WO2006064741A1 - 孔開き電解金属箔並びにキャリア基材付孔開き電解金属箔及びこれらの製造方法 - Google Patents
孔開き電解金属箔並びにキャリア基材付孔開き電解金属箔及びこれらの製造方法 Download PDFInfo
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- WO2006064741A1 WO2006064741A1 PCT/JP2005/022685 JP2005022685W WO2006064741A1 WO 2006064741 A1 WO2006064741 A1 WO 2006064741A1 JP 2005022685 W JP2005022685 W JP 2005022685W WO 2006064741 A1 WO2006064741 A1 WO 2006064741A1
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- Prior art keywords
- metal foil
- layer
- perforated electrolytic
- base material
- electrolytic metal
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/08—Perforated or foraminous objects, e.g. sieves
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/10—Moulds; Masks; Masterforms
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/20—Separation of the formed objects from the electrodes with no destruction of said electrodes
-
- 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
- Perforated electrolytic metal foil perforated electrolytic metal foil with carrier substrate, and methods for producing the same
- the present invention relates to a perforated electrolytic metal foil having a plurality of fine through-holes, a perforated electrolytic metal foil with a carrier substrate, and a method for producing them.
- perforated electrolytic metal foil having a plurality of fine through-holes has been used in various fields.
- perforated electrolytic metal foil has applications as a current collector for a fuel cell or a secondary battery or a support for a catalyst that promotes a chemical reaction.
- the fine through-holes of the porous electrolytic metal foil (perforated electrolytic metal foil) produced by each of the manufacturing methods disclosed in these patent documents cannot be controlled in production, and are formed randomly (randomly). Has been. That is, according to each manufacturing method disclosed in the patent document, parameters such as the size, shape, position, depth of fine through-holes, and the number of fine through-holes per unit area are arbitrarily set arbitrarily. I can't control it.
- Patent Document 1 Japanese Patent Laid-Open No. 08-236120
- Patent Document 2 JP-A-50-141540
- Patent Document 3 Japanese Patent Laid-Open No. 62-240787
- the inventors of the present invention have determined the size, shape, position, depth, number of fine through-holes per unit area, etc. in the perforated electrolytic metal foil.
- the inventors have devised the following invention that provides a perforated electrolytic metal foil and a method for producing the perforated electrolytic metal foil, which can arbitrarily control the type and thickness of the perforated electrolytic metal foil.
- a perforated electrolytic metal foil according to the present invention is a perforated electrolytic metal foil having a plurality of fine through-holes in the thickness direction, and one side of the perforated electrolytic metal foil. And a plurality of fine through holes penetrating on the other surface side of the metal surface so as to be substantially perpendicular to the reference surface.
- the components constituting the perforated electrolytic metal foil according to the present invention are copper, gold, silver, tin, nickel, cobalt, lead, iron, or platinum, or an alloy thereof, or copper, gold, It is possible to have a laminated structure combining any one of silver, tin, nickel, cobalt, lead, iron, or platinum.
- the electrolytic metal foil constituting the perforated electrolytic metal foil according to the present invention it is possible to improve the anticorrosion performance in order to ensure long-term preservation by providing a fender layer. is there.
- a perforated electrolytic metal foil with a carrier base material improves handling of a perforated electrolytic metal foil having a plurality of fine through holes in the thickness direction. Therefore, the carrier base material and the perforated electrolytic metal foil are bonded together.
- the perforated electrolytic metal foil with a carrier base material it is preferable to provide a release layer between the perforated electrolytic metal foil and the carrier base material. This release layer will be described later.
- the carrier base material is a first metal layer n ⁇ ⁇ the nth metal layer (n is an integer of 2 or more) Multiple layers of Perforated electrolytic metal layer (foil) by using clad metal foil or clad metal plate
- the ⁇ th metal layer ( ⁇ is an integer of 2 or more) may be laminated.
- Manufacturing method of perforated electrolytic metal foil with carrier base material includes the following steps a and b. is there.
- Step a Projection forming step of forming a plurality of insulating protrusions on the surface of the carrier substrate
- Step b Metal plating is performed on the surface of the carrier substrate on which the insulating protrusions are formed.
- An electrodeposition step in which a metal plating layer is deposited in a region other than the insulating protrusions of the carrier substrate, a perforated electrolytic metal foil is formed on the surface of the carrier base material, and a perforated electrolytic metal foil with a carrier foil is formed;
- the carrier base material used in the step a is a carrier base material (A) to a carrier base material (F) shown below. ! It ’s better to use one of them! /.
- Carrier substrate (A) single layer metal foil or metal plate.
- Carrier substrate (F): Release layer ⁇ First metal layer ⁇ ⁇ metal layer ( ⁇ is an integer of 2 or more)
- the first metal layer is a clad metal foil or metal plate having at least one carrier-base release layer between any one of the ⁇ th metal layers, and a plurality of layers in a laminated state.
- the carrier base material (A) to the carrier base material (C) are used as the base material used in the step a. It is also preferable to provide a release layer forming step between the step a and the step b when using either of them.
- the release layer used in the method for producing a perforated electrolytic metal foil with a carrier substrate according to the present invention is a metal release layer containing copper, nickel, or chromium or an organic release layer containing a triazole compound. It is preferable.
- the insulating protrusion formed in the step a is formed by any one of an inkjet method, a screen printing method, a gravure printing method, a relief printing method, and an intaglio printing method. It is preferable to be.
- the insulating protrusion formed in the step a is formed using a photosensitive film.
- the metal plating in the step b. is a metal plating of copper, gold, silver, tin, nickel, cobalt, lead, iron, platinum, or alloy plating thereof. It is preferable to do.
- the metal plating in the step b. is performed by laminating a plurality of metal plating layers selected from copper, gold, silver, tin, nickel, cobalt, lead, iron, and platinum. Things are also preferable.
- Method for producing perforated electrolytic metal foil removes the carrier base material of any one of the above perforated electrolytic metal foils with a carrier base material. It features a concept.
- the size, position, shape, etc. of the fine through-holes can be arbitrarily adjusted. Therefore, it can be applied to any of gas, solid, and liquid as a target to be permeated through the fine through hole, and can be used in any field that is required. Therefore, current collectors such as batteries or chemical reactions are promoted.
