WO2015046754A1 - 스크랩 제거부를 포함하는 노칭 장치 - Google Patents
스크랩 제거부를 포함하는 노칭 장치 Download PDFInfo
- Publication number
- WO2015046754A1 WO2015046754A1 PCT/KR2014/007675 KR2014007675W WO2015046754A1 WO 2015046754 A1 WO2015046754 A1 WO 2015046754A1 KR 2014007675 W KR2014007675 W KR 2014007675W WO 2015046754 A1 WO2015046754 A1 WO 2015046754A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- press
- scrap
- notching
- electrode
- electrode sheet
- Prior art date
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Classifications
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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
- H01M4/04—Processes of manufacture in general
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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
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/256—Carrying devices, e.g. belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a notching device comprising a scrap removal part.
- the secondary battery is an electric vehicle (EV), a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle that has been proposed as a solution for air pollution of existing gasoline and diesel vehicles using fossil fuel. It is attracting attention as a power source such as (Plug-In HEV).
- the secondary battery is manufactured in a form in which the electrode assembly is embedded in the battery case together with the electrolyte.
- the electrode assembly is classified into a stack type, a folding type, a stack-folding type, and the like according to a manufacturing method.
- the unit assembly has a structure in which the anode and the cathode are sequentially stacked with the separator interposed therebetween. In order to make such an electrode assembly, it is necessary to first prepare a cathode and an anode on which electrode tabs are formed.
- a notching process of forming the electrode tabs on the continuous electrode sheet on which one or both surfaces of the electrode active material is applied is required.
- the notching process generally consists of placing an electrode sheet on a die and punching a portion of the electrode sheet using a press.
- the residue formed by punching by the press that is, the scrap
- the scrap is discharged through an opening formed corresponding to the shape of the press on the die.
- the scrap is generally discharged to the outside of the die through the opening by gravity, but due to friction with the inside of the die, there is a case where the scrap remains at the inlet of the opening at the top of the die without being discharged outside the die .
- the electrode sheet is conveyed by the gripper after the electrode sheet is punched out, the electrode sheet is caught by the remaining scrap.
- the present invention aims to solve the problems of the prior art as described above and the technical problems that have been requested from the past.
- An object of the present invention is to provide a notching apparatus which can stably form an electrode tab on an electrode sheet and at the same time smoothly discharge scrap.
- Still another object of the present invention is to provide a secondary battery exhibiting excellent operating characteristics using the notching device as described above.
- the notching device for achieving the above object, as a notching device for forming an electrode tab on a continuous electrode sheet, the electrode active material is coated on one or both sides in the battery production process,
- a press for punching an electrode sheet so that an electrode tab can be formed on a portion of the electrode sheet having an air injection hole for injecting air from a bottom surface thereof, and having at least one scrap removing unit;
- the notching apparatus according to the present invention can effectively discharge the scrap to the outside of the die by injecting air to the scrap through the air injection port formed on the bottom surface of the press.
- the scrap removal portion when scrap is not discharged from the die surface even by thrust of air, it is possible to apply a further physical force to completely discharge the scrap out of the die.
- the scrap removal portion may be a structure that is resilient in situ after operating in the opening direction of the die so that the punched scrap can be separated from the bottom surface of the press to be discharged into the opening of the die.
- the scrap removal unit may include a compression spring for resilient in-situ recovery.
- the scrap removing unit it may be made of a structure including a repulsive force for applying a downward force in contact with the scrap, and a compression spring coupled to the repulsive force to apply a restoring force.
- One end of the repulsive force may be partially protruded from the bottom surface of the press, and the other end of the repulsive force may be coupled to a compression spring mounted inside the press.
- the repulsive force may be formed immediately of a circular column or a polygonal column structure.
- the repulsive force may be compressed by the compression spring and simply contact the electrode sheet. After the press punches the electrode sheet to generate scrap, the repulsive force may discharge the scrap into the opening of the die by the restoring force of the compression spring.
- the repulsive force may be elastically protruding from the bottom surface of the press by 1 cm to 5 cm. If the repulsive portion protrudes from the bottom surface of the press is less than 1 cm in length, the scrap cannot be sufficiently pushed out of the die opening after the scrap is punched out. On the other hand, when the length of the repulsive force protruding from the bottom surface of the press exceeds 5 cm, the electrode sheet protrudes so that the electrode sheet is not caught in the protruding repulsive portion in the process of transferring the electrode sheet by the gripper after discharging the scrap. Since the position of the press must be further moved upward by the length of the repulsive force, the process time increases. Thus, the proper length of the repulsive portion protruding elastically from the bottom surface of the press may be 1 cm to 5 cm, more specifically 2 cm to 3 cm.
