WO2011019171A2 - 리튬티타네이트 나노입자의 제조방법 - Google Patents
리튬티타네이트 나노입자의 제조방법 Download PDFInfo
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- WO2011019171A2 WO2011019171A2 PCT/KR2010/005193 KR2010005193W WO2011019171A2 WO 2011019171 A2 WO2011019171 A2 WO 2011019171A2 KR 2010005193 W KR2010005193 W KR 2010005193W WO 2011019171 A2 WO2011019171 A2 WO 2011019171A2
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/003—Titanates
- C01G23/005—Alkali titanates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82B—NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS, MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES AS DISCRETE UNITS; MANUFACTURE OR TREATMENT THEREOF
- B82B3/00—Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
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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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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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
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
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- 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
- 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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- 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 comprising the step of injecting a reaction raw material containing lithium and titanium into the reactor, mixing at the molecular level (nucleating) by chemical reaction (mixing at the molecular level) and chemical reaction (chemical reaction)
- a method for producing titanate nanoparticles is disclosed.
- Lithium titanate (Li 4 Ti 5 O 12 , hereinafter referred to as LTO) is a material that is expected to be used as a negative electrode active material of a lithium secondary battery.
- the solid phase method is a method for producing LTO by mixing and heat-treating the reaction materials of the solid phase, it is difficult to manufacture uniform nanoparticles due to the high heat treatment temperature, as well as using a fine powder reaction raw material for the production of uniform nanoparticles Since there is a need to increase the dependence on the reaction raw materials there is a problem that the price competitiveness falls.
- the sol-gel method (Sol-Gel) is a method of preparing a LTO by gelling the metal alkoxide to a sol state, and then drying and heat-treating the same, the reaction material used is expensive and reaction based on organic solvents Because of this, there are no commercialized cases with high manufacturing costs.
- One embodiment of the present invention includes the step of injecting a reaction raw material containing lithium and titanium into the reactor to mix at the molecular level and chemical reaction (nucleating) by the chemical reaction (chemical reaction) It provides a method for producing lithium titanate nanoparticles.
- It provides a method for producing lithium titanate nanoparticles comprising the step of chemical reaction (nucleating) the reaction raw material in the reactor (nucleating).
- the chemical reaction may be an acid group reaction.
- the reaction raw material may be injected into the reactor in the form of at least one of a solution form and a suspension form.
- the reaction raw material may include an acid raw material and a basic raw material, the acid raw material may be injected into the reactor through a first raw material injection line, and the basic raw material may be injected into the reactor through a second raw material injection line.
- the acidic raw material may include lithium and titanium, and the basic raw material may include a metal hydroxide.
- the acidic raw material may include titanium, and the basic raw material may include lithium.
- the acidic raw material may include lithium, and the basic raw material may include titanium.
- the basic raw material may include lithium and titanium, and the acidic raw material may include at least one of an inorganic acid and an organic acid.
- the time (T M ) required for mixing at the molecular level may be shorter than the time (T N ) required for nucleation.
- the T M may be 10 to 100 ⁇ s, and the T N may be 1 ⁇ m or less.
- the internal temperature of the reactor may be maintained at 0 ⁇ 90 °C.
- the molar ratio (Li / Ti) of lithium and titanium in the reaction raw material may be 0.8 to 1.0.
- the residence time of the reaction raw material in the reactor may be 1ms ⁇ 10s.
- the reactor includes a chamber defining an internal space, a rotatable permeable packed bed disposed in the chamber and filled with a porous filler, and at least one raw material injection for injecting the reaction raw material into the internal space. It may be a high gravity rotating packed bed reactor having a line and a slurry outlet for discharging the slurry from the inner space.
- the reactor may further include a gas outlet for discharging gas from the internal space.
- the porous filler may contain titanium.
- Centrifugal acceleration of the permeable packed layer may be maintained at 10 ⁇ 100,000 m / s 2 .
- high purity lithium titanate in which Li 2 TiO 3 peaks are not substantially detected in an X-ray diffraction pattern may prepare nanoparticles.
- a reaction raw material including lithium and titanium into a reactor, mixing at the molecular level and chemical reaction to produce nucleating crystals.
- Lithium titer capable of inexpensively obtaining high purity nanoparticles in which the particle size distribution is uniform and the Li 2 TiO 3 peak of the (133) plane whose 2 ⁇ is around 43 to 44 degrees in the X-ray diffraction pattern is not substantially detected.
