WO2019027001A1 - 多層フィルムの製造方法 - Google Patents

多層フィルムの製造方法 Download PDF

Info

Publication number
WO2019027001A1
WO2019027001A1 PCT/JP2018/029037 JP2018029037W WO2019027001A1 WO 2019027001 A1 WO2019027001 A1 WO 2019027001A1 JP 2018029037 W JP2018029037 W JP 2018029037W WO 2019027001 A1 WO2019027001 A1 WO 2019027001A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
roll
multilayer film
coating liquid
raw
Prior art date
Application number
PCT/JP2018/029037
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
諭 中村
亮 石黒
共祐 片本
Original Assignee
株式会社日本製鋼所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日本製鋼所 filed Critical 株式会社日本製鋼所
Priority to CN202310575296.9A priority Critical patent/CN117080676A/zh
Priority to CN201880050293.0A priority patent/CN111033800A/zh
Publication of WO2019027001A1 publication Critical patent/WO2019027001A1/ja

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/443—Particulate material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/431—Inorganic material
    • H01M50/434—Ceramics
    • 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
    • H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a method of producing a multilayer film.
  • stretched films have been used for various products.
  • a stretched film made of a polyolefin-based material is used as a separator for a lithium ion battery (hereinafter referred to as "LIB").
  • LIB lithium ion battery
  • an organic material or an inorganic material may be disposed on the surface of the stretched film.
  • a coating liquid prepared by mixing ceramic fine particles such as alumina and silica, which are inorganic materials, and a solvent is applied to the surface of a stretched film, and then the solvent is dried, thereby comprising these fine particles on the surface of the stretched film.
  • the method of providing a film is used (refer patent document 1 and patent document 2).
  • membrane comprised from these resin materials on the surface of a stretched film is also used by apply
  • coating resin materials such as polyamide and a polyimide which are organic materials
  • Japan JP 2013-114751 Japan JP 2014-203680 gazette Japanese Patent Laid-Open Publication 2009-21265 Japanese Patent No. 4460028
  • micropores are formed due to the movement of lithium ions and the like.
  • the fine pores can be formed, for example, by mixing a solvent as a material of a stretched film, forming a film, and then extracting the solvent or the like (so-called wet method).
  • wet method extracting the solvent or the like
  • the solvent or the like is generally extracted to reopen the clogged micropores. After that, the stretched film is restretched. In this re-stretching, adjusting the size of the microporous is also performed.
  • fine particle layer a film (hereinafter, also referred to as “fine particle layer”) composed of various kinds of fine particles is disposed on a stretched film to improve the heat resistance described above, the viewpoint of downsizing of the manufacturing system, rationalization of manufacturing processes, etc. Therefore, it may be preferable to provide a fine particle layer on the stretched film at a time before the above-described re-stretching.
  • the fine particle layer is less likely to be deformed than the material constituting the stretched film, it is feared that cracking of the fine particle layer and peeling of the fine particle layer from the stretched film may occur in the re-stretching process.
  • the fine particle layer is provided on the stretched film before various stretching processes including re-stretching, there is a possibility that the fine particle layer can not be maintained in a properly fixed state on the stretched film.
  • One of the objects of the present invention is to provide a method for producing a multilayer film in which the fine particle layer can be properly fixed to the surface of the stretched film.
