrasonic vibration derived from the horn 151.
- the anvil 154 is made of metal, and integrally includes a rectangular main body 154a and a protrusion 154b formed to protrude from one end of the main body 154a.
- the protruding portion 154b of the anvil 154 faces the protruding portion 151b of the horn 151 with the pair of ceramic separators 40 interposed therebetween.
- the anvil 154 is pressed by the urging member 156 to urge the horn 151 as indicated by the arrow P2 in FIG.
- the pressing member 155 (corresponding to the holding unit) of the separator joint 150 presses the horn 151 along the stacking direction Z in the downward direction shown in FIG.
- One end of the pressing member 155 is formed in an annular shape, and the booster 152 fastened to the horn 151 is inserted therethrough, and the horn 151, the booster 152, and the vibrator 153 are rotatably held.
- the horn 151 and booster 152 shown on the front side and the horn 151 and booster 152 shown on the back side are fastened with screws, and the rotation direction R in which the screws of the horn 151 and booster 152 on the front side and back side are tightened is Both are configured in the same direction.
- the side of the pressing member 155 is movably connected to the drive column 158 along the stacking direction Z.
- the pressing member 155 has a contact member 155a that can be switched between contact and non-contact with the horn 151.
- the contact member 155a is configured to be able to protrude and retract from the plate-like surface of the pressing member 155 along the stacking direction Z, thereby switching contact or non-contact with the horn 151.
- the urging member 156 presses the anvil 154 upward along the stacking direction Z shown in FIG.
- the urging member 156 is formed in a plate shape, and an anvil 154 is joined to the end thereof.
- the urging member 156 is connected to the drive column 158 so as to be movable along the stacking direction Z.
- the driving stage 157 of the separator joint 150 moves the pressing member 155 and the urging member 156 along the stacking direction Z via the driving column 158.
- the driving force generated by the driving stage 157 is converted into a driving force along the stacking direction Z by the driving column 158 and used.
- the horn 151, the booster 152, and the vibrator 153 are arranged in a plane parallel to the separator transport direction and perpendicular to the surface of the ceramic separator 40.
- the horn 151, the booster 152, and the vibrator 153 are located above the separator holding unit 140 as shown in FIG. 7 and are arranged along the transport direction X.
- the pressing member 155 is arranged along the stacking direction Z with respect to the horn 151, the booster 152, and the vibrator 153.
- the anvil 154 and the urging member 156 are arranged below the separator holding portion 140 along the stacking direction Z as shown in FIG.
- the drive stage 157 is disposed along the stacking direction Z directly below 7 in the drawing, and is disposed along the transport direction X, similarly to the biasing member 156 on which the anvil 154 is placed.
- the horn 151, the booster 152, and the vibrator 153 that constitute the separator joint 150 are arranged along the transport direction X, and the anvil 154, the pressing member 155, the biasing member 156, the driving stage 157, and the driving column 158 are arranged.
- the joining apparatus 100 is a facility with a line, it is difficult to avoid an increase in the size of the facility in the line conveyance direction, but it is necessary to dispose the facility in the axial direction of the support member 118 that supports the electrode supply roller 111 and the like. There is not much sex. Therefore, the above-described constituent members of the ultrasonic bonding portion 150 that performs ultrasonic bonding are arranged along the transport direction X of the electrode transport portion 110 and the stacking direction Z of the electrodes, while establishing the layout of each constituent member. The space occupied by the entire facility can be made compact.
- FIG. 5D is a perspective view showing a modified example of the separator joining portion in the separator joining device of the electrical device according to the present embodiment
- FIG. 5E is a front view of FIG. 5D
- FIG. 5F is a plan view of FIG.
- the horn 151, the booster 152, and the vibrator 153 are arranged side by side in the transport direction X.
- the horn 151, the booster 152, and the vibrator 153 are arranged side by side in the stacking direction Z as shown in FIG. May be.
- the holding member 155b supports the horn 151c, the booster 152a, and the vibrator 153a so as to be rotatable around an axis parallel to the stacking direction Z.
- the holding member 155b is provided with an abutting member 155c that can project and retract toward the main body 151d of the horn 151c.
- the protrusion 151e of the horn 151c is formed downward in the stacking direction Z.
- the XZ plane formed by the conveying direction X in which the horn 151, the booster 152, and the vibrator 153 are arranged and the stacking direction Z in which the horn 151c, the booster 152a, and the vibrator 153a are arranged is the plane of the separator 40 (XY plane) as described above. And a surface along the transport direction of the separator 40.
- the booster 152a and the vibrator 153a are transported in the separator 40 with reference to the horn 151c as shown by arrows A1 and A2 in FIG. 5F.