- FIG. 1 is a cross-sectional view schematically showing a high gravity rotary packed bed reactor used in the method for producing lithium titanate nanoparticles according to an embodiment of the present invention.
- Example 2 is a TEM photograph of the lithium titanate powder prepared in Example 1 of the present invention.
- Example 3 is an X-ray diffraction pattern of the lithium titanate powder prepared in Example 1 of the present invention.
- Example 4 is a TEM photograph of the lithium titanate powder prepared in Example 2 of the present invention.
- Example 5 is an X-ray diffraction pattern of the lithium titanate powder prepared in Example 2 of the present invention.
- Example 6 is a TEM photograph of the lithium titanate powder prepared in Example 3 of the present invention.
- Example 7 is an X-ray diffraction pattern of the lithium titanate powder prepared in Example 3 of the present invention.
- Example 8 is a TEM photograph of the lithium titanate powder prepared in Example 4 of the present invention.
- Example 9 is an X-ray diffraction pattern of the lithium titanate powder prepared in Example 4 of the present invention.
- Method for producing lithium titanate nanoparticles is a step of injecting a reaction raw material containing lithium and titanium into the reactor mixing at the molecular level in the reactor (mixing at the molecular level), and Chemical reaction of the reaction raw materials in a reactor to produce nucleating and crystal-growing them. Thereafter, the slurry discharged from the reaction may be filtered, washed, dried and / or heat treated to obtain a uniform nano-sized lithium titanate (LTO).
- LTO nano-sized lithium titanate
- 'lithium' means a lithium compound, a lithium atom and / or a lithium ion in some cases
- 'titanium' means a titanium compound, a titanium atom and / or a titanium ion in some cases.
- the "molecular level of mixing” means the level of mixing at which each molecule is mixed.
- 'mixing' can be divided into 'macro-mixing' and 'micro-mixing', where 'macro mixing' means mixing at the vessel scale.
- 'micro mixing' is the same as the above-described molecular level mixing.
- the reaction raw material may be injected into the reactor in the form of at least one of a solution form and a suspension form.
- the reaction raw material may include an acid raw material and a basic raw material.
- the acidic raw material may be injected into the reactor through a first raw material injection line
- the basic raw material may be injected into the reactor through a second raw material injection line.
- the acidic raw material and the basic raw material are injected into the reactor through the first raw material injection line and the second raw material injection line, respectively, mixed at the molecular level in the reactor, and then subjected to a chemical reaction such as an acid salt group reaction to LTO nanoparticles. Will form particles.
- the acidic raw material may include lithium and titanium.
- the acidic raw material may include lithium chloride and titanium chloride.
- the acidic raw material may be, for example, an aqueous LiCl / TiCl 4 solution or a water suspension.
- the basic raw material may include a metal hydroxide such as NaOH.
- the acidic raw material may include titanium, and the basic raw material may include lithium.
- the acidic raw material may include titanium chloride such as TiCl 4, and the basic raw material may include lithium hydroxide such as LiOH.
- the acidic raw material may include lithium
- the basic raw material may include titanium
- the acidic raw material may include lithium chloride such as LiCl
- the basic raw material may include titanium hydroxide such as Ti (OH) 4 .
- the basic raw material may include lithium and titanium.
- the basic raw material may include lithium hydroxide and titanium hydroxide.
- the basic raw material may be, for example, an LiOH / Ti (OH) 4 aqueous solution or a water suspension.
- the acidic raw material may include an inorganic acid and / or an organic acid such as HCl or acetic acid.
- Such lithium chloride, titanium chloride, lithium hydroxide and titanium hydroxide can be inexpensive to reduce the manufacturing cost of lithium titanate nanoparticles.
- the chemical reaction may be an acid group reaction in which the acid and the base in the reaction raw material react by one equivalent, thereby losing the properties of the acid and the base.
- the time (T M ) required for mixing at the molecular level may be shorter than the time (T N ) required for nucleation.
- 'T M ' refers to the time taken from the start of mixing until the composition of the mixture becomes spatially uniform
- 'T N ' means that the seed formation rate is in equilibrium from the point where the seed starts to form. It means the time it takes to reach and produce seed at a constant rate.