- Catalyst carrier screen device for fine powder classification, screen device for solid-liquid separation, net used for oxygen supply port of microorganism storage container, dustproof filter for clean room, liquid antibacterial filter, metal for liquid It can be used in a wide range of fields, such as filters for liquid modification to impart ions to modify liquids such as drinking water, electromagnetic shielding, clothing materials, magnetic materials, and conductive materials.
- the perforated electrolytic metal foil with a carrier substrate, it is possible to cope with the demand for a thin perforated electrolytic metal foil of less than 10 m. Due to the presence of the carrier substrate that supports the perforated electrolytic metal foil, the handling property of the thin perforated electrolytic metal foil can be easily improved, and the perforated electrolytic metal foil is prevented from being contaminated and scratched in the process.
- the perforated electrolytic metal foil according to the present invention can be easily manufactured by first electrodepositing and peeling off the surface of the carrier substrate, which is a reliable and suitable for industrial production. Since it is a manufacturing method, a high production yield can be secured.
- the perforated electrolytic metal foil according to the present invention is a perforated electrolytic metal foil having a plurality of fine through-holes in the thickness direction, and one surface side of the perforated electrolytic metal foil is a reference plane. And a plurality of fine through holes penetrating the other surface side of the metal surface so as to be substantially perpendicular to the reference surface.
- the perforated electrolytic metal foil is directly manufactured by an electrolytic method, and it is later described in comparison with the conventional non-porous metal foil. It should be noted that this is distinguished from a metal foil (for example, punched metal) obtained by opening.
- the thickness of the perforated electrolytic metal foil is not particularly limited. However, considering that it is manufactured by an electrolytic method, it is common sense that the thickness is in the range of 1 ⁇ to 400 / ⁇ m.
- the fine through hole will be described. As will be described later, the fine through-holes referred to here form insulating protrusions that interfere with electrodeposition when forming a metal electrodeposited film, and do not cause electrodeposition in the protrusions. The location forms a fine through hole. Therefore, the size of the fine through hole depends on the formation accuracy such as the height of the protrusion and the cross-sectional size. It is.
- the diameter of the fine through hole is preferably formed in the range of 1 / ⁇ ⁇ to 300 m. Then, according to the use and required quality of the perforated electrolytic metal foil according to the present invention, the size of the fine through hole and the thickness of the foil may be appropriately adjusted.
- the diameter of a fine through hole penetrating from one side of the copper foil to the other side is 3 111 to 35 111 as a demand for the copper plate. There is a demand for products having a substantially circular shape of about 0 m to 200 m.
- the fine through-holes exist as a plurality of fine through-holes penetrating on the other surface side of the metal surface so that one surface side is a reference surface and is substantially perpendicular to the reference surface. Is preferred.
- the fine through hole in such a state is used as a negative electrode forming material of a lithium ion secondary battery having the shortest fine through hole path, ion migration is preferable.
- the concept includes a case where fine through holes extending from the reference surface to the other surface of the electrolytic metal foil are formed obliquely to a certain degree as viewed from the reference surface, and also to a certain degree of meandering. It is described.
- the cross-sectional shape of the fine through-hole appearing on the surface of the metal foil can be formed in various shapes such as an elliptical shape, a rectangular shape, a rhombus shape, or a slit shape that do not necessarily need to be circular.
- an elliptical shape a rectangular shape, a rhombus shape, or a slit shape that do not necessarily need to be circular.
- the perforated electrolytic metal foil is peeled off, the perforated electrolytic metal foil is easily peeled off and is not easily damaged. It is desirable to have a cross-sectional shape surrounded by a smooth curve with no protrusions on the outer edge.
- the arrangement of the fine through-holes in the plane of the foil is determined by considering the application, the fine through-hole density (number of fine through-holes in a unit area), the regularity of the arrangement of the fine through-holes, or Irregularity is determined. Therefore, the fine through-holes may be arranged at a constant pitch interval or may be a completely random pitch interval. In addition, it is possible to design such that the fine through-hole density is increased or decreased in a certain region of the electrolytic metal foil.
- the components constituting the perforated electrolytic metal foil according to the present invention are copper, gold, silver, tin, nickel, cobalt, lead, iron, or platinum, or an alloy thereof, or copper, gold, It is possible to have any of a laminated structure in which any of silver, tin, nickel, cobalt, lead, iron, or platinum is combined.
- a perforated electrode consisting of one single metal layer selected from the group consisting of copper, gold, silver, tin, nickel, cobalt, lead, iron and platinum.
- the electrolytic metal foil constituting the perforated electrolytic metal foil according to the present invention it is possible to improve the anticorrosion performance in order to ensure long-term storage stability by providing a fender layer. is there.
- organic protection or inorganic protection can be employed.
- organic protection it is preferable to use a triazole compound such as benzotriazole or imidazole because it does not cause long-term storage and does not cause an electrical failure.
- inorganic fenders a metal component that exhibits a sacrificial anticorrosive effect is used as a fender in consideration of the constituent metal components of the perforated electrolytic metal foil, such as zinc against copper.
- a perforated electrolytic metal foil with a carrier base material improves handling of a perforated electrolytic metal foil having a plurality of fine through holes in the thickness direction.
- the carrier base material and the perforated electrolytic metal foil are bonded together. Even if this carrier substrate exists and supports the perforated electrolytic metal foil, the perforated electrolytic metal foil has a thickness of less than 10 / zm, and even if it is broken or wrinkled, handling is possible. Sexually improves.
- the layer of perforated electrolytic metal foil may be present on only one side of the carrier foil or on both sides of the carrier foil.
- the carrier for improving the handling property of the perforated electrolytic metal foil having a plurality of fine through holes in the thickness direction.
- the substrate and the perforated electrolytic metal foil are in a state of being bonded together.
- a clad metal foil or clad metal plate in which a plurality of layers of the first metal layer ⁇ ⁇ ⁇ ⁇ metal layer ( ⁇ is an integer of 2 or more) are laminated. It is also possible to use a perforated electrolytic metal layer (foil) ⁇ 1st metal layer ⁇ ⁇ ⁇ ⁇ metal layer ( ⁇ is an integer of 2 or more) A plurality of layers in a laminated state to provide a perforated electrolytic metal foil with a carrier base material
- the perforated electrolytic metal layer (foil) Z the first metal layer ⁇ ... ⁇
- the ⁇ metal layer ( ⁇ is an integer of 2 or more) is provided with at least one release layer, etc. Things are also possible.