  • a method of producing a multilayer film is A method for producing a multilayer film, in which a fine particle layer composed of fine particles is provided on the surface of a porous film, Removing the porous forming material from a raw film comprising a resin material constituting the film and the porous forming material; A pair of first rolls abut on one surface of the raw film at two different positions in the carrying direction of the raw film after the removing step, and the pair of first rolls in the carrying direction A coating liquid containing the fine particles is applied to the raw film using the second roll while the second roll is in contact with the other surface of the raw film at a position sandwiched between , Coating process, A lateral stretching step of stretching the raw film in the width direction while maintaining the flowability of the coating liquid applied to the raw film; A fixing step of drying the coating liquid to fix the fine particle layer on the film to form the multilayer film; Equipped with In the applying step, the second roll presses the raw film along a predetermined pressing direction,
  • the coating liquid in the coating step, is applied to the raw film while the second roll presses the raw film.
  • the coating liquid is placed in a state in which the first roll and the second roll are disposed such that the above-described roll-to-roll angle is 0 ° or more and 150 ° or less. It has been revealed that the adhesion between the fine particles contained in the coating liquid and the raw film is remarkably improved by applying the raw film.
  • the transverse stretching step the raw film is stretched in the width direction in a state in which the coating liquid has fluidity (in other words, a state in which the coating liquid is not completely dried).
  • the coating liquid flows following the stretching of the raw film, so the final multilayer film is compared to the case in which the coating liquid is completely dried to form the fine particle layer and the transverse drawing is performed. Cracks, peeling, etc. of the fine particle layer provided on Therefore, according to the manufacturing method which concerns on a 1st side, microparticles
  • fine-particles can be fixed appropriately on the surface of a stretched film.
  • the transverse stretching step Including a preliminary step of preheating and a main step of stretching in the width direction under heating;
  • the preliminary drying amount which is the reduction amount of the coating liquid before and after the preliminary process in the preliminary process is 20 wt% or less,
  • the main drying amount which is the reduction amount of the coating liquid before and after the main step in the main step is 20 wt% or less.
  • the reduction amount of the coating liquid is set to 20 wt% or less. It has been clarified that the followability of the coating liquid to film stretching can be improved. Therefore, according to the manufacturing method which concerns on a 2nd side surface, microparticles
  • the preliminary step is Including a process of heating the raw film so that the amount of heat per unit area given to the raw film is 1.5 kW / h or less
  • the main process is The method includes heating the raw film so that the amount of heat per unit area given to the raw film is 1.2 kW / h or less.
  • the heat amount per unit area given to the raw film in the preliminary step is set to 1.5 kW / h or less, and the raw film is produced in this step It is clear that setting the amount of heat per unit area to be less than or equal to 1.2 kW / h given to can adjust the amount of decrease of the coating liquid as defined in the above-mentioned second aspect. Therefore, according to the manufacturing method which concerns on a 3rd side, microparticles
  • the application process is A process is included in which the ratio G / L of the rotational speed G of the second roll to the transport speed L of the raw film is greater than 0 and 10 or less.
  • the ratio G / L of the rotational speed G of the second roll to the transport speed L of the original film is set to a value larger than 0 and 10 or less.
  • the fixing step is A process of fixing the fine particle layer on the surface of the raw film is realized by gradually drying the coating liquid under heating while stretching the raw film in the transport direction.
  • the fine particle layer can be formed on the surface of the raw film. Accordingly, since the fine particle layer is not formed at the time of the lateral stretching step, cracking, peeling, and the like of the fine particle layer finally provided in the multilayer film are suppressed. Furthermore, the degree of micropore opening can be adjusted by stretching the raw film in the transport direction. Therefore, according to the manufacturing method which concerns on a 5th side, microparticles
