WO2012150837A2 - 양극 활물질 입자의 표면 처리 방법 및 이로부터 형성된 양극 활물질 입자 - Google Patents
양극 활물질 입자의 표면 처리 방법 및 이로부터 형성된 양극 활물질 입자 Download PDFInfo
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- WO2012150837A2 WO2012150837A2 PCT/KR2012/003502 KR2012003502W WO2012150837A2 WO 2012150837 A2 WO2012150837 A2 WO 2012150837A2 KR 2012003502 W KR2012003502 W KR 2012003502W WO 2012150837 A2 WO2012150837 A2 WO 2012150837A2
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- active material
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/02—Oxides; Hydroxides
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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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
- H01M4/36—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
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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
- H01M4/36—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
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
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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
- H01M4/36—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
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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
- H01M4/36—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
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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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
Definitions
- the present invention relates to a method for treating the surface of the positive electrode active material particles and the positive electrode active material particles formed therefrom, and more particularly, to a method for treating the surface of the positive electrode active material particles for lithium secondary batteries using plasma gas and to the positive electrode active material particles formed therefrom will be.
- Lithium impurities such as LiOH and LiCO 3 are present on the surface of the positive electrode active material particles used in the lithium secondary battery. When these impurities are present in excess, they may not only affect the change over time in the manufacturing process of the electrode slurry during the electrode manufacturing process of the lithium secondary battery, but also react with the electrolyte injected into the lithium secondary battery, in particular, the square / polymer lithium secondary battery.
- the swelling phenomenon that is, swelling phenomenon may occur.
- the present invention has been made in view of the above problems, and has an object to improve the physical properties of the positive electrode active material by removing the lithium impurities present on the surface of the positive electrode active material particles for lithium secondary batteries.
- a method for treating a surface of a cathode active material particle comprising: (a) preparing a cathode active material for a lithium secondary battery comprising a lithium compound; (b) generating a plasma using a gas comprising at least one of a gas having a florin group (F) and a gas containing phosphorus (P) as at least part of the reaction gas; And (c) removing the lithium impurities present on the surface of the particles forming the cathode active material using the plasma.
- the lithium compound is LiCoO 2 , LiNiO 2 , LiMn 2 O 4 , LiFePO 4 , LiFe 1-x Mn x PO 4 , LiNi 1-xy Mn x Co y O 2 (0 ⁇ x ⁇ 1, 0 ⁇ y ⁇ 1) or LiNi 1-xyz Co x M1 y M2 z O 2
- M1 and M2 are independently of each other Al, Ni, Co, Fe, Mn, V, Cr, Ti, W, Ta, Ma and Mo
- the reaction gas is a gas having the florin group And a gas containing at least one of a compound containing hydrogen, oxygen, a hydrocarbon, and a halogen group element, in addition to a gas containing phosphorus.
- the gas having the florin group may be SF 6 .
- the phosphorus-containing gas may include at least one selected from PH 3 , P (CH 3 ) 3, and PF 3 .
- the hydrocarbon may be CH 4 .
- the gas may further include a carrier gas made of an inert gas in addition to the reaction gas.
- the carrier gas may include at least one selected from nitrogen, argon, helium, and neon.
- the reaction gas may include SF 6 and CH 4 , and the carrier gas may include N 2 .
- the lithium impurity may include at least one of LiOH and Li 2 CO 3 .
- Step (b) may be performed using any one of a capacitively-coupled plasma (CCP) type plasma apparatus, an inductively-coupled plasma (ICP) type plasma apparatus, a DC plasma apparatus, and a dielectric barrier discharge (DBD) plasma apparatus.
- CCP capacitively-coupled plasma
- ICP inductively-coupled plasma
- DC plasma apparatus DC plasma apparatus
- DBD dielectric barrier discharge
- Step (c) may include modifying at least some of the lithium impurities with LiF.
