WO2023063612A1 - 인쇄회로기판, 이의 제조 방법 및 이를 포함하는 전지 팩 - Google Patents
인쇄회로기판, 이의 제조 방법 및 이를 포함하는 전지 팩 Download PDFInfo
- Publication number
- WO2023063612A1 WO2023063612A1 PCT/KR2022/014178 KR2022014178W WO2023063612A1 WO 2023063612 A1 WO2023063612 A1 WO 2023063612A1 KR 2022014178 W KR2022014178 W KR 2022014178W WO 2023063612 A1 WO2023063612 A1 WO 2023063612A1
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- WIPO (PCT)
- Prior art keywords
- layer
- copper foil
- circuit board
- printed circuit
- solder resist
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000011889 copper foil Substances 0.000 claims abstract description 83
- 229910000679 solder Inorganic materials 0.000 claims abstract description 79
- 229910052751 metal Inorganic materials 0.000 claims abstract description 61
- 239000002184 metal Substances 0.000 claims abstract description 61
- 238000003466 welding Methods 0.000 claims abstract description 28
- 239000010410 layer Substances 0.000 description 183
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/328—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0256—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for soldering or welding connectors to a printed circuit board
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/4007—Surface contacts, e.g. bumps
- H05K3/4015—Surface contacts, e.g. bumps using auxiliary conductive elements, e.g. pieces of metal foil, metallic spheres
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0364—Conductor shape
- H05K2201/0382—Continuously deformed conductors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0388—Other aspects of conductors
- H05K2201/0394—Conductor crossing over a hole in the substrate or a gap between two separate substrate parts
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09009—Substrate related
- H05K2201/091—Locally and permanently deformed areas including dielectric material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10037—Printed or non-printed battery
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/1028—Thin metal strips as connectors or conductors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/1031—Surface mounted metallic connector elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10742—Details of leads
- H05K2201/10886—Other details
- H05K2201/10946—Leads attached onto leadless component after manufacturing the component
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/11—Treatments characterised by their effect, e.g. heating, cooling, roughening
- H05K2203/1189—Pressing leads, bumps or a die through an insulating layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/4038—Through-connections; Vertical interconnect access [VIA] connections
- H05K3/4084—Through-connections; Vertical interconnect access [VIA] connections by deforming at least one of the conductive layers
-
- 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 printed circuit board and a battery pack including the same, and more particularly, to a printed circuit board having excellent durability and a battery pack including the same.
- secondary batteries capable of charging and discharging are a solution to air pollution, such as existing gasoline vehicles using fossil fuels, electric vehicles (EVs), hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles ( P-HEV), etc., the need for development of secondary batteries is increasing.
- a lithium secondary battery mainly use lithium-based oxides and carbon materials as positive electrode active materials and negative electrode active materials, respectively.
- a lithium secondary battery includes an electrode assembly in which a positive electrode plate and a negative electrode plate coated with such a positive electrode active material and a negative electrode active material are disposed with a separator therebetween, and a battery case in which the electrode assembly is sealed and housed together with an electrolyte solution.
- lithium secondary batteries can be classified into a can-type secondary battery in which an electrode assembly is embedded in a metal can and a pouch-type secondary battery in which an electrode assembly is embedded in a pouch of an aluminum laminate sheet, depending on the shape of an exterior material.
- a battery module electrically connecting multiple battery cells this is used In this battery module, capacity and output are improved by forming a battery cell stack in which a plurality of battery cells are connected in series or parallel to each other.
- one or more battery modules may be mounted together with various control and protection systems such as a battery management system (BMS) and a cooling system to form a battery pack.
- BMS battery management system
- PCB printed circuit board
- BMS Battery Management System
- An object to be solved by the present invention is to provide a printed circuit board capable of preventing damage to an inner layer occurring during welding and a battery pack including the same.
- a printed circuit board includes an inner layer; a first insulating layer formed on the inner layer; a first copper foil layer formed on top of the first insulating layer; and a solder resist layer formed on the first copper foil layer, wherein when a metal tab is welded on the solder resist layer, a weld portion coupling the metal tab and the first copper foil layer is formed, adjacent to the weld portion. A gap is formed in the part.
- the gap may separate the metal tab from the first copper foil layer.
- part or all of the solder resist layer may be removed to form the gap.
- the gap may be 50 ⁇ m to 200 ⁇ m.