  • fine-particles can be fixed appropriately on the surface of the stretched film which has a micropore of a desired opening degree.
  • the multilayer film is used as a lithium ion battery separator.
  • the method for producing a multilayer film according to any one of the first to fifth aspects described above can be applied to a method for producing a lithium ion battery separator having high industrial value.
  • the fine particles can be properly fixed to the surface of the stretched film.
  • FIG. 1 is a schematic block diagram showing a LIB separator manufacturing system according to the present invention.
  • Fig.2 (a) is a concrete block diagram of the in-line coater of FIG. 1
  • FIG.2 (b) and FIG.2 (c) are schematic which shows the roll angle specified by a gravure roll and a near roll.
  • FIG. 3 is a schematic configuration view showing an in-line adhesive coating method for BOPET in another form of FIG. 1.
  • FIG. 4 is a schematic configuration view showing an in-line ceramic coating method for a separator in another form of FIG. 1.
  • FIG. 5 is a block diagram of a demonstration device of a LIB separator manufacturing system according to the present invention.
  • FIG. 6 is a schematic block diagram showing the main part of the demonstration device of FIG. FIG.
  • FIG. 7 is an explanatory view showing a coating thickness adjusting condition in the in-line coater of FIG.
  • FIG. 8 is an explanatory view showing the transverse stretching / drying conditions for the in-line coater of FIG.
  • FIG. 9 is an explanatory view of a peel strength measurement test for the separator in the present invention.
  • FIG. 10 is a schematic block diagram showing a conventional off-line LIB separator manufacturing system.
  • FIG. 11 is a schematic block diagram showing a conventional off-line type off-line coater.
  • FIG. 10 The conventional system comprises the wet separator manufacturing system 1 of FIG. 10 and the off-line coater 8 of FIG.
  • the wet separator manufacturing system 1 includes an extruder 2, a cast roll 3, a longitudinal stretcher 4, a first horizontal stretcher 5, and an extractor 6 in order from the upstream side 9 to the downstream side 10.
  • An off-line coater 8 is provided on the downstream side 10 of the second horizontal stretching machine 7 or at another place.
  • the off-line coater 8 is not an in-line configuration that falls within the line of the wet separator manufacturing system 1 but is independent as an off-line configuration.
  • the specific configuration of the off-line coater 8 is shown in FIG.
  • the film 122 for a separator delivered from the unwinding part 121 is dried by the first, second and third dryers 123, 124 and 125 after the solution containing the ceramic fine particles is applied by the coater head 120. Thereafter, the separator 122A is wound by the winding unit 126.
  • the wet separator manufacturing system 1 has the extruder 2 on the upstream side 9.
  • the film 22 extruded from the die 2A of the extruder 2 toward the downstream side 10 is a raw film comprising a resin material constituting the film 22 and a porous forming material (for example, a solvent or the like).
  • the film 22 is stretched by the longitudinal stretcher 4 and the first transverse stretcher 5 and then supplied to the extractor 6.
  • the same reference numerals as shown in FIG. 10 are used for substantially the same parts as the above-described conventional system.
  • washing and solvent extraction (removal) processing is performed.
  • a slurry-like coating liquid in which ceramic fine particles are mixed with an aqueous solvent or an organic solvent is applied on the film 22 by the inline coater 8A on the downstream side, and a separator 22A is formed.
  • the sheet-like separator 22A sent from the in-line coater 8A to the downstream side 10 is stretched in the width direction by the second transverse stretcher 7 disposed immediately after the in-line coater 8A and wound by the winding mechanism 23 .
  • the average particle size of the ceramic fine particles used in this example is more than 10 ⁇ m and 400 ⁇ m or less.
