EP3604164B1 - Verpackungsabdeckung, verpackter artikel und verpackungsverfahren - Google Patents

Verpackungsabdeckung, verpackter artikel und verpackungsverfahren Download PDF

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Publication number
EP3604164B1
EP3604164B1 EP18775837.0A EP18775837A EP3604164B1 EP 3604164 B1 EP3604164 B1 EP 3604164B1 EP 18775837 A EP18775837 A EP 18775837A EP 3604164 B1 EP3604164 B1 EP 3604164B1
Authority
EP
European Patent Office
Prior art keywords
opening
container
wrapping cover
sheet
package
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18775837.0A
Other languages
English (en)
French (fr)
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EP3604164A4 (de
EP3604164A1 (de
Inventor
Naoki Yoshida
Kenji Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zeon Corp
Original Assignee
Zeon Corp
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Publication date
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Publication of EP3604164A1 publication Critical patent/EP3604164A1/de
Publication of EP3604164A4 publication Critical patent/EP3604164A4/de
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Publication of EP3604164B1 publication Critical patent/EP3604164B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/04—Wrappers or flexible covers non-rectangular
    • B65D65/08—Wrappers or flexible covers non-rectangular with fastening elements, e.g. slide fasteners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/38—Details or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/04—Wrappers or flexible covers non-rectangular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00736—Details
    • B65D2519/0086—Protection against environmental hazards, e.g. humidity, bacteria, fire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of packaging materials of special type or form

Definitions

  • the present invention relates to a package of a liquid battery material, as set out in claim 1, and a method for packaging a liquid battery material, as set out in claim 6.
  • IBC intermediate bulk container
  • Some of materials used for producing batteries such as secondary batteries are stored and transported in a liquid state.
  • an object of the present invention is to provide a device that can prevent deterioration in the performance of a liquid battery material in the storage and transportation of the liquid battery material, and a package and a packaging method that enable storage and transportation of a liquid battery material while preventing deterioration in the performance of the liquid battery material.
  • the present inventor has made studies to solve the aforementioned problem. Consequently, the present inventor has conceived of adopting a wrapping cover that is used for packaging contents for a container that is in operation of storage and transportation of a liquid battery material. The present inventor has also found that using a wrapping cover having a specific feature as the aforementioned wrapping cover can solve the aforementioned problem. The present invention has been made in view of such finding.
  • the present invention provides a device that can prevent deterioration in the performance of a liquid battery material in the storage and transportation of the liquid battery material, and a package and a packaging method that enable storage and transportation of a liquid battery material while preventing deterioration in the performance of the liquid battery material.
  • the wrapping cover of the present invention is a wrapping cover for packaging a liquid battery material.
  • the liquid battery material may include a variety of materials used in batteries such as a binder and a slurry used for producing an electrode and a porous separator, and an electrolytic solution, and liquid raw materials used for preparing these materials.
  • the liquid battery material is a binder used for producing an electrode and a porous separator. It is particularly preferable to apply the present invention to a binder since the contamination of a small amount of impurities and a slight property change in the binder greatly influence the performance of the resultant battery.
  • the wrapping cover of the present invention includes a specific bag-shaped sheet and a fastening member.
  • the package of the present invention includes a liquid battery material, a container that contains the liquid battery material, and the wrapping cover of the present invention for enclosing the outer surface of the container.
  • FIG. 1 is a perspective view schematically showing the wrapping cover of the present invention and the package of the present invention that uses the wrapping cover and is packaged by a packaging method of the present invention.
  • FIG. 2 is a vertical cross-sectional view of the package shown in FIG. 1 .
  • a package 100 includes: a container 120; a liquid battery material 130 contained in the container 120; a pallet 110, which is an optional component for supporting the container 120; and a wrapping cover 150 for enclosing the outer surfaces of the container 120 and the pallet 110.
  • the container 120 is a hollow container and is capable of storing and transporting the liquid battery material 130 while keeping the material in a hermetically sealed manner.
  • the pallet 110 supports the container 120 on an upper surface 110U thereof.
  • the wrapping cover of the present invention includes a bag-shaped sheet.
  • the bag-shaped sheet is formed by a specific sheet.
  • the sheet includes a resin layer.
