JP2012102400A - 多孔質銅箔の製造方法 - Google Patents
多孔質銅箔の製造方法 Download PDFInfo
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- JP2012102400A JP2012102400A JP2011243426A JP2011243426A JP2012102400A JP 2012102400 A JP2012102400 A JP 2012102400A JP 2011243426 A JP2011243426 A JP 2011243426A JP 2011243426 A JP2011243426 A JP 2011243426A JP 2012102400 A JP2012102400 A JP 2012102400A
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- copper foil
- chromium
- porous copper
- metal
- containing component
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 239000011889 copper foil Substances 0.000 title claims abstract description 91
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 239000011651 chromium Substances 0.000 claims abstract description 39
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 31
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 238000007747 plating Methods 0.000 claims abstract description 13
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims description 35
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 claims description 32
- 238000012546 transfer Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- CMMUKUYEPRGBFB-UHFFFAOYSA-L dichromic acid Chemical compound O[Cr](=O)(=O)O[Cr](O)(=O)=O CMMUKUYEPRGBFB-UHFFFAOYSA-L 0.000 claims description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 claims description 4
- LSWZMKLTBNIIHY-UHFFFAOYSA-N barium(2+);oxido-(oxido(dioxo)chromio)oxy-dioxochromium Chemical compound [Ba+2].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O LSWZMKLTBNIIHY-UHFFFAOYSA-N 0.000 claims description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N chromium trioxide Inorganic materials O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 2
- 229940117975 chromium trioxide Drugs 0.000 claims description 2
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 claims description 2
- AQWIYQPYXQGBQU-UHFFFAOYSA-N dicesium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium Chemical compound [Cs+].[Cs+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O AQWIYQPYXQGBQU-UHFFFAOYSA-N 0.000 claims description 2
- KHADWTWCQJVOQO-UHFFFAOYSA-N zinc;oxido-(oxido(dioxo)chromio)oxy-dioxochromium Chemical compound [Zn+2].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KHADWTWCQJVOQO-UHFFFAOYSA-N 0.000 claims description 2
- -1 derivatives thereof Substances 0.000 claims 1
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 claims 1
- 239000011888 foil Substances 0.000 abstract description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 21
- 229910001416 lithium ion Inorganic materials 0.000 description 21
- 239000000243 solution Substances 0.000 description 16
- 239000003575 carbonaceous material Substances 0.000 description 13
- 239000008151 electrolyte solution Substances 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 229910052719 titanium Inorganic materials 0.000 description 8