- the carrier base material is in a foil state or a plate state, and fulfills a function as a cathode when an electrolysis of a perforated electrolytic metal foil is attempted.
- foil those having a thickness of less than 300 m are referred to as “foil”, and those having a thickness of 300 m or more are referred to as “plates”.
- the material constituting this carrier base material is limited to a special material as long as it has conductivity because the carrier base material itself is polarized to the cathode and electrodeposited on the surface during the production of perforated electrolytic metal foil. Is not necessary.
- a metal material that is a foil plate such as copper, titanium, aluminum, and stainless steel, or a material in which the surface of a plastic material is coated with a metal component (for example, a structure having a metal conductive layer on both sides or one side of a plastic film). Etc.) can be used.
- a metal material is generally used for the carrier substrate.
- the carrier base material it is preferable to use any one of the following carrier base material (A) to carrier base material (F).
- the carrier substrate (A) is a single layer metal foil or metal plate.
- the perforated electrolytic metal foil with a carrier base material according to the present invention has a layer configuration of perforated electrolytic metal layer (foil) Z metal foil (or metal plate).
- FIG. 1 shows a state in which a perforated electrolytic metal foil is provided on the surface of the carrier substrate (A).
- FIG. 1 (a) schematically shows a state in which a perforated electrolytic metal foil 1 is present on one side of a carrier substrate 2.
- FIG. 1 (b) schematically shows a state in which the perforated electrolytic metal foil 1 is present on both surfaces of the carrier substrate 2. Insulating protrusions 3 are clearly shown in the drawing.
- the carrier substrate (B) is a clad metal foil or a metal plate in which a plurality of layers of a first metal layer ⁇ ⁇ n-th metal layer (n is an integer of 2 or more) are laminated.
- the simplest is a clad metal foil or metal plate in a two-layer state in which a first metal layer and a second metal layer are laminated, and this mode will be described with reference to the drawings.
- the carrier base material (B) is used and the perforated electrolytic metal layer (foil) is provided with a layer configuration of Z first metal layer Z second metal layer, such a clad metal foil or metal plate in a two-layer state.
- FIG. 2 shows a state in which a perforated electrolytic metal foil is provided on the surface of the carrier substrate (B).
- Figure 2 (a) schematically shows a state in which there is a perforated electrolytic metal foil on one side of the carrier foil.
- Fig. 2 (b) schematically shows a state in which there are perforated electrolytic metal foils on both sides of the carrier foil.
- the first metal layer and the second metal layer may be made of the same material or different metal materials. It should be noted that all layers from the first metal layer to the nth metal layer are layers having a thickness of at least ⁇ m order, which is not the nm level composed of the amount of trace elements.
- the carrier substrate (C) is composed of the first metal layer ⁇ ⁇ the first metal layer of the nth metal layer (n is an integer of 2 or more) ⁇ ⁇ the ⁇ th ⁇ metal layer
- FIG. 3 (a) schematically shows a state in which there is a perforated electrolytic metal foil on one side of the carrier foil.
- Fig. 3 (b) schematically shows a state in which there are perforated electrolytic metal foils on both sides of the carrier foil.
- the first metal layer and the second metal layer may be made of the same material or different metal materials.
- the release layer in the carrier substrate is used for peeling between the first metal layer and the second metal layer. By separating from the release layer in the carrier substrate, two carrier substrates are separated. A perforated electrolytic metal foil with a material can be obtained. It should be noted that all layers from the first metal layer to the nth metal layer are layers having a thickness of at least ⁇ m order, which is not the nm level composed of the amount of trace elements.
- the carrier substrate (D) is a single layer metal foil or metal plate having a release layer on the surface.
- the perforated electrolytic metal foil with a carrier base material has a layer configuration of perforated electrolytic metal layer (foil) Z release layer Z metal foil (or metal plate). It becomes things. That is, a release layer is provided in advance on the surface of the carrier base material (A), and the release layer is used for peeling off the carrier base material from the perforated electrolytic metal foil. It is.
- FIG. 4 shows a state in which a perforated electrolytic metal foil is provided on the surface of the carrier substrate (C).
- Figure 4 (a) schematically shows a state in which there is a perforated electrolytic metal foil on one side of the carrier foil.
- Fig. 4 (b) schematically shows a state in which there are perforated electrolytic metal foils on both sides of the carrier foil. In the latter case, two perforated electrolytic metal foils can be obtained at once.
- the carrier substrate (E) is a release layer Z first metal layer ⁇ ⁇ ⁇ ⁇ metal layer ( ⁇ is an integer of 2 or more)
- the perforated electrolytic metal foil with a carrier base material has a perforated electrolytic metal layer (foil), a release layer, a first metal layer, and a second metal layer. It has a layer structure. That is, a release layer is provided in advance on the surface of the carrier base material ( ⁇ ), and the release layer is used for peeling off the carrier base material from the perforated electrolytic metal foil. .
- the carrier substrate (F) includes a release layer, a first metal layer, a first metal layer of a first ⁇ metal layer ( ⁇ is an integer of 2 or more), It is a clad metal foil or a metal plate in which at least one carrier base peeling layer is provided between any one of the metal layers, and a plurality of layers are laminated. And most simply, it is a clad metal foil or metal plate in a four-layer state of a release layer, a first metal layer, a release layer in a carrier substrate, and a second metal layer.
- the perforated electrolytic metal foil with a carrier substrate according to the present invention has a perforated electrolytic metal layer (foil), a release layer, a first metal layer, a release layer in the carrier substrate, The layer structure of the second metal layer is provided. That is, a release layer is provided in advance on the surface of the carrier base material (C), and the release layer is used for peeling off the carrier substrate and the perforated electrolytic metal foil for peeling.
- release layer is a release layer between the carrier base material and the perforated electrolytic metal foil, and “the release layer in the carrier base material” is the carrier layer. It is a release layer that exists inside the substrate. Therefore, in the above and the following, the term “release layer” and “exfoliation layer in the carrier substrate” are referred to as “release layer”.