- the space occupied by the entire facility can be made compact even if it is arranged in a plane that is orthogonal to the plane of the separator 40, that is, a plane that is orthogonal to the plane of the separator 40 and that is inclined inward with respect to the horn 151c. it can.
- the ceramic separator 40 formed by laminating the polypropylene layer 41 and the ceramic layer 42 has the ceramic layers 42 facing each other as shown in FIG.
- FIGS. 1 A state immediately after the pair of ceramic separators 40 are joined by the separator joining portion 150 is shown in FIGS.
- the horn 151 is in contact with the polypropylene layer 41 of one ceramic separator 40 of the pair of ceramic separators 40 and is represented by a wavy line S1 in FIG. 10 along the bonding surface between the ceramic layers 42 intersecting the stacking direction Z. Ultrasonic waves were applied to the.
- the direction of the wavy line S1 corresponds to the transport direction X that intersects the stacking direction Z.
- the pressing member 155 pressed the horn 151 toward the polypropylene layer 41 of the ceramic separator 40 as represented by the arrow P1 in FIG.
- the urging member 156 pressed the anvil 154 toward the horn 151 as indicated by an arrow P2 in FIG.
- the pair of ceramic separators 40 becomes rough as the polypropylene layer 41 is heated and melted as shown in FIG. 11 and the ceramic layers 42 move from the joint 40h to the surrounding region. Therefore, the facing polypropylene layers 41 could be joined.
- the horn 151 described above is shown in FIG. Since the ultrasonic wave is applied to the horn 151 by the vibrator 153, the portion facing the anvil 154 deteriorates. Therefore, when the protrusion 151b1 formed at one corner of one side surface of the main body 151a deteriorates, first, the contact member 155a of the pressing member 155 is changed from the state in contact with the side surface of the horn 151 to the non-contact state. The main body 151a is rotated 180 ° about the transport direction X as a rotation axis (see symbol R in FIG. 6), and the protrusion 151b2 facing the protrusion 151b1 is used.
- the protruding portion 151b2 deteriorates, the horns 151 arranged one by one so as to face each other along the direction Y via the packaged electrode transport portion 170 are exchanged so as to move in parallel along the direction Y.
- the projection 151b3 of the replaced horn 151 is used.
- the contact member 155a is brought into a non-contact state with the horn 151, the main body portion 151a is rotated by 180 ° about the transport direction X as a rotation axis, and the protruding portion 151b4 facing the protruding portion 151b3 is used. To do.
- the life of the horn 151 can be extended four times. Further, by rotating the horn 151 including the booster 152 and the rotor 153, the diagonal positions of the protrusions 151b1 to 151b4 for joining the separators can be easily exchanged. Further, by switching contact or non-contact with the horn 151 by the contact member 155a of the pressing member 155, the projections 151b1 to 151b4 to be used can be easily switched. Further, by using the same type of screws for fastening the front and back horns 151 and the booster 152 in FIG. 7, the front and back horns 151 can be shared, thereby reducing costs. be able to.
- a horn 191 according to Modification 1 of the horn 151 is shown in FIG.
- the horn 191 is integrally formed with two protrusions 191b so as to be adjacent to each other at four corners on one side of the main body 191a so as to be orthogonal to each other. Therefore, the life of the horn 191 can be extended to twice the life of the horn 151 by using another protrusion 191b each time the protrusion 191b deteriorates.
- a horn 192 according to Modification 2 of the horn 151 is shown in FIG.
- one protrusion 192b is formed integrally with each of the four corners on one side of the main body 192a and the four corners on the other side facing the one side. Therefore, the life of the horn 192 can be extended to the same extent as the life of the horn 191 by using another protrusion 192b each time the protrusion 192b deteriorates.
- the anvil 154 receives ultrasonic vibration derived from the horn 151 via the pair of ceramic separators 40, and thus deteriorates in the same manner as the horn 151. Therefore, the anvil 154 has a plurality of protrusions 154b formed integrally with the main body 154a, as with the horn 151.
- the separator conveyance follower 160 follows the conveyance of the packaged electrode conveyance unit 170 and moves the separator junction 150 and the like while the separator bonding unit 150 is bonding the ceramic separators 40 to each other.
- the separator conveyance follower 160 is a lower side in FIG. 5A along the stacking direction Z of the packaged electrode conveyance unit 170, and is downstream of the first separator conveyance unit 120 and the second separator conveyance unit 130 in the conveyance direction X. It is arranged on the side.
- the X-axis stage 161 of the separator conveyance follower 160 mounts all the constituent members of the separator holding portion 140 and all the constituent members of the separator joint portion 150.