  • the “average particle diameter” in the present embodiment was determined by a laser diffraction scattering method. Specifically, measurement is performed according to JIS Z8825 using MT3300 manufactured by Microtrack Bell Corporation. Then, the average particle diameter is specified by analyzing the particle size distribution measured and calculated by the device using an automatic arithmetic processing device.
  • the in-line coater 8A is configured as shown in FIG. 2 (a).
  • the film 22 extracted and processed by the extractor 6 is conveyed toward the gravure roll 26 (second roll) of the doctor chamber 25 through a plurality of guide rolls 24.
  • the film 22 is subjected to the above-described coating treatment in a state of being sandwiched in the thickness direction by the gravure roll 26, the pair of entrance side near rolls 27, and the exit side near rolls 28 (a pair of first rolls).
  • the inlet near roll 27 and the outlet near roll 28 are in contact with one surface of the film 22 at two different positions in the transport direction of the film 22.
  • the gravure roll 26 is in contact with the other surface of the film 22 at a position where the gravure roll 26 is sandwiched between the entry side near roll 27 and the exit side near roll 28 in the transport direction.
  • the gravure roll 26 has a mechanism (not shown) for rotating the gravure roll 26.
  • the positional relationship between the gravure roll 26 and the near rolls 27 and 28 can be adjusted by a variable mechanism (not shown). Specifically, as shown in FIGS. 2 (b) and 2 (c), the gravure roll 26 presses the film 22 along a predetermined pressing direction (see the arrow in the figure), and When viewed from the direction along the axis of rotation of the roller, the angle formed by the line connecting the axis of rotation 26a of at least one of the inlet side near roll 27 and outlet side near roll 28 and the axis of rotation 26a of the gravure roll 26 and the pressing direction. It arrange
  • the roll-to-roll angle ⁇ can be adjusted by moving the position of the gravure roll 26 back and forth (that is, to the left and right in the figure).
  • the inter-roll angle ⁇ is 0 °, at least one of the inlet side near roll 27 and the outlet side near roll 28 and the gravure roll 26 are in a positional relationship adjacent to each other in the left and right in the drawing.
  • the gravure roll 26 has, on its surface, a gravure pattern 26A in which a square screed 40 including a rhombus is engraved in a regular arrangement.
  • the crucible 40 defines a recess on the inner side, and when applying the coating liquid to the film 22 as described later, the coating liquid may be conveyed toward the film 22 while the coating liquid is stored inside. it can.
  • the height of the wall of the crucible 40 is 0 ⁇ m ⁇ H ⁇ 1 mm.
  • the gravure roll 26 has 0 pieces ⁇ N ⁇ 500 pieces of ridges 40 in 1 inch square.
  • the inline coater (gravure coater) 8A does not have the drying function (dryer) of only the drying which the conventional offline coater 8 has, and is also used as the drying function of the second horizontal stretching machine 7.
  • the drying furnace required for the off-line coater shown in FIG. 10 is also used as the drying function of the second transverse stretcher 7 in the separator manufacturing system. That is, the drying furnace conventionally used is omitted. Further, since the delivery and take-up mechanism 23 is also used in the system, only the in-line coater 8A may be disposed after the extractor 6 in the wet separator manufacturing system 1 and in front of the second transverse stretcher 7.
  • FIG. 3 an example of a coating method used for well-known BOPET (Bioxially-Oriented Polyethylene terephthalate) etc. is shown in FIG. 3 as a comparison object.
  • BOPET Bisoxially-Oriented Polyethylene terephthalate
  • an adhesive layer is finally formed on the surface of the film 22.
  • a coating solution is prepared in which about 10 wt% of polyurethane resin and the like that finally becomes an adhesive layer is dissolved in about 90 wt% of water.
  • the coating liquid is applied onto the film 22 with a thickness of about 4 ⁇ m before transverse stretching in a state containing water.
  • the film 22 is stretched by about 4 times in the width direction.
  • a layer of polyurethane resin or the like having a thickness of about 1 ⁇ m that is, an adhesive layer
