WO2006092104A1 - Accumulateur lithium-ion haute capacite a boitier metallique - Google Patents
Accumulateur lithium-ion haute capacite a boitier metallique Download PDFInfo
- Publication number
- WO2006092104A1 WO2006092104A1 PCT/CN2006/000320 CN2006000320W WO2006092104A1 WO 2006092104 A1 WO2006092104 A1 WO 2006092104A1 CN 2006000320 W CN2006000320 W CN 2006000320W WO 2006092104 A1 WO2006092104 A1 WO 2006092104A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- positive
- negative
- sealing cover
- plate
- terminal
- Prior art date
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 title abstract description 8
- 239000002184 metal Substances 0.000 title abstract description 8
- 238000007789 sealing Methods 0.000 claims description 33
- 239000012212 insulator Substances 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 7
- 239000011257 shell material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/38—Construction or manufacture
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M10/24—Alkaline accumulators
- H01M10/28—Construction or manufacture
-
- 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
- H01M50/543—Terminals
- H01M50/562—Terminals characterised by the material
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M10/24—Alkaline accumulators
- H01M10/30—Nickel accumulators
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
-
- 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
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- 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
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
-
- 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 invention relates to a large-capacity metal-shell lithium ion secondary battery, belonging to the field of energy. Background technique
- Lithium-ion batteries have the advantages of high capacity and high specific energy, and have been rapidly developed and applied in recent years. They have gradually replaced nickel-cadmium batteries and nickel-hydrogen batteries in various applications, and have been widely used in electric bicycles, electric motorcycles and electric vehicles. Automobiles are popularized and applied. There are large-capacity metal-shell lithium-ion secondary batteries. The positive and negative terminals are usually bolted. Some terminals of the battery are connected by riveting. The other terminal is the battery case.
- the battery has a high voltage, a non-aqueous electrolyte is used, and it is usually used in groups, in the case of abuse, safety problems such as explosion and fire are likely to occur, and one of the reasons is that the positive and negative electrode terminals are usually bolted.
- the bolting method because it is used in a vehicle or a mobile device, has a large vibration force, the bolt is easily slack, the electrolyte leaks, the battery pack is short-circuited and an accident occurs, and at the same time, the assembly process of the battery in mass production is complicated, and it is difficult to achieve a high degree of sealing.
- the existing battery pack composed of a battery case in which the metal case is a positive electrode or a negative electrode of the battery has a large short circuit hazard when it is used. Summary of the invention
- the object of the present invention is to provide a large-capacity metal-shell lithium ion secondary battery with a rivet fixed electrode terminal, thereby improving the sealing performance of the battery and improving the lithium ion secondary battery.
- the safety performance and electrochemical performance of the group, especially the high current charge and discharge performance, also simplifies the production process.
- a large-capacity metal-clad lithium ion secondary battery comprising a casing (3), a sealing cover (1), a battery cell (2), an explosion-proof hole (6), a liquid injection hole (7), a positive terminal (4), and
- the negative terminal (5) is characterized in that the positive terminal and the negative terminal are at both ends of the sealing cover, the explosion-proof hole is between the positive and negative terminals, the liquid injection hole is at one end corner of the sealing cover, and the positive terminal and the negative terminal are respectively It consists of an upper backing plate (8) placed at both ends, an upper insulator (9) and a lower insulating plate (10) placed under the base of the sealing cover plate, positive and negative poles (11, 14), upper and upper plates and upper
- the insulator is an oblong piece, and the upper insulator has a top plate that can be placed on the oblong piece.
- the bottom surface of the round hole has a tubular boss, the outer diameter of the tubular boss is tightly matched with the concentric hole on the base of the sealing cover, and the inner diameter and the rivet column are tight
- the height of the boss is the same as the thickness of the base of the sealing cover.
- the lower insulating plate is a rectangular piece.
- the two or more rivets (12) are passed through the upper end of the positive or negative electrode, the lower insulating plate, and the sealing cover base.
- the upper insulator and the concentric hole of the upper pad are riveted integrally, and the lower ends of the positive and negative poles are correspondingly connected with the positive and negative poles on the battery core.