- the X-axis stage 161 moves so as to reciprocate between the downstream side and the upstream side in the transport direction X.
- the X-axis stage 161 moves along the downstream side in the transport direction X while the horn 151 and the anvil 154 are in contact with and joined to the pair of ceramic separators 40. On the other hand, when the horn 151 and the anvil 154 complete the joining of the pair of ceramic separators 40 and are separated from each other, the X-axis stage 161 moves at a high speed along the upstream side in the transport direction X and returns to the original position.
- the separator transport follower 160 moves the separator holding unit 140 and the separator joint 150 along the transport direction X. Therefore, while the pair of ceramic separators 40 are joined, the first separator transport unit 120 and the second separator transport unit 120 are moved.
- the operation of the separator transport unit 130 can be continued. That is, by using the X-axis stage 161, without stopping the rotation of the first transport drum 124 of the first separator transport unit 120 and the second transport drum 134 of the second separator transport unit 130, the pair of ceramic separators 40 Joining can be completed.
- the packaged electrode transport unit 170 transports the packaged electrode 11 formed by the separator joint 150 as shown in FIGS. 5A and 6.
- the packaged electrode transport unit 170 is adjacent to the electrode transport unit 110 along the transport direction X, and is disposed downstream of the first separator transport unit 120 and the second separator transport unit 130 in the transport direction X.
- the transport belt 171 of the packaged electrode transport unit 170 is an endless belt provided with a plurality of suction ports on the outer peripheral surface, and transports along the transport direction X while the packaged electrode 11 is sucked.
- the conveyance belt 171 has a width along the direction Y intersecting the conveyance direction X shorter than the width of the packaged electrode 11. That is, both ends of the bagging electrode 11 protrude outward from the conveyance belt 171 in the direction Y. In this way, the conveyor belt 171 avoids interference with the separator holding part 140 and the separator joining part 150.
- Rotating rollers 172 of the packaged electrode transport unit 170 are arranged on the inner peripheral surface of the transport belt 171 along the direction Y intersecting the transport direction X, and rotate the transport belt 171.
- the rotating roller 172 does not protrude from the conveyor belt 171 in order to avoid interference with the separator holding unit 140 and the separator joint 150.
- one is a driving roller provided with power, and the other is a driven roller driven by the driving roller.
- three transport belts 171 are arranged along the transport direction X.
- the suction pad 173 of the packaged electrode transport unit 170 is positioned to face the packaged electrode 11 above the packaged electrode 11 placed on the transport belt 171 in the stacking direction Z in FIG. 5A. Yes.
- the suction pad 173 has a plate shape, and a plurality of suction ports are provided on the surface that comes into contact with the bagging electrode 11.
- the elastic member 174 is located above the suction pad 173 in the stacking direction Z shown in FIG. 5A. One end of the elastic member 174 is joined to the suction pad.
- the stretchable member 174 is stretchable along the stacking direction Z by using an air compressor or the like as power.
- the X-axis stage 175 and the X-axis auxiliary rail 176 of the packaged electrode transport unit 170 support the other end of the telescopic member 174 so as to be movable.
- the X-axis stage 175 is disposed along the transport direction X and scans the telescopic member 174 along the transport direction X.
- the X-axis auxiliary rail 176 is disposed in parallel with the X-axis stage 175 and assists the scanning of the telescopic member 174 by the X-axis stage 175.
- the mounting table 177 has a plate shape, and is disposed on the downstream side in the conveyance direction X with respect to, for example, three conveyance belts 171. The mounting table 177 temporarily stores and stores the packaged electrode 11.
- the control unit 180 is shown in FIG. 5A, and includes an electrode transport unit 110, a first separator transport unit 120, a second separator transport unit 130, a separator holding unit 140, a separator joining unit 150, a separator transport follower 160, and a packaged electrode transport unit. Each operation of 170 is controlled.
- the controller 181 of the control unit 180 includes a ROM, a CPU, and a RAM.
- a ROM Read Only Memory stores a control program related to the separator joining apparatus 100.
- the control program includes the rotation roller 114 and the cutting blades 115 and 116 of the electrode transport unit 110, the first transport drum 124 and the first cutting blade 125 of the first separator transport unit 120, and the second transport drum of the second separator transport unit 130. 134 and control of the second cutting blade 135 are included.
- control program includes the holding plate 141 of the separator holding unit 140, the vibrator 153 and the drive stage 157 of the separator bonding unit 150, the X-axis stage 161 of the separator conveyance follower 160, and the rotation roller 172 of the packaged electrode conveyance unit 170. And those related to the control of the expansion and contraction member 174 and the like.