  • the polyurethane resin or the like is still in a flowable state (for example, in a state like a paste) even after evaporation of water in the coating liquid, so the film 22 is stretched. Even if it is allowed to move, the deformation of the film 22 can be followed in a state of being stuck to the film 22.
  • the coating liquid containing ceramic fine particles is applied by the in-line coater system shown in FIG. 1 to form the fine particle layer on the film 22, the coating liquid in the second horizontal stretching machine 7 In the state of being applied on the film 22, it will be transversely stretched.
  • the micropores in the film 22 blocked in the extraction (removal) process are opened by this transverse drawing, and the porous film 22 (multilayer film) is formed.
  • the method for forming the adhesive layer shown in FIG. 3 is used as it is, there is a concern that peeling or cracking of the fine particle layer may occur during the stretching of the film 22. Therefore, the method for producing a multilayer film according to the present invention is used.
  • a coating liquid containing ceramic fine particles can be configured to contain about 30 to 40 wt% of ceramic fine particles and 60 to 70 wt% of a solvent or the like.
  • the coating liquid can be configured to contain about 40 wt% of alumina as ceramic particles and about 60 wt% of a water-based solvent.
  • the temperature and the air amount of the separator 22A are adjusted so that the heat amount per unit area given to the film in the preheating step (preliminary step) is 1.5 kW / h or less. Thereby, the drying amount (preliminary drying amount) which is the reduction amount of the coating liquid before and behind this process is suppressed to 20 wt% or less. Further, in the subsequent transverse stretching step (this step), the temperature and the air flow are adjusted so that the heat quantity per unit area given to the film is 1.2 kW / h or less. Thereby, the dry amount (main dry amount) which is a reduction amount before and after this treatment is suppressed to 20 wt% or less.
  • the unit area is, for example, 1 m 2 .
  • Example 1 The coating liquid was simply applied and stretched using the apparatus shown in FIGS. 5 and 6.
  • a commercially available polyethylene film (LL-XMTM) manufactured by Futamura Chemical Co., Ltd. was used as the film 22 .
  • Nippon Zeon BM-2000M was used as the ceramic fine particles contained in the coating liquid.
  • the ratio G / L of L was controlled to be 0 ⁇ G / L ⁇ 10.
  • the film 22 coated with the coating liquid under these conditions was treated so as to pass through the 10 zones of the transverse stretcher shown in FIG.
  • the conditions shown in Example 1 of Table 1 below were set with the first zone at the entrance shown in FIG. 8 as the preheating unit, the second zone as the extension unit, and the remaining eight zones as the heat setting unit. In the stretched portion, the film 22 was stretched 1.2 times.
  • Example 2 It experimented on the conditions shown in Example 2 of Table 1 by setting film conveyance speed to 12 m / min on the same conditions as Example 1.
  • Example 3 It experimented on the conditions shown in Example 3 of Table 1 by setting film conveyance speed to 16 m / min on the same conditions as Example 1.
  • Example 4 It experimented on the conditions shown in Example 4 of Table 1 by making film conveyance speed into 20 m / min on the same conditions as Example 1.
  • Example 5 It experimented on the conditions shown in Example 5 of Table 1 by setting film conveyance speed to 24 m / min on the same conditions as Example 1.
  • Example 1 (Comparative example 1) Among the 10 zones of the transverse stretching machine shown in FIG. 8, the second zone of the entrance was shown in Example 1 of Table 1 as the preheating zone, the third zone as the stretching zone, and the remaining 4 zones as the heat setting zone. The conditions were set, and the others were conducted under the same conditions as in Example 1.
  • Examples 1 to 3 When Examples 1 to 3 are compared, the state of cracking is improved and the peel strength tends to be improved as the amount of heat given to the preheating part and the drawing part is reduced. Furthermore, in Examples 4 and 5, no crack was observed in the fine particle layer, and the peel strength was further improved as compared with Examples 1 to 3.