- the battery core is composed of two or more winding cores obtained by winding a positive electrode plate, a diaphragm and a negative electrode plate in parallel;
- the rivet pin is a solid rivet, and the rivet material used for the positive terminal is aluminum or aluminum Alloy, the rivet material used for the negative terminal is aluminum or copper and its alloy.
- the large-capacity metal-shell lithium ion secondary battery of the present invention has a capacity of
- the metal shell is made of stainless steel, aluminum alloy or nickel-plated iron material.
- the base material of the sealing cover is the same as the shell material, and is punched out by a metal mold.
- the "+" and "-” marks are punched at the two corners to mark the positive and negative electrodes of the battery.
- the injection hole is used to infuse the electrolyte. It can be pressed into the seal with small steel balls or plastic metal blocks.
- the explosion-proof holes are battery safety valves.
- the injection hole is usually welded by a metal foil or sealed with a high-strength adhesive at one end corner of the sealing cover.
- the battery core is made up of two sides of the positive and negative plates and the diaphragm. Two or more cores are connected in parallel.
- the positive electrode material is lithium cobaltate, lithium nickelate, lithium manganate or lithium iron phosphate.
- the negative electrode material is carbon material or other lithium intercalation compound.
- the upper insulator and the lower insulation plate are high.
- the insulating polymer material is injection molded, and the commonly used polymer material is polypropylene or a fluorine resin.
- the battery case is insulated from the positive and negative terminals to improve the safety of the battery pack.
- Riveting with two or more rivets can effectively reduce the internal resistance of the battery, improve the high current output capability of the battery, reduce the dead space of the battery, and increase the volumetric specific energy of the battery.
- the battery core is composed of two or more winding cores wound in parallel, which also effectively reduces the internal resistance of the battery, and is easy to implement, and the production process is simple.
- DRAWINGS 1 is a schematic structural view of a lithium ion secondary battery of the present invention
- Figure 2 is a schematic diagram of the state before and after assembly of the positive and negative terminals of the battery. detailed description
- a large-capacity metal-clad lithium ion secondary battery as shown in Fig. 1, includes a casing (3), a sealing cover (1), a battery cell (2), an explosion-proof hole (6), a liquid injection hole (7),
- the positive terminal (4) and the negative terminal (5), the positive terminal and the negative terminal are at both ends of the sealing cover, the explosion-proof hole is between the positive and negative terminals, the injection hole is at one end corner of the sealing cover, the positive terminal and a negative electrode terminal are disposed on both ends of the plate (8), the insulator (9) and a sealing cover disposed base (I 3) below the lower insulating plate (10), the positive and negative electrode tab (11, 14)
- the upper pad and the upper insulator are long circular plates, and the upper insulator has an oblong groove on which the upper circular plate can be placed, and two or more round holes in the groove, the circle
- the bottom surface of the hole has a tubular boss (not shown), the outer diameter of the tubular boss is tightly
- the edge plate is a rectangular plate body, and two or more rivets (12) are riveted through the concentric holes of the upper or lower electrode tab upper end, the lower insulation plate, the sealing cover base body, the upper insulator and the upper pad,
- the lower end of the negative pole is connected to the positive and negative poles on the battery core, as shown in Figure 2.
- the left side of Figure 2 shows the pre-assembly state, and the right side shows the assembled state.
- the rivet is a solid rivet, positive terminal.
- the rivet material used is aluminum or aluminum alloy, and the rivet material used for the negative terminal is aluminum or copper and its alloy.
- the method of connecting the electrodes not only can insulate the positive and negative terminals from the casing but also reduce the dead space height of the battery, increase the volume specific energy of the battery, and avoid the phenomenon that the battery leaks and shorts due to the loosening of the bolt.
- the upper insulator is injection molded by a mold, and two holes or two or more holes are punched out at both ends of the sealing cover base body, and the size of the hole is tightly matched with the outer diameter of the tubular boss on the upper insulator, so that the assembled positive
- the negative terminal is insulated from the outer casing, and an explosion-proof hole is punched in the middle, and one injection hole is punched at one end corner.