- the solder resist layer may cover the entire surface of the first copper foil layer.
- the solder resist layer may cover a portion of the first copper foil layer.
- the solder resist layer may cover an outer edge portion of the first copper foil layer.
- An outer size of the solder resist layer may be larger than that of the first copper foil layer.
- the size of the solder resist layer may be smaller than or equal to the size of the metal tab.
- the size of the first copper foil layer may be smaller than that of the metal tab.
- the metal tab may be connected to the first copper foil layer through the welding.
- a method of manufacturing a printed circuit board includes forming an inner layer, a first insulating layer formed on top of the inner layer, and a first copper foil layer formed on top of the first insulating layer; and forming a solder resist layer on the first copper foil layer, wherein when welding a metal tab on the solder resist layer, a weld portion is formed to couple the quick tap and the first copper foil layer, and the weld portion and A gap is formed at the adjacent portion.
- a battery pack according to another embodiment of the present invention may include the printed circuit board.
- the printed circuit board of the present invention includes a solder resist layer present on the copper foil layer, thereby preventing damage to the inner layer of the printed circuit board during welding of the metal tab.
- FIG. 1 is a cross-sectional view showing the structure of a printed circuit board according to an embodiment of the present invention.
- FIG. 2 is a plan view of the printed circuit board of FIG. 1 viewed from above.
- FIG. 3 is a cross-sectional view showing a structure before a metal tab is welded to the printed circuit board of FIG. 1;
- FIG. 4 is a cross-sectional view showing the structure of a printed circuit board according to another embodiment of the present invention.
- FIG. 5 is a cross-sectional view showing the structure of a printed circuit board in which the printed circuit board of FIG. 4 is partially modified.
- FIG. 6 is a plan view of the printed circuit board of FIG. 5 viewed from above.
- FIG. 7 is a cross-sectional view showing a structure before a quick tap is welded to the printed circuit board of FIG. 5;
- FIG. 8 is a cross-sectional view showing the structure of a printed circuit board in the process of welding a metal tab.
- a part such as a layer, film, region, plate, etc.
- another part is in the middle.
- a part is said to be “directly on” another part, it means that there is no other part in between.
- a reference part means to be located above or below the reference part, and to necessarily be located “above” or "on” in the opposite direction of gravity does not mean no.
- planar image it means when the target part is viewed from above, and when it is referred to as “cross-sectional image”, it means when a cross section of the target part cut vertically is viewed from the side.
- FIGS. 1 to 3 and FIG. 8 a printed circuit board according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3 and FIG. 8 .
- FIG. 1 is a cross-sectional view showing the structure of a printed circuit board according to an embodiment of the present invention.
- FIG. 2 is a plan view of the printed circuit board of FIG. 1 viewed from above.
- a printed circuit board (PCB) 100 includes an inner layer 200 and a first insulating layer 310 formed on the inner layer 200; and a second insulating layer 320 formed under the inner layer 200 .
- the printed circuit board 100 includes a first copper foil layer 410 formed on the first insulating layer 310, a second copper foil layer 420 formed on the bottom of the second insulating layer 320, and A solder resist layer 500 formed on the first copper foil layer 410 is included.
- the inner layer 200 may be a paper core layer impregnated with epoxy resin or a glass fiber layer impregnated with epoxy resin, and more specifically, may be FR-4.
- the first insulating layer 310 and the second insulating layer 320 may be formed of the same material, and the material may be prepreg (PPG).
- the solder resist layer 500 according to this embodiment may be specifically a photo solder resist (PSR) layer.
- the metal tab 600 when the metal tab 600 is welded on the solder resist layer 500, the metal tab 600 and the first copper foil layer 410 are A welded portion 700 is formed, and a gap G is formed at a portion adjacent to the welded portion 700 .
- the metal tab 600 may be a copper tab or a nickel tab, and specifically may be a nickel tab, but is not limited thereto.
- the gap G formed between the metal tab 600 and the first copper foil layer 410 is the thickness of the solder resist layer 500 may match or correspond to
- the gap G may separate the metal tab 600 and the first copper foil layer 410, and in particular, the gap G is formed on both sides of the welded part 700, so that the metal tab 600 and the first copper foil It may be to secure the separation distance of the layer 410 .
