ES2541202T3 - Fosfato de hierro-litio que tiene una estructura de tipo olivino, y método de preparación del mismo - Google Patents
Fosfato de hierro-litio que tiene una estructura de tipo olivino, y método de preparación del mismo Download PDFInfo
- Publication number
- ES2541202T3 ES2541202T3 ES09822200.3T ES09822200T ES2541202T3 ES 2541202 T3 ES2541202 T3 ES 2541202T3 ES 09822200 T ES09822200 T ES 09822200T ES 2541202 T3 ES2541202 T3 ES 2541202T3
- Authority
- ES
- Spain
- Prior art keywords
- iron phosphate
- lithium iron
- preparation
- type structure
- olivine type
- Prior art date
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- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title abstract description 5
- 238000000034 method Methods 0.000 title description 4
- 239000010450 olivine Substances 0.000 title description 3
- 229910052609 olivine Inorganic materials 0.000 title description 3
- 238000002360 preparation method Methods 0.000 title description 2
- 239000011164 primary particle Substances 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 6
- 239000011163 secondary particle Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- 229910019151 PO4-b Inorganic materials 0.000 abstract 1
- 229910019159 PO4−b Inorganic materials 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 238000004220 aggregation Methods 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 229910052738 indium Inorganic materials 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- 229910052727 yttrium Inorganic materials 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
- -1 polyethylene Polymers 0.000 description 12
- 229910052744 lithium Inorganic materials 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 239000011255 nonaqueous electrolyte Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000001027 hydrothermal synthesis Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- 230000003113 alkalizing effect Effects 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Inorganic materials [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 2
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical compound FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- 229910001558 CF3SO3Li Inorganic materials 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical group COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 229910000904 FeC2O4 Inorganic materials 0.000 description 1
- 229910021577 Iron(II) chloride Inorganic materials 0.000 description 1
- 229910007558 Li2SiS3 Inorganic materials 0.000 description 1
- 229910012722 Li3N-LiI-LiOH Inorganic materials 0.000 description 1
- 229910012716 Li3N-LiI—LiOH Inorganic materials 0.000 description 1
- 229910012734 Li3N—LiI—LiOH Inorganic materials 0.000 description 1
- 229910013043 Li3PO4-Li2S-SiS2 Inorganic materials 0.000 description 1
- 229910013035 Li3PO4-Li2S—SiS2 Inorganic materials 0.000 description 1
- 229910012810 Li3PO4—Li2S-SiS2 Inorganic materials 0.000 description 1
- 229910012797 Li3PO4—Li2S—SiS2 Inorganic materials 0.000 description 1
- 229910010739 Li5Ni2 Inorganic materials 0.000 description 1
- 229910003253 LiB10Cl10 Inorganic materials 0.000 description 1
- 229910000552 LiCF3SO3 Inorganic materials 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 229910012346 LiSiO4-LiI-LiOH Inorganic materials 0.000 description 1
- 229910012345 LiSiO4-LiI—LiOH Inorganic materials 0.000 description 1
- 229910012348 LiSiO4—LiI—LiOH Inorganic materials 0.000 description 1
- ZHGDJTMNXSOQDT-UHFFFAOYSA-N NP(N)(N)=O.NP(N)(N)=O.NP(N)(N)=O.NP(N)(N)=O.NP(N)(N)=O.NP(N)(N)=O Chemical compound NP(N)(N)=O.NP(N)(N)=O.NP(N)(N)=O.NP(N)(N)=O.NP(N)(N)=O.NP(N)(N)=O ZHGDJTMNXSOQDT-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 108010039918 Polylysine Proteins 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical class C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- BEKPOUATRPPTLV-UHFFFAOYSA-N [Li].BCl Chemical compound [Li].BCl BEKPOUATRPPTLV-UHFFFAOYSA-N 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 229910001547 lithium hexafluoroantimonate(V) Inorganic materials 0.000 description 1