  • resins suitable for the use of wrapping materials may be appropriately selected. Specifically, it may be a resin containing a polymer such as polyethylene, polypropylene, polyethylene terephthalate, vinyl chloride, polyamide, or polyetherimide.
  • polyethylene is preferable from the viewpoint of flexibility and durability against breakage.
  • polyethylene high density polyethylene is particularly preferable from the viewpoint of flexibility and durability against breakage.
  • the resin layer in the sheet may be a film-shaped layer, or may be a layer of any other shape.
  • non-film-shaped layers may include woven fabric shape and non-woven fabric shapes. Woven and non-woven fabric resin layers are preferable because they provide high strength in addition to flexibility. In particular, high density polyethylene woven fabric is preferable because high durability can be obtained.
  • examples of the molding method therefor may include a melt extrusion molding method, a solution casting molding method, and a calendar molding method.
  • the resin layer of the woven fabric may be obtained by weaving a narrow tape-shaped polyethylene films so that the films cross lengthwise and crosswise or diagonally.
  • the resin constituting the resin layer may contain an optional component in addition to the polymer.
  • the resin may include a conductive material in addition to the polymer.
  • a conductive material By including a conductive material, the surface resistance of the sheet can be reduced.
  • conductive materials may include a carbon material such as carbon black, an ionic conductive agent comprising an inorganic ionic substance such as lithium perchlorate, sodium perchlorate, calcium perchlorate or lithium chloride, and an organic ionic substance represented by modified aliphatic dimethylethyl ammonium acetate, lauryl ammonium acetate, octadecyltrimethylammonium perchlorate, etc., and quaternary ammonium salts such as tetrabutylammonium chloride (bromide), hexadecyltrimethylammonium chloride (bromide), etc., and an ionic antistatic agent such as a cationic surfactant, an anionic surfact
  • the sheet may include any other optional layer in addition to the resin layer.
  • the sheet may include a thin metal film layer.
  • a thin metal film layer having an ability to reflect light such as infrared light, visible light, and ultraviolet light and having a high ability to reflect heat radiation.
  • the sheet may include only a single thin metal film layer.
  • the sheet may include two or more thin metal film layers.
  • the thin metal film layers may be provided only on one side of the resin layer or on both sides of the resin layer. Provision of the plurality of thin metal film layers can reduce the surface resistance value of the sheet, and provision of the thin metal film layers on both sides of the resin layer can especially reduce the surface resistance value of the sheet.
  • provision of the thin metal film layer inside the resin layer can prevent the generation of metallic powders from the sheet since no metallic layers are present on the surfaces of the sheet.
  • Examples of the method for forming a thin metal film layer on a surface of a resin layer may include a method in which a resin layer is bonded to a metal sheet that has been separately produced, a method in which a metal is vapor-deposited on a surface of a resin layer, and a combination of these methods.
  • the film thickness of the sheet is preferably 50 ⁇ m or more, more preferably 80 ⁇ m or more, and still more preferably 100 ⁇ m or more, and the upper limit value thereof is preferably 900 ⁇ m or less, more preferably 500 ⁇ m or less, and still more preferably 200 ⁇ m or less.
  • the sheet has a small surface resistance value.
  • the surface resistance value of the sheet is preferably 10 11 ⁇ /sq. or less, more preferably 10 10 ⁇ /sq. or less, still more preferably 10 9 ⁇ /sq. or less, and most preferably 10 2 ⁇ /sq. or less.
  • electrostatic charging of the wrapping cover can be suppressed.
  • attachment of minute foreign matters from the surrounding environment to the wrapping cover can be reduced when the wrapping cover is used. This can prevent the contamination of the liquid battery material in a particularly effective manner when the wrapping cover is removed and the liquid battery material is drained.
  • the lower limit of the surface resistance value of the sheet is not particularly limited, and may be 0.01 ⁇ /sq. or more, for example.
  • the bag-shaped sheet has a shape of a bag with an opening.
  • the bag-shaped sheet further includes a contracting portion provided around the opening.
  • the wrapping cover of the present invention includes a fastening member provided along the opening so as to be capable of adjusting the size of the opening of the bag-shaped sheet.
  • the wrapping cover 150 includes a bag portion 151 having a bag shape, and a contracting portion 152 provided around the opening of the bag portion 151.
  • the contracting portion 152 has a strip-shape inner cavity 154.
  • the wrapping cover 150 further includes a fastening member 153 passed through the inner cavity 154.