- the upper plate, the lower insulating plate and the upper ends of the positive and negative poles respectively punch out the same two holes as the sealing plate base hole.
- One hole or more than two holes, the hole size is closely matched with the diameter of the rivet column.
- the technique of the present invention is also applicable to a nickel-cadmium or nickel-hydrogen power battery and achieves the same effect.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007557311A JP4790732B2 (ja) | 2005-03-04 | 2006-03-03 | 金属ケーシングを有する高容量リチウムイオン二次電池 |
US11/817,518 US20080213657A1 (en) | 2005-03-04 | 2006-03-03 | High Capacity Lithium Ion Secondary Battery with Metal Case |
KR1020077022615A KR100890178B1 (ko) | 2005-03-04 | 2006-03-03 | 금속 케이스를 갖는 대용량 리튬이온 이차전지 |
EP06721994A EP1855345A4 (en) | 2005-03-04 | 2006-03-03 | HIGH CAPACITY LITHIUM ION BATTERY WITH METAL HOUSING |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200510011386.7 | 2005-03-04 | ||
CNA2005100113867A CN1655389A (zh) | 2005-03-04 | 2005-03-04 | 大容量金属外壳锂离子二次电池 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006092104A1 true WO2006092104A1 (fr) | 2006-09-08 |
Family
ID=34894184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2006/000320 WO2006092104A1 (fr) | 2005-03-04 | 2006-03-03 | Accumulateur lithium-ion haute capacite a boitier metallique |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080213657A1 (zh) |
EP (1) | EP1855345A4 (zh) |
JP (1) | JP4790732B2 (zh) |
KR (1) | KR100890178B1 (zh) |
CN (1) | CN1655389A (zh) |
WO (1) | WO2006092104A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120156536A1 (en) * | 2009-08-28 | 2012-06-21 | Hikohito Yamazaki | Battery, vehicle, and battery-mounting device |
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CN102315396B (zh) * | 2011-08-08 | 2014-12-03 | 佛山市顺德区精进能源有限公司 | 一种锂离子电池模块结构 |
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CN112585811B (zh) * | 2018-09-25 | 2024-01-05 | 松下控股株式会社 | 二次电池 |
CN109449322A (zh) * | 2018-12-21 | 2019-03-08 | 河南鼎能电子科技有限公司 | 一种具有超薄金属外壳的新型锂电池 |
CN110729421B (zh) * | 2019-11-19 | 2024-06-18 | 湖南领湃达志科技股份有限公司 | 电池盖板组件、电池电芯及其组装方法以及连接片 |
CN111180782B (zh) * | 2019-12-31 | 2022-11-08 | 江苏春兰清洁能源研究院有限公司 | 一种采用双芯包叠片和一体铆接制作二次电池的方法 |
CN114512751B (zh) * | 2022-02-23 | 2024-02-09 | 上海兰钧新能源科技有限公司 | 电芯极柱组件及其焊接方法 |
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- 2006-03-03 EP EP06721994A patent/EP1855345A4/en not_active Withdrawn
- 2006-03-03 KR KR1020077022615A patent/KR100890178B1/ko not_active IP Right Cessation
- 2006-03-03 US US11/817,518 patent/US20080213657A1/en not_active Abandoned
- 2006-03-03 JP JP2007557311A patent/JP4790732B2/ja not_active Expired - Fee Related
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US8748035B2 (en) * | 2009-08-28 | 2014-06-10 | Toyota Jidosha Kabushiki Kaisha | Battery, vehicle, and battery-mounting device |
Also Published As
Publication number | Publication date |
---|---|
CN1655389A (zh) | 2005-08-17 |
JP4790732B2 (ja) | 2011-10-12 |
US20080213657A1 (en) | 2008-09-04 |
EP1855345A4 (en) | 2009-01-21 |
KR100890178B1 (ko) | 2009-03-25 |
EP1855345A1 (en) | 2007-11-14 |
JP2008532235A (ja) | 2008-08-14 |
KR20070122471A (ko) | 2007-12-31 |
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