- a CPU Central Processing Unit of the control unit 180 controls the operation of each component of the separator joining apparatus 100 based on the control program.
- a RAM Random Access Memory temporarily stores various data related to each component of the separator joining apparatus 100 under control. The data relates to, for example, the operation timing of the vibrator 153 of the separator joint 150.
- the electrode transport section 110 forms the positive electrode 20 by cutting the long positive electrode base material 20A one by one into a predetermined shape by the cutting blades 115 and 116.
- the electrode transport unit 110 transports the positive electrode 20 between the first separator transport unit 120 and the second separator transport unit 130.
- the first separator transport unit 120 cuts out and transports the ceramic separator 40 to be laminated on one surface of the positive electrode 20 from the ceramic separator substrate 40A.
- the long ceramic separator substrate 40A is cut into a rectangular shape one by one by the first cutting blade 125, and the ceramic separator 40 is formed.
- the 1st separator conveyance part 120 laminates
- the second separator transport unit 130 cuts out and transports the ceramic separator 40 to be laminated on the other surface facing the one surface of the positive electrode 20 from the ceramic separator substrate 40A.
- the long ceramic separator substrate 40A is cut into a rectangular shape one by one by the second cutting blade 135, and the ceramic separator 40 is formed.
- the second separator transport unit 130 stacks the ceramic separator 40 on the other surface side of the positive electrode 20 transported from the electrode transport unit 110.
- the separator holding unit 140 holds a pair of ceramic separators 40 stacked on the positive electrode 20.
- the holding plate 141 assists the bonding of the ceramic separators 40 by the separator bonding portion 150 by holding the pair of ceramic separators 40 from below in the stacking direction Z in FIG. That is, while the horn 151 and the anvil 154 are in contact with the pair of ceramic separators 40, the holding plate 141 holds the ceramic separator 40 positioned below the pair from the lower side shown in FIG. .
- the separator joining portion 150 joins the ceramic separators 40 stacked so as to sandwich the positive electrode 20.
- the horn 151 abuts on the polypropylene layer 41 of the ceramic separator 40 and applies ultrasonic waves along the bonding surface of the ceramic layers 42 intersecting with the stacking direction Z as indicated by a broken line S1 in the drawing.
- the direction of the wavy line S1 corresponds to the transport direction X that intersects the stacking direction Z.
- the pressing member 155 presses the horn 151 along the stacking direction Z toward the polypropylene layer 41 of the ceramic separator 40 as represented by an arrow P1 in the drawing.
- the anvil 154 presses toward the horn 151 as represented by the arrow P2 in the figure.
- the pair of ceramic separators 40 is heated and melted by the polypropylene layer 41, and the ceramic layers 42 move from the joint 40h to the surrounding region to become rough, and the polypropylene layer 41 joins. Therefore, the ceramic separator 40 can be joined to each other from the state in which the ceramic layers 42 that are difficult to melt are opposed to each other.
- the separator conveyance follower 160 follows the conveyance operation of the packaged electrode conveyance unit 170 while the separator bonding unit 150 is bonding the ceramic separators 40 to each other.
- the X-axis stage 161 mounts all the constituent members of the separator holding portion 140 and all the constituent members of the separator joint portion 150.
- the X-axis stage 161 moves along the downstream side in the transport direction X while the horn 151 and the anvil 154 are in contact with and joined to the pair of ceramic separators 40. That is, by using the X-axis stage 161, the pair of ceramic separators 40 can be joined without stopping the rotation of the first transport drum 124 and the second transport drum 134.
- the packaged electrode transport unit 170 transports the packaged electrode 11 formed by the separator joint 150.
- the packaged electrode transport unit 170 places the packaged electrode 11 on the mounting table 177 and temporarily stores it.
- the temperature characteristics are high and thin members like foil can be joined together, but the unit using ultrasound is ultrasound.
- the structure of the vibrator and the booster that amplifies the vibration are complex, so when placed on a mass production line where various equipment is lined up, the overall size of the equipment becomes large, pressing the space in buildings such as factories. There is a problem such as.
- the horn 151, the booster 152, and the vibrator 153 that constitute the separator bonding portion 150 are parallel to the separator transport direction and the surface of the separator. Or the booster 152 and the vibrator 153 are arranged closer to the center in the width direction of the separator than the horn 151 when viewed from the direction parallel to the separator conveyance direction.
- the equipment components in the axial direction such as the support member 118 that supports the conveyance member 111 as shown in FIG. Is not necessarily arranged.