  • the fastening member of the wrapping cover of the present invention is provided so as to be capable of adjusting the size of the opening.
  • the fastening member 153 is provided in the inner cavity 154.
  • the size of the opening can be adjusted by changing the size of the fastening member in the inner cavity 154.
  • the fastening member has an elastic property.
  • the fastening member may have a property with which the application of a load in the length direction can cause 10% or more reversible length extension from a state without any load.
  • the material that constitutes the fastening member is preferably rubber, or a composite material composed of rubber and any other material.
  • the material that constitutes the fastening member is not limited thereto, and resins with no elastic property, and any other materials generally used as materials for strings may be used.
  • the shape of the fastening member may be an elongated shape extendable around the opening.
  • the shape of a cross-section cut along a plane perpendicular to the lengthwise direction of the fastening member is not limited to any particular shape.
  • the fastening member may be a band having a flat cross-section, or a string having a cross-sectional shape such as a circle, an oval, or a rectangle.
  • the fastening member is a band, such a fastening member is particularly preferable since the opening can be tightly closed at the contracting portion.
  • the fastening member may be a rubber band.
  • the container in the package of the present invention is not particularly limited to any shape and any material as long as the container can contain and seal the liquid battery material therein.
  • the container may preferably include: a main body integrally molded of a resin; a liquid injection opening (not shown) disposed at the top and capable of being tightly closed by a cap; and a discharge valve (not shown) at the bottom of the container.
  • a 10-liter container, a 20-liter container, a 200-liter drum, a 1000-liter container, or the like may be used.
  • the package of the present invention may further include an optional element.
  • an optional element may include accessories of the container such as a pallet and a cage.
  • the wrapping cover may be positioned either inside or outside the cage. From the viewpoint of facilitating the removal of the cover, the wrapping cover is preferably positioned outside the cage. From the viewpoint of increasing a container occupancy rate and from the viewpoint of preventing breakage in an upper portion of the wrapping cover, on the other hand, the wrapping cover may preferably be positioned inside the cage.
  • the wrapping cover encloses the outer surface of the container.
  • Such enclosure refers to enclosure covering at least an upper portion of the container, preferably the outer surface of the entire container, with the opening of the wrapping cover facing downward.
  • the wrapping cover 150 covers the outer surface of the entire container 120 and an upper portion of the pallet 110 with the opening thereof facing downward.
  • the opening of the contracting portion 152 of the wrapping cover 150 is closed by the fastening member 153, and the contracting portion 152 is in close contact with side surfaces 110S of the pallet 110.
  • the opening is closed at the contracting portion of the wrapping cover.
  • An operation of closing the opening may be performed by adjusting the size of the opening of the wrapping cover by the fastening member.
  • a member having an elastic property such as a rubber band
  • such adjustment may be performed by utilizing the contraction force of the fastening member.
  • a member having no elastic property such as a resin string
  • the fastening member may be provided with the both ends thereof extending to the outside of the inner cavity of the contracting portion. By drawing and tying the ends of the string, the opening may be closed.
  • a ratio ((B/A) ⁇ 100%) of an enclosed content volume (B) with respect to a wrapping cover volume (A) in an area enclosed by the wrapping cover falls within a particular range.
  • Such a ratio ((B/A) ⁇ 100%) may be referred to as a "container occupancy rate" in the present application.
  • the container occupancy rate is preferably 60% or more, more preferably 65% or more, and still more preferably 70% or more, and is preferably 95% or less, more preferably 93% or less, and still more preferably 90% or less.
  • the wrapping cover volume (A) refers to the volume of a wrapping cover in a package. In the example of FIG. 2 , the wrapping cover volume (A) refers to the volume of the wrapping cover in an area above the lower end of the opening of the wrapping cover, which is indicated by a line L1.
  • the enclosed content volume (B) refers to the volume of an enclosed container and other contents in an area wrapped by the wrapping cover. In the example of FIG.
  • the enclosed content volume (B) refers to the volume of a portion occupied by the outer surfaces of the container 120 and the pallet 110 in the area above the lower end of the opening of the wrapping cover, which is indicated by the line L1.
  • a difference between the volume (A) and the volume (B) corresponds to the volume of a void 155.