- the step (c) may further include sputtering at least some of the lithium impurities using the accelerated ions of the plasma.
- the positive electrode active material according to the present invention for achieving the above technical problem is manufactured according to the surface treatment method of the positive electrode active material particles described above.
- the positive electrode active material according to the present invention for achieving the above technical problem made of a lithium compound, the amount of lithium impurities including LiOH and Li 2 CO 3 present on the surface of the particles is 0.3wt compared to the weight of the particles Less than%.
- the ions generated in the plasma reacts with lithium impurities present on the surface of the positive electrode active material particles so that the lithium impurities are modified with another material that does not cause side reactions with the electrolyte solution, thereby suppressing side reactions with the electrolyte solution. can do.
- the ions generated and accelerated in the plasma may be prevented from causing side reactions with the electrolyte by sputtering lithium impurities or modified lithium impurities to be removed from the surface of the positive electrode active material particles.
- FIG. 1 is a flow chart showing a surface treatment method of the positive electrode active material particles according to the present invention.
- FIG. 2 is a schematic diagram showing ions generated in the plasma apparatus striking lithium impurities present on the surface of the cathode active material particles.
- 3A is a hydrochloric acid titration graph (pH 4 or more) of the surface of the positive electrode active material particles according to Example 1 of the present invention.
- 3B is a hydrochloric acid titration graph (pH 5 or less) of the surface of the positive electrode active material particles surface treated according to Example 1 of the present invention.
- 4A is a photograph showing the surface of the positive electrode active material particles before the plasma treatment.
- 4B is a photograph showing the surface of the positive electrode active material particles after the plasma treatment.
- Example 5 is a hydrochloric acid titration graph (pH 5 or more) of the surface of the positive electrode active material particles according to Example 2 of the present invention.
- 1 is a flowchart showing a surface treatment method of positive electrode active material particles.
- the method for treating the surface of the cathode active material particles according to the present invention includes preparing a cathode active material for a lithium secondary battery (S1), generating a plasma (S2), and removing lithium impurities (S3). Include.
- the step S1 is a step of preparing a cathode active material for a lithium secondary battery to be subjected to plasma treatment.
- the cathode active material any cathode active material used in a lithium secondary battery may be used.
- the positive electrode active material include lithium manganese oxide, lithium cobalt oxide, lithium nickel oxide, lithium iron oxide or a lithium composite oxide in combination thereof.
- the step S2 is a step of generating a plasma for treating the surface of the particles forming the positive electrode active material prepared in step S1.
- a reaction gas including at least one of a hydrogen, oxygen, a compound containing a halogen group, a compound containing phosphorus (P), and a hydrocarbon may be used, and additionally nitrogen, argon, helium and Carrier gases comprising at least one of inert gases such as neon may be further mixed.
- a gas having a florin group (F) such as SF 6 may be used, and as the compound containing phosphorus, for example, PH 3 , P (CH 3 3 ) and gases such as PF 3 may be used.
- the plasma apparatus used for generating the plasma is not particularly limited, and in the present invention, for example, a capacitively-coupled plasma (CCP) plasma apparatus, an inductively-coupled plasma (ICP) plasma apparatus, a DC plasma apparatus or a DBD ( dielectric barrier discharge) plasma apparatus and the like can be used.
- CCP capacitively-coupled plasma
- ICP inductively-coupled plasma
- DC plasma apparatus DC plasma apparatus
- DBD dielectric barrier discharge
- the step S3 is a step of removing lithium impurities present on the surface of the positive electrode active material particles by surface-treating the particles forming the positive electrode active material prepared in S1 using the plasma generated in S2.
- lithium impurities such as LiOH and LiCO 3 are present on the surface of the cathode active material particles.
- the lithium impurities are reacted with an electrolyte such as LiF by reacting ions generated in the plasma with lithium impurities.
- Lithium impurities can be removed by modifying them with other materials that do not cause them.