- the gap G when the metal tab 600 is welded to the printed circuit board 100, part or all of the solder resist layer 500 may be removed. This means that the solder resist layer 500 is removed by heat by welding, and even if part or all of the solder resist layer 500 is removed, a part of the metal tab 600 is removed from the first copper foil layer 410 and the first copper foil layer 410 by the welding. By being connected, the quick tap 600 may be welded on the printed circuit board 100 . At this time, the gap G increases the distance between the metal tab 600 and the inner layer 200, so that even if the metal tab 600 is welded, a portion of the molten metal tab 600 does not reach the inner layer 200. Damage to the inner layer 200 may be prevented.
- the metal tab 600 when the metal tab 600 is welded, part or all of the solder resist layer 500 may be removed to form a gap G between the quick tab 600 and the first copper foil layer 410 . At this time, even if the gap G is formed, the metal tab 600 may be connected to the first copper foil layer 410 through the welding, and in particular, the metal tab 600 and the first copper foil layer ( 410) may be connected.
- the thickness of the solder resist layer 500 according to this embodiment may be 50 ⁇ m to 200 ⁇ m, preferably 75 ⁇ m to 150 ⁇ m, and more preferably 80 ⁇ m to 100 ⁇ m.
- the gap G may also be formed in a range of 50 ⁇ m to 200 ⁇ m, preferably 75 ⁇ m to 150 ⁇ m, and more preferably 80 ⁇ m to 100 ⁇ m.
- the solder resist layer 500 may cover the entire surface of the first copper foil layer 410 .
- the front surface of the first copper foil layer 410 may mean the entire surface of the first copper foil layer 410 viewed from above. Therefore, as shown in FIG. 2 , the solder resist layer 500 may cover the entire surface of the first copper foil layer 410 .
- the size of the solder resist layer 500 may be equal to or greater than that of the first copper foil layer 410 . Therefore, when the size of the solder resist layer 500 is larger than that of the first copper foil layer 410, the outer surface 510 of the solder resist layer may be formed. The outer surface 510 of the solder resist layer may allow the metal tab 600 to be stably formed and welded on the printed circuit board 100 and the solder resist layer 500 .
- the size of the solder resist layer 500 may be smaller than or equal to the size of the metal tab 600 .
- the size of the first copper foil layer 410 may be smaller than that of the quick tap 600 .
- FIGS. 4 to 8 Since there is overlapping content with the above-described content, only parts different from the above-described content will be described.
- FIG. 4 is a cross-sectional view showing the structure of a printed circuit board according to another embodiment of the present invention.
- 5 is a cross-sectional view showing the structure of a printed circuit board in which the printed circuit board of FIG. 4 is partially modified.
- FIG. 6 is a plan view of the printed circuit board of FIG. 5 viewed from above.
- 7 is a cross-sectional view showing a structure before a quick tap is welded to the printed circuit board of FIG. 5;
- the solder resist layer 500 of the printed circuit board may cover a portion of the first copper foil layer 410 .
- the solder resist layer 500 may cover the outer edge of the first copper foil layer 410 .
- an inner edge portion 520 of the solder resist layer may be formed as a portion on the solder resist layer 500 at a position where the solder resist layer 500 and the outer edge portion of the first copper foil layer 410 overlap.
- the solder resist layer 500 may be formed so as not to overlap the first copper foil layer 410 .
- an overlapping portion of the solder resist layer 500 and the first copper foil layer 410 may be formed so that the inner edge portion 520 of the solder resist layer is formed. Therefore, the solder resist layer 500 can be stably formed on the first copper foil layer 410 by the inner edge portion 520 of the solder resist layer.
- a quick tap 600 may be formed on the solder resist layer 500 .
- the outer size of the solder resist layer 500 may be formed larger than the outer size of the first copper foil layer 410.
- the outer size of the solder resist layer 500 may be the same as the outer size of the first copper foil layer 410 .
- the outer size may mean the outer size of the solder resist layer 500 and the first copper foil layer 410 shown in FIG. 6 .
- the inner size of the solder resist layer 500 may be smaller than the outer size of the first copper foil layer 410 .
- the metal tab 600 can be stably formed on the solder resist layer 500, and when welding is performed, a gap G is formed to damage can be prevented.
- the manufacturing method of the printed circuit board according to the present embodiment includes an inner layer 200, a first insulating layer 310 formed on the inner layer 200, and a first insulating layer formed on the first insulating layer 310.
- the gap G may be formed on both sides of the welded part 700 as a center.