- the horn 151, the booster 152, and the vibrator 153 occupy the entire apparatus by arranging the separator 40 in the transport direction X and the stacking direction Z, or the booster 152 and the vibrator 153 closer to the center in the width direction than the horn 151. Space can be made compact.
- the horn 151 for ultrasonic bonding is provided with projections 151b1 to 151b4 that come into contact with the separator 40 so that the horn 151 can be rotated around a rotation axis parallel to the direction in which the booster 152 and the vibrator 153 are arranged. It is composed. Therefore, the protrusions at the diagonal positions of the protrusions 151b1 to 151b4 used by the operation of rotating the horn 151 can be exchanged, and the horn 151 is attached to the periphery of the joining device 100 for the replacement of the protrusions. There is no need to provide a space between the component members, and the space occupied by the entire joining device 100 can be reduced accordingly.
- the horn 151 constituting the separator joint 150 is configured to be disposed closer to the position P1 where the pair of separators 40 are overlapped than the pressing member 155 holding the horn 151. Therefore, by not arranging the pressing member 155 from the position where the separator 40 is supplied to the position where ultrasonic bonding starts in the electrode transport unit 110, the position where ultrasonic bonding starts can be shortened by the space of the pressing member 155. This can contribute to compactness in the line conveyance direction.
- the horn 151 is configured such that the protrusion 151b is arranged at the end of the main body 151a in the direction intersecting the transport direction X of the separator 40. Therefore, if the protrusion 151b is arranged over the end of the separator 40 or the like, the main body 151a can be arranged outside the separator 40, and the ultrasonic joining unit 150 for joining the separator is mass-produced. It can be applied to a transfer line.
- a plurality of protrusions 151b are provided such as protrusions 151b1 to 151b4, and the protrusions 151b1 to 151b4 to be used are configured to be replaceable. Therefore, the tool life at the time of joining separators using one horn can be made longer than before, which can contribute to cost reduction.
- the main body 151a of the horn 151 is configured to be rotatable, and the protrusions 151b1 to 151b4 that are in contact with the pair of separators 40 can be exchanged by the rotation of the main body 151a. Therefore, the space required for replacement of the protrusions 151b1 to 151b4 can be made compact compared to translational movement, etc., and the protrusions 151b1 to 151b4 used in the horn 151 can be easily and quickly replaced. Can contribute to shortening.
- the separator joint 150 includes a contact member 155a that is provided on the pressing member 155 that holds the horn 151 and that can project and retreat with respect to the horn 151.
- the contact member 155a is in contact with or in contact with the horn 151. It is configured to switch the rotation and fixing of the main body 151a by switching whether or not to perform. Therefore, the space required for rotating or fixing the horn 151 can be made compact.
- the horn 151 of the separator joint 150 arranged with respect to the separator 40 in the transport direction X is configured so that the fastening direction of the screw for fastening with the booster 152 is the same. For this reason, the horns 151 arranged in pairs with the transport direction X as a reference can be shared, which can contribute to cost reduction.
- FIG. 13 is a perspective view showing the separator holding unit 240, the separator bonding unit 150, the separator conveyance follower 160, and the packaged electrode conveyance unit 170 of the separator bonding apparatus.
- FIG. 14 is a cross-sectional view showing the operation of the separator holding portion 240 and the separator joint portion 150 of FIG.
- the separator joining apparatus has a configuration in which the pair of holding plates 241 and 242 are separated from the polypropylene layers 41 after the horn 151 is detached from the polypropylene layer 41 of the ceramic separator 40 as described above. It differs from the structure of the separator joining apparatus 100 which concerns on 1st Embodiment.
- the same reference numerals are used for components having the same configuration as in the first embodiment described above, and the above description is omitted.
- the configuration of the separator holding unit 240 will be described with reference to FIG.
- the separator holding unit 240 is disposed on the downstream side in the transport direction X from the first separator transport unit 120 and the second separator transport unit 130.
- One set of separator holding parts 240 is disposed at both ends along the carrying direction X of the packaged electrode carrying part 170.
- the holding plate 241 of the separator holding unit 240 is formed in a long plate shape, and is below the stacking direction Z of the ceramic separator 40 in FIG. 13 and at an end portion along the conveying direction X of the ceramic separator 40. They are arranged in parallel.
- the holding plate 242 has the same shape as the holding plate 241.
- the holding plate 241 and the holding plate 242 are disposed to face each other along the stacking direction Z with a pair of ceramic separators 40 interposed therebetween.
- the holding plate 241 has a rectangular hole in order to avoid interference with the anvil 154 of the separator joint 150.
- the holding plate 242 includes a rectangular hole in order to avoid interference with the horn 151 of the separator joint 150.