- T M when the maximum mixing between molecules is made before the start of nucleation in the reactor, nanoparticle-sized LTO particles having a uniform particle size distribution can be prepared.
- the T M is 10 ⁇ 100 ⁇ s
- the T N may be 1 ⁇ or less. If the T M is less than 10 GPa, it is not preferable from the economical point of view. In addition, when the T N exceeds 1 kPa, an appropriate level of reaction does not occur and thus yield is not preferable.
- the internal temperature of the reactor may be maintained at 0 ⁇ 90 °C, for example, 20 ⁇ 80 °C. If the temperature is less than 0 ° C., an appropriate level of yield cannot be secured, which is not preferable. If the temperature is higher than 90 ° C., T N is difficult to control, which is not preferable.
- the molar ratio (Li / Ti) of lithium and titanium in the reaction raw material may be 0.8 ⁇ 1.0. If the molar ratio (Li / Ti) is less than 0.8, it is not preferable because Ti-rich crystals are produced as by-products.
- the residence time of the reaction raw material in the reactor may be 1ms ⁇ 10s, for example, 10ms ⁇ 5s. If the residence time of the reaction raw material is less than 1 ms, an appropriate level of reaction does not occur, and it is not preferable. If it exceeds 10 s, size adjustment becomes difficult, and economical efficiency is not preferable.
- FIG. 1 is a cross-sectional view schematically showing a high gravity rotating packed bed reactor used in the method for producing lithium titanate nanoparticles according to an embodiment of the present invention.
- This high gravity rotary packed reactor 10 is a chamber 11 defining an interior space, a rotatable permeable packed bed disposed in the chamber 11 and filled with a porous filler 12a ( 12) at least one raw material injection line for injecting the reaction raw material into the inner space; And a slurry outlet 15 for discharging the slurry from the inner space.
- the reactor 10 may further include a gas outlet 16 for discharging gas from the internal space.
- Porous filler 12a may contain titanium which is highly corrosion resistant. Specifically, the porous filler 12a may be titanium foam.
- the permeable packed layer 12 is filled with a porous filler 12a therein and may transmit the reaction raw material injected into the reactor 10 in the form of a solution or a suspension, and may be rotated by the drive shaft 13. have.
- the centrifugal acceleration of the permeable filler 12 can be maintained at 10 ⁇ 100,000 m / s 2 . If the centrifugal acceleration of the permeable packed layer 12 is less than 10 m / s 2, the reaction may not proceed to an appropriate level. On the other hand, the centrifugal acceleration of the transparent packed layer 12 is hard to exceed 100,000 m / s 2 .
- the reaction raw materials can be mixed at the molecular level by high centrifugal force by controlling the rotational speed of the permeable packed bed 12, so that the reaction proceeds smoothly even at low temperatures. You can. In other words, by uniformly mixing the reaction material of the fine droplets before the LTO particles grow, it is possible to obtain uniform LTO nanoparticles at low temperature.
- the LTO prepared by the method for preparing lithium titanate nanoparticles according to the embodiment of the present invention may have a spinel structure, and an average particle diameter thereof may be 0.01 to 10 ⁇ m, for example, 0.05 to 0.8 ⁇ m.
- the height ratio of the Li 2 TiO 3 peak on the (133) plane and the Li 4 Ti 5 O 12 peak on the (400) plane having a 2 ⁇ of around 43 to 44 degrees is 0.5 / 100 (measurement limit of the XRD equipment)
- the prepared lithium titanate nanoparticles can be used for the negative electrode material of the lithium secondary battery.
- a reactor 10 similar to the reactor of FIG. 1 was manufactured by itself.
- the specifications of the manufactured reactor 10 were as follows.
- Permeable filling layer 12 cylindrical, stainless steel, inner diameter 10 cm, outer diameter 30 cm, thickness 10 cm
- Porous filler (12a) 4 titanium foams (about 400 voids / m, outer diameter 30cm, inner diameter 10.5cm, axial thickness 2.5cm)
- the drive shaft 13 of the reactor 10 is rotated to rotate the permeable packed bed 12 at a speed of 3000 rpm (centrifugal acceleration: 10000 m / s 2 ) while the reactor 10
- the internal temperature of was maintained at 80 ° C.