  • the container occupancy rate is equal to or more than the aforementioned lower limit, the amount of minute foreign matters that stay in the void inside the wrapping cover can be reduced. Thus, deterioration in the performance of the liquid battery material in the storage and transportation of the liquid battery material can be prevented in a particularly effective manner.
  • the container occupancy rate is equal to or less than the aforementioned upper limit, breakage of the wrapping cover can be prevented.
  • the liquid battery material can be stored and transported with suppressed deterioration in the performance of the liquid battery material.
  • minute foreign matters that are floating in a space can be prevented from attaching to the outer surface of the container during the storage and the transportation.
  • Such foreign matters tend to accumulate mostly on the upper surface of the container.
  • the attachment of the foreign matters can be effectively prevented by providing enclosure covering at least the upper portion of the container with the opening of the wrapping cover facing downward.
  • the sheet includes a thin metal film layer, in particular, a property change in the liquid battery material during the storage and the transportation can also be prevented. Thus, this is especially advantageous in the prevention of deterioration in the performance of the liquid battery material.
  • the foreign matters attached to the wrapping cover can be easily removed by removing the wrapping cover from the package.
  • An operation of draining the liquid battery material out of the container for use is usually performed in a clean room.
  • Contents to be carried into the clean room are usually subjected to a dust removal treatment at a pre-chamber of a clean room.
  • the removal of the wrapping cover from the package may be performed as a part of the dust removal treatment at the pre-chamber of the clean room.
  • any treatment such as dust removal by air blow may be additionally performed.
  • the liquid battery material is drained from the interior to the exterior of the container by an operation such as opening the valve of the container, and the liquid battery material can be used for producing batteries.
  • Use of the liquid battery material in this manner can effectively prevent foreign matters from mixing into the liquid battery material as impurities.
  • Each sample (a multilayer sheet) was cut out to have an area of 100 mm square or more, and the surface resistivity ( ⁇ /sq.) of a surface resin layer was measured with a surface resistance meter (for a surface resistance value of 10 5 ⁇ /sq. or more, main body: Model-152 and probe: 152P-CR manufactured by Treck Japan KK; for a surface resistance value of less than 10 5 ⁇ /sq., Loresta-GP MCD-T610 manufactured by Mitsubishi Chemical Corporation).
  • the measurement environment was at a temperature of 23 ⁇ 5°C and at a humidity of 55 ⁇ 10%.
  • laminated cell lithium ion secondary batteries were produced and evaluated. Specific procedure thereof is as follows.
  • a planetary mixer 90 parts of natural graphite as a negative-electrode active material formed by carbon, 10 parts of SiOx as a negative-electrode active material containing silicon, 1 part in terms of a solid content of the test binder, and 1 part in terms of a solid content of a 1% aqueous solution (the viscosity measured with a B-type viscometer at 25°C was 7800 mPa ⁇ s) of high-molecular-weight carboxymethyl cellulose ("MAC800LC" produced by Nippon Paper Chemicals Co., Ltd.) as a water-soluble polymer were placed, and thereto ion-exchange water into the planetary mixer was further added so as to adjust the total solid content concentration to 52%. The materials were mixed to thereby prepare a negative-electrode slurry composition.
  • MAC800LC high-molecular-weight carboxymethyl cellulose
  • the aforementioned negative-electrode slurry composition was applied onto a copper foil with a thickness of 20 ⁇ m, which is a current collector, by a comma coater.
  • the application amount of the negative-electrode slurry composition at this time was set so that the solid content of the negative-electrode slurry composition per a unit area of a surface of the copper foil was 11 mg/cm 2 to 12 mg/cm 2 .
  • the applied negative-electrode slurry composition was dried to form a negative-electrode active material layer on the surface of the copper foil. The drying was performed by conveying the copper foil at a speed of 0.5 m/min in an oven at 60°C over 2 minutes.
  • the copper foil was subjected to a heating treatment at 120°C for 2 minutes to obtain a negative electrode primary product.
  • This primary product was subjected to pressing by a roll press machine so that the density of the negative-electrode active material layer in the negative electrode became 1.50 g/cm 3 to 1.60 g/cm 3 . In this manner, the negative electrode was produced.
  • LiCoO 2 as a positive-electrode active material
  • 2 parts of acetylene black ("HS-100” produced by Denki Kagaku Kogyo K.K.) as an electroconductive material
  • 2 parts of polyvinylidene fluoride PVDF; "KF-1100” produced by Kureha Corporation
  • 2-methylpyrrolidone was further added so as to adjust the total solid content concentration to 67%.
