WO2013165150A1 - 리튬 복합 전이금속 산화물 제조용 전구체 및 그 제조방법 - Google Patents
리튬 복합 전이금속 산화물 제조용 전구체 및 그 제조방법 Download PDFInfo
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- WO2013165150A1 WO2013165150A1 PCT/KR2013/003714 KR2013003714W WO2013165150A1 WO 2013165150 A1 WO2013165150 A1 WO 2013165150A1 KR 2013003714 W KR2013003714 W KR 2013003714W WO 2013165150 A1 WO2013165150 A1 WO 2013165150A1
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/02—Oxides; Hydroxides
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/006—Compounds containing, besides nickel, two or more other elements, with the exception of oxygen or hydrogen
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- 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
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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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
- H01M4/362—Composites
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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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- 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
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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
- lithium nickel oxide LiNiO while the second place is the cost is cheaper than the cobalt-based oxide, when filled with a 4.25V, the capacity of the bar, the reversible capacity of doped LiNiO 2 LiCoO 2 is showing a high discharge capacity (about 153 mAh / g) in excess of about 200 mAh / g.
- a high discharge capacity about 153 mAh / g
- commercialized cells containing LiNiO 2 positive electrode active materials have improved energy densities, and thus, in order to develop high capacity batteries, Research is active.
- problems such as high production cost of LiNiO 2 based cathode active material, swelling due to gas generation in a battery, low chemical stability, high pH, etc. have not been sufficiently solved.
- 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.
- the present invention is a transition metal precursor used in the production of a lithium composite transition metal oxide, which is an electrode active material for a lithium secondary battery, comprising a transition metal compound and a hydrocarbon compound represented by the following Formula 1 To provide.
- the composite transition metal compound contains not only manganese but also nickel in a high content, it may be particularly preferably used to prepare a cathode active material for a high capacity lithium secondary battery.
- the nickel content is less than 0.1, it is difficult to form a stable crystal structure, so high capacity is difficult to be expected.
- the content of nickel exceeds 0.5, the safety is greatly reduced. More preferred content may be 0.15 to 0.4.
- the content of cobalt (1- (a '+ c + d)) depends on the content of nickel, manganese, and metal M' (a '+ c + d).
- the content of cobalt is too high, Due to the high content, the cost of the raw material is increased as a whole, the reversible capacity is slightly reduced, and when the content of cobalt is too low, it may be difficult to simultaneously achieve sufficient rate characteristics and high powder density of the battery. Therefore, the content (a '+ c + d) of the nickel, manganese, and metal M' may be preferably 0.8 to 0.95.
- the saccharide material is fructose, sucrose, glucose, galactose, lactose, maltose, starch, and dextrin. It may be one or more selected from the group consisting of, and particularly preferably sucrose (sucrose).
- the transition metal precursor according to the present invention may be prepared by a coprecipitation method using a basic material and a compound containing a transition metal-containing salt and a predetermined hydrocarbon compound.
- the coprecipitation method is a method for preparing two or more transition metal elements simultaneously by using a precipitation reaction in an aqueous solution.
- the transition metal-containing salts are mixed in a desired molar ratio to prepare an aqueous solution, and a predetermined amount of hydrocarbon compound is added as defined above. Thereafter, a strong base such as sodium hydroxide and, optionally, an additive such as an ammonia source may be added, and co-precipitation can be prepared while maintaining the pH at a basic level.
- Manganese sulfate, nickel sulfate, and cobalt sulfate were mixed in a ratio (molar ratio) of 0.5: 0.4: 0.1 to prepare an aqueous solution of a transition metal at a concentration of 1.5 M, to which 2 mol% of sucrose was mixed. Separately, 3M aqueous sodium hydroxide solution was prepared.
- the transition metal aqueous solution was continuously pumped with a metering pump to the tank for the wet reactor at 0.18 L / hr.
- the aqueous sodium hydroxide solution was pumped in conjunction with the control equipment to adjust the pH of the distilled water in the tank, so that the distilled water in the wet reactor tank pH 11.0 ⁇ 11.5. At this time, a 30% concentration of ammonia solution as an additive was continuously pumped together into the reactor at a rate of 0.035 L to 0.04 L / hr.
- a transition metal precursor was prepared in the same manner as in Example 1, except that 5 mol% of sucrose was mixed with the aqueous transition metal solution.
- a transition metal precursor was prepared in the same manner as in Example 1, except that 2 mol% of lactose was mixed with the aqueous transition metal solution.
- a transition metal precursor was prepared in the same manner as in Example 1 except that sucrose was not mixed with the aqueous transition metal solution.
- a transition metal precursor was prepared in the same manner as in Example 1, except that 20 mol% of sucrose was mixed with the aqueous transition metal solution.