- Restoring force of the compression spring may be 1 N to 10 N.
- the restoring force of the compression spring is less than 1 N, the scrap cannot be sufficiently pushed out of the die opening by the restoring force of the compression spring.
- the restoring force of the spring exceeds 10 N, the repulsive force may deform the electrode sheet before the scrap is punched out by the press.
- the appropriate restoring force of the compression spring may be 1 N to 10 N, more specifically 4 N to 6 N.
- the air injection holes may be formed over the entire bottom surface of the press. Thus, since the same thrust is applied to the entire surface of the scrap, the scrap can fall vertically onto the opening of the die and can be discharged out of the die without significant friction with the inner wall of the die.
- the air injection port may be formed in the center of the repulsive force.
- the present invention also provides an electrode assembly manufactured using the notching device.
- the present invention also provides a secondary battery in which the electrode assembly is sealed inside the battery case together with the electrolyte solution.
- the present invention also provides a battery pack comprising the secondary battery as a unit cell.
- the present invention also provides a device comprising the battery pack as a power source, and the device is specifically, a mobile phone, a portable computer, a smartphone, a smart pad, a netbook, a LEV (Light Electronic Vehicle), an electric vehicle. , A hybrid electric vehicle, a plug-in hybrid electric vehicle, and a power storage device.
- the device is specifically, a mobile phone, a portable computer, a smartphone, a smart pad, a netbook, a LEV (Light Electronic Vehicle), an electric vehicle.
- LEV Light Electronic Vehicle
- a hybrid electric vehicle a plug-in hybrid electric vehicle, and a power storage device.
- FIG. 1 is a side view of a notching device according to one embodiment of the present invention.
- FIG. 2 is a plan view of the press of FIG. 1;
- FIG. 3 is a vertical sectional view of the press of FIG. 1.
- FIG. 1 schematically shows a side view of a notching device according to one embodiment of the invention
- FIG. 2 schematically shows a plan view of the press of FIG. 1
- FIG. 3 shows a vertical view of the press of FIG. 1.
- a cross-sectional view is schematically shown.
- the notching device 10 includes a press 100, a die 200, and a gripper 300.
- the planar structure of the press 100 has a structure including the unevenness 110 having a shape corresponding to the electrode tab in order to form the electrode tab in the electrode sheet 20.
- the air injection holes 120 are formed over the entire planar surface of the press 100, and the scrap removers 130 are spaced apart from each other at the same center from the center of the plane of the press 100.
- the scrap remover 130 of the press 100 includes a repulsive force 131 and a compression spring 132.
- the compression spring 132 is mounted inside the press 100, and the upper end of the repulsive force 131 is coupled to the compression spring 132.
- the lower end of the repulsive force 131 protrudes by a length H of 2 cm from the lower end surface of the press 100.
- the die 200 has an opening 210 having a shape corresponding to the press 100.
- the notching device according to the present invention can effectively discharge the scrap to the outside of the die by injecting air to the scrap through the air injection port formed on the bottom surface of the press.
- the scrap removal portion when scrap is not discharged from the die surface even by thrust of air, it is possible to apply a further physical force to completely discharge the scrap out of the die.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Biophysics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Computer Hardware Design (AREA)
- Mechanical Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
- Cleaning In General (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Details Of Cutting Devices (AREA)
Abstract
Description
Claims (16)
- 전지 생산 공정에서 일면 또는 양면에 전극 활물질이 도포되어 있는 연속적인 전극 시트에 전극 탭을 형성하는 노칭 장치로서,상기 전극 시트의 일부에 전극 탭이 형성될 수 있도록 전극 시트를 타발하는 프레스로서, 하단면으로부터 공기를 분사하는 공기 분사구가 형성되어 있고, 적어도 하나 이상의 스크랩 제거부가 장착되어 있는 프레스;상기 프레스에 의해 타발된 스크랩이 배출될 수 있도록, 상기 프레스에 대응하는 형상의 개구가 형성되어 있는 다이; 및상기 프레스의 동작에 동기화 되어 상기 프레스에 대응하는 크기만큼 전극 시트를 이송하는 그립퍼;를 포함하는 것을 특징으로 하는 노칭 장치.
- 제 1 항에 있어서, 상기 스크랩 제거부는, 타발된 스크랩이 프레스의 하단면으로부터 분리되어 다이의 개구로 배출될 수 있도록, 다이의 개구 방향으로 작동한 후 탄력적으로 원위치 복원되는 구조를 포함하고 있는 것을 특징으로 하는 노칭 장치.
- 제 2 항에 있어서, 상기 스크랩 제거부는 탄력적인 원위치 복원을 위한 압축 스프링을 포함하고 있는 것을 특징으로 하는 노칭 장치.