- the drive shaft 13 of the reactor 10 prepared in Example 1 was rotated to make the permeable packed bed 12 at a speed of 3000 rpm (centrifugal acceleration: 500 m / s 2 ).
- the internal temperature of the reactor 10 was maintained at 90 ° C. while rotating.
- LTO nanoparticles were prepared in the same manner as in Example 2, except that the LTO nanoparticles were continuously injected into the reactor 10 at a flow rate of 40 L / min, filtered, washed, and dried to obtain LTO powder.
- a 6.0 mol / L aqueous HCl solution, a 2.0 mol / L LiOH aqueous solution and a 2.0 mol / L Ti (OH) 4 aqueous solution are prepared, and the aqueous LiOH aqueous solution and Ti (OH) 4 aqueous solution are mixed.
- the molar ratio (Li / Ti) of Li and Ti in the mixed solution was 1.0.
- the HCl aqueous solution and the LiOH / Ti (OH) 4 mixed solution were respectively 40 L / in the reactor 10 through the first raw material injection line 4-1 and the second raw material injection line 4-1.
- LTO nanoparticles were prepared in the same manner as in Example 1, except that the mixture was continuously injected at a flow rate of min, and subjected to heat treatment at a temperature of 850 ° C. for 3 hours after filtration, washing, and drying to obtain LTO powder. .
- Li 2 CO 3 and 5 mol of TiO 2 were mixed with 10 mol of water for 24 hours in a ball mill, dried in an oven at 120 ° C., and heat-treated at 950 ° C. for 3 hours to obtain LTO powder.
- the manufacturing method according to an embodiment of the present invention LTO particles having a relatively uniform particle size distribution and nano-sized particle size, despite the use of inexpensive reaction raw materials, compared to the manufacturing method of the comparative example It can be seen that can be obtained. Specifically, it can be seen from FIGS. 2, 4, 6, and 8 that the particles prepared in Examples 1 to 4 have a nano size and that the particle size distribution of each particle is uniform, and FIGS. 3, 5, and 7 From 9 and it can be seen that each particle produced is LTO (Li 4 Ti 5 O 12 ). From the XRD pattern (Fig.
- each numerical value (for example, 200 nm in FIG. 2) shown in FIGS. 2, 4, 6, 8, and 10 means the length of the thick bar shown in each figure, and FIGS. 3, 5, 7, 9
- each numerical value (eg, (111) in FIG. 3) indicated by 11 means a crystal plane index.
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Abstract
Description
TEM | XRD | ||
사양 | 제조사 | JEOL | Rikagu |
모델명 | 2100F | D/Max-2500VK/PC | |
분석조건 | 200kV | CuKa radiation, speed 4°min-1 |
Claims (16)
- 리튬 및 티타늄을 포함하는 반응원료를 반응기에 주입하여 상기 반응기내에서 분자 수준으로 혼합(mixing at the molecular level)하는 단계; 및상기 반응기 내에서 상기 반응원료를 화학반응(chemical reaction)시켜 결정핵을 생성(nucleating)하는 단계를 포함하는 리튬티타네이트 나노입자의 제조방법.
- 제1항에 있어서,상기 화학반응은 산염기 반응인 리튬티타네이트 나노입자의 제조방법.
- 제1항에 있어서,상기 반응원료는 용액 형태 및 현탁액 형태 중 적어도 하나의 형태로 상기 반응기에 주입되는 리튬티타네이트 나노입자의 제조방법.
- 제3항에 있어서,상기 반응원료는 산성 원료 및 염기성 원료를 포함하고, 상기 산성원료는 제1 원료 주입라인을 통해 상기 반응기에 주입되고, 상기 염기성 원료는 제2 원료 주입라인을 통해 상기 반응기에 주입되는 리튬티타네이트 나노입자의 제조방법.
- 제4항에 있어서,상기 산성 원료는 리튬 및 티타늄을 포함하고, 상기 염기성 원료는 금속 수산화물을 포함하는 리튬티타네이트 나노입자의 제조방법.
- 제4항에 있어서,상기 산성 원료는 티타늄을 포함하고, 상기 염기성 원료는 리튬을 포함하는 리튬티타네이트 나노입자의 제조방법.
- 제4항에 있어서,상기 산성 원료는 리튬을 포함하고, 상기 염기성 원료는 티타늄을 포함하는 리튬티타네이트 나노입자의 제조방법.
