JP6525279B2 - リチウムマンガン複合酸化物の製造方法 - Google Patents
リチウムマンガン複合酸化物の製造方法 Download PDFInfo
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- JP6525279B2 JP6525279B2 JP2016221712A JP2016221712A JP6525279B2 JP 6525279 B2 JP6525279 B2 JP 6525279B2 JP 2016221712 A JP2016221712 A JP 2016221712A JP 2016221712 A JP2016221712 A JP 2016221712A JP 6525279 B2 JP6525279 B2 JP 6525279B2
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- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 title claims description 32
- 239000002131 composite material Substances 0.000 title claims description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000011164 primary particle Substances 0.000 claims description 36
- 239000011163 secondary particle Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 8
- 150000002642 lithium compounds Chemical class 0.000 claims description 7
- 150000002697 manganese compounds Chemical class 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011572 manganese Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000001694 spray drying Methods 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 229910021445 lithium manganese complex oxide Inorganic materials 0.000 description 10
- 229910052744 lithium Inorganic materials 0.000 description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- 239000011149 active material Substances 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- -1 organic acid salts Chemical class 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
- C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
- C01G45/1242—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type [Mn2O4]-, e.g. LiMn2O4, Li[MxMn2-x]O4
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/40—Cobaltates
- C01G51/42—Cobaltates containing alkali metals, e.g. LiCoO2
- C01G51/44—Cobaltates containing alkali metals, e.g. LiCoO2 containing manganese
- C01G51/52—Cobaltates containing alkali metals, e.g. LiCoO2 containing manganese of the type [Mn2O4]2-, e.g. Li2(CoxMn2-x)O4, Li2(MyCoxMn2-x-y)O4
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/40—Nickelates
- C01G53/42—Nickelates containing alkali metals, e.g. LiNiO2
- C01G53/44—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese
- C01G53/52—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese of the type [Mn2O4]2-, e.g. Li2(NixMn2-x)O4, Li2(MyNixMn2-x-y)O4
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/39—Particle morphology extending in three dimensions parallelepiped-like
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/50—Agglomerated particles
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
複数の一次粒子が凝集してなる二次粒子であって、
前記一次粒子は凸多面体状であり、前記凸多面体を構成する多角形の対頂角(内角)の大きさが90°乃至120°であることを特徴とする一次粒子の対頂角の大きさが調整されたリチウムマンガン複合酸化物を提供する。
前記混合物を粒径(D 50 )が0.5μm以下、粘度が500cp以下になるまで攪拌し粉砕して一次粒子を形成する段階と、
前記粉砕された混合物を噴霧乾燥させて球形の二次粒子を形成する段階と、
840℃乃至890℃の温度で熱処理する段階とを備え、
前記二次粒子は、LiaMn2−b Al bO4−d F d(1≦a≦1.2、0≦b≦0.2、0≦d≦0.65である)で表示され、
前記一次粒子は90°乃至120°の内角を有するリチウムマンガン複合酸化物の製造方法を提供する。
マンガン化合物としてMn3O4、リチウム化合物としてLi2CO3、M化合物としてAl(OH)3、X化合物としてLiFを当量比で蒸留水に入れ混合した後、攪拌機において400rpMで5分間攪拌した。以降、湿式粉砕装置(NANOINTECH社)を用いて粒子の粒径(D50)が0.5μm以下、粘度は500cp以下になるまで粉砕した。
X化合物としてのLiFを添加しないことを除いては、上記実施例1と同様にしてリチウムマンガン複合酸化物を製造した。
前記実施例及び比較例で得られたリチウムマンガン複合酸化物のSEM写真をそれぞれで測定し、その結果を図3に示した。
前記実施例及び比較例で得られたリチウムマンガン複合酸化物の二次粒子に対して、任意に10個の一次粒子を選択し、各々の一次粒子を構成する多角形に対して対頂角を測定した結果を下記表1に示した。