- 229910001540 lithium hexafluoroarsenate(V) Inorganic materials 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229910001537 lithium tetrachloroaluminate Inorganic materials 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- HSFDLPWPRRSVSM-UHFFFAOYSA-M lithium;2,2,2-trifluoroacetate Chemical compound [Li+].[O-]C(=O)C(F)(F)F HSFDLPWPRRSVSM-UHFFFAOYSA-M 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 150000005181 nitrobenzenes Chemical class 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000012688 phosphorus precursor Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000656 polylysine Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000001008 quinone-imine dye Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- BHZCMUVGYXEBMY-UHFFFAOYSA-N trilithium;azanide Chemical compound [Li+].[Li+].[Li+].[NH2-] BHZCMUVGYXEBMY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/45—Phosphates containing plural metal, or metal and ammonium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/30—Alkali metal phosphates
-
- 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
- H01M10/02—Details
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- 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
- H01M4/043—Processes of manufacture in general involving compressing or compaction
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Fosfato de hierro-litio de tipo olivino que se compone de partículas secundarias que tienen un diámetro medio de partícula (D50) de 5 a 100 μm, formadas mediante la agregación de partículas primarias que tienen un diámetro medio de partícula (D50) de 50 a 550 nm, en el que se agregan las partículas primarias mediante enlaces físicos para formar las partículas secundarias, y en el que las partículas primarias y secundarias tienen una composición representada por la fórmula I a continuación: Li1+aFe1-xMx(PO4-b)Xb (I) en la que M se selecciona de Al, Mg, Ni, Co, Mn, Ti, Ga, Cu, V, Nb, Zr, Ce, In, Zn, Y y combinaciones de los mismos; X se selecciona de F, S, N y combinaciones de los mismos; -0,5 <= a <= +0,5; 0 <= x <= 0,5; y 0 <= b <= 0,1; caracterizado porque las partículas secundarias tienen una porosidad del 15 al 40%.
Description
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E09822200
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de carbonato de propileno, derivados de tetrahidrofurano, éter, propionato de metilo y propionato de etilo.
Como ejemplos del electrolito sólido orgánico utilizado en la presente invención, pueden mencionarse derivados de polietileno, derivados de poli(óxido de etileno), derivados de poli(óxido de propileno), polímeros de éster de ácido fosfórico, poli-lisina con agitación, poliéster-sulfuro, poli(alcoholes vinílicos), poli(fluoruro de vinilideno) y polímeros que contienen grupos de disociación iónica.
Como ejemplos del electrolito sólido inorgánico utilizado en la presente invención, pueden mencionarse nitruros, haluros y sulfatos de litio tales como Li3N, LiI, Li5NI2, Li3N-LiI-LiOH, LiSiO4, LiSiO4-LiI-LiOH, Li2SiS3, Li4SiO4, Li4SiO4LiI-LiOH y Li3PO4-Li2S-SiS2.
La sal de litio es un material que es fácilmente soluble en el electrolito no acuoso mencionado anteriormente y puede incluir, por ejemplo, LiCl, LiBr, LiI, LiClO4, LiBF4, LiB10Cl10, LiPF6, LiCF3SO3, LiCF3CO2, LiAsF6, LiSbF6, LiAlCl4, CH3SO3Li, CF3SO3Li, (CF3SO2)2NLi, cloroborano-litio, ácido carboxílico alifático inferior-litio, imida y tetrafenilborato de litio.
Adicionalmente, para mejorar las características de carga/descarga y retardo de la llama, pueden añadirse al electrolito no acuoso, por ejemplo, piridina, fosfito de trietilo, trietanolamina, éter cíclico, etilendiamina, n-glima, triamida hexafosfórica, derivados de nitrobenceno, azufre, colorantes de quinona-imina, oxazolidinona N-sustituida, imidazolidina N,N-sustituida, dialquil éter de etilenglicol, sales de amonio, pirrol, 2-metoxietanol, tricloruro de aluminio
o similares. Si es necesario, para conferir incombustibilidad, el electrolito no acuoso puede incluir además disolventes que contienen halógeno tales como tetracloruro de carbono y trifluoruro de etileno. Además, para mejorar las características de almacenamiento a alta temperatura, el electrolito no acuoso puede incluir adicionalmente gas dióxido de carbono.
5. Método para preparar fosfato de hierro-litio
Además, la presente invención proporciona un método para preparar fosfato de hierro-litio que comprende las siguientes etapas:
- (1)
- preparar partículas primarias que tienen un diámetro medio de partícula (D50) de 50 a 550 nm y una estructura cristalina de tipo olivino;
- (2)
- mezclar las partículas primarias con un aglutinante y un disolvente para preparar una mezcla; y
- (3)
- secar la mezcla y agregar las partículas primarias para preparar partículas secundarias.
