WO2022220314A1 - Nouvelles particules de précurseur pour matériau actif de cathode de batterie secondaire - Google Patents
Nouvelles particules de précurseur pour matériau actif de cathode de batterie secondaire Download PDFInfo
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- WO2022220314A1 WO2022220314A1 PCT/KR2021/004617 KR2021004617W WO2022220314A1 WO 2022220314 A1 WO2022220314 A1 WO 2022220314A1 KR 2021004617 W KR2021004617 W KR 2021004617W WO 2022220314 A1 WO2022220314 A1 WO 2022220314A1
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- Prior art keywords
- active material
- metals
- precursor
- powder
- particles
- Prior art date
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- 239000002243 precursor Substances 0.000 title claims abstract description 181
- 239000002245 particle Substances 0.000 title claims abstract description 99
- 239000006182 cathode active material Substances 0.000 title claims abstract description 17
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 97
- 150000003624 transition metals Chemical class 0.000 claims abstract description 93
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 19
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 12
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 11
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 11
- 239000011247 coating layer Substances 0.000 claims abstract description 11
- 229910052752 metalloid Inorganic materials 0.000 claims abstract description 11
- 150000002738 metalloids Chemical class 0.000 claims abstract description 11
- 229910001848 post-transition metal Inorganic materials 0.000 claims abstract description 11
- 150000002843 nonmetals Chemical class 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 113
- 239000007774 positive electrode material Substances 0.000 claims description 63
- 239000000203 mixture Substances 0.000 claims description 35
- 229910052744 lithium Inorganic materials 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 28
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 27
- 239000011164 primary particle Substances 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 23
- 238000000975 co-precipitation Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 16
- 238000010304 firing Methods 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 11
- 150000002500 ions Chemical class 0.000 claims description 11
- 239000011812 mixed powder Substances 0.000 claims description 11
- 239000011163 secondary particle Substances 0.000 claims description 8
- 238000002441 X-ray diffraction Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- -1 transition metal salt Chemical class 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 2
- 230000004931 aggregating effect Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 42
- 238000002360 preparation method Methods 0.000 description 31
- 230000000052 comparative effect Effects 0.000 description 27
- 239000011572 manganese Substances 0.000 description 24
- 239000011149 active material Substances 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 20
- 239000000243 solution Substances 0.000 description 17
- 229910052751 metal Inorganic materials 0.000 description 16
- 239000002184 metal Substances 0.000 description 16
- 238000002156 mixing Methods 0.000 description 15
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 14
- 229910052748 manganese Inorganic materials 0.000 description 14
- 229910052759 nickel Inorganic materials 0.000 description 14
- 150000001875 compounds Chemical class 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000001035 drying Methods 0.000 description 12
- 230000001965 increasing effect Effects 0.000 description 12
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 11
- 229910017052 cobalt Inorganic materials 0.000 description 11
- 239000010941 cobalt Substances 0.000 description 11
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 11
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 11
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 11
- 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 10
- 238000005406 washing Methods 0.000 description 10
- 239000011259 mixed solution Substances 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 239000012535 impurity Substances 0.000 description 6
- 229910018626 Al(OH) Inorganic materials 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 150000004679 hydroxides Chemical class 0.000 description 5
- 229910052700 potassium Inorganic materials 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910052713 technetium Inorganic materials 0.000 description 2
- 238000002411 thermogravimetry Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical group [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000004993 emission spectroscopy Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 229910052730 francium Inorganic materials 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 239000001257 hydrogen Chemical group 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 150000003112 potassium compounds Chemical class 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
-
- 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
- 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
-
- 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
-
- 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 novel precursor particle for the production of a cathode active material for a secondary battery, and more particularly, it includes a transition metal precursor particle and a composite element included in its interior and/or a coating layer, wherein the composite element is It relates to a novel precursor particle comprising at least one charge/discharge element and at least one doping element.
- a secondary battery is composed of a positive electrode, a negative electrode, and an electrolyte.
- the cathode material should generally have a high energy density during charging/discharging, and at the same time, the structure should not be destroyed by intercalation and deintercalation of reversible lithium ions. In addition, it should have high electrical conductivity, high chemical stability with respect to the organic solvent used as an electrolyte, low manufacturing cost, and a material that minimizes environmental pollution problems.
- a positive electrode active material is prepared by mixing a powdery transition metal precursor with a Li raw material and then firing at a high temperature.
- the transition metal precursor powder, the Li raw material powder, and the doping raw material powder are all separately present in the form of particles, the raw materials that are physically non-contact or simply contacted during firing are transferred to the surface or inside of the transition metal precursor particles. It is very difficult to diffuse and enter, and the reaction time is long because the movement path of the elements is long, and the probability of uniform contact with each other is not high, so the uniformity of the reaction is also deteriorated.