- release layer it is preferable to use either an inorganic release layer or an organic release layer.
- the release layer and the like are provided so that separation between layers is possible with the release layer and the like as a boundary.
- No release layer For use as the mechanical release layer, it is preferable to use chromium plating, nickel plating, lead plating, chromate treatment, or the like.
- the release layer is formed using one or more selected from a nitrogen-containing organic compound, a sulfur-containing organic compound, and a carboxylic acid. preferable.
- the component constituting the organic release layer is, among nitrogen-containing organic compound, sulfur-containing organic compound, and carboxylic acid, the nitrogen-containing organic compound contains nitrogen having a substituent.
- the nitrogen-containing organic compound contains nitrogen having a substituent.
- 1, 2, 3-benzotriazole, carboxy benzotriazole, N ,, N, -bis (benzotriazolylmethyl) urea which is a triazole compound having a substituent.
- 1H-1, 2, 4-triazole, 3-amino-1H-1, 2, 4-triazole and the like are preferably used.
- sulfur-containing organic compound it is preferable to use mercaptobenzothiazole, thiocyanouric acid, 2-benzimidazolethiol, and the like.
- carboxylic acids it is particularly preferable to use monocarboxylic acid, among which oleic acid, linoleic acid, linolenic acid and the like are preferable.
- monocarboxylic acid among which oleic acid, linoleic acid, linolenic acid and the like are preferable.
- the concept regarding the release layer described above can be applied to all release layers in the present invention.
- any of the above-mentioned carrier base material (D), carrier base material (E), and carrier base material (F) is used.
- the carrier base material and the perforated electrolytic metal foil are peeled off and peeled off, assuming that the release layer is located between the perforated electrolytic metal foil and the carrier base material. This is because it is possible to dissolve and peel the carrier substrate by the etching method, which leads to an increase in manufacturing costs.
- the carrier base material-attached perforated electrolytic metal foil according to the present invention is a combination of any of the carrier base material and release layer described above and a perforated electrolytic metal foil having a certain laminated structure. It is.
- Manufacturing method of perforated electrolytic metal foil with carrier base material includes the following steps a and b.
- Step a This projection forming step is a step of forming insulating projections at a plurality of locations on the surface of the carrier substrate.
- the carrier substrate is a foil or plate as described above.
- the An insulating protrusion 3 is formed on the surface (one side or both sides) of the carrier substrate 2.
- FIG. 7 (a) schematically shows a cross section in which the insulating protrusions 3 are formed on the surface of the carrier substrate 2.
- the cross-sectional shape of the insulating protrusion 3 can be applied in various shapes such as a circle, rectangle, rhombus, ellipse, and slit shape.
- the insulating protrusion 3 may be taper slightly tapered toward the upper surface force of the carrier substrate 2. As a result, the perforated electrolytic metal foil 1 is easily peeled off from the carrier substrate 2.
- a plurality of means can be employed as a method of forming the insulating protrusion 3 at this time.
- One of them is a method of forming an insulating protrusion using a printing method. For example, if an insulating protrusion is formed on the surface of the carrier base material by a printing method using a thermosetting rosin ink and then heat-cured, the insulating protrusion can be formed. .
- a printing method can easily draw the shape of the insulating protrusions and the arrangement of the protrusions freely, has a simple process, and greatly contributes to a reduction in manufacturing cost.
- any of an inkjet method, a screen printing method, a gravure printing method, a relief printing method, and an intaglio printing method can be used.
- Insulating protrusions are formed by ordinary methods by these printing methods.
- the ink jet method is preferably used from the viewpoint of the degree of freedom in design and the ability to respond.
- position information and the like for forming the insulating protrusions of the carrier base material are designed on a computer, and the ink jet printer is controlled by the design information to place the insulating protrusions at a desired position on the carrier base material. I can draw.
- the ink jet method since the ink thickness per one jet (one jet) when the ink jetted with the ink jet nozzle force is formed on the metal plate-like carrier foil 1 is thin, it is more convex. In order to increase the height of the portion, it is preferable to obtain an insulating protrusion having a desired height by printing the same pattern a plurality of times. In addition, when using the gravure printing method, it should be noted that fine adjustments according to the characteristics of the device are required to stabilize the shape of the formed insulating protrusions.
- the insulating protrusion 3 is a method using photolithographic technology. That is, the insulating protrusion is formed by the following procedure. This will be described below with reference to FIG.
- an insulating photosensitive resist layer 4 is formed on the surface of the carrier substrate 2.
- resist layer 4 a photosensitive resist material such as a dry film or a liquid resist used for manufacturing a printed wiring board can be used.
- a dry film affix to the surface of the carrier substrate 2 using a laminator.
- the resist layer 3 is preferably formed on the surface of the carrier substrate 2 using a spin coater or the like.
- a dry film is a film having a structure in which a resist material is sandwiched between a polyethylene film and a polyester film, and is widely used as an etching resist for printed wiring boards.
- This dry film can easily have various thicknesses, and it is easy to widen the thickness of the perforated electrolytic metal foil as the final product.
- UV light ultraviolet light
- the exposed resist layer 4 is developed, unnecessary portions of the resist layer 4 are removed, and the insulating protrusions 3 are formed.
- an unnecessary portion of the resist layer 3 is removed with an alkaline solution (for example, a sodium carbonate solution having a concentration of about 1% to 5%), and the remaining resist portion forms the shape of the insulating protrusion 3. .
- the removal method shown in Fig. 8 is for the case where a negative type resist is used. In the case of using a resist of a resist type by performing a known development process, on the contrary, the resist layer 7 subjected to the exposure process is removed and subjected to the exposure process, and the resist layer 3 remains as a resist mask.
- the surface of the carrier substrate is pickled with an acid solution such as dilute sulfuric acid or a mixed solution of dilute sulfuric acid and hydrogen peroxide, and then purified water or It is preferable to use after washing with water such as ion-exchanged water and drying. This is to ensure the fixing property of the insulating protrusions to the carrier substrate.
