JP5529286B2 - LiFePO4粉末の製造のための水熱方法 - Google Patents
LiFePO4粉末の製造のための水熱方法 Download PDFInfo
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- 239000000843 powder Substances 0.000 title claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 229910052493 LiFePO4 Inorganic materials 0.000 title abstract 2
- 238000001027 hydrothermal synthesis Methods 0.000 title description 13
- 239000004094 surface-active agent Substances 0.000 claims abstract description 56
- 239000000243 solution Substances 0.000 claims abstract description 48
- 239000006184 cosolvent Substances 0.000 claims abstract description 40
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 39
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 38
- 239000010452 phosphate Substances 0.000 claims abstract description 38
- 239000007864 aqueous solution Substances 0.000 claims abstract description 36
- 239000000203 mixture Substances 0.000 claims abstract description 33
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000002244 precipitate Substances 0.000 claims abstract description 23
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 16
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 11
- 239000012298 atmosphere Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 239000012266 salt solution Substances 0.000 claims abstract description 3
- 229910010707 LiFePO 4 Inorganic materials 0.000 claims description 63
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 32
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical group [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 229910052799 carbon Inorganic materials 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 229910001416 lithium ion Inorganic materials 0.000 claims description 17
- 239000010406 cathode material Substances 0.000 claims description 15
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 6
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 229960000686 benzalkonium chloride Drugs 0.000 claims description 5
- CADWTSSKOVRVJC-UHFFFAOYSA-N benzyl(dimethyl)azanium;chloride Chemical group [Cl-].C[NH+](C)CC1=CC=CC=C1 CADWTSSKOVRVJC-UHFFFAOYSA-N 0.000 claims description 5
- 150000001768 cations Chemical class 0.000 claims description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 125000003158 alcohol group Chemical group 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 2
- -1 iron (II) salt Chemical class 0.000 abstract description 11
- 238000010304 firing Methods 0.000 abstract description 5
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 20
- 239000002245 particle Substances 0.000 description 19
- 230000015572 biosynthetic process Effects 0.000 description 14
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 10
- 238000003786 synthesis reaction Methods 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 6
- 239000002033 PVDF binder Substances 0.000 description 5
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- 238000012360 testing method Methods 0.000 description 5
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 4
- 229920006362 Teflon® Polymers 0.000 description 4
- 125000003710 aryl alkyl group Chemical group 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000002048 multi walled nanotube Substances 0.000 description 4