- the holding plates 241 and 242 are raised and lowered by the drive support column 158 of the separator joint 150 so as to approach and separate from each other along the stacking direction Z.
- the separator holding unit 240 holds the pair of ceramic separators 40 along the stacking direction Z by a pair of holding plates 241 and 242.
- the horn 151 and the anvil 154 are ultrasonically bonded to the pair of ceramic separators 40 while being pressed against the polypropylene layer 41.
- the horn 151 is detached upward along the stacking direction Z from the pair of ceramic separators 40 as indicated by the arrow T1 in FIG.
- the anvil 154 is spaced downward along the stacking direction Z from the pair of ceramic separators 40, as indicated by the arrow T2 in FIG.
- the holding plate 241 is separated downward along the stacking direction Z from the pair of ceramic separators 40 as represented by the arrow T ⁇ b> 4 in FIG. 14.
- the holding plate 242 is detached upward along the stacking direction Z from the pair of ceramic separators 40 as indicated by the arrow T ⁇ b> 3 in FIG. 14.
- the separator further has a pair of holding plates 241 and 242.
- the pair of holding plates 241 and 242 sandwich and hold the polypropylene layers 41 along the stacking direction Z.
- the pair of holding plates 241 and 242 are separated from the polypropylene layers 41 after the horn 151 is detached from the polypropylene layer 41.
- the horn 151 is in a state where the polypropylene layers 41 are held by the pair of holding plates 241 and 242 even if the horn 151 adheres to the polypropylene layer 41 when the pair of ceramic separators 40 are welded. Thus, it can be separated from the polypropylene layer 41. Therefore, the horn 151 can be prevented from moving while attached to the polypropylene layer 41, and the ceramic separator 40 is not damaged.
- the polypropylene layer 41 is supported by the pair of holding plates 241 and 242. In a state where they are held together, they can be separated from the polypropylene layer 41. Therefore, the anvil 154 can be prevented from moving while attached to the polypropylene layer 41, and the ceramic separator 40 is not damaged.
- the present invention can be modified in various ways based on the configurations described in the claims, and these are also within the scope of the present invention.
- the direction in which the ultrasonic wave is propagated to the ceramic separator 40 may be a direction along the bonding surface of the ceramic layers 42 intersecting with the stacking direction Z, and the conveyance direction X and the direction Y intersecting the stacking direction Z There is no particular limitation as long as it is within the plane.
- the structure is described in which the facing polypropylene layers 41 are joined by partially moving the ceramic layers 42 of the pair of ceramic separators 40 to the surrounding area and roughening them.
- the packaged electrode 11 used for the lithium ion secondary battery 10 although demonstrated with the structure which joins a pair of ceramic separator 40 mutually, it is limited to such a structure. Absent. The present invention can also be applied to joining members other than the packaged electrode 11 used in the lithium ion secondary battery 10.
- the secondary battery has been described with the configuration of the lithium ion secondary battery 10, but the configuration is not limited to such a configuration.
- the secondary battery can be configured as, for example, a polymer lithium battery, a nickel-hydrogen battery, or a nickel-cadmium battery.
- the heat-resistant material of the ceramic separator 40 has been described with the configuration of the ceramic layer 42, but is not limited to such a configuration.
- the heat-resistant material is not limited to ceramics and may be a member having a melting temperature higher than that of the molten material.
- the melting material of the ceramic separator 40 has been described with the configuration of the polypropylene layer 41.
- the configuration is not limited to such a configuration.
- the molten material is not limited to polypropylene and may be a member having a melting temperature lower than that of the heat-resistant material.
- the ceramic separator 40 has been described as having a structure in which a heat-resistant material (ceramic layer 42) is laminated on one side of a molten material (polypropylene layer 41), but is not limited to such a configuration.
- the ceramic separator 40 may be configured by laminating a heat-resistant material (ceramic layer 42) on both surfaces of a molten material (polypropylene layer 41).
- the positive electrode 20 is packed with the pair of ceramic separators 40 to form the packed electrode 11.
- the present invention is not limited to such a configuration.
- the negative electrode 30 may be packed with a pair of ceramic separators 40 to form a packed electrode. Furthermore, it is good also as a structure which inserts the positive electrode 20 or the negative electrode 30 after joining a pair of ceramic separator 40 mutually, and forms a packing electrode.
- the horn 151 and the anvil 154 provided with the protrusions are used to describe spot welding at both ends of the pair of ceramic separators 40.
- the present invention is not limited to such a configuration. It is good also as a structure which operates the horn 151 provided with the projection part, and the anvil 154 so that a junction part may continue, and seam welds the both ends of a pair of ceramic separator 40.