- an acid solution such as dilute sulfuric acid or a mixed solution of dilute sulfuric acid and hydrogen peroxide
- Step b In this step, as shown in FIG. 7 (b), the carrier base material 2 is force-sword polarized with respect to the surface of the carrier base material 2 on which the insulating protrusions 3 are formed. Then, a metal plating layer is formed in a region other than the insulating protrusion 3 of the carrier base material 2 to form a perforated electrolytic metal foil 1 on the surface of the carrier base material 2, and a perforated electrolysis with a carrier foil.
- Metal foil 10 The
- the carrier base material is displaced from the carrier base material (A) to the carrier base material (F) described above. It is preferable to use these.
- the description regarding the carrier substrate (A) to the carrier substrate (F) is omitted.
- the carrier substrate is used so that the metal component constituting the perforated electrolytic metal foil is deposited on the surface of the carrier substrate itself as an electrode (cathode). And, if necessary, until the processing such as bonding of the perforated electrolytic metal foil to the substrate is completed, it is used as an integral part of the perforated electrolytic metal foil to improve the undulation property, the perforated electrolytic metal foil. It protects the surface of the surface and protects against scratching.
- the carrier base material (A) to the carrier base material (C) As the base material used in the step a, the carrier base material (A) to the carrier base material (C) However, when using any of them, it is preferable to provide a release layer forming step between the step a and the step b. If a release layer forming step is provided at this stage, the state force in FIG. 7 (a) is a portion where there is no insulating protrusion on the surface of the carrier substrate 2, as shown in FIG. 9 (1). A release layer 6 (inorganic or organic release layer) similar to that described above is formed on the surface of the carrier substrate on which a plating layer (perforated electrolytic metal foil) is to be formed.
- the components of the perforated electrolytic metal foil are copper, gold, silver, tin, nickel, It has either a baltic, lead, iron, or platinum, or an alloy thereof, or a laminated structure combining any of copper, gold, silver, tin, nickel, cobalt, lead, iron, or platinum,
- the bath composition, plating conditions, etc. can be arbitrarily changed, and no particular limitation is required.
- the thickness of the perforated electrolytic metal foil is adjusted by changing the electrodeposition time of the electrolytic plating.
- the composition, conditions, etc. of the plating solution that can be used for the plating operation that constitutes the perforated electrolytic metal foil according to the present invention are exemplified below.
- the perforated electrolytic metal foil is made of gold or silver
- either a commonly used cyan bath or non-cyan bath can be used. It is preferable to use a non-cyan bath.
- cyan bath when an organic release layer is used as the release layer, manufacturing considerations such as the formation of a thick organic release layer with large damage are increasing, and the process management tends to become complicated. Because there is.
- the perforated electrolytic metal foil is made of copper
- a solution used as a copper plating solution can be used.
- the bath composition is CuSO ⁇ 5 ⁇ ⁇ concentration 180gZL
- 0 to 50 ° C. is set as a measuring condition.
- a potassium pyrophosphate bath or the like is used.
- a solution used as a tin plating solution can be used.
- tin concentration using stannous sulfate 5-30 g ZL, liquid temperature 20-50 ° C, pH 2-4, current density 0.3-: LOAZdm 2 conditions
- sulfuric acid 1 Tin concentration using tin is 20-40 gZL, sulfuric acid concentration 70-150 gZL, liquid temperature 20-35 ° C, cresol sulfonic acid concentration 70-120 gZL, gelatin concentration l-5 gZL, beta naphthol concentration 0.5-2 gZL, current
- a density of 0.3 to 3 AZdm 2 is used as a plating condition.
- the perforated electrolytic metal foil is made of nickel
- a solution used as a nickel plating solution can be widely used.
- Nickel sulfate is used, nickel concentration is 5-30gZL, liquid temperature is 20-50 ° C, pH is 2-4, current density is 0.3-: LOAZdm 2 conditions
- C pH 8 ⁇ : L1, current density.
- nickel-phosphorus alloy plating can be used by using a phosphoric acid-based solution.
- nickel sulfate concentration 120-180 g / L nickel chloride concentration 35-55 gZL, HPO concentration 30-50 gZL, HPO concentration 20-40 gZL, liquid temperature 70-
- the perforated electrolytic metal foil is made of cobalt
- a solution that is used as a corrugating solution For example, (i) using cobalt sulfate, cobalt concentration 5-30 gZL, trisodium citrate concentration 50-500 gZL, liquid temperature 20-50.
- the perforated electrolytic metal foil is made of lead
- a solution used as a lead plating solution For example, lead borofluoride concentration 250 to 400 gZL, borofluoride acid concentration 30 to 50 gZL, boric acid concentration 10 to 30 gZL, glue concentration 0.1 to 0.5 g / L, beta naphthol concentration 0.1 to 1. Og / L, liquid temperature 25-50 ° C, current density 1-5AZdm 2 etc. are used as mesh conditions.
- a solution used as an iron plating solution can be used.
- iron concentration using ferrous sulfate 10-60gZL, liquid temperature 25-50 ° C, pH 2.5 or less, current density 1-20AZdm 2 conditions (ii) ferrous sulfate concentration 200- 300gZL, salty ferrous iron concentration 35-50gZL, liquid temperature 40-60. C, pH 3.5 to 5.5, current density 1 to 20 AZdm 2 etc. are used as the measuring conditions.
- a solution used as a platinum plating solution for example, 6 to: (NH) PtCl and 100 of LOgZL concentration
- a density of 0.2 to 0.6 AZdm 2 or the like is used as a measuring condition.
- the perforated electrolytic metal foil is composed of alloy components by alloy plating. Since many alloy compositions can be considered for this alloy plating, only an example is shown below.
- an electrolytic plating bath containing silver cyanide, palladium chloride, potassium acid pyrophosphate, and potassium thiocyanate as the silver-palladium alloy plating.
- Use known plating baths and plating conditions such as
- the perforated electrolytic metal foil is composed of a nickel-zinc alloy
- the nickel concentration is 1 to 2.5 g / L using nickel sulfate
- the zinc concentration is 0.1 to 1 lg / L using zinc pyrophosphate.
- Pyrozinate cadmium concentration 50 ⁇ 500g / l ⁇ , liquid temperature 20 ⁇ 50. C, pH 8-ll, current density 0.3-10 AZdm 2 etc. are preferred.