- prepared slurry was prepared by mixing Denka as a conductive material and KF1100 as a binder in a weight ratio of 95: 2.5: 2.5 to a cathode active material powder, and uniformly coated on an aluminum foil having a thickness of 20 ⁇ m. This was dried to 130 °C to prepare a positive electrode for a lithium secondary battery.
- the battery evaluation was performed by measuring the charge and discharge capacity in the applied current of 0.1C and the voltage range of 2.75 to 4.75 V, and the discharge capacity and the charge and discharge efficiency results are shown in Table 1 below.
- the charge and discharge characteristics and the rate characteristics of the batteries of the embodiments treated with a specific amount of sucrose in the precursor are improved, and in particular, the battery using the precursor of Example 1 treated with 2 mol% sucrose is optimal. You can see the performance.
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Abstract
Description
Claims (18)
- 리튬 복합 전이금속 산화물의 제조에 사용되는 전이금속 전구체로서, 하기 화학식 1로 표현되는 복합 전이금속 화합물과 탄화수소 화합물을 포함하고 있는 것을 특징으로 하는 전이금속 전구체:MnaMb(OH1-x)2 (1)상기 식에서,M은 Ni, Co, Mn, Al, Cu, Fe, Mg, B, Cr 및 2주기 전이금속들로 이루어진 군에서 선택되는 둘 이상이고;0.4≤a≤1;0≤b≤0.6;a+b≤1;0<x<0.5이다.
- 제 1 항에 있어서, 상기 M은 Ni, 및 Co로 이루어진 군에서 선택되는 하나 이상의 전이금속을 포함하고 있는 것을 특징으로 하는 전이금속 전구체.
- 제 1 항에 있어서, 상기 a는 0.5 이상 내지 1 이하인 것을 특징으로 하는 전이금속 전구체.
- 제 1 항에 있어서, 상기 b는 0.1 이상 내지 0.5 이하인 것을 특징으로 하는 전이금속 전구체.
- 제 1 항에 있어서, 상기 복합 전이금속 화합물은 하기 화학식 2로 표현되는 복합 전이금속 화합물인 것을 특징으로 하는 전이금속 전구체:Mna'NicCo1-(a'+c+d)M'd(OH1-x)2 (2)상기 식에서,0.6≤a'≤1;0.1≤c≤0.5;0≤d≤0.1;a'+c+d≤1;M'는 Al, Mg, Cr, Ti, Si, Cu, Fe 및 Zr로 이루어진 군에서 선택되는 하나 또는 둘 이상이고;x은 제 1 항에서와 정의한 바와 같다.
- 제 1 항에 있어서, 상기 전이금속 전구체의 전체량을 기준으로 상기 복합 전이금속 화합물이 30 중량% 이상으로 함유되어 있는 것을 특징으로 하는 전이금속 전구체.
- 제 1 항에 있어서, 상기 탄화수소 화합물은 당류 물질인 것을 특징으로 하는 전이금속 전구체.
- 제 7 항에 있어서, 상기 당류 물질은 프락토스(fructose), 수크로오스(sucrose), 글루코오스(glucose), 갈락토스(galactose), 락토스(lactose), 말토오스(maltose), 녹말(starch), 및 덱스트린(dextrin)으로 이루어진 군에서 선택되는 하나 이상인 것을 특징으로 하는 전이금속 전구체.
- 제 8 항에 있어서, 상기 당류 물질은 수크로오스(sucrose)인 것을 특징으로 하는 전이금속 전구체.
- 제 1 항에 있어서, 상기 탄화수소 화합물은 전이금속 전구체 전체량을 기준으로 0.1 내지 10 중량%인 것을 특징으로 하는 전이금속 전구체.
- 제 1 항에 있어서, 상기 탄화수소 화합물은 전구체의 내부 및/또는 전구체의 표면에 존재하는 것을 특징으로 하는 전이금속 전구체.
- 제 1 항에 있어서, 상기 전이금속 전구체에는 폐기공(closed pore)가 존재하고, 탄화수소 화합물의 적어도 일부는 상기 폐기공 내에 포함되어 있는 것을 특징으로 하는 전이금속 전구체.
- 제 1 항에 따른 전이금속 전구체를 제조하는 방법으로서,i) 전구체 제조용 전이금속 염을 포함하는 전이금속 수용액을 준비하는 과정;ii) 상기 전이금속 수용액에 전이금속 수용액의 몰 대비 0.01 내지 10 몰%의 탄화수소 화합물을 혼합하는 과정; 및iii) 단계 ii)의 혼합 후 강염기를 첨가하여 공침하는 과정;를 포함하는 것을 특징으로 하는 전이금속 전구체의 제조 방법.
- 제 13 항에 있어서, 상기 전구체 제조용 전이금속 염은 황산염이고, 강염기는 수산화 나트륨인 것을 특징으로 하는 전이금속 전구체의 제조 방법.