- by sputtering lithium impurities or modified lithium impurities using ions generated and accelerated in the plasma it may be removed from the surface of the positive electrode active material particles.
- the amount of lithium impurities present on the surface of the particles is preferably less than 0.3 wt% based on the total weight of the positive electrode active material particles. This is because lithium impurities such as LiOH and LiCO 3 have a high reactivity with respect to the electrolyte, and thus, excessive swelling may occur when the amount of lithium impurities present on the surface of the particles of the positive electrode active material is 0.3 wt% or more. to be.
- Example 1 Ni / Mn / Co tricomponent positive electrode active material particles having a Li (Ni 0.8 Mn 0.1 Co 0.1 ) O 2 composition were plasma-treated using a CCP plasma apparatus.
- a positive electrode active material having a Li (Ni 0.8 Mn 0.1 Co 0.1 ) O 2 composition can realize a small capacity because of high Ni content, but has a high reactivity with an electrolyte because an excessive amount of lithium impurities are present on the surface. Therefore, there is a problem that the swelling phenomenon of the battery cell is intensified, and this phenomenon is particularly prominent at high temperature.
- the surface of the positive electrode active material particles having a composition of Li (Ni 0.8 Mn 0.1 Co 0.1 ) O 2 was subjected to plasma treatment under the following conditions.
- the amount of surface impurities remaining on the surface of the positive electrode active material after the plasma treatment can be obtained by hydrochloric acid titration, and a detailed method thereof is described in US2009 / 0226810A1, and thus a detailed description thereof will be omitted.
- FIG. 3B a hydrochloric acid titration curve at pH5 or lower is shown after plasma treatment, which tends to coincide with the hydrochloric acid titration curve of LiF.
- the material newly generated by the plasma treatment is LiF.
- 4A and 4B are photographs showing the surface of the positive electrode active material particles before and after the plasma treatment, respectively.
- Table 1 below shows the amount of lithium impurities before the plasma treatment and the amount of lithium impurities after the plasma treatment.
- the amount of impurities present on the surface of the cathode active material particles after the plasma treatment was reduced by about 44% compared to the amount of impurities present before the plasma treatment.
- Example 2 Ni / Mn / Co tricomponent positive electrode active material particles having a Li (Ni 0.6 Mn 0.2 Co 0.2 ) O 2 composition were plasma-treated using a CCP plasma apparatus.
- the surface of the positive electrode active material particles having the composition of Li (Ni 0.6 Mn 0.2 Co 0.2 ) O 2 is the same as that of Example 1 Plasma treatment was performed under the conditions.
- the amount of hydrochloric acid used after the plasma treatment is less than the amount of hydrochloric acid used before the plasma treatment. This means that the amount of lithium impurities such as LiOH and LiCO 3 , which were present in a large amount on the surface of the cathode active material before the plasma treatment, was reduced after the plasma treatment, as in Example 1 described above.
- Table 2 below shows the amount of lithium impurities before the plasma treatment and the amount of lithium impurities after the plasma treatment are reduced.
- the amount of impurities present on the surface of the cathode active material particles after the plasma treatment decreased by about 36% compared to the amount of impurities present before the plasma treatment.
- the surface treatment method of the positive electrode active material particles according to the present invention can reduce the amount of lithium impurities present on the surface of the positive electrode active material particles, thereby reducing the swelling phenomenon of the battery cell to which the positive electrode active material is applied Can be obtained.
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Abstract
Description
Claims (15)
- (a) 리튬 화합물로 이루어지는 리튬 이차전지용 양극 활물질을 준비하는 단계;(b) 반응 가스의 적어도 일부로서 플로린기(F)를 갖는 기체 및 인(P)을 함유하는 기체 중 적어도 어느 하나를 포함하는 가스를 이용하여 플라즈마를 생성하는 단계; 및(c) 상기 플라즈마를 이용하여 상기 양극 활물질을 이루는 입자의 표면에 존재하는 리튬 불순물을 제거하는 단계를 포함하는 양극 활물질 입자의 표면 처리 방법.