- 239000011148 porous material Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000003925 fat Substances 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 229910000365 copper sulfate Inorganic materials 0.000 description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- PEVJCYPAFCUXEZ-UHFFFAOYSA-J dicopper;phosphonato phosphate Chemical compound [Cu+2].[Cu+2].[O-]P([O-])(=O)OP([O-])([O-])=O PEVJCYPAFCUXEZ-UHFFFAOYSA-J 0.000 description 2
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- LEHBURLTIWGHEM-UHFFFAOYSA-N pyridinium chlorochromate Chemical compound [O-][Cr](Cl)(=O)=O.C1=CC=[NH+]C=C1 LEHBURLTIWGHEM-UHFFFAOYSA-N 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
-
- 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
- C25D1/04—Wires; Strips; Foils
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Chemical Treatment Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
【解決手段】本発明の多孔質銅箔の製造方法は、陰極体としての金属の表面にクロム含有成分を施して直接酸化膜を形成する工程と、前記酸化膜に銅をめっきして銅箔を形成する工程と、前記陰極体の表面から前記銅箔を剥離する工程とを含む。
【選択図】図3
Description
[実施例1]
本実施例では、図1の転写装置を使用してクロム含有成分の転写を行う。ここで、クロム含有成分としてはクロム酸を用いる。実施例1−1〜1−5ではそれぞれ濃度が1.2、0.5、2.0、3.0、5.0g/Lであるクロム酸を使用し、100mL/hrの流量でポリ塩化ビニル管である注入素子3に注入し、注入素子3の孔31からクロム酸をスポンジ22に均一に滴らせて、さらにスポンジによって陰極体の表面に転写する。
めっき液成分:
硫酸銅濃度:290g/L
硫酸濃度:100g/L
電解液温度:40℃
電流密度:33A/dm2
[実施例2]
クロム含有成分として濃度が1.2g/Lである重クロム酸ナトリウムを使用する以外は、実施例1と同様の装置及び操作条件を使用する。
3…注入素子 6…電解槽
7…電解液 8…陽極体
11…剥離装置 12…銅箔
13…巻取装置 14…電解液供給管
21…金属ローラー 22、52…スポンジ
31…孔 32…管体
51…金属管 53…通孔
Claims (11)
- 多孔質銅箔の製造方法であって、
(a)陰極体としての金属の表面にクロム含有成分を施して直接酸化膜を形成する工程と、
(b)前記酸化膜に銅をめっきして銅箔を形成する工程と、
(c)前記陰極体の表面から前記銅箔を剥離する工程と、
を含むことを特徴とする多孔質銅箔の製造方法。 - 前記工程(a)は、前記クロム含有成分を転写により前記金属の表面に施し、且つ、前記工程(b)は、前記工程(a)が施された後に直接行われることを特徴とする請求項1に記載の多孔質銅箔の製造方法。
- 前記工程(a)は、前記金属の表面に電圧を印加しない条件下で行われることを特徴とする請求項1に記載の多孔質銅箔の製造方法。
- 前記クロム含有成分は、クロム酸、重クロム酸、それらの誘導体、及びそれらの混合物から選ばれる一つであることを特徴とする請求項1に記載の多孔質銅箔の製造方法。
- 前記クロム含有成分は、クロム酸、重クロム酸、三酸化クロム、重クロム酸カリウム、重クロム酸セシウム、重クロム酸ナトリウム、重クロム酸亜鉛、重クロム酸バリウム、クロム酸鉛及びそれらの混合物から選ばれる一つであることを特徴とする請求項1に記載の多孔質銅箔の製造方法。
- 前記クロム含有成分は、金属ローラー、前記ローラーの表面を被覆したスポンジ及び注入素子を含む装置によって、前記金属の表面に転写されることを特徴とする請求項1又は2に記載の多孔質銅箔の製造方法。
- 前記注入素子を前記スポンジの上方に設置することにより、前記クロム含有成分を前記スポンジに注入することを特徴とする請求項6に記載の多孔質銅箔の製造方法。
- 前記装置における前記スポンジを前記金属の表面と接触させることにより、前記クロム含有成分を前記金属の表面に転写することを特徴とする請求項6又は7に記載の多孔質銅箔の製造方法。
- 前記工程(a)の前記クロム含有成分は、表面にスポンジが被覆され且つ複数の通孔を有する金属管を含む装置によって、前記金属の表面に転写されることを特徴とする請求項1又は2に記載の多孔質銅箔の製造方法。
- 前記装置における前記金属管表面を被覆する前記スポンジを前記金属の表面と接触させることにより、前記金属管に注入された前記クロム含有成分を、前記金属管の通孔から流出させて前記スポンジに吸着させた後、前記金属の表面に転写することを特徴とする請求項9に記載の多孔質銅箔の製造方法。
- 前記剥離工程の後に、前記銅箔に防錆処理を行う工程をさらに含むことを特徴とする請求項1に記載の多孔質銅箔の製造方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW099138304A TWI417424B (zh) | 2010-11-08 | 2010-11-08 | 多孔性銅箔之製造方法 |
| TW099138304 | 2010-11-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012102400A true JP2012102400A (ja) | 2012-05-31 |