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- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000006230 acetylene black Substances 0.000 description 3
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- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 2
- 229910013275 LiMPO Inorganic materials 0.000 description 2
- 229910013553 LiNO Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 210000001744 T-lymphocyte Anatomy 0.000 description 2
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- 238000013019 agitation Methods 0.000 description 2
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- 238000002484 cyclic voltammetry Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000003273 ketjen black Substances 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010450 olivine Substances 0.000 description 2
- 229910052609 olivine Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229920000767 polyaniline Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000128 polypyrrole Polymers 0.000 description 2
- 229920000123 polythiophene Polymers 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 238000003991 Rietveld refinement Methods 0.000 description 1
- 229920006373 Solef Polymers 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002447 crystallographic data Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
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- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
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- 239000011888 foil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011850 initial investigation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
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- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000001301 oxygen Substances 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
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- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 238000004627 transmission electron microscopy Methods 0.000 description 1
Classifications
-
- 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
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- 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
-
- 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
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1397—Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Compounds Of Iron (AREA)
Description
1.XRD特性決定
試料の粉末X線回折パターンに関する分析は、標準LiFePO4パターンとの良好な一致を示す(図1)。試料は、十分に結晶化しているようである。より多量のエタノールを用いた試料だけは、いくつかの異質結晶相の存在を示している。
LiFePO4試料の形態を、SEM顕微鏡により検査した(図2)。アルコール等の共溶媒を添加せずに調製した試料の典型的形態は、微小球状粒子を示している。少量のアルコールは、形態を劇的に変化させ、エタノールまたはイソプロパノールの添加により調製した試料は共に、より大きな粒子を示し、より細長く、球形状を失っている。エタノールの量が増加すると、得られる粒はより大きくなり、非常に規則的な菱形粒子を示す。
アルコールを添加せずに調製した試料は、共溶媒を使用していないG. Meligranaら、J. Power Sources 160 (2006) 516において既に報告されているように、低電流率において興味深い電気化学的性能を示す。しかしながら、この試料の容量は、高C率領域では低下する。共溶媒を使用せずに調製したLiFePO4のデータと比較した、アルコールを使用して合成した試料の電気化学的データを、図3に報告する。
Claims (16)
- LiFePO4粉末の製造方法であって、
a)有機界面活性剤の水溶液を提供する工程と、
b)鉄(II)塩の水溶液を提供し、前記鉄(II)塩水溶液をリン酸塩の水溶液と混合して、1:1のFe2+:リン酸塩の化学量論比を有する混合鉄(II)塩/リン酸塩溶液を提供する工程と、
c)一定撹拌下で、混合鉄(II)塩/リン酸塩溶液を、前記界面活性剤溶液に添加する工程と、