En la etapa (1), las partículas primarias tienen cada una independientemente una estructura cristalina de tipo olivino. El método de preparación de las partículas primarias no está particularmente limitado y los ejemplos del mismo incluyen un método de fase sólida, coprecipitación, un método hidrotérmico y un método hidrotérmico supercrítico.
En una realización preferida, la etapa (1) puede llevarse a cabo mediante un método hidrotérmico supercrítico.
Más específicamente, la preparación de fosfato de hierro-litio puede llevarse a cabo según las siguientes etapas (a) a (c):
- (a)
- en primer lugar, mezclar materias primas con un agente alcalinizante para precipitar un hidróxido de metal de transición;
- (b)
- en segundo lugar, mezclar agua supercrítica o subcrítica con la mezcla obtenida en la etapa (a) para sintetizar óxido compuesto de litio y metal y secar el mismo; y
- (c)
- calcinar el óxido compuesto de litio y metal.
En la etapa (a), como precursor de litio, puede usarse uno de los componentes, Li2CO3, Li(OH), Li(OH) · H2O, LiNO3
- o similares. Como precursor de hierro (Fe) puede usarse un compuesto que contiene hierro bivalente tal como FeSO4, FeC2O4 · 2H2O o FeCl2. Como precursor de fósforo (P) puede usarse una sal de amonio tal como H3PO4, NH4H2PO4, (NH4)2HPO4 o P2O5.
Además, el agente alcalinizante puede ser un hidróxido de metal alcalino, hidróxido de metal alcalinotérreo o un compuesto de amoniaco.
En la etapa (b), el agua supercrítica o subcrítica pueden tener una temperatura de 200 a 700ºC a una presión de 180 a 550 bar. En la etapa (c), la temperatura de calcinación puede ser de 600 a 1.200ºC.
Si se desea, tras la etapa (1) y antes de la etapa (2), puede realizarse un lavado para eliminar sales de impurezas
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Claims (1)
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Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20080103562 | 2008-10-22 | ||
| KR20080103562 | 2008-10-22 | ||
| PCT/KR2009/006084 WO2010047524A2 (ko) | 2008-10-22 | 2009-10-21 | 올리빈 구조의 리튬 철인산화물 및 이의 제조방법 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2541202T3 true ES2541202T3 (es) | 2015-07-16 |
Family
ID=42119831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES09822200.3T Active ES2541202T3 (es) | 2008-10-22 | 2009-10-21 | Fosfato de hierro-litio que tiene una estructura de tipo olivino, y método de preparación del mismo |
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| US (1) | US9458016B2 (es) |
| EP (1) | EP2360117B1 (es) |
| JP (3) | JP5957728B2 (es) |
| KR (1) | KR101118008B1 (es) |
| CN (1) | CN102186768B (es) |
| BR (1) | BRPI0919655B1 (es) |
| CA (1) | CA2741042C (es) |
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| RU (1) | RU2488550C2 (es) |
| TW (1) | TWI535651B (es) |
| WO (1) | WO2010047524A2 (es) |
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| EP2360117B1 (en) | 2015-05-06 |
| KR20100044713A (ko) | 2010-04-30 |
| TW201029919A (en) | 2010-08-16 |
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| US20100233540A1 (en) | 2010-09-16 |
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| CN102186768B (zh) | 2013-08-21 |
| WO2010047524A2 (ko) | 2010-04-29 |
| JP2016128371A (ja) | 2016-07-14 |
| BRPI0919655B1 (pt) | 2019-04-24 |
| CN102186768A (zh) | 2011-09-14 |
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| US9458016B2 (en) | 2016-10-04 |
| CA2741042C (en) | 2014-07-22 |
| BRPI0919655A2 (pt) | 2015-12-01 |
| JP5957728B2 (ja) | 2016-07-27 |
| EP2360117A2 (en) | 2011-08-24 |
| EP2360117A4 (en) | 2013-01-02 |
| JP6254566B2 (ja) | 2017-12-27 |
| TWI535651B (zh) | 2016-06-01 |
| RU2011115055A (ru) | 2012-11-27 |
| KR101118008B1 (ko) | 2012-03-13 |
| WO2010047524A3 (ko) | 2010-07-29 |
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