- the perforated electrolytic metal foil is made of nickel-cobalt alloy, cobalt sulfate concentration 80-180 gZL, nickel sulfate concentration 80-120 gZL, boric acid concentration 20-40 gZL, potassium chloride concentration 10-15 gZL, phosphorus Conditions such as sodium acid dihydrogen concentration of 0.1 to 15 gZL, liquid temperature of 30 to 50 ° C., pH of 3.5 to 4.5, current density of 1 to: LOAZdm 2 are preferable.
- the perforated electrolytic metal foil is composed of a nickel-phosphorus alloy, nickel sulfate 120 to 180 g / l, salted Nikkenore 35 to 55 g / l, HPO 30 to 50 g / l, HPO 20 to 40g / l
- the conditions such as a liquid temperature of 70 to 95 ° C., pHO. 5 to 1.5, and current density of 5 to 50 AZdm 2 are preferable.
- the perforated electrolytic metal foil is composed of a lead-tin alloy, stannous sulfate 20-40 gZ1, lead acetate 15-25 gZl, sodium pyrophosphate 100-200 gZl, EDTA '2 sodium 15-25 gZl, PEG-3000 0.8-1.5 gZl, formalin 37% aqueous solution 0.3-lml / U Liquid temperature 45-55 ° C, pH 8-10, current density 5-20AZdm 2 etc. are preferable.
- the perforated electrolytic metal foil is composed of an iron-nickel-cobalt alloy, cobalt sulfate 50-300 g / l, nickel sulfate 50-300 g / l, ferrous sulfate 50-300 g / l, boron Acid 30 to 50gZl, liquid temperature 45 to 55 ° C, pH 4 to 5, current density 1 to: LOAZdm 2 conditions, etc. are preferred Yes.
- the perforated electrolytic metal foil is to be composed of a plurality of metal layers
- various metal plating such as copper, gold, silver, tin, nickel, conoret, lead, iron, or Stack one of the platinum layers in order to form a multilayer structure.
- the plating bath composition and conditions at this time are not described here because the plating method for forming the single layer described above may be adopted in order.
- the perforated electrolytic metal foil produced as described above is preferably subjected to an antifouling treatment on the outermost surface in order to ensure long-term storage.
- an antibacterial layer a layer made of a triazole compound such as chromate, zinc, or BTA can be applied.
- a layer made of a triazole compound such as chromate, zinc, or BTA can be applied.
- all known methods can be used.
- the method for producing perforated electrolytic metal foil according to the present invention removes the carrier base material of the above-mentioned perforated electrolytic metal foil with a carrier base material. It features a concept.
- the carrier base material is used so that the metal component constituting the perforated electrolytic metal foil is deposited on the surface using the carrier base material itself as an electrode (cathode). Therefore, if the carrier base material is removed after the formation of the perforated electrolytic metal foil by the electrolytic method, a perforated electrolytic metal foil is obtained.
- the perforated electrolytic metal foil 1 of the perforated electrolytic metal foil 1 is immersed in an alkaline solution in the state of the perforated electrolytic metal foil 10 with a carrier base. It is also possible to swell and remove the insulating protrusion 3 embedded in the fine through-hole 7, and then remove the carrier substrate 2 to obtain a perforated electrolytic metal foil 1.
- the antifouling treatment is performed on both sides of the perforated electrolytic metal foil, thereby providing more reliable acid resistance. It is possible to obtain inertia and to ensure long-term storage.
- the description of the flaw-proofing layer is omitted.
- a single layer metal foil 35 m thick copper foil
- dilute sulfuric acid 35 m thick copper foil
- washed with water dried and cleaned. It was.
- a 20 m thick dry film was attached to the glossy surface of the copper foil after pickling with a laminator to form a resist film.
- a photomask is arranged on the resist film to form a pattern having a circular shape with a diameter of 25 ⁇ m and a lattice-like arrangement so that the center-to-center distance of the circular shape is 50 / zm. It was exposed and developed as possible to form insulating protrusions.
- aqueous solution containing carboxybenzotriazole at a concentration of 5 gZl is showered on the exposed portion of the carrier base material (copper foil) on which the insulating protrusions are formed to form a release layer. Formed.
- a deposition surface hereinafter simply referred to as “deposition surface” of the perforated electrolytic metal foil of the carrier substrate was formed.
- the anode electrode is an insoluble electrode
- a perforated electrolytic metal foil with a carrier base material is obtained. Then, no copper electrodeposition occurred at the position where the insulating protrusions existed, and the electrodeposited copper film was laminated with a perforated electrolytic metal foil having fine through-holes with a diameter of 20 ⁇ m and a carrier substrate. A perforated electrolytic metal foil with a carrier substrate was obtained.
- the insulating projecting portion remaining in the fine through hole of the perforated electrolytic metal foil was obtained by immersing the perforated electrolytic metal foil with a carrier base material in a 3% sodium hydroxide aqueous solution.
- the resist component was swelled and removed, and the perforated electrolytic metal foil was peeled off.
- a perforated electrolytic metal foil 1 having fine through-holes 7 as shown in the enlarged schematic diagram of FIG. 10 was obtained.
- the perforated electrolytic metal foil (perforated electrolytic copper foil) 1 obtained as described above is immersed in an aqueous benzotriazole solution having an lg / L concentration for 10 seconds, and then pulled up to perform organic antifungal treatment. On both sides. This antifouling treatment was carried out only when a perforated electrolytic metal foil was formed under the conditions of Condition 8, Condition 9, and Condition 12.
- a representative observation photograph of the perforated electrolytic metal foil (perforated electrolytic copper foil) obtained in this example (Condition 1) is shown. That is, an SEM observation image at a magnification of 500 times is shown in FIG.
- the carrier base material (B) is a clad metal in which a plurality of first metal layers ⁇ ... ⁇ ⁇ metal layer ( ⁇ is an integer of 2 or more) are in a laminated state.
- a foil was used. More specifically, the clad metal foil used here was a 20 m thick rolled nickel foil with a 10 m thick cobalt layer electrolyzed. This clad foil was pickled in the same manner as in Example 1, and a dry film having a thickness of about 25 m was pasted with a laminator to form a resist film. Then, in the same manner as in Example 1, in the same manner as applied under Conditions 1 to 12, 12 kinds of perforated electrolytic metal having a thickness of 20 m were obtained under the various electrolytes and plating conditions listed in Table 1. A foil was deposited.