- 제 3 항에 있어서, 상기 스크랩 제거부는, 스크랩과 접촉하여 하향력을 가하는 척력부와, 상기 척력부와 결합되어 복원력을 가하는 압축 스프링을 포함하고 있는 것을 특징으로 하는 노칭 장치.
- 제 4 항에 있어서, 상기 척력부는 원 기둥 또는 다각 기둥 구조의 바(bar)인 것을 특징으로 하는 노칭 장치.
- 제 5 항에 있어서, 상기 척력부는 프레스의 하단면으로부터 1 cm 내지 5 cm 만큼 탄력적으로 돌출되어 있는 것을 특징으로 하는 노칭 장치.
- 제 6 항에 있어서, 상기 척력부는 프레스의 하단면으로부터 2 cm 내지 3 cm 만큼 탄력적으로 돌출되어 있는 것을 특징으로 하는 노칭 장치.
- 제 1 항에 있어서, 상기 프레스의 하단면에는 복수의 공기 분사구들이 전체면에 걸쳐 형성되어 있는 것을 특징으로 하는 노칭 장치.
- 제 5 항에 있어서, 상기 척력부의 중앙에 공기 분사구가 형성되어 있는 것을 특징으로 하는 노칭 장치.
- 제 4 항에 있어서, 상기 압축 스프링의 복원력은 1 N 내지 10 N 인 것을 특징으로 하는 노칭 장치.
- 제 10 항에 있어서, 상기 압축 스프링의 복원력은 4 N 내지 6 N 인 것을 특징으로 하는 노칭 장치.
- 제 1 항 내지 제 11 항 중 어느 하나에 따른 장치를 사용하여 제조되는 것을 특징으로 하는 전극조립체.
- 제 12 항에 있어서, 상기 전극조립체가 전해액과 함께 전지케이스의 내부에 밀봉되어 있는 것을 특징으로 하는 이차전지.
- 제 13 항에 따른 이차전지를 단위전지로서 둘 또는 그 이상 포함하는 것을 특징으로 하는 전지팩.
- 제 14 항에 따른 전지팩을 포함하고 있는 것을 특징으로 하는 디바이스.
- 제 15 항에 있어서, 상기 디바이스는 휴대폰, 휴대용 컴퓨터, 스마트폰, 스마트 패드, 넷북, LEV(Light Electronic Vehicle), 전기자동차, 하이브리드 전기자동차, 플러그-인 하이브리드 전기자동차, 및 전력저장장치로부터 선택되는 것을 특징으로 하는 디바이스.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016540792A JP6249510B2 (ja) | 2013-09-24 | 2014-08-19 | スクラップ除去部を含むノッチング装置 |
EP14849092.3A EP3032609B1 (en) | 2013-09-24 | 2014-08-19 | Notching apparatus having scrap removing part |
CN201480051247.4A CN105556701B (zh) | 2013-09-24 | 2014-08-19 | 具有碎片移除装置的冲槽设备 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0113183 | 2013-09-24 | ||
KR1020130113183A KR101726780B1 (ko) | 2013-09-24 | 2013-09-24 | 스크랩 제거부를 포함하는 노칭 장치 |
Publications (1)
Publication Number | Publication Date |
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WO2015046754A1 true WO2015046754A1 (ko) | 2015-04-02 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/KR2014/007675 WO2015046754A1 (ko) | 2013-09-24 | 2014-08-19 | 스크랩 제거부를 포함하는 노칭 장치 |
Country Status (5)
Country | Link |
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EP (1) | EP3032609B1 (ko) |
JP (1) | JP6249510B2 (ko) |
KR (1) | KR101726780B1 (ko) |
CN (1) | CN105556701B (ko) |
WO (1) | WO2015046754A1 (ko) |
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CN113441617B (zh) * | 2021-06-10 | 2022-08-26 | 东风柳州汽车有限公司 | 加油口座的冲压方法及加油口座 |
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KR102523375B1 (ko) * | 2022-12-27 | 2023-04-19 | 주식회사 에스알엔디 | 연료전지용 막전극접합체 제조방법 |
KR102648934B1 (ko) * | 2023-05-26 | 2024-03-19 | 이상오 | 프레스 금형의 스크랩 처리 장치 |
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JP6249510B2 (ja) | 2017-12-20 |
EP3032609B1 (en) | 2018-07-25 |
CN105556701A (zh) | 2016-05-04 |
JP2016534526A (ja) | 2016-11-04 |
KR101726780B1 (ko) | 2017-04-13 |
EP3032609A1 (en) | 2016-06-15 |
CN105556701B (zh) | 2019-04-19 |
EP3032609A4 (en) | 2016-08-10 |
KR20150033325A (ko) | 2015-04-01 |
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