- 제4항에 있어서,상기 염기성 원료는 리튬 및 티타늄을 포함하고, 상기 산성 원료는 무기산 및 유기산 중 적어도 1종을 포함하는 리튬티타네이트 나노입자의 제조방법.
- 제1항에 있어서,상기 분자 수준의 혼합에 소요되는 시간(TM)은 상기 결정핵 생성에 소요되는 시간(TN) 보다 짧은 리튬티타네이트 나노입자의 제조방법.
- 제9항에 있어서,상기 TM은 10~100㎲이고, 상기 TN은 1㎳ 이하인 리튬티타네이트 나노입자의 제조방법.
- 제1항에 있어서,상기 반응기의 내부 온도는 0~90℃로 유지되는 리튬티타네이트 나노입자의 제조방법.
- 제1항에 있어서,상기 반응원료 중 리튬과 티타늄의 몰비(Li/Ti)는 0.8~1.0인 리튬티타네이트 나노입자의 제조방법.
- 제1항에 있어서,상기 반응기 내에서 상기 반응원료의 체류시간은 1㎳~10s인 리튬티타네이트 나노입자의 제조방법.
- 제1항에 있어서,상기 반응기는,내부공간을 한정하는 챔버(chamber);상기 챔버내에 배치되고 다공성 충전재가 충전된 회전가능한 투과성 충전층(permeable packed bed);상기 내부공간에 상기 반응원료를 주입하는 적어도 하나의 원료 주입라인; 및상기 내부공간으로부터 슬러리를 배출하는 슬러리 배출구를 구비하는 고중력 회전 충전형 반응기(high gravity rotating packed bed reactor)인 리튬티타네이트 나노입자의 제조방법.
- 제14항에 있어서,상기 투과성 충전층의 원심 가속도는 10~100,000m/s2로 유지되는 리튬티타네이트 나노입자의 제조방법.
- 제 1항에 있어서,X선 회절 패턴에서 Li2TiO3 피크가 실질적으로 검출되지 않는 고순도의 리튬티타네이트 나노입자의 제조방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2012524637A JP5598545B2 (ja) | 2009-08-11 | 2010-08-09 | チタン酸リチウムナノ粒子の製造方法 |
CN201080035853.9A CN102471086B (zh) | 2009-08-11 | 2010-08-09 | 钛酸锂纳米粒子的制造方法 |
EP10808320.5A EP2465821B1 (en) | 2009-08-11 | 2010-08-09 | Method for producing nanoscale lithium titanate particles |
US13/389,502 US8398953B2 (en) | 2009-08-11 | 2010-08-09 | Method of preparing lithium titanate nanoparticles |
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KR1020090073999A KR101128860B1 (ko) | 2009-08-11 | 2009-08-11 | 리튬티타네이트 나노입자의 제조방법 |
KR10-2009-0073999 | 2009-08-11 |
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WO2011019171A2 true WO2011019171A2 (ko) | 2011-02-17 |
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EP (1) | EP2465821B1 (ko) |
JP (1) | JP5598545B2 (ko) |
KR (1) | KR101128860B1 (ko) |
CN (1) | CN102471086B (ko) |
WO (1) | WO2011019171A2 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US9537149B2 (en) | 2010-04-30 | 2017-01-03 | Samsung Sdi Co., Ltd. | Method for manufacturing a lithium transition metal phosphate |
Families Citing this family (9)
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US9428396B2 (en) * | 2011-04-28 | 2016-08-30 | Ishihara Sangyo Kaisha, Ltd | Method for producing lithium titanate precursor, method for producing lithium titanate, lithium titanate, electrode active material, and electricity storage device |
KR20120140396A (ko) * | 2011-06-21 | 2012-12-31 | 삼성정밀화학 주식회사 | 전지 특성을 개선시키는 전극 활물질 제조 방법 및 그로부터 제조된 전극 활물질을 포함하는 리튬이차전지 |
KR101973052B1 (ko) | 2012-08-10 | 2019-04-26 | 삼성에스디아이 주식회사 | 리튬 금속인산화물의 제조방법 |
WO2014056111A1 (en) * | 2012-10-10 | 2014-04-17 | HYDRO-QUéBEC | Layered and spinel lithium titanates and processes for preparing the same |
CN103035898A (zh) * | 2012-12-21 | 2013-04-10 | 深圳市天骄科技开发有限公司 | 一种纳米片状锂离子电池正极材料及其制备方法 |
KR102048839B1 (ko) * | 2013-12-27 | 2019-11-27 | 삼성전기주식회사 | 티탄산바륨의 제조방법 |