- 제1항에 있어서,상기 리튬 화합물은,LiCoO2, LiNiO2, LiMn2O4, LiFePO4, LiFe1-xMnxPO4, LiNi1-x-yMnxCoyO2(0≤x<1, 0≤y<1) 또는 LiNi1-x-y-zCoxM1yM2zO2(M1 및 M2는 서로 독립적으로 Al, Ni, Co, Fe, Mn, V, Cr, Ti, W, Ta, Ma 및 Mo로 이루어진 군으로부터 선택된 적어도 어느 하나이고, x, y, z는 서로 독립적으로 산화물 조성 원소들의 원자분율로서 0≤x<1, 0≤y<1, 0≤z<1임) 중 선택된 어느 하나인 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제1항에 있어서,상기 반응 가스는,상기 플로린기를 갖는 기체 및 인을 함유하는 기체 이외에 수소, 산소, 탄화수소, 할로겐족 원소를 포함하는 화합물 중 적어도 어느 하나의 기체를 더 포함하는 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제1항에 있어서,상기 플로린기를 갖는 기체는,SF6 인 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제1항에 있어서,상기 인을 함유하는 기체는,PH3, P(CH3)3 및 PF3 중 선택된 적어도 어느 하나를 포함하는 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제3항에 있어서,상기 탄화수소는,CH4 인 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제1항에 있어서,상기 가스는,상기 반응 가스 이외에 비활성 기체로 이루어지는 캐리어 가스를 더 포함하는 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제7항에 있어서,상기 캐리어 가스는,질소, 아르곤, 헬륨 및 네온 중 선택된 적어도 어느 하나를 포함하는 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제7항에 있어서,상기 반응 가스는 SF6 및 CH4 를 포함하고,상기 캐리어 가스는 N2 를 포함하는 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제1항에 있어서,상기 리튬 불순물은,LiOH 및 Li2CO3 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제1항에 있어서,상기 (b)단계는,CCP(Capacitively-coupled plasma)형 플라즈마 장치 또는 ICP(Inductively-coupled plasma)형 플라즈마 장치, DC 플라즈마 장치 및 DBD(dielectric barrier discharge) 플라즈마 장치 중 어느 하나를 이용하여 수행되는 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제1항에 있어서,상기 (c)단계는,상기 리튬 불순물 중 적어도 일부를 LiF 로 개질시키는 단계를 포함하는 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제12항에 있어서,상기 (c)단계는,상기 플라즈마의 가속화된 이온을 이용하여 상기 리튬 불순물 중 적어도 일부를 스퍼터링(sputtering)시키는 단계를 더 포함하는 것을 특징으로 하는 양극 활물질 입자의 표면 처리 방법.
- 제1항 내지 제13항 중 어느 한 항에 따른 양극 활물질 입자의 표면 처리 방법에 따라 제조되는 양극 활물질.