- novel precursor particles having a secondary particle shape in which a plurality of primary particles are aggregated have been described, it will be possible to manufacture new precursor particles having a primary particle shape depending on the manufacturing method and conditions. Since the knowledge of the primary particles and the secondary particles is known in the art, a detailed description thereof will be omitted herein.
- the presence and location of the transition metal precursor particles and the composite metal can be confirmed even with images taken by SEM, TEM, or the like. At this time, in order to confirm the inside of the new precursor particles, it is preferable to photograph after general polishing or cross-section cutting through an ion beam.
- A/M (molar ratio), which means the content ratio of the elements, means the molar ratio (A/M) of the entire composite element (A) to the transition metal (M), and is greater than 0 as defined above, and is charged at high temperature It is preferable to satisfy the range of more than 0 to 1.5 or less for suppression of volatilization of discharge elements and the like and cation mixing. Further, more preferably, it may be in the range of 0.3 to 1.4, particularly more preferably in the range of 0.6 to 1.2.
- Example 6 is a STEM-EDX analysis photograph of a novel precursor particle according to Example 1-1 performed in Experimental Example 2;
- Sulfates of nickel, cobalt, and manganese are dissolved in a ratio of 6:2:2 to make a solution, and then a co-precipitation reaction is performed to synthesize a transition metal precursor powder having a composition of 6:2:2, and then washed.
- a Li compound (Li 2 CO 3 ) was dissolved in water from which impurities were removed to make a high-concentration solution of 1M or more, and Al 2 (SO 4 ) 3 powder was added to a predetermined value and then dissolved to prepare a mixed solution.
- the transition metal precursor powder was added to the prepared mixed solution and mixed, and filtered through a circulating filter. By removing moisture through drying in an oven at 120° C. for 16 hours, a molar ratio of Li and Metal of 1.03 and Al 2 (SO 4 ) 3 was added to prepare a transition metal precursor powder.
- FIG. 1 SEM images of the precursor powders thus prepared are shown in FIG. 1 .
- both Li and Al, which are composite elements, are included in the transition metal precursor particles, only one type of particles is observed in the prepared powder.
- FIG. 4B An SEM photograph of the thus-prepared positive active material is shown in FIG. 4B . It can be seen that the size of the primary particles in the positive active material of FIG. 4B is smaller than that of FIG. 4A (Comparative Example 1), but larger than that of FIG. 3 (Example 1).
- the transition metal precursor powder prepared above was put in a Kawata mixer, and a Li compound (LiOH) and Al(OH) 3 powder were added and mixed so that the molar ratio of Li and metal was 1.03.
- transition metal precursor powder prepared above in a Kawata mixer, add Li compound (LiOH) and Al(OH) 3 powder together so that the molar ratio of Li and metal becomes 1.03, mix, and then in an air atmosphere at 750° C. for 28 hours
- Li compound (LiOH) was dissolved in water from which impurities were removed to make a high concentration solution of 1M or more, and Zr(SO 4 ) 2 powder was added to a predetermined value and then dissolved to prepare a mixed solution.
- the precursor was added to and mixed with the prepared mixed solution, and filtered through a circulating filtration device. By removing moisture through drying in an oven at 120° C. for 24 hours, a molar ratio of Li and Metal of 1.03 and Zr(SO 4 ) 2 was added to prepare a transition metal precursor powder.
- transition metal precursor powder prepared above in a Kawata mixer, add Li compound (LiOH) and ZrO 2 powder together so that the molar ratio of Li and metal becomes 1.03, mix, and then calcinate at 750° C. for 28 hours in an air atmosphere to Li
- Li Li compound (LiOH) and ZrO 2 powder together so that the molar ratio of Li and metal becomes 1.03, mix, and then calcinate at 750° C. for 28 hours in an air atmosphere to Li
- transition metal precursor powder prepared above in a Kawata mixer, add a Li compound (LiOH) and TiO 2 powder together so that the molar ratio of Li and metal is 1.03, mix, and then calcinate at 750° C. in an air atmosphere for 28 hours.
- Thermogravimetric analysis was performed on the novel precursor powder prepared in Example 1 and the precursor mixed powder (transition metal precursor, Li raw material, Al raw material) prepared in Comparative Example 1, and the results are shown in FIG. 5 It was.
- EDX analysis is performed to analyze the elements inside the particles, but when it is a metal with a very small atomic weight, such as Li, it is impossible to identify the element by EDX analysis.
- EDX analysis was performed on the precursor particles, but the element could not be detected due to the limitations of the analysis method.
- Example 1-1 includes K instead of Li to facilitate analysis, properties of the positive active material were not analyzed, unlike other examples.