  • Table 2 shows, as a reference example, observation results of the fine particle layer of the multilayer film manufactured under optimum conditions using the off-line type LIB separator manufacturing system shown in FIG.
  • the surface properties of the fine particle layer shown in the SEM images of Examples 4 and 5 manufactured using the system according to the present invention are substantially the same as those of this reference example, and the peel strengths show equal or higher values.
  • the system according to the present invention can produce a multilayer film having mechanical properties equal to or more than the off-line LIB separator manufacturing system.
  • the gravure roll 26 applies the coating liquid to the film 22 while pressing the film 22.
  • the coating liquid is applied to the film 22 in a state where the near rolls 27, 28 and the gravure roll 26 are disposed such that the inter-roll angle is 0 ° or more and 150 ° or less.
  • the film 22 is stretched in the width direction in a state in which the coating liquid has fluidity (in other words, a state in which the coating liquid is not completely dried). As a result, the coating liquid flows following the stretching of the film 22.
  • the multilayer film is finally formed into a multilayer film. Cracking and peeling of the provided particle layer are suppressed. Therefore, according to the manufacturing method which concerns on this embodiment, microparticles
  • fine-particles can be fixed appropriately on the surface of a stretched film.
  • the coating fluid to the film 22 is stretched. It became clear that the followability could be improved.
  • the amount of heat per unit area given to the film 22 in the preliminary step is set to 1.5 kW / h or less, and the amount of heat per unit area given to the film 22 in this step is 1.2 kW. It has become clear that by setting the ratio to / h or less, the amount of decrease in the coating liquid can be adjusted to be set in the above-mentioned range.
  • the coating liquid is obtained by setting the ratio G / L of the rotational speed G of the gravure roll 26 to the transport speed L of the film 22 to a value larger than 0 and 10 or less. It has been found that it can be applied to have the desired thickness.
  • the adhesiveness of the ceramic fine particles to the film 22 becomes good.
  • the configuration as the inline coater 8A can be miniaturized. Therefore, it is easy to arrange the in-line coater between the extractor 6 and the second transverse drawing machine 7.
  • the inline coater 8A (gravure coater) is not provided with a drying function, and the use of the dryer of the second horizontal stretching machine 7 as a dryer for drying can greatly contribute to the miniaturization of the inline coater 8A. Further, optimum coating can be performed by setting the angle, height, and number of the above-described ridges 40 provided on the surface of the gravure roll 26 according to the type of the material to be coated, and the like.
  • the present invention is not limited to the above embodiments, and various modifications can be adopted within the scope of the present invention.
  • the present invention is not limited to the embodiments described above, and appropriate modifications, improvements, etc. are possible.
  • the material, shape, size, number, arrangement location, and the like of each component in the embodiment described above are arbitrary and not limited as long as the present invention can be achieved.
  • Patent Application No. 201-7149893 filed on Aug. 2, 2017, the contents of which are incorporated herein by reference.
  • the method for producing a multilayer film according to the present invention can properly fix the fine particles on the surface of the stretched film.
  • the present invention having this effect can be utilized, for example, in the manufacture of a lithium ion battery separator.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cell Separators (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
PCT/JP2018/029037 2017-08-02 2018-08-02 多層フィルムの製造方法 WO2019027001A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202310575296.9A CN117080676A (zh) 2017-08-02 2018-08-02 多层膜的制造方法
CN201880050293.0A CN111033800A (zh) 2017-08-02 2018-08-02 多层膜的制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-149893 2017-08-02
JP2017149893A JP6876571B2 (ja) 2017-08-02 2017-08-02 Ｌｉｂ用セパレータ製造システム