  • the materials were mixed to thereby prepare a positive-electrode slurry composition.
  • the positive-electrode slurry composition was applied onto an aluminum foil with a thickness of 20 ⁇ m, which is a current collector, by a comma coater.
  • the application amount of the positive-electrode slurry composition at this time was set so that the solid content of the positive-electrode slurry composition per a unit area of a surface of the aluminum foil was 30 mg/cm 2 .
  • the applied positive-electrode slurry composition was dried to form a positive-electrode active material layer on the surface of the aluminum foil. The drying was performed by conveying the aluminum foil at a speed of 0.5 m/min in the oven at 60°C for over 2 minutes.
  • the aluminum foil was subjected to a heating treatment at 120°C for 2 minutes to obtain a positive electrode primary product.
  • This primary product was dried, and then subjected to pressing by a roll press machine so that the density of the positive-electrode active material layer in the positive electrode became 3.45 g/cm 3 to 3.54 g/cm 3 after being pressed. In this manner, the positive electrode was obtained.
  • a single-layer polypropylene separator (a width of 65 mm, a length of 500 mm, and a thickness of 25 ⁇ m; produced by a dry method; a porosity of 55%) was prepared. This separator was cut out into a square of 5 ⁇ 5 cm 2 .
  • an outer covering of an aluminum wrapping material was prepared as an outer covering of a battery.
  • the aforementioned positive electrode was cut out into a square of 4 ⁇ 4 cm 2 , and the cut-out positive electrode was disposed in such a manner that a surface thereof on the current collector side was in contact with the outer covering of the aluminum wrapping material.
  • the square separator produced as described above was disposed on a surface of the positive-electrode active material layer of the positive electrode.
  • the aforementioned negative electrode was cut out into a square of 4.2 ⁇ 4.2 cm 2 , and the cut-out negative electrode was disposed on the separator in such a manner that a surface thereof on the negative-electrode active material layer side faces the separator.
  • a multilayer sheet was prepared.
  • the multilayer sheet had resin layers as both surface layers thereof, and had a thin aluminum film layer as an inner layer.
  • the resin layer was a layer containing carbon black and polyethylene, and was made by kneading 7 parts by weight of carbon black relative to 100 parts by weight of a resin.
  • the surface resistance value of this multilayer sheet was 10 5 ⁇ /sq.
  • the thickness of this multilayer sheet was 600 ⁇ m.
  • An 8-cord rubber band (manufactured by Kabushiki Kaisha Kitani) made of natural rubber was prepared as a fastening member.
  • the multilayer sheet prepared in (1-1) was formed into a bag shape to obtain a bag-shaped sheet having the shape schematically shown in FIGS. 1 and 2 .
  • the bag-shaped sheet had a bag portion (indicated by the reference numeral 151 in FIG. 2 ) and a contracting portion (indicated by the reference numeral 152 in FIG. 2 ) provided around an opening and having a strip-shape inner cavity. Furthermore, the fastening member was provided by being passed through the inner cavity of the contracting portion. In this manner, a wrapping cover was obtained.
  • BM-400B As a battery binder, BM-400B (ZEON Corporation) was prepared.
  • a 1 m 3 container (trade name: "San bulk", intermediate bulk container, manufactured by Sanko Co., Ltd.) was filled with 1000 kg of the battery binder prepared in (1-3).
  • the container having the battery binder therein was placed on a pallet dedicated for this container and having a width and a length each of which is larger than that of the container by 6%.
  • the entire container and a part of the pallet were enclosed by the wrapping cover obtained in (1-2), and the opening was closed through the use of the force of contraction of the fastening member.
  • the opening was closed, the wrapping cover was brought into close contact with the container, to thereby reduce its container occupancy rate. In this manner, a package in a state schematically shown in FIGS. 1 and 2 was obtained.
  • the container occupancy rate in the obtained package was 89%.
  • the package obtained in (1-4) was placed in a room for storing packages.
  • the room was filled with copper powder, of which 65% by weight of total particles had particle diameters falling within a range of 45 to 150 ⁇ m, and an air current was generated.