- 리튬 화합물로 이루어지는 양극 활물질로서,입자의 표면에 존재하는 LiOH 및 Li2CO3 을 포함하는 리튬 불순물의 양이 상기 입자의 중량 대비 0.3wt% 미만인 것을 특징으로 하는 양극 활물질.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014506344A JP5813209B2 (ja) | 2011-05-03 | 2012-05-03 | 正極活物質粒子の表面処理方法及びこれより形成された正極活物質粒子 |
| CN201280021584.XA CN103503203B (zh) | 2011-05-03 | 2012-05-03 | 正极活性材料的表面处理方法和由其形成的正极活性材料 |
| EP12779849.4A EP2706597B1 (en) | 2011-05-03 | 2012-05-03 | Surface processing method for cathode active material particles |
| US14/050,990 US9776879B2 (en) | 2011-05-03 | 2013-10-10 | Surface-treatment method of cathode active material and cathode active material formed therefrom |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0042034 | 2011-05-03 | ||
| KR20110042034 | 2011-05-03 | ||
| KR20120043934A KR101492175B1 (ko) | 2011-05-03 | 2012-04-26 | 양극 활물질 입자의 표면 처리 방법 및 이로부터 형성된 양극 활물질 입자 |
| KR10-2012-0043934 | 2012-04-26 |
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| US14/050,990 Continuation US9776879B2 (en) | 2011-05-03 | 2013-10-10 | Surface-treatment method of cathode active material and cathode active material formed therefrom |
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| Publication Number | Publication Date |
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| WO2012150837A2 true WO2012150837A2 (ko) | 2012-11-08 |
| WO2012150837A9 WO2012150837A9 (ko) | 2012-12-20 |
| WO2012150837A3 WO2012150837A3 (ko) | 2013-02-21 |
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| PCT/KR2012/003502 Ceased WO2012150837A2 (ko) | 2011-05-03 | 2012-05-03 | 양극 활물질 입자의 표면 처리 방법 및 이로부터 형성된 양극 활물질 입자 |
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| Country | Link |
|---|---|
| US (1) | US9776879B2 (ko) |
| EP (1) | EP2706597B1 (ko) |
| JP (1) | JP5813209B2 (ko) |
| KR (1) | KR101492175B1 (ko) |
| CN (1) | CN103503203B (ko) |
| WO (1) | WO2012150837A2 (ko) |
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| JP2015056368A (ja) * | 2013-09-13 | 2015-03-23 | 住友金属鉱山株式会社 | 非水系電解質二次電池用正極活物質とその製造方法 |
| US10388944B2 (en) * | 2014-10-06 | 2019-08-20 | Hitachi Metals, Ltd. | Positive electrode active material for lithium ion secondary battery, and positive electrode for lithium ion secondary battery and lithium ion secondary battery comprising the same |
| CN114094103A (zh) * | 2021-11-16 | 2022-02-25 | 江苏超电新能源科技发展有限公司 | 掺杂氟和硫的锂电池电极导电剂材料的制备方法及其用途 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282884A (zh) * | 2013-07-05 | 2015-01-14 | 深圳市大成精密设备有限公司 | 一种利用等离子去除锂电池电极片铝屑的处理工艺及装置 |
| JP2015056368A (ja) * | 2013-09-13 | 2015-03-23 | 住友金属鉱山株式会社 | 非水系電解質二次電池用正極活物質とその製造方法 |
| US10388944B2 (en) * | 2014-10-06 | 2019-08-20 | Hitachi Metals, Ltd. | Positive electrode active material for lithium ion secondary battery, and positive electrode for lithium ion secondary battery and lithium ion secondary battery comprising the same |
| CN114094103A (zh) * | 2021-11-16 | 2022-02-25 | 江苏超电新能源科技发展有限公司 | 掺杂氟和硫的锂电池电极导电剂材料的制备方法及其用途 |
| CN114094103B (zh) * | 2021-11-16 | 2024-05-03 | 江苏超电新能源科技发展有限公司 | 掺杂氟和硫的锂电池电极导电剂材料的制备方法及其用途 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140050656A1 (en) | 2014-02-20 |
| EP2706597A1 (en) | 2014-03-12 |
| KR20120124355A (ko) | 2012-11-13 |
| CN103503203A (zh) | 2014-01-08 |
| JP2014514721A (ja) | 2014-06-19 |
| WO2012150837A3 (ko) | 2013-02-21 |
| EP2706597B1 (en) | 2016-08-31 |
| WO2012150837A9 (ko) | 2012-12-20 |
| CN103503203B (zh) | 2016-04-20 |
| EP2706597A4 (en) | 2014-10-08 |
| US9776879B2 (en) | 2017-10-03 |
| KR101492175B1 (ko) | 2015-02-10 |
| JP5813209B2 (ja) | 2015-11-17 |
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