d)リチウム塩を含む水溶液を提供し、リチウム塩を含む前記水溶液を、前記混合鉄(II)塩/リン酸塩溶液に添加して、1:1:3のFe2+:リン酸塩:リチウム塩の化学量論比を有する混合物を提供し、得られた混合物を撹拌する工程と、
e)得られた混合物を80〜200℃で加熱する工程と、
f)得られた沈殿物を洗浄して過剰の界面活性剤を除去し、前記沈殿物を濾過および乾燥させる工程と、
g)前記乾燥した沈殿物を、不活性雰囲気中、550〜850℃で少なくとも2時間焼成することにより加熱処理する工程と
を含み、工程(a)から(d)のいずれか1つの工程中、またはその後に、共溶媒が添加され、該共溶媒がアルコールである、製造方法。 - 前記有機界面活性剤が、式NR1R2R3R4 +のカチオンを含み、式中、R1、R2、R3およびR4は、互いに独立して、炭化水素鎖である、請求項1に記載の製造方法。
- 前記有機界面活性剤が、ヘキサデシルトリメチルアンモニウムブロミド(CTAB)、ドデシルトリメチルアンモニウムブロミド(DTAB)、または塩化ベンザルコニウムから選択される、請求項1または2に記載の製造方法。
- 前記共溶媒が、C 1〜C4アルコールである、請求項1から3のいずれか一項に記載の製造方法。
- 前記共溶媒が、工程(d)において得られた最終溶液の全体積を基準として、0体積%を超え40体積%までの量で使用される、請求項1から4のいずれか一項に記載の製造方法。
- 水および共溶媒の混合物中の有機界面活性剤の溶液を提供するために、工程(a)において前記共溶媒が添加される、請求項1から5のいずれか一項に記載の製造方法。
- 工程(a)の前記有機界面活性剤の溶液が、0.3Mから1Mの濃度を有する、請求項1から6のいずれか一項に記載の製造方法。
- 前記乾燥した沈殿物を加熱処理する工程が、600〜700℃で焼成することにより行われる、請求項1から7のいずれか一項に記載の製造方法。
- 焼成が、少なくとも10時間行われる、請求項1から8のいずれか一項に記載の製造方法。
- 前記有機界面活性剤が、CTABであり、CTABの総量:LiFePO4の化学量論比が、0.5〜3:1である、請求項1から9のいずれか一項に記載の製造方法。
- 請求項1から10のいずれか一項に記載の製造方法を使用することにより得られるLiFePO4粉末。
- 前記粉末の炭素含量が、1〜5重量%であり、その調製に使用される前記有機界面活性剤が、CTABである、請求項11に記載のLiFePO4粉末。
- 前記粉末のBET表面積が15〜60m2/gである、請求項11または12に記載のLiFePO4粉末。
- 請求項11から13のいずれか一項に記載のLiFePO4粉末を含む、Liイオン電池用カソード材料。
- 導電体および結合剤をさらに含む、請求項14に記載のカソード材料。
- アノードと、セパレータと、請求項14または15に記載のカソード材料を含むカソードとを備える、Liイオン電池。
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| PCT/EP2009/008016 WO2011057646A1 (en) | 2009-11-10 | 2009-11-10 | Hydrothermal process for the production of lifepo4 powder |
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| CN102390824B (zh) * | 2011-08-10 | 2013-02-20 | 朱叙国 | 磷酸铁锂的制备方法 |
| US20130157133A1 (en) * | 2011-11-17 | 2013-06-20 | Brookhaven Science Associates, Llc | Process for Producing Defect-Free Lithium Metal Phosphate Electrode Materials |
| KR101328381B1 (ko) * | 2011-12-13 | 2013-11-13 | 비나텍주식회사 | 리튬이온전지용 리튬인산철 양극 활물질의 제조방법 및 이를 이용하여 제조된 리튬이온전지용 리튬인산철 양극 활물질 |
| JP5712959B2 (ja) * | 2012-03-30 | 2015-05-07 | 住友金属鉱山株式会社 | リチウム二次電池用正極活物質の前駆体とその製造方法および該前駆体を用いたリチウム二次電池用正極活物質の製造方法 |
| KR101457575B1 (ko) * | 2012-07-25 | 2014-11-03 | 한화케미칼 주식회사 | 수열합성법을 이용한 전극재료의 제조방법 |
| CN102856555A (zh) * | 2012-07-27 | 2013-01-02 | 中国科学院长春应用化学研究所 | 纳米LiFePO4/C锂离子二次电池正极材料及其制备方法与应用 |
| KR101561373B1 (ko) | 2013-01-10 | 2015-10-19 | 주식회사 엘지화학 | 리튬 인산철 나노분말 제조방법 |
| KR101561377B1 (ko) | 2013-01-10 | 2015-10-20 | 주식회사 엘지화학 | 리튬 인산철 나노분말 제조방법 |
| KR101586556B1 (ko) * | 2013-01-10 | 2016-01-20 | 주식회사 엘지화학 | 탄소 코팅 리튬 인산철 나노분말 제조방법 |
| CN103956485B (zh) * | 2014-01-21 | 2016-03-30 | 武汉理工大学 | 一种三维分级结构的磷酸铁锂电极材料及其制备方法 |
| PL233550B1 (pl) * | 2014-03-12 | 2019-10-31 | Akademia Gorniczo Hutnicza Im Stanislawa Staszica W Krakowie | Sposób otrzymywania krystalicznego nanometrycznego fosforanu litowo-żelazowego |
| CN105036103B (zh) * | 2015-08-03 | 2017-08-01 | 山东威能环保电源科技股份有限公司 | 一种长方体型锂电池正极材料磷酸铁锰锂的制备方法 |
| US20180013151A1 (en) | 2016-07-08 | 2018-01-11 | Semiconductor Energy Laboratory Co., Ltd. | Positive electrode active material, power storage device, electronic device, and method for manufacturing positive electrode active material |
| EP3670454A1 (en) | 2018-12-21 | 2020-06-24 | Höganäs AB (publ) | Pure iron containing compound |
| US11634789B2 (en) | 2019-09-16 | 2023-04-25 | InCoR Lithium | Selective lithium extraction from brines |