  • the package Under the conditions of a copper powder concentration of 5,000 mg/m 3 , a temperature of 60°C, and a wind speed of 5 m/sec, the package was stored for 8 hours.
  • the package was transferred to a pre-chamber of a clean room, and the wrapping cover was removed from the package. After that, the container was transferred into a clean room.
  • the valve at the bottom of the container was opened to drain the total volume of the battery binder, and the drained battery binder was dropped, under its own weight, into a container having an opening in an upper part thereof.
  • the battery binder in this container was used as a test binder to evaluate the filtration property and the high-temperature cycle property.
  • a multilayer sheet was prepared.
  • the multilayer sheet had resin layers as both surface layers thereof, and had a thin aluminum film layer as an inner layer.
  • the resin layer was a layer containing polyethylene.
  • the surface resistance value of this sheet was 10 9 ⁇ /sq.
  • the thickness of this multilayer sheet was 500 ⁇ m.
  • a wrapping cover and a package were obtained and evaluated by the same manner as those of (1-2) to (1-6) of Example 1 except that the multilayer sheet obtained in (2-1) was used instead of the multilayer sheet obtained in (1-1) .
  • a wrapping cover and a package were obtained and evaluated by the same manner as those of Example 1 except for the following changes.
  • a wrapping cover and a package were obtained and evaluated by the same manner as those of Example 1 except for the following changes.
  • a resin sheet was prepared.
  • the resin sheet was a sheet formed of polyethylene terephthalate.
  • the surface resistance value of this resin sheet was 10 9 ⁇ /sq.
  • the thickness of this resin sheet was 500 ⁇ m.
  • a wrapping cover and a package were obtained and evaluated by the same manner as those of (1-2) to (1-6) of Example 1 except that the resin sheet obtained in (5-1) was used instead of the multilayer sheet obtained in (1-1).
  • a resin sheet was prepared, which is composed of five layers of an aluminum foil of 7 ⁇ m/ a polyethylene film layer of 30 ⁇ m/ a high-density polyethylene sheet woven fabric of 60 ⁇ m/ a polyethylene film layer of 30 ⁇ m/ an aluminum-deposited film of 12 ⁇ m.
  • the surface resistance value of this resin sheet was 10 2 ⁇ /sq.
  • the thickness of this resin sheet was 140 ⁇ m.
  • a wrapping cover and a package were obtained and evaluated by the same manner as those of (1-2) to (1-6) of Example 1 except that, instead of the multilayer sheet obtained in (1-1), the resin sheet obtained in (6-1) was used with the aluminum foil side thereof facing outward.
  • a container on a pallet was stored for 8 hours by the same manner as those of (1-3) to (1-5) of Example 1 except that the container having the battery binder therein and the pallet were placed in the room for storing packages as they were without using the wrapping cover and without packaging the container and the pallet.
  • the pallet and the container were transferred to the pre-chamber of the clean room. Copper powders accumulated on the container were removed by air blow. After that, the container was transferred into the clean room. The valve at the bottom of the container was opened to drop the total volume of the battery binder in the container, under its own weight, into a container having an opening in an upper part thereof. The battery binder in this container was used as a test binder to evaluate the filtration property and the high-temperature cycle property.
  • a resin sheet was prepared.
  • the resin sheet was a sheet formed of polyethylene.
  • the surface resistance value of this resin sheet was 10 9 ⁇ /sq.
  • the thickness of this resin sheet was 500 ⁇ m.
  • the resin sheet prepared in (C2-1) was formed into a bag shape to obtain a bag-shaped sheet.
  • the shape and size of the bag-shaped sheet were the same as those obtained in Example 1.
  • the resulting bag-shaped sheet was used as the wrapping cover without any fastening member provided thereto.