- the projection 151b of the horn 151 and the projection 154b of the anvil 154 are described as being pressed while sandwiching the pair of ceramic separators 40, but the present invention is not limited to such a configuration. What is necessary is just to provide the projection part in any one of the horn 151 or the anvil 154.
- FIG. the pair of ceramic separators 40 may be pressed while being held between the protrusion 151b of the horn 151 and the flat portion of the main body 154a of the anvil 154.
- the screws constituting the fastening portion between the horn 151 and the booster 152 arranged in pairs near the edge of the separator 40 in the transport direction X in FIG. Although described, it is not limited to this.
- the fastening portion of the horn 151 and the booster 152 disposed near one edge and the other edge of the separator 40 reverses the rotation direction of the screws, and the tightening direction of each screw applies the horn 151 to the separator 40.
- loosening of the fastening portion between both the left and right horns 151 and the booster 152 can be prevented.
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Abstract
Description
セパレータ接合装置100によって接合して形成する電気デバイスは、図1~図4に示すように、例えばリチウムイオン二次電池10の袋詰電極11に相当する。リチウムイオン二次電池10は、充放電が行われる発電要素12を外装材50で封止して構成している。発電要素12は、正極20を一対のセラミックセパレータ40で挟持して接合した袋詰電極11と、負極30とを交互に積層して構成している。
次に、電気デバイス(リチウムイオン二次電池10の袋詰電極11に相当)のセパレータ接合方法を具現化したセパレータ接合装置100の各構成部材(電極搬送部110、第1セパレータ搬送部120、第2セパレータ搬送部130、セパレータ保持部140、セパレータ接合部150、セパレータ搬送追随部160、袋詰電極搬送部170、および制御部180)について、図5A~図12を参照しながら順に説明する。
電極搬送部110は、図5A、図5Bに示し、長尺状の正極用基材20Aから正極20を切り出して搬送する。
第1セパレータ搬送部120は、図5A、図5Bに示し、セラミックセパレータ用基材40Aから、正極20の一面(積層方向Zに沿った図5A中に示す上方)に積層するためのセラミックセパレータ40を切り出して搬送する。
セパレータ保持部140は、図5Aおよび図6に示し、正極20を挟持して積層した一対のセラミックセパレータ40を保持する。
セパレータ接合部150は、図5A~図12に関連し、正極20を挟持するように積層したセラミックセパレータ40同士を超音波による摩擦熱によって加熱させて接合する。
次に、セパレータ接合部150の動作と共にホーンの様々な構成について、図12を参照しながら説明する。
セパレータ搬送追随部160は、図5Aおよび図6に示し、セパレータ接合部150がセラミックセパレータ40同士を接合している間、袋詰電極搬送部170の搬送に追随してセパレータ接合部150等を移動させる。
袋詰電極搬送部170は、図5Aおよび図6に示し、セパレータ接合部150によって形成される袋詰電極11を搬送する。
制御部180は、図5Aに示し、電極搬送部110と第1セパレータ搬送部120と第2セパレータ搬送部130とセパレータ保持部140とセパレータ接合部150とセパレータ搬送追随部160および袋詰電極搬送部170の作動をそれぞれ制御する。
次に、セパレータ接合装置100の作用について説明する。
上述した第1実施形態によれば、以下の構成によって作用効果を奏する。
第1実施形態の変形例に係る袋詰電極11のセパレータ接合方法を具現化したセパレータ接合装置について、図13および図14を参照しながら説明する。
第1実施形態の変形例においては、前述した第1実施形態と同様の構成からなるものについて、同一の符号を使用し、前述した説明を省略する。
先ず、セパレータ保持部240の構成について、図13を参照しながら説明する。