Publications (1)

Publication Number Publication Date
WO2019027001A1 true WO2019027001A1 (ja) 2019-02-07

Family

ID=65233899

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/029037 WO2019027001A1 (ja) 2017-08-02 2018-08-02 多層フィルムの製造方法

Country Status (4)

Country Link
JP (1) JP6876571B2 (zh)
CN (2) CN117080676A (zh)
TW (1) TWI736787B (zh)
WO (1) WO2019027001A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110286085B (zh) * 2019-07-03 2022-04-05 业成科技（成都）有限公司 90°剥离强度测试夹具、剥离强度测试设备及方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012020437A (ja) * 2010-07-13 2012-02-02 Mitsubishi Plastics Inc 積層多孔フィルム、非水電解液二次電池用セパレータ、および非水電解液二次電池
WO2016080200A1 (ja) * 2014-11-18 2016-05-26 東レバッテリーセパレータフィルム株式会社 ポリオレフィン微多孔膜、電池用セパレータおよびその製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3948824B2 (ja) * 1998-05-12 2007-07-25 帝人株式会社 延伸フィルムの製造方法およびその装置
JP2003112109A (ja) * 2001-10-01 2003-04-15 Toray Ind Inc フィルムの製造方法およびコーティング装置
WO2008053898A1 (en) * 2006-10-30 2008-05-08 Asahi Kasei Chemicals Corporation Polyolefin microporous membrane
WO2015104964A1 (ja) * 2014-01-10 2015-07-16 東レバッテリーセパレータフィルム株式会社 電池用セパレータ及びその製造方法
KR102299957B1 (ko) * 2014-07-30 2021-09-08 에스케이이노베이션 주식회사 폴리올레핀계 다층 복합 다공막의 제조방법
CN107076912B (zh) * 2014-10-01 2020-08-11 住友化学株式会社 偏振性层叠膜或偏振板的制造方法
JP2017064704A (ja) * 2015-10-02 2017-04-06 住友化学株式会社 塗工方法、塗工装置、および機能性フィルムの製造方法
JP6017010B1 (ja) * 2015-12-22 2016-10-26 住友化学株式会社 リチウムイオン二次電池用セパレータフィルムの製造方法およびリチウムイオン二次電池用セパレータフィルムの製造装置
KR20180096618A (ko) * 2015-12-24 2018-08-29 도레이 카부시키가이샤 폴리올레핀 미다공막, 전지용 세퍼레이터 및 그것들의 제조 방법

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012020437A (ja) * 2010-07-13 2012-02-02 Mitsubishi Plastics Inc 積層多孔フィルム、非水電解液二次電池用セパレータ、および非水電解液二次電池
WO2016080200A1 (ja) * 2014-11-18 2016-05-26 東レバッテリーセパレータフィルム株式会社 ポリオレフィン微多孔膜、電池用セパレータおよびその製造方法

Also Published As

Publication number Publication date
TW201911625A (zh) 2019-03-16
JP2019029282A (ja) 2019-02-21
JP6876571B2 (ja) 2021-05-26
CN117080676A (zh) 2023-11-17
TWI736787B (zh) 2021-08-21
CN111033800A (zh) 2020-04-17

Similar Documents

Publication Publication Date Title
US11661703B2 (en) Cellulose based film structure and method for producing the same
US20170165893A1 (en) Production method of microporous plastic film
CA2574994A1 (en) Web-reinforced separator and continuous method for producing same
WO2016132808A1 (ja) 微多孔プラスチックフィルムの製造方法
CN107428059A (zh) 微多孔塑料膜的制造方法
KR20160096547A (ko) 전지용 세퍼레이터의 제조 방법, 및 전지용 세퍼레이터의 권회체
US20080237390A1 (en) Web guide roller, web guide device, and method for guiding web
US20150217322A1 (en) Roll coating process and apparatus
WO2021079580A1 (ja) 塗工フィルムの製造方法および塗工フィルムの製造装置
JP2022119875A (ja) 超広幅連続コーティング装置及びそれを用いたセパレータの製造方法
WO2019027001A1 (ja) 多層フィルムの製造方法
KR102346072B1 (ko) 필름 연신 장치 및 필름 제조 방법
KR102326449B1 (ko) 필름 연신 장치 및 필름 제조 방법
KR101450370B1 (ko) 액압 전사 인쇄용 베이스 필름과 그 제조 방법
KR20200123016A (ko) 전지용 세퍼레이터의 제조 시스템 및 제조 방법
JP5630044B2 (ja) フィルム処理装置
JP2005199725A (ja) フィルム製造方法及び装置
JP2019029282A5 (zh)
JPH02123064A (ja) プラスチックフィルムの搬送方法
JP2017080736A5 (zh)
JP5338397B2 (ja) 加工フィルムの製造方法
WO2023176200A1 (ja) 塗工装置および塗膜付きウェブの製造方法
EP0253149B1 (de) Verfahren zum Herstellen von Kunststoffolien, insbesondere PVC-Folien, durch Kalandrieren
JP2021182533A (ja) セパレータ製造方法、セパレータ製造装置
TW201536509A (zh) 溶液製膜方法及設備

Legal Events

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

Ref document number: 18841961

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18841961

Country of ref document: EP

Kind code of ref document: A1