CN104192873B (zh) * | 2014-09-23 | 2016-08-24 | 中国科学院青海盐湖研究所 | 一种通过控制物料浓度提高碳酸锂碳化效率的方法 |
US11001506B2 (en) * | 2017-02-21 | 2021-05-11 | International Advanced Research Centre For Powder Metallurgy And New Materials (Arci) | Method of producing high performance lithium titanate anode material for lithium ion battery applications |
KR102615856B1 (ko) | 2021-06-14 | 2023-12-20 | 우석대학교 산학협력단 | 리튬 이차전지 음극재 |
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EP0002568B1 (en) * | 1977-12-01 | 1984-06-20 | Imperial Chemical Industries Plc | Mass transfer apparatus and its use |
JPH09309726A (ja) | 1996-03-18 | 1997-12-02 | Ishihara Sangyo Kaisha Ltd | チタン酸リチウム水和物およびその製造方法 |
JP3894614B2 (ja) * | 1996-03-18 | 2007-03-22 | 石原産業株式会社 | チタン酸リチウムの製造方法 |
CA2421157A1 (en) * | 2000-09-05 | 2002-03-14 | Altair Technologies, Inc. | Method for producing mixed metal oxides and metal oxide compounds |
US6827921B1 (en) * | 2001-02-01 | 2004-12-07 | Nanopowder Enterprises Inc. | Nanostructured Li4Ti5O12 powders and method of making the same |
ATE285379T1 (de) * | 2001-07-20 | 2005-01-15 | Altair Nanomaterials Inc | Verfahren zur herstellung von lithiumtitanat |
CN1313378C (zh) * | 2002-09-24 | 2007-05-02 | 北京化工大学 | 制备钛酸锶粉体的方法 |
CN100335415C (zh) * | 2003-02-28 | 2007-09-05 | 新加坡纳米材料科技有限公司 | 一种制备各种晶态钙钛矿类化合物粉体的方法 |
DE10319464A1 (de) * | 2003-04-29 | 2004-11-18 | Basf Ag | Verfahren zur Herstellung von nanokristallinen Lithiumtitanat-Spinellen |
JP4668539B2 (ja) | 2004-02-25 | 2011-04-13 | 石原産業株式会社 | チタン酸リチウムの製造方法及びリチウム電池の製造方法 |
KR20080023931A (ko) * | 2006-09-12 | 2008-03-17 | 삼성에스디아이 주식회사 | 플라즈마 표시 장치 및 그 구동 방법 |
KR101045416B1 (ko) * | 2006-09-12 | 2011-06-30 | 주식회사 엘지화학 | 리튬티탄산화물 분말, 그 제조방법, 이를 포함하는 전극,및 이차전지 |
KR100759401B1 (ko) * | 2006-11-20 | 2007-09-19 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 음극 활물질, 그의 제조 방법 및 그를포함하는 리튬 이차 전지 |
WO2008122148A1 (zh) * | 2007-04-06 | 2008-10-16 | Ningbo Wanhua Polyurethanes Co., Ltd. | 一种制备多亚甲基多苯基多胺的方法 |
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- 2010-08-09 JP JP2012524637A patent/JP5598545B2/ja not_active Expired - Fee Related
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US9537149B2 (en) | 2010-04-30 | 2017-01-03 | Samsung Sdi Co., Ltd. | Method for manufacturing a lithium transition metal phosphate |
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KR101128860B1 (ko) | 2012-03-23 |
CN102471086B (zh) | 2014-06-04 |
WO2011019171A3 (ko) | 2011-05-19 |
KR20110016341A (ko) | 2011-02-17 |
JP5598545B2 (ja) | 2014-10-01 |
EP2465821A2 (en) | 2012-06-20 |
US8398953B2 (en) | 2013-03-19 |
CN102471086A (zh) | 2012-05-23 |
US20120141360A1 (en) | 2012-06-07 |
JP2013501704A (ja) | 2013-01-17 |
EP2465821A4 (en) | 2014-01-08 |
EP2465821B1 (en) | 2017-01-18 |
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