前記実施例1で得られたリチウムマンガン複合酸化物の試料70重量%、黒鉛粉末20重量%、ポリフッ化ビニリデン10重量%を混合して正極合剤とし、これをNメチル-2-ピロリジノンに分散させて混練ペーストを調製した。前記混練ペーストをアルミホイルに塗布した後、乾燥及びプレスし、直径15mmの円盤を押出して正極板を得た。この正極板を使用してセパレーター、負極、集電板、取付金具、外部端子、電解液等の各部材を使用してリチウム二次電池を製造した。負極としては、結晶化度の高いカーボンを使用し、電解液としては、エチルメチルカーボネートとエチレンカーボネートとの1:1混合液1リットルにLiPF6を溶解したものを使用した。
50℃において、正極に対して0.5mA/cm2で4.3Vまで充電した後、3.5Vまで放電させる充放電を1サイクル行って、放電容量を測定した。最初の1サイクルの放電容量を初期放電容量とし、図4に示した。
前記充放電を常温と高温(45℃)とで80サイクルの間行い、放電容量を測定して寿命特性を測定し、その結果を図5および図6に示した。
じないようにするため、電池特性を改善する効果を奏する。
Claims (1)
- リチウム化合物、マンガン化合物、Al(OH) 3 及びLiFを溶媒に入れて混合する段階と、
前記混合物を粒径(D 50 )が0.5μm以下、粘度が500cp以下になるまで攪拌し粉砕して一次粒子を形成する段階と、
前記粉砕された混合物を噴霧乾燥させて球形の二次粒子を形成する段階と、
840℃乃至890℃の温度で熱処理する段階とを備え、
前記二次粒子は、LiaMn2−b Al bO4−d F d(1≦a≦1.2、0≦b≦0.2、0≦d≦0.65である)で表示され、
前記一次粒子は90°乃至120°の内角を有するリチウムマンガン複合酸化物の製造方法。
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KR10-2012-0129730 | 2012-11-15 | ||
KR1020120129730A KR101409973B1 (ko) | 2012-11-15 | 2012-11-15 | 1차 입자의 꼭지각의 크기가 조절된 리튬 망간 복합 산화물, 및 이의 제조 방법 |
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CN113912137B (zh) * | 2021-10-09 | 2024-01-19 | 宁波容百新能源科技股份有限公司 | 一种富多面体的复合相前驱体及其制备方法和富锂正极材料 |
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JP3944899B2 (ja) * | 2001-12-27 | 2007-07-18 | 株式会社ジーエス・ユアサコーポレーション | 非水系二次電池 |
JP4254267B2 (ja) * | 2002-02-21 | 2009-04-15 | 東ソー株式会社 | リチウムマンガン複合酸化物顆粒二次粒子及びその製造方法並びにその用途 |
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AU2008319749B2 (en) * | 2007-11-01 | 2012-10-18 | Agc Seimi Chemical Co., Ltd. | Granulated powder of transition metal compound for raw material for positive electrode active material of lithium secondary battery, and method for producing the same |
KR101115416B1 (ko) * | 2009-06-08 | 2012-02-15 | 한양대학교 산학협력단 | 리튬 이차 전지용 양극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 |
KR101503436B1 (ko) * | 2009-10-23 | 2015-03-17 | 주식회사 포스코이에스엠 | 리튬-니켈-코발트-망간계 복합 산화물의 제조 방법, 이에 의하여 제조된 리튬-니켈-코발트-망간계 복합 산화물 및 이를 포함하는 리튬 이차 전지 |
KR20110044936A (ko) * | 2009-10-25 | 2011-05-03 | 주식회사 휘닉스소재 | 리튬 이온 전지용 리튬 망간 복합 산화물의 제조 방법, 그 제조 방법에 의하여 제조된 리튬 이온 전지용 리튬 망간 복합 산화물, 및 이를 포함하는 리튬 이온 이차 전지 |
KR101520903B1 (ko) * | 2010-03-29 | 2015-05-18 | 주식회사 포스코이에스엠 | 리튬 이온 이차 전지용 리튬 망간 복합 산화물의 제조 방법, 그 제조 방법에 의하여 제조된 리튬 이온 이차 전지용 리튬 망간 복합 산화물, 및 이를 포함하는 리튬 이온 이차 전지 |
JP5557715B2 (ja) * | 2010-12-06 | 2014-07-23 | 株式会社日立製作所 | リチウムイオン二次電池用正極材料およびその製造方法,リチウムイオン二次電池用正極活物質,リチウムイオン二次電池用正極,リチウムイオン二次電池 |
KR101250496B1 (ko) * | 2011-02-18 | 2013-04-03 | 에스케이씨 주식회사 | 비수계 리튬이차전지용 양극재료 및 그의 제조 방법 |
CN103249678B (zh) * | 2011-03-28 | 2016-06-15 | 住友金属矿山株式会社 | 镍锰复合氢氧化物粒子及其制造方法、非水系电解质二次电池用正极活性物质及其制造方法、以及非水系电解质二次电池 |
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2012
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- 2012-11-28 EP EP12888292.5A patent/EP2887432A4/en not_active Withdrawn
- 2012-11-28 JP JP2015508843A patent/JP2015515442A/ja active Pending
- 2012-11-28 US US14/410,877 patent/US20150329374A1/en not_active Abandoned
- 2012-11-28 CA CA2877109A patent/CA2877109A1/en not_active Abandoned
- 2012-11-28 WO PCT/KR2012/010165 patent/WO2014077445A1/ko active Application Filing
- 2012-11-28 CN CN201280072542.9A patent/CN104285321A/zh active Pending
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KR20140062858A (ko) | 2014-05-26 |
CN104285321A (zh) | 2015-01-14 |
US20150329374A1 (en) | 2015-11-19 |
KR101409973B1 (ko) | 2014-06-19 |
CA2877109A1 (en) | 2014-05-22 |
EP2887432A1 (en) | 2015-06-24 |
WO2014077445A1 (ko) | 2014-05-22 |
EP2887432A4 (en) | 2016-02-10 |
JP2017061409A (ja) | 2017-03-30 |
JP2015515442A (ja) | 2015-05-28 |
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