  • a package was obtained and evaluated by the same manner as those of (1-3) to (1-6) of Example 1 except for the following changes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Wrappers (AREA)

Claims (6)

  1. Eine Verpackung (100) eines flüssigen Batteriematerials (130), die folgendes umfasst:
    ein flüssiges Batteriematerial (130);
    einen Behälter (120), der das flüssige Batteriematerial (130) enthält; und
    eine Umhüllungsabdeckung (150), die eine Außenfläche des Behälters (120) umschließt, wobei
    die Umhüllungsabdeckung (150) eine beutelförmige Folie umfasst, die aus einer Folie mit einer Harzschicht besteht und die Form eines Beutels mit einer Öffnung hat,
    der Oberflächenwiderstand der Platte beträgt 1011 Ω/qm oder weniger,
    die beutelförmige Folie einen sich zusammenziehenden Abschnitt (152)
    aufweist, der um die Öffnung herum vorgesehen ist, um die Größe der Öffnung anpassen zu können,
    die Umhüllungsabdeckung (150) außerdem ein Befestigungselement (153) umfasst, das entlang der Öffnung vorgesehen ist, um die Größe der Öffnung einstellen zu können,
    das Umschließen in einer Weise erfolgt, dass eine Außenfläche an mindestens einem oberen Abschnitt des Behälters (120) bedeckt wird, wobei die Öffnung der Umhüllungsabdeckung (150) nach unten weist, und
    die Öffnung ist an dem sich zusammenziehenden Abschnitt (152) geschlossen.
  2. Verpackung (100) nach Anspruch 1, wobei das Befestigungselement (153) eine elastische Eigenschaft aufweist.
  3. Verpackung (100) nach Anspruch 1 oder 2, wobei die Harzschicht eine Schicht aus einem harzhaltigen Polyethylen ist.
  4. Verpackung (100) nach einem der Ansprüche 1 bis 3, wobei die Folie zusätzlich zu der Harzschicht eine dünne Metallfilmschicht enthält.
  5. Verpackung (100) nach einem der Ansprüche 1 bis 4, wobei das Verhältnis ((B/A)× 100%) eines eingeschlossenen Inhaltsvolumens (B) zum Volumen (A) der Umhüllung in einem von der Umhüllungsabdeckung (150) eingeschlossenen Bereich 60 bis 99% beträgt.
  6. Ein Verfahren zum Verpacken eines flüssigen Batteriematerials (130), umfassend:
    Aufbewahren des flüssige Batteriematerial (130) in einem Behälter (120);
    Umschließen des Behälters (120) mit einer Umhüllungsabdeckung (150), die eine beutelförmige Folie enthält, die aus einer Folie besteht, die eine Harzschicht enthält und die Form eines Beutels mit einer Öffnung hat, wobei die beutelförmige Folie einen sich zusammenziehenden Abschnitt (152) enthält, der um die Öffnung herum vorgesehen ist, um in der Lage zu sein, die Größe der Öffnung einzustellen, und wobei die Umhüllungsabdeckung (150) ferner ein Befestigungselement (153) enthält, das entlang der Öffnung vorgesehen ist, um in der Lage zu sein, die Größe der Öffnung einzustellen; und
    Einstellen der Größe der Öffnung der Umhüllungsabdeckung durch das Befestigungselement (153), um die Öffnung zu schließen, wobei
    der Oberflächenwiderstand der Platte 1011 Ω/qm oder weniger beträgt und
    das Umschließen in einer Weise erfolgt, dass eine Außenfläche an mindestens einem oberen Abschnitt des Behälters (120) abgedeckt wird, wobei die Öffnung der Umhüllungsabdeckung (150) nach unten weist.
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PCT/JP2018/009664 WO2018180452A1 (ja) 2017-03-28 2018-03-13 包装カバー、梱包物及び梱包方法

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JP2525677B2 (ja) 1989-10-04 1996-08-21 富士写真フイルム株式会社 薄膜剥離方法及び装置
JPH03147324A (ja) 1989-11-02 1991-06-24 Toshiba Corp 精密乾燥装置
JP3022338U (ja) * 1995-09-01 1996-03-22 アイセロ化学株式会社 梱包品包装用袋
JPH1044288A (ja) * 1996-08-05 1998-02-17 Iguchi Poriechiren Kk 電子部品用袋及びその製造方法
JP3641744B2 (ja) * 2001-05-31 2005-04-27 積水化成品工業株式会社 保護カバー
JP3120439U (ja) 2005-12-09 2006-04-06 あさひな株式会社 梱包装置
JP2008068913A (ja) 2006-09-15 2008-03-27 Kao Corp ガセット袋
JP3154380U (ja) * 2009-07-29 2009-10-15 株式会社プライムポリマー 屋外保護カバー
JP2016062741A (ja) * 2014-09-18 2016-04-25 不二雄 高田 室内空間部に漂う塵埃の静電気除去方法

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WO2018180452A1 (ja) 2018-10-04
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