| KR102807456B1 (ko) * | 2019-12-26 | 2025-05-14 | 주식회사 엘지에너지솔루션 | 음극 활물질의 제조방법 |
| AU2020203801B1 (en) * | 2020-06-09 | 2021-03-11 | VSPC Ltd | Method for making lithium metal phosphates |
| FR3116158B1 (fr) * | 2020-11-10 | 2022-12-02 | Arkema France | Procédé de synthèse de compositions phosphate de Fer Lithié - Carbone |
| CN112573499A (zh) * | 2020-11-11 | 2021-03-30 | 湖南雅城新材料有限公司 | 一种低成本氟化磷酸铁锂正极材料的超临界连续合成法 |
| CN112647120A (zh) * | 2020-12-11 | 2021-04-13 | 枣庄学院 | 一种锂离子电池正极材料助熔剂大面积多点快速成核晶体生长方法 |
| CN113991070A (zh) * | 2021-09-14 | 2022-01-28 | 陕西创普斯新能源科技有限公司 | 一种磷酸铁锂复合材料及其制备方法和应用 |
| ES2986573B2 (es) | 2023-04-13 | 2025-06-19 | De La Camara Delgado Maria De Las Mercedes | Procedimiento industrial de obtencion de fosfato de hierro-litio como material catodico para baterias y sistema de produccion |
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| DE3637146A1 (de) * | 1985-11-01 | 1987-05-07 | Nippon Telegraph & Telephone | Lithium-sekundaerbatterie |
| JP4187523B2 (ja) * | 2002-01-31 | 2008-11-26 | 日本化学工業株式会社 | リチウム鉄リン系複合酸化物炭素複合体、その製造方法、リチウム二次電池正極活物質及びリチウム二次電池 |
| JP4058680B2 (ja) * | 2002-08-13 | 2008-03-12 | ソニー株式会社 | 正極活物質の製造方法及び非水電解質二次電池の製造方法 |
| JP4620378B2 (ja) * | 2003-05-09 | 2011-01-26 | 日本化学工業株式会社 | リン酸リチウム凝集体、その製造方法及びリチウム鉄リン系複合酸化物の製造方法 |
| JP4651960B2 (ja) * | 2004-03-23 | 2011-03-16 | 住友大阪セメント株式会社 | リチウム電池用正極活物質の製造方法とリチウム電池用正極活物質及びリチウム電池用正極材料並びにリチウム電池 |
| US20090117020A1 (en) * | 2007-11-05 | 2009-05-07 | Board Of Regents, The University Of Texas System | Rapid microwave-solvothermal synthesis and surface modification of nanostructured phospho-olivine cathodes for lithium ion batteries |
| DE102007058674A1 (de) * | 2007-12-06 | 2009-07-02 | Süd-Chemie AG | Nanopartikuläre Zusammensetzung und Verfahren zu deren Herstellung |
| TWI369019B (en) * | 2007-12-27 | 2012-07-21 | Ind Tech Res Inst | Cathodal materials for lithium cells, methods for fabricating the same, and lithium secondary cells using the same |
| GB2457952A (en) * | 2008-02-29 | 2009-09-02 | Nanotecture Ltd | Mesoporous particulate material |
| EP2277828B1 (en) * | 2008-03-31 | 2018-08-08 | Toda Kogyo Corp. | Lithium iron phosphate powder manufacturing method, olivine structured lithium iron phosphate powder, cathode sheet using said lithium iron phosphate powder, and non-aqueous solvent secondary battery |
| CN101327922B (zh) * | 2008-07-07 | 2011-07-27 | 杭州金马能源科技有限公司 | 一种LiFePO4的制备方法 |
| JP5859855B2 (ja) * | 2008-10-20 | 2016-02-16 | キネテイツク・リミテツド | 金属化合物の合成 |
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| EP2349925A1 (en) | 2011-08-03 |
| AU2009355290B2 (en) | 2013-05-30 |
| CA2778127C (en) | 2018-02-13 |
| CA2778127A1 (en) | 2011-05-19 |
| CN102630215B (zh) | 2015-11-25 |
| US9484574B2 (en) | 2016-11-01 |
| EP2349925B1 (en) | 2012-03-21 |
| WO2011057646A1 (en) | 2011-05-19 |
| BR112012011104A2 (pt) | 2019-09-24 |
| KR101642007B1 (ko) | 2016-07-22 |
| AU2009355290A1 (en) | 2012-05-24 |
| ATE550297T1 (de) | 2012-04-15 |
| ES2384675T3 (es) | 2012-07-10 |
| JP2013510069A (ja) | 2013-03-21 |
| KR20130004241A (ko) | 2013-01-09 |
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| CN102630215A (zh) | 2012-08-08 |
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