次に、セパレータ保持部240の作用について、図14を参照しながら説明する。
なお、本発明は、特許請求の範囲に記載された構成に基づき様々な改変が可能であり、それらについても本発明の範疇である。
11,13 袋詰電極(電気デバイス)、
12 発電要素、
20 正極(電極)、
20A 正極用基材、
21 正極集電体、
21a 正極電極端子、
22 正極活物質、
30 負極(電極)、
31 負極集電体、
31a 負極電極端子、
32 負極活物質、
40 セラミックセパレータ(セパレータ)、
40A セラミックセパレータ用基材、
40h,40i 接合部、
41 ポリプロピレン層、
42 セラミックス層、
50 外装材、
51,52 ラミネートシート、
100 セパレータ接合装置、
110 電極搬送部、
111 電極供給ローラ(搬送部材)、
112 搬送ローラ、
113 搬送ベルト、
114 回転ローラ、
115,116 切断刃、
117 受け台、
118,126,136 支持部材、
120 第1セパレータ搬送部(セパレータ搬送部)、
121 第1セパレータ供給ローラ(搬送部材)、
122 第1加圧ローラ、
123 第1ニップローラ、
124 第1搬送ドラム、
125 第1切断刃、
130 第2セパレータ搬送部(セパレータ搬送部)、
131 第2セパレータ供給ローラ(搬送部材)、
132 第2加圧ローラ、
133 第2ニップローラ、
134 第2搬送ドラム、
135 第2切断刃、
140,240 セパレータ保持部(超音波接合部)、
141,241,242 保持プレート、
150,350 セパレータ接合部(超音波接合部)、
151,151c,191,192,351 ホーン(当接部)、
151a,151d,191a,192a 本体部、
151b,151b1,151b2,151b3,151b4,151e,191b,192b 突起部(接触部)、
152 ブースタ(増幅部)、
153 振動子(発信部)、
154,354 アンビル、
154a 本体部、
154b 突起部、
155 押圧部材(保持部)、
155a 当接部材、
156,356 付勢部材、
157 駆動ステージ、
158 駆動支柱、
160 セパレータ搬送追随部、
161 X軸ステージ、
170 袋詰電極搬送部、
171 搬送ベルト、
172 回転ローラ、
173 吸着パッド、
174 伸縮部材、
175 X軸ステージ、
176 X軸補助レール、
177 載置台、
180 制御部、
181 コントローラ、
190 壁面、
X 搬送方向、
Y (搬送方向Xと交差する)方向、
Z 積層方向、
R ホーンの回転方向。
Claims (9)
- 電極を挟持する一対のセパレータを互いに接合する電気デバイスのセパレータ接合装置であって、
超音波振動を発生させる発信部と、
発生した振動を増幅させる増幅部と、
増幅した振動をセパレータに与えて前記一対のセパレータを接合する当接部と、
前記当接部によって前記一対のセパレータを接合する接合位置に前記一対のセパレータを搬送するセパレータ搬送部と、を備え、
前記発信部、前記増幅部、および前記当接部を、前記セパレータの搬送方向に平行、かつ、前記セパレータの面と直交する面に並べる、
または、前記発信部および前記増幅部を、前記セパレータの搬送方向と平行な方向から見て前記当接部よりも前記セパレータの幅方向中央に寄せて並べることを特徴とする電気デバイスのセパレータ接合装置。 - 前記当接部は、前記セパレータと接触する接触部を複数有し、前記当接部及び前記発信部の並ぶ方向と平行な回転軸を中心に回転可能である請求項1に記載の電気デバイスのセパレータ接合装置。
- 前記当接部を保持する保持部をさらに有し、
前記当接部は、前記セパレータの搬送方向において前記保持部よりも前記一対のセパレータを重ね合わせる位置に接近して配置している請求項1または2に記載の電気デバイスのセパレータ接合装置。 - 前記当接部は、前記セパレータと接触する接触部と、前記接触部を設置する本体部と、を有し、
前記接触部を前記本体部において前記セパレータの搬送方向と交差する方向の端部に配置したことを特徴とする請求項1または3に記載の電気デバイスのセパレータ接合装置。 - 前記接触部は、前記本体部に複数設置され、使用する前記接触部を交換可能に構成した請求項4に記載の電気デバイスのセパレータ接合装置。
- 前記本体部は回転可能に構成され、
前記接触部は、前記本体部の回転によって前記一対のセパレータと接触する前記接触部の交換が行われる請求項5に記載の電気デバイスのセパレータ接合装置。 - 前記当接部を保持する保持部をさらに有し、
前記保持部は、前記当接部に対して突出および退避が自在な当接部材を備え、
前記保持部から前記当接部材を前記当接部に接触させるか接触させないか切り替えることによって前記本体部の回転および固定を切り替える請求項6に記載の電気デバイスのセパレータ接合装置。 - 前記増幅部と前記当接部とはねじによって締結され、前記電極の搬送方向に対になって配置され、一方の前記増幅部、前記当接部と他方の前記増幅部、前記当接部のねじの締まり方向が同じである請求項1から7のいずれか1項に記載の電気デバイスのセパレータ接合装置。
- 前記増幅部と前記当接部とはねじによって締結され、前記電極の搬送方向に対になって配置され、一方の前記増幅部、前記当接部と他方の前記増幅部、前記当接部のねじの締まり方向が異なる請求項1から7のいずれか1項に記載の電気デバイスのセパレータ接合装置。
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