| JP5613138B2 JP5613138B2 (ja) | 2014-10-22 |
Family
ID=46018581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011243426A Active JP5613138B2 (ja) | 2010-11-08 | 2011-11-07 | 多孔質銅箔の製造方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9365940B2 (ja) |
| JP (1) | JP5613138B2 (ja) |
| KR (1) | KR101246584B1 (ja) |
| MY (1) | MY170613A (ja) |
| TW (1) | TWI417424B (ja) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818503A (zh) * | 2015-04-15 | 2015-08-05 | 同济大学 | 一种三维网络结构多孔铜全透膜的制备方法 |
| KR101809985B1 (ko) * | 2017-03-30 | 2017-12-18 | 와이엠티 주식회사 | 다공성 구리박의 제조방법 및 이를 이용한 다공성 구리박 |
| CN109440140B (zh) * | 2018-11-22 | 2020-08-11 | 浙江大学 | 一种电解铜箔的制造方法 |
| CN109728254B (zh) * | 2018-12-03 | 2020-08-11 | 浙江大学 | 一种锂离子电池负极用多孔铜箔的制备技术 |
| US10581081B1 (en) | 2019-02-01 | 2020-03-03 | Chang Chun Petrochemical Co., Ltd. | Copper foil for negative electrode current collector of lithium ion secondary battery |
| KR102454686B1 (ko) * | 2020-12-30 | 2022-10-13 | 에스케이씨 주식회사 | 표면 처리 동박 및 이를 포함하는 회로 기판 |
| CN113802156B (zh) * | 2021-11-05 | 2022-06-03 | 广东嘉元科技股份有限公司 | 一种带有清洁组件的电解铜箔生产设备及其生产工艺 |
| CN114045537A (zh) * | 2021-12-17 | 2022-02-15 | 江西麦得豪新材料有限公司 | 一种新型的电解铜箔生箔机 |
| CN115787028A (zh) * | 2022-11-21 | 2023-03-14 | 灵宝宝鑫电子科技有限公司 | 一种多孔铜箔的制造方法及其专用设备 |
| CN116065204B (zh) * | 2023-02-21 | 2025-09-16 | 宜兴申联机械制造有限公司 | 一种制备微孔铜箔的设备 |
| KR102879700B1 (ko) | 2023-07-13 | 2025-10-30 | 동아대학교 산학협력단 | 다공성 구조를 갖는 구리박의 제조방법 |
| KR20250055685A (ko) | 2023-10-18 | 2025-04-25 | 동아대학교 산학협력단 | 고연신율을 갖는 동박 및 이의 제조방법 |
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| JP2008277376A (ja) * | 2007-04-26 | 2008-11-13 | Toppan Printing Co Ltd | 電磁波遮蔽用の金属メッシュシートおよびその製造方法 |
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| JP2000340911A (ja) | 1999-05-25 | 2000-12-08 | Mitsui Mining & Smelting Co Ltd | プリント配線板用銅箔 |
| US6346335B1 (en) * | 2000-03-10 | 2002-02-12 | Olin Corporation | Copper foil composite including a release layer |
| US7026059B2 (en) * | 2000-09-22 | 2006-04-11 | Circuit Foil Japan Co., Ltd. | Copper foil for high-density ultrafine printed wiring boad |
| US7838154B2 (en) * | 2004-09-09 | 2010-11-23 | Mitsui Mining & Smelting Co., Ltd. | Negative electrode for nonaqueous secondary battery |
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2010
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- 2011-01-11 US US13/004,310 patent/US9365940B2/en active Active
- 2011-11-07 JP JP2011243426A patent/JP5613138B2/ja active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201219606A (en) | 2012-05-16 |
| MY170613A (en) | 2019-08-21 |
| KR20120049105A (ko) | 2012-05-16 |
| US9365940B2 (en) | 2016-06-14 |
| KR101246584B1 (ko) | 2013-03-25 |
| JP5613138B2 (ja) | 2014-10-22 |
| US20120111733A1 (en) | 2012-05-10 |
| TWI417424B (zh) | 2013-12-01 |
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