- 제 14 항에 있어서, 상기 황산염은 황산 니켈, 황산 코발트 및 황산 망간으로 이루어진 군에서 선택되는 하나 또는 둘 이상인 것을 특징으로 하는 전이금속 전구체의 제조 방법.
- 제 1 항에 따른 전이금속 전구체와 리튬 전구체를 혼합하고 산화 분위기에서 소성하여 제조되는 것을 특징으로 하는 양극 활물질.
- 제 16 항에 있어서, 상기 양극 활물질은 리튬 전이금속 산화물 입자와 상기 입자의 내부 및/또는 표면에 위치하는 탄소를 포함하는 것을 특징으로 하는 양극 활물질.
- 제 16 항에 따른 양극 활물질을 포함하는 것을 특징으로 하는 리튬 이차전지.
Priority Applications (6)
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PL17194994T PL3291339T3 (pl) | 2012-05-04 | 2013-04-30 | Sposób wytwarzania prekursora do wytwarzania kompozytowego tlenku metalu przejściowego na bazie litu |
CN201380020071.1A CN104303345B (zh) | 2012-05-04 | 2013-04-30 | 用于制备锂复合过渡金属氧化物的前体及其制备方法 |
EP13784244.9A EP2846382A4 (en) | 2012-05-04 | 2013-04-30 | PRELIMINARY MANUFACTURER FOR PREPARING A LITHIUM COMPOUND TRANSITION METAL OXIDE AND METHOD FOR PRODUCING THEREOF |
EP17194994.4A EP3291339B1 (en) | 2012-05-04 | 2013-04-30 | Method of preparing a precursor for preparation of lithium composite transition metal oxide |
JP2015504515A JP5905155B2 (ja) | 2012-05-04 | 2013-04-30 | リチウム複合遷移金属酸化物製造用前駆体及びその製造方法 |
US14/504,526 US9601770B2 (en) | 2012-05-04 | 2014-10-02 | Precursor for preparation of lithium composite transition metal oxide and method of preparing the same |
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KR10-2012-0047427 | 2012-05-04 | ||
KR1020120047427A KR101497909B1 (ko) | 2012-05-04 | 2012-05-04 | 리튬 복합 전이금속 산화물 제조용 전구체 및 그 제조방법 |
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EP (2) | EP2846382A4 (ko) |
JP (1) | JP5905155B2 (ko) |
KR (1) | KR101497909B1 (ko) |
CN (1) | CN104303345B (ko) |
PL (1) | PL3291339T3 (ko) |
TW (1) | TWI466830B (ko) |
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JP2015153551A (ja) * | 2014-02-13 | 2015-08-24 | 戸田工業株式会社 | 正極活物質粒子粉末及びその製造方法、並びに非水電解質二次電池 |
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WO2014010862A1 (ko) * | 2012-07-09 | 2014-01-16 | 주식회사 엘지화학 | 리튬 복합 전이금속 산화물 제조용 전구체, 그 제조방법, 및 리튬 복합 전이금속 산화물 |
KR20160099876A (ko) | 2015-02-13 | 2016-08-23 | 주식회사 이엔드디 | 고밀도 니켈―코발트―망간 복합 전구체의 제조 방법 |
EP3412634B1 (en) | 2016-02-03 | 2023-08-23 | Sumitomo Chemical Company, Limited | Transition metal-containing hydroxide, and method for producing lithium-containing composite oxide |
US11302919B2 (en) | 2016-07-20 | 2022-04-12 | Samsung Sdi Co., Ltd. | Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active material |
US11569503B2 (en) | 2016-07-20 | 2023-01-31 | Samsung Sdi Co., Ltd. | Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active material |
CN108183233B (zh) * | 2016-12-08 | 2021-09-03 | 三星Sdi株式会社 | 用于锂二次电池的基于镍的活性材料、其制备方法和包括含其的正极的锂二次电池 |
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Publication number | Publication date |
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EP2846382A1 (en) | 2015-03-11 |
TW201406666A (zh) | 2014-02-16 |
CN104303345B (zh) | 2017-02-22 |
EP3291339A1 (en) | 2018-03-07 |
TWI466830B (zh) | 2015-01-01 |
KR20130123910A (ko) | 2013-11-13 |
EP3291339B1 (en) | 2022-03-02 |
US9601770B2 (en) | 2017-03-21 |
JP2015517186A (ja) | 2015-06-18 |
US20150034865A1 (en) | 2015-02-05 |
CN104303345A (zh) | 2015-01-21 |
KR101497909B1 (ko) | 2015-03-03 |
PL3291339T3 (pl) | 2022-05-30 |
EP2846382A4 (en) | 2015-12-30 |
JP5905155B2 (ja) | 2016-04-20 |
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