- a perforated electrolytic metal foil having a fine through-hole with a diameter of 20 m and a carrier substrate are obtained.
- a perforated electrolytic metal foil with a carrier base material was laminated, and the carrier base material was removed from the perforated electrolytic metal foil with a carrier base material to obtain a perforated electrolytic metal foil.
- the anti-bacterial treatment for the obtained perforated electrolytic metal foil was carried out only when the perforated electrolytic metal foil was formed under the conditions of Condition 8, Condition 9, and Condition 12.
- the carrier base material (C) the first metal layer of the first metal layer ⁇ ⁇ ⁇ ⁇ ⁇ metal layer ( ⁇ is an integer of 2 or more) ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ (2)
- a clad metal foil having at least one carrier base peeling layer between any one of the ⁇ th metal layers and having a plurality of laminated layers was used. More specifically, the clad metal foil used here is showered with an aqueous solution containing carboxybenzotriazole at a concentration of 5 gZl on one side of a 10 m-thick rolled nickel foil to form a release layer in the carrier substrate.
- a nickel layer having a thickness of 10 m was used under the condition 5 nickel electrolyte and plating conditions.
- the clad foil was pickled in the same manner as in Example 1, and a dry film having a thickness of about 25 m was attached to both sides of the clad foil with a laminator to form a resist film.
- insulative protrusions are provided on both sides of the clad foil to form a release layer between the perforated electrolytic metal foil and the carrier substrate.
- 12 types of perforated electrolytic metal foils with a thickness of 20 ⁇ m on both sides of the clad foil were deposited on the carrier substrate under the various electrolyte solutions and plating conditions listed in Table 1.
- a perforated electrolytic metal foil having fine through-holes with a diameter of 20 ⁇ m is bonded to both surfaces of the carrier substrate. It becomes a perforated electrolytic metal foil. Then, by separating from the carrier base peeling layer in the middle of the nickel layer and the nickel layer, two perforated electrolytic metal foils Z peeling layer (however, between the insulating protrusion and the carrier base) There was no release layer) / nickel layer (functioning as a carrier substrate). In this example, this is called a perforated electrolytic metal foil with a carrier substrate.
- the carrier base material was removed from the perforated electrolytic metal foil with a carrier base material to obtain a perforated electrolytic metal foil.
- the antibacterial treatment for the obtained perforated electrolytic metal foil was performed only when the perforated electrolytic metal foil was formed under the conditions of Condition 1, Condition 8, Condition 9, and Condition 12.
- Typical observation photographs of the perforated electrolytic metal foil (perforated electrolytic copper foil) obtained in this example are the SEM observation image (Fig. 11) at a magnification of 500 times and the SEM observation image at a magnification of 3000 times. Since it is the same as (Fig. 12), the publication is omitted. The observation results are shown in Table 1. This is the same even if the manufacturing conditions change. As a result of observation, as in Example 1, it was confirmed that beautiful fine through-holes were formed in the perforated electrolytic metal foil.
- the carrier substrate (D) As the carrier substrate (D), a single layer metal foil (35 / zm thick copper foil) used in Example 1 having a release layer formed in advance is used. It was. Therefore, the release layer is also present between the carrier substrate and the insulating protrusion.
- this carrier substrate (D) When this carrier substrate (D) was used, the pickling treatment used in Example 1 and the subsequent formation of the release layer were omitted. That is, a 20 m thick dry film was pasted on the release layer with a laminator to form a resist film.
- insulating protrusions were formed, and this surface was used as a deposition surface of the perforated electrolytic metal foil (hereinafter simply referred to as “deposition surface”).
- the carrier substrate (E) As the carrier substrate (E), a 10 ⁇ m-thick cobalt layer was provided by electrolysis on the surface of the 20 ⁇ m-thick rolled-eckel foil used in Example 2. On the cobalt layer, a release layer previously formed was used. Therefore, the release layer also exists between the carrier substrate and the insulating protrusion.
- this carrier substrate (E) When this carrier substrate (E) was used, the pickling treatment used in Example 1 and the subsequent formation of the release layer were omitted. That is, a 25 m thick dry film was attached on the release layer with a laminator to form a resist film.
- an insulating protrusion was formed, and this surface was used as a deposition surface (hereinafter simply referred to as “deposition surface”) of the perforated electrolytic metal foil.
- the carrier substrate (F) an aqueous solution containing carboxybenzotriazole at a concentration of 5 gZl was showered on one side of a 10 m-thick rolled nickel foil used in Example 3.
- a carrier substrate release layer was formed, and a 10 ⁇ m thick nickel layer was used on both sides of the carrier substrate release layer on the condition 5 nickel electrolyte and plating conditions. What formed the peeling layer previously was used. Therefore, the release layer also exists between the carrier substrate and the insulating protrusion.
- this carrier substrate (F) was used, the pickling treatment used in Example 1 and the subsequent formation of the release layer were omitted.
- a 25 m thick dry film was pasted on the release layers on both sides with a laminator to form a resist film.
- insulating protrusions were formed on both surfaces, and both surfaces were used as the deposition surface of the perforated electrolytic metal foil (hereinafter simply referred to as “deposition surface”).
- the perforated electrolytic metal foil according to the present invention has a fine through-hole having an arbitrary shape and a single unit according to the design. It is possible to build in an arbitrary number per unit area. Therefore, it can be used in various wide applications.
- a current collector such as a battery or a support for a catalyst that promotes a chemical reaction
- a screen device for ultrafine powder especially in the case of a conductive perforated metal foil, Dust collection possible
- filters for water purifiers especially in the case of ferromagnetic perforated electrolytic metal foil, it is possible to produce drinking water via a filter applied to the metal foil
- antibacterial filters especially conductive perforated metal foil
- vent hole net of microorganism storage box perforated metal foil placed inside or under the mat, and the foil is grounded, anti-static mat, water repellent and Applicable to fabrics with perforated metal foil sandwiched between fabrics made of Teflon (registered trademark), etc. that have air permeability, and other wide-ranging industrial applications.