- the manufacturing method of the printed circuit board according to the present embodiment the inner layer 200, the first insulating layer 310 formed on top of the inner layer 200, and the top of the first insulating layer 310
- the step of forming the first copper foil layer 410 (S100) the second insulating layer 320 formed under the inner layer 200 and the second copper foil formed under the second insulating layer 320 It may further include forming layer 420 .
- the gap G formed between the metal tab 600 and the first copper foil layer 410 is the thickness of the solder resist layer 500 may match or correspond to
- the gap G may separate the metal tab 600 and the first copper foil layer 410, and in particular, the gap G is formed on both sides of the welded part 700, so that the metal tab 600 and the first copper foil It may be to secure the separation distance of the layer 410 .
- the thickness of the solder resist layer 500 may be 50 ⁇ m to 200 ⁇ m, preferably 75 ⁇ m to 150 ⁇ m, and more preferably 80 ⁇ m to 100 ⁇ m.
- the gap G may also be formed in a range of 50 ⁇ m to 200 ⁇ m, preferably 75 ⁇ m to 150 ⁇ m, and more preferably 80 ⁇ m to 100 ⁇ m.
- the gap G when the metal tab 600 is welded to the printed circuit board 100, part or all of the solder resist layer 500 may be removed. This means that the solder resist layer 500 is removed by heat by welding, and even if part or all of the solder resist layer 500 is removed, a part of the metal tab 600 is removed from the first copper foil layer 410 and the first copper foil layer 410 by the welding. By being connected, the quick tap 600 may be welded on the printed circuit board 100 . At this time, the gap G increases the distance between the metal tab 600 and the inner layer 200, so that even if the metal tab 600 is welded, a portion of the molten metal tab 600 does not reach the inner layer 200. Damage to the inner layer 200 may be prevented.
- the metal tab 600 when the metal tab 600 is welded, part or all of the solder resist layer 500 may be removed to form a gap G between the quick tab 600 and the first copper foil layer 410 . At this time, even if the gap G is formed, the metal tab 600 may be connected to the first copper foil layer 410 through the welding, and in particular, the metal tab 600 and the first copper foil layer ( 410) may be connected.
- the solder resist layer 500 may cover the entire surface of the first copper foil layer 410 .
- the solder resist layer 500 may cover a portion of the first copper foil layer 410 .
- the solder resist layer 500 may cover the outer edge of the first copper foil layer 410 .
- an inner edge portion 520 of the solder resist layer may be formed as a portion on the solder resist layer 500 at a position where the solder resist layer 500 and the outer edge portion of the first copper foil layer 410 overlap.
- the battery pack according to this embodiment includes the above-described printed circuit board.
- the battery pack of the present invention may have a structure in which one or more battery modules according to the present embodiment are gathered and packed by adding a battery management system (BMS) that manages the temperature or voltage of the battery and a cooling device. there is.
- BMS battery management system
- the printed circuit board may be used as some components of the battery management system (BMS).
- the battery pack may be applied to various devices. These devices can be applied to means of transportation such as electric bicycles, electric vehicles, hybrid vehicles, etc., but the present invention is not limited thereto and can be applied to various devices capable of using a battery module, which also falls within the scope of the present invention. .
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
- Battery Mounting, Suspending (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
Abstract
Description
Claims (19)
- 내층;상기 내층의 상부에 형성되는 제1 절연층;상기 제1 절연층의 상부에 형성되는 제1 동박층; 및상기 제1 동박층의 상부에 형성되는 솔더레지스트층을 포함하고,상기 솔더레지스트층 상에 금속 탭 용접 시, 상기 금속 탭과 상기 제1 동박층이 결합하는 용접부가 형성되고, 상기 용접부와 인접한 부분에 갭(gap)이 형성되는 인쇄회로기판.
- 제1항에서,상기 갭은 상기 금속 탭과 상기 제1 동박층을 이격시키는 인쇄회로기판.
- 제1항에서,상기 금속 탭 용접 시,상기 솔더레지스트층의 일부 또는 전체가 제거되어 상기 갭이 형성되는 인쇄회로기판.
- 제1항에서,상기 갭은 50μm 내지 200μm인 인쇄회로기판.
- 제1항에서,상기 솔더레지스트층은 상기 제1 동박층의 전면을 덮는 인쇄회로기판.