- FIGS. 6 and 7A it can be confirmed that Al and K are included in the particles of the novel precursor powder according to the present invention, and it can be seen that the Al and K contents gradually increase from the core part to the surface part.
- FIG. 7b also discloses the results of EDX analysis of the precursor particles of Comparative Example 1 for comparison purposes.
- a surface portion having a thickness of about 300 to 700 nm is formed on the inside and outside based on the outermost surface of the particle, and the complex at the surface portion It can be seen that the element content is higher than that of the inner core part. In this way, the content of each position of the additional element can be controlled according to the manufacturing conditions.
- the R-factor is a value representing the intensity ratio of (006)+(012)/(101), and the lower the value, the higher the crystallinity.
- the (113) peak is different depending on the presence or absence of doping.
- the magnitude of the (113) peak intensity (Intensity) and full width at half maximum (FWHM) was increased compared to Comparative Examples 3 to 5, which was compared with the conventional process, It can be seen that the crystallinity of the doped active material is improved when the sintering is performed using the precursor.
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
La présente invention concerne de nouvelles particules de précurseur pour préparer un matériau actif de cathode, chacune des particules comprenant : une particule de précurseur de métal de transition contenant au moins un type de métal de transition ; et des éléments composites contenus dans l'intérieur et/ou une couche d'enrobage de la particule de précurseur de métal de transition, les éléments composites étant choisis parmi les métaux alcalins, les métaux alcalino-terreux, les métaux de post-transition, les métalloïdes et les non-métaux et comprenant : au moins un élément de charge et de décharge, qui est extrait d'un matériau actif de cathode ou introduit dans ce dernier sous la forme d'un ion pendant la charge et la décharge d'une batterie secondaire ; et au moins un élément dopant utilisé dans le dopage du matériau actif de cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2021/004617 WO2022220314A1 (fr) | 2021-04-13 | 2021-04-13 | Nouvelles particules de précurseur pour matériau actif de cathode de batterie secondaire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2021/004617 WO2022220314A1 (fr) | 2021-04-13 | 2021-04-13 | Nouvelles particules de précurseur pour matériau actif de cathode de batterie secondaire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022220314A1 true WO2022220314A1 (fr) | 2022-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2021/004617 WO2022220314A1 (fr) | 2021-04-13 | 2021-04-13 | Nouvelles particules de précurseur pour matériau actif de cathode de batterie secondaire |
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| Country | Link |
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| WO (1) | WO2022220314A1 (fr) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20030088247A (ko) * | 2002-05-13 | 2003-11-19 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 양극 활물질의 제조 방법 |
| JP2006273620A (ja) * | 2005-03-28 | 2006-10-12 | Mitsubishi Chemicals Corp | リチウム遷移金属複合酸化物及びその製造方法、リチウム遷移金属複合酸化物用焼成前駆体、並びにリチウム二次電池 |
| JP2015164123A (ja) * | 2014-01-31 | 2015-09-10 | 住友金属鉱山株式会社 | ニッケルコバルト複合水酸化物粒子とその製造方法、非水電解質二次電池用正極活物質とその製造方法、および、非水電解質二次電池 |
| KR20150104675A (ko) * | 2014-03-05 | 2015-09-16 | 전자부품연구원 | 양극 활물질, 그를 갖는 리튬이차전지 및 그의 제조 방법 |
| KR102076526B1 (ko) * | 2019-04-30 | 2020-02-12 | 주식회사 엘 앤 에프 | 이차전지용 양극 활물질의 제조를 위한 신규 전구체 입자 및 이를 포함하는 신규 전구체 분말 |
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2021
- 2021-04-13 WO PCT/KR2021/004617 patent/WO2022220314A1/fr active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030088247A (ko) * | 2002-05-13 | 2003-11-19 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 양극 활물질의 제조 방법 |
| JP2006273620A (ja) * | 2005-03-28 | 2006-10-12 | Mitsubishi Chemicals Corp | リチウム遷移金属複合酸化物及びその製造方法、リチウム遷移金属複合酸化物用焼成前駆体、並びにリチウム二次電池 |
| JP2015164123A (ja) * | 2014-01-31 | 2015-09-10 | 住友金属鉱山株式会社 | ニッケルコバルト複合水酸化物粒子とその製造方法、非水電解質二次電池用正極活物質とその製造方法、および、非水電解質二次電池 |
| KR20150104675A (ko) * | 2014-03-05 | 2015-09-16 | 전자부품연구원 | 양극 활물질, 그를 갖는 리튬이차전지 및 그의 제조 방법 |
| KR102076526B1 (ko) * | 2019-04-30 | 2020-02-12 | 주식회사 엘 앤 에프 | 이차전지용 양극 활물질의 제조를 위한 신규 전구체 입자 및 이를 포함하는 신규 전구체 분말 |
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