- the perforated electrolytic metal foil according to the present invention can be provided to the market in the form of a perforated electrolytic metal foil with a carrier substrate, and the perforated electrolytic metal foil has a thickness of less than 10 m. Therefore, it is possible to ensure good handling properties, and to greatly improve the work efficiency. Depending on the application, it can also be used in products in the state of a perforated electrolytic metal foil with a carrier substrate.
- the manufacturing method of the perforated electrolytic metal foil and the perforated electrolytic metal foil with a carrier base material according to the present invention is based on the manufacturing method of the perforated electrolytic metal foil with a carrier base material, from which By removing the material, a perforated electrolytic metal foil can be easily obtained.
- FIG. 1 is a schematic cross-sectional view of a perforated electrolytic metal foil with a carrier substrate according to the present invention (when a carrier substrate (A) is used).
- FIG. 2 is a schematic sectional view of a perforated electrolytic metal foil with a carrier substrate according to the present invention (when a carrier substrate (B) is used).
- FIG. 3 is a schematic cross-sectional view of a perforated electrolytic metal foil with a carrier substrate according to the present invention (when a carrier substrate (C) is used).
- FIG. 4 is a schematic sectional view of a perforated electrolytic metal foil with a carrier base material according to the present invention (when a carrier base material (D) is used).
- FIG. 5 is a schematic cross-sectional view of a perforated electrolytic metal foil with a carrier substrate according to the present invention. When the base material (E) is used. ).
- FIG. 6 A schematic cross-sectional view of a perforated electrolytic metal foil with a carrier base material according to the present invention (when a carrier base material (F) is used).
- FIG. 7 is a diagram schematically showing a procedure for forming an insulating protrusion on the surface of a carrier substrate and obtaining a perforated electrolytic metal foil.
- FIG. 8 is a diagram for conceptually explaining the process of forming the insulating protrusion on the surface of the carrier substrate (resist method).
- FIG. 9 is a diagram schematically showing a procedure for forming an insulating protrusion on the surface of a carrier substrate and obtaining a perforated electrolytic metal foil.
- FIG. 10 is a conceptual schematic view when seen in a plane in order to understand the arrangement of fine through holes of the perforated electrolytic metal foil according to the present invention.
- FIG. 12 is a photograph (magnification: 300 ⁇ ) of a scanning microscopic image of a plurality of fine through-holes arranged on a perforated electrolytic metal foil produced by an example according to the present invention.
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Abstract
Description
Claims
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-360209 | 2004-12-13 | ||
| JP2004360209 | 2004-12-13 | ||
| JP2005-225740 | 2005-08-03 | ||
| JP2005225740A JP2006193825A (ja) | 2004-12-13 | 2005-08-03 | 孔開き電解金属箔並びにキャリア基材付孔開き電解金属箔及びこれらの製造方法 |
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| Publication Number | Publication Date |
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| WO2006064741A1 true WO2006064741A1 (ja) | 2006-06-22 |
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| PCT/JP2005/022685 Ceased WO2006064741A1 (ja) | 2004-12-13 | 2005-12-09 | 孔開き電解金属箔並びにキャリア基材付孔開き電解金属箔及びこれらの製造方法 |
Country Status (2)
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| JP (1) | JP2006193825A (ja) |
| WO (1) | WO2006064741A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2767618A4 (en) * | 2011-10-14 | 2015-07-08 | Hitachi Chemical Co Ltd | METHOD OF MANUFACTURING METAL FILTERS |
| CN104993153A (zh) * | 2015-07-13 | 2015-10-21 | 深圳市信宇人科技有限公司 | 一种微孔铜箔的制作方法、微孔铜箔及其制作设备 |
| CN110637385A (zh) * | 2017-05-18 | 2019-12-31 | 富士胶片株式会社 | 穿孔金属箔、穿孔金属箔的制造方法、二次电池用负极及二次电池用正极 |
| JP2021068636A (ja) * | 2019-10-25 | 2021-04-30 | 株式会社豊田自動織機 | 電極箔の製造方法 |
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| WO2010137568A1 (ja) * | 2009-05-25 | 2010-12-02 | 三井金属鉱業株式会社 | 基材付孔あき金属箔、基材付孔あき金属箔の製造方法、孔あき金属箔及び孔あき金属箔の製造方法 |
| WO2013172265A1 (ja) * | 2012-05-14 | 2013-11-21 | 日立化成株式会社 | 癌細胞捕捉金属フィルタ、癌細胞捕捉金属フィルタシート、癌細胞捕捉デバイス、及び、それらの製造方法 |
| CN102931414B (zh) * | 2012-11-01 | 2015-03-11 | 彩虹集团公司 | 一种锂离子电池集流体用铜箔的制备工艺 |
| JP6028563B2 (ja) * | 2012-12-26 | 2016-11-16 | 日立化成株式会社 | 金属フィルターの製造方法 |
| KR20160058888A (ko) * | 2013-09-19 | 2016-05-25 | 트레데가르 필름 프로덕츠 코포레이션 | 포밍 스크린의 제조 방법 |
| JP6462375B2 (ja) * | 2015-01-22 | 2019-01-30 | セーレン株式会社 | 支持体付き多孔金属箔及び透過性金属箔の製造方法 |
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| EP2767618A4 (en) * | 2011-10-14 | 2015-07-08 | Hitachi Chemical Co Ltd | METHOD OF MANUFACTURING METAL FILTERS |
| US10258906B2 (en) | 2011-10-14 | 2019-04-16 | Hitachi Chemical Company, Ltd. | Metal filter and method for concentrating cancer cells |
| CN104993153A (zh) * | 2015-07-13 | 2015-10-21 | 深圳市信宇人科技有限公司 | 一种微孔铜箔的制作方法、微孔铜箔及其制作设备 |
| CN110637385A (zh) * | 2017-05-18 | 2019-12-31 | 富士胶片株式会社 | 穿孔金属箔、穿孔金属箔的制造方法、二次电池用负极及二次电池用正极 |
| JP2021068636A (ja) * | 2019-10-25 | 2021-04-30 | 株式会社豊田自動織機 | 電極箔の製造方法 |
| JP7283349B2 (ja) | 2019-10-25 | 2023-05-30 | 株式会社豊田自動織機 | 電極箔の製造方法 |
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| Publication number | Publication date |
|---|---|
| JP2006193825A (ja) | 2006-07-27 |
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