- 제1항에서,상기 솔더레지스트층은 상기 제1 동박층의 일부를 덮는 인쇄회로기판.
- 제6항에서,상기 솔더레지스트층은 상기 제1 동박층의 외곽 테두리부를 덮는 인쇄회로기판.
- 제7항에서,상기 솔더레지스트층의 외곽 크기는 상기 제1 동박층의 외곽 크기보다 크게 형성되는 인쇄회로기판.
- 제1항에서,상기 솔더레지스트층의 크기는 상기 금속 탭의 크기보다 작거나 동일하게 형성되는 인쇄회로기판.
- 제1항에서,상기 제1 동박층의 크기는 상기 금속 탭의 크기보다 작게 형성되는 인쇄회로기판.
- 제1항에서,상기 금속 탭은 상기 용접을 통해 상기 제1 동박층과 연결되는 인쇄회로기판.
- 내층, 상기 내층의 상부에 형성되는 제1 절연층, 및 상기 제1 절연층의 상부에 형성되는 제1 동박층을 형성하는 단계;상기 제1 동박층의 상부에 솔더레지스트층을 형성하는 단계를 포함하고,상기 솔더레지스트층 상에 금속 탭 용접 시, 상기 급속 탭과 상기 제1 동박층이 결합하는 용접부가 형성되고, 상기 용접부와 인접하는 부분에 갭(gap)이 형성되는 인쇄회로기판의 제조 방법.
- 제12항에서,상기 갭은 상기 금속 탭과 상기 제1 동박층을 이격시키는 인쇄회로기판의 제조 방법.
- 제12항에서,상기 금속 탭 용접 시,상기 솔더레지스트층의 일부 또는 전체가 제거되어 상기 갭이 형성되는 인쇄회로기판의 제조 방법.
- 제12항에서,상기 갭은 50μm 내지 200μm인 인쇄회로기판의 제조 방법.
- 제12항에서,상기 솔더레지스트층은 상기 제1 동박층의 전면을 덮는 인쇄회로기판의 제조 방법.
- 제12항에서,상기 솔더레지스트층은 상기 제1 동박층의 일부를 덮는 인쇄회로기판의 제조 방법.
- 제17항에서,상기 솔더레지스트층은 상기 제1 동박층의 외곽 테두리부를 덮는 인쇄회로기판의 제조 방법.
- 제1항에 따른 인쇄회로기판을 포함하는 전지 팩.
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EP22881241.8A EP4380324A1 (en) | 2021-10-12 | 2022-09-22 | Printed circuit board, manufacturing method therefor, and battery pack comprising same |
CN202280061429.4A CN117941475A (zh) | 2021-10-12 | 2022-09-22 | 印刷电路板、其制造方法以及包括印刷电路板的电池组 |
JP2024509449A JP2024532162A (ja) | 2021-10-12 | 2022-09-22 | 印刷回路基板、その製造方法およびこれを含む電池パック |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US6655967B2 (en) * | 2000-08-08 | 2003-12-02 | Sumitomo Wiring Systems, Ltd. | Electrical connector housing |
KR101103301B1 (ko) * | 2009-12-10 | 2012-01-11 | 엘지이노텍 주식회사 | 다층인쇄회로기판 및 그 제조방법 |
JP2014135166A (ja) * | 2013-01-09 | 2014-07-24 | Sanyo Electric Co Ltd | 電池パック |
KR20150122409A (ko) * | 2014-04-23 | 2015-11-02 | 주식회사 엘지화학 | Pcb 접합 방법 |
KR20190046511A (ko) * | 2017-10-26 | 2019-05-07 | 삼성전기주식회사 | 다층 인쇄회로기판 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6655967B2 (en) * | 2000-08-08 | 2003-12-02 | Sumitomo Wiring Systems, Ltd. | Electrical connector housing |
KR101103301B1 (ko) * | 2009-12-10 | 2012-01-11 | 엘지이노텍 주식회사 | 다층인쇄회로기판 및 그 제조방법 |
JP2014135166A (ja) * | 2013-01-09 | 2014-07-24 | Sanyo Electric Co Ltd | 電池パック |
KR20150122409A (ko) * | 2014-04-23 | 2015-11-02 | 주식회사 엘지화학 | Pcb 접합 방법 |
KR20190046511A (ko) * | 2017-10-26 | 2019-05-07 | 삼성전기주식회사 | 다